Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r077-tall-174860074700307.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is DoubleExponent-PT-010, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r077-tall-174860074700307
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 592K
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 41K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 124K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K 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 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 169K 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 booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1748647628396

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DoubleExponent-PT-010
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2025-05-30 23:27:09] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2025-05-30 23:27:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-30 23:27:10] [INFO ] Load time of PNML (sax parser for PT used): 130 ms
[2025-05-30 23:27:10] [INFO ] Transformed 534 places.
[2025-05-30 23:27:10] [INFO ] Transformed 498 transitions.
[2025-05-30 23:27:10] [INFO ] Parsed PT model containing 534 places and 498 transitions and 1404 arcs in 280 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 534/534 places, 498/498 transitions.
Reduce places removed 4 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 120 transitions
Trivial Post-agglo rules discarded 120 transitions
Performed 120 trivial Post agglomeration. Transition count delta: 120
Iterating post reduction 0 with 124 rules applied. Total rules applied 124 place count 530 transition count 378
Reduce places removed 120 places and 0 transitions.
Iterating post reduction 1 with 120 rules applied. Total rules applied 244 place count 410 transition count 378
Performed 20 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 20 Pre rules applied. Total rules applied 244 place count 410 transition count 358
Deduced a syphon composed of 20 places in 19 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 2 with 40 rules applied. Total rules applied 284 place count 390 transition count 358
Performed 94 Post agglomeration using F-continuation condition.Transition count delta: 94
Deduced a syphon composed of 94 places in 2 ms
Reduce places removed 94 places and 0 transitions.
Iterating global reduction 2 with 188 rules applied. Total rules applied 472 place count 296 transition count 264
Performed 18 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 18 places in 2 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 2 with 36 rules applied. Total rules applied 508 place count 278 transition count 264
Applied a total of 508 rules in 129 ms. Remains 278 /534 variables (removed 256) and now considering 264/498 (removed 234) transitions.
// Phase 1: matrix 264 rows 278 cols
[2025-05-30 23:27:10] [INFO ] Computed 51 invariants in 57 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:27:10] [INFO ] Implicit Places using invariants in 466 ms returned [229, 230]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 519 ms to find 2 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 276/534 places, 264/498 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 276 transition count 263
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 275 transition count 263
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 8 place count 272 transition count 260
Applied a total of 8 rules in 19 ms. Remains 272 /276 variables (removed 4) and now considering 260/264 (removed 4) transitions.
// Phase 1: matrix 260 rows 272 cols
[2025-05-30 23:27:10] [INFO ] Computed 49 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:27:11] [INFO ] Implicit Places using invariants in 335 ms returned []
[2025-05-30 23:27:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:27:11] [INFO ] State equation strengthened by 20 read => feed constraints.
[2025-05-30 23:27:12] [INFO ] Implicit Places using invariants and state equation in 1443 ms returned []
Implicit Place search using SMT with State Equation took 1791 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 272/534 places, 260/498 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 2475 ms. Remains : 272/534 places, 260/498 transitions.
Discarding 58 transitions out of 260. Remains 202
Initial state reduction rules removed 1 formulas.
[2025-05-30 23:27:13] [INFO ] Flatten gal took : 126 ms
[2025-05-30 23:27:13] [INFO ] Flatten gal took : 49 ms
[2025-05-30 23:27:13] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8980632192720137979.gal : 22 ms
[2025-05-30 23:27:13] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8450023966674737527.prop : 6 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8980632192720137979.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8450023966674737527.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
RANDOM walk for 40000 steps (4860 resets) in 2654 ms. (15 steps per ms) remains 178/201 properties
Loading property file /tmp/ReachabilityCardinality8450023966674737527.prop.
BEST_FIRST walk for 401 steps (31 resets) in 24 ms. (16 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (32 resets) in 52 ms. (7 steps per ms) remains 178/178 properties
BEST_FIRST walk for 404 steps (26 resets) in 31 ms. (12 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (31 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (24 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (30 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (29 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (26 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (25 resets) in 12 ms. (31 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (29 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (31 resets) in 15 ms. (25 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (26 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (32 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (31 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (28 resets) in 12 ms. (30 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (30 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (27 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (25 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (29 resets) in 12 ms. (30 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (24 resets) in 15 ms. (25 steps per ms) remains 178/178 properties
Reachability property qltransition_210 is true.
BEST_FIRST walk for 402 steps (30 resets) in 12 ms. (30 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (34 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
Reachability property qltransition_114 is true.
BEST_FIRST walk for 402 steps (32 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (31 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (28 resets) in 11 ms. (33 steps per ms) remains 178/178 properties
SDD proceeding with computation,199 properties remain. new max is 2
SDD size :1 after 3
BEST_FIRST walk for 403 steps (27 resets) in 14 ms. (26 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (31 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (27 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
Reachability property qltransition_149 is true.
Reachability property qltransition_145 is true.
Reachability property qltransition_98 is true.
BEST_FIRST walk for 403 steps (31 resets) in 12 ms. (31 steps per ms) remains 178/178 properties
Reachability property qltransition_36 is true.
BEST_FIRST walk for 400 steps (30 resets) in 11 ms. (33 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (26 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (25 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
SDD proceeding with computation,195 properties remain. new max is 2
SDD size :3 after 7
BEST_FIRST walk for 401 steps (27 resets) in 25 ms. (15 steps per ms) remains 178/178 properties
SDD proceeding with computation,195 properties remain. new max is 4
SDD size :7 after 8
BEST_FIRST walk for 400 steps (29 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (24 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (27 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (28 resets) in 9 ms. (40 steps per ms) remains 178/178 properties
BEST_FIRST walk for 403 steps (28 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (29 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (29 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (29 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (33 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
SDD proceeding with computation,195 properties remain. new max is 8
SDD size :8 after 9
BEST_FIRST walk for 400 steps (32 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (26 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 401 steps (27 resets) in 8 ms. (44 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (32 resets) in 11 ms. (33 steps per ms) remains 178/178 properties
BEST_FIRST walk for 402 steps (33 resets) in 10 ms. (36 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (29 resets) in 15 ms. (25 steps per ms) remains 178/178 properties
Reachability property qltransition_15 is true.
SDD proceeding with computation,194 properties remain. new max is 8
SDD size :9 after 11
BEST_FIRST walk for 401 steps (29 resets) in 7 ms. (50 steps per ms) remains 178/178 properties
BEST_FIRST walk for 400 steps (26 resets) in 7 ms. (50 steps per ms) remains 178/178 properties
SDD proceeding with computation,194 properties remain. new max is 16
SDD size :11 after 17
Reachability property qltransition_228 is true.
Reachability property qltransition_167 is true.
Reachability property qltransition_160 is true.
Reachability property qltransition_100 is true.
Reachability property qltransition_70 is true.
Reachability property qltransition_61 is true.
[2025-05-30 23:27:13] [INFO ] Invariant cache hit.
SDD proceeding with computation,188 properties remain. new max is 16
SDD size :17 after 27
[2025-05-30 23:27:13] [INFO ] State equation strengthened by 20 read => feed constraints.
Reachability property qltransition_24 is true.
SDD proceeding with computation,187 properties remain. new max is 16
SDD size :27 after 32
SDD proceeding with computation,187 properties remain. new max is 32
SDD size :32 after 40
Reachability property qltransition_94 is true.
SDD proceeding with computation,186 properties remain. new max is 32
SDD size :40 after 63
Reachability property qltransition_250 is true.
Reachability property qltransition_208 is true.
Reachability property qltransition_179 is true.
Reachability property qltransition_178 is true.
Reachability property qltransition_117 is true.
Reachability property qltransition_116 is true.
Reachability property qltransition_111 is true.
Reachability property qltransition_107 is true.
Reachability property qltransition_28 is true.
SDD proceeding with computation,177 properties remain. new max is 32
SDD size :63 after 72
Reachability property qltransition_118 is true.
Reachability property qltransition_108 is true.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,175 properties remain. new max is 32
SDD size :72 after 83
SDD proceeding with computation,175 properties remain. new max is 64
SDD size :83 after 101
Reachability property qltransition_230 is true.
Reachability property qltransition_119 is true.
SDD proceeding with computation,173 properties remain. new max is 64
SDD size :101 after 138
SDD proceeding with computation,173 properties remain. new max is 128
SDD size :138 after 333
Reachability property qltransition_254 is true.
Reachability property qltransition_182 is true.
Reachability property qltransition_181 is true.
Reachability property qltransition_120 is true.
Reachability property qltransition_113 is true.
Reachability property qltransition_112 is true.
Reachability property qltransition_109 is true.
SDD proceeding with computation,166 properties remain. new max is 128
SDD size :333 after 496
SDD proceeding with computation,166 properties remain. new max is 256
SDD size :496 after 836
SDD proceeding with computation,166 properties remain. new max is 512
SDD size :836 after 1481
Reachability property qltransition_252 is true.
Reachability property qltransition_248 is true.
Reachability property qltransition_184 is true.
Reachability property qltransition_122 is true.
Reachability property qltransition_121 is true.
Reachability property qltransition_115 is true.
Reachability property qltransition_110 is true.
Reachability property qltransition_11 is true.
Reachability property qltransition_10 is true.
Reachability property qltransition_9 is true.
Reachability property qltransition_8 is true.
Reachability property qltransition_4 is true.
Reachability property qltransition_1 is true.
Reachability property qltransition_0 is true.
SDD proceeding with computation,152 properties remain. new max is 512
SDD size :1481 after 7380
SDD proceeding with computation,152 properties remain. new max is 1024
SDD size :7380 after 37045
Reachability property qltransition_188 is true.
Reachability property qltransition_125 is true.
Reachability property qltransition_124 is true.
Reachability property qltransition_12 is true.
Reachability property qltransition_6 is true.
Reachability property qltransition_5 is true.
Reachability property qltransition_2 is true.
SDD proceeding with computation,145 properties remain. new max is 1024
SDD size :37045 after 96613
SDD proceeding with computation,145 properties remain. new max is 2048
SDD size :96613 after 165778
SDD proceeding with computation,145 properties remain. new max is 4096
SDD size :165778 after 309882
SDD proceeding with computation,145 properties remain. new max is 8192
SDD size :309882 after 591751
At refinement iteration 0 (INCLUDED_ONLY) 0/241 variables, 36/36 constraints. Problems are: Problem set: 12 solved, 166 unsolved
Reachability property qltransition_192 is true.
Reachability property qltransition_186 is true.
Reachability property qltransition_128 is true.
Reachability property qltransition_127 is true.
Reachability property qltransition_25 is true.
Reachability property qltransition_23 is true.
Reachability property qltransition_22 is true.
Reachability property qltransition_18 is true.
Reachability property qltransition_14 is true.
Reachability property qltransition_13 is true.
Reachability property qltransition_7 is true.
Reachability property qltransition_3 is true.
SDD proceeding with computation,133 properties remain. new max is 8192
SDD size :591751 after 1.20167e+06
Reachability property qltransition_190 is true.
Reachability property qltransition_26 is true.
SDD proceeding with computation,131 properties remain. new max is 8192
SDD size :1.20167e+06 after 7.80565e+07
SDD proceeding with computation,131 properties remain. new max is 16384
SDD size :7.80565e+07 after 2.53969e+08
At refinement iteration 1 (INCLUDED_ONLY) 0/241 variables, 0/36 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 2 (OVERLAPS) 20/261 variables, 10/46 constraints. Problems are: Problem set: 47 solved, 131 unsolved
SDD proceeding with computation,131 properties remain. new max is 32768
SDD size :2.53969e+08 after 8.02247e+08
At refinement iteration 3 (INCLUDED_ONLY) 0/261 variables, 0/46 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 3/264 variables, 1/47 constraints. Problems are: Problem set: 47 solved, 131 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 264/532 variables, and 47 constraints, problems are : Problem set: 47 solved, 131 unsolved in 5015 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 0/272 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 178/178 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 47 solved, 131 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/180 variables, 29/29 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/180 variables, 0/29 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 2 (OVERLAPS) 38/218 variables, 6/35 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/218 variables, 0/35 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 38/256 variables, 10/45 constraints. Problems are: Problem set: 47 solved, 131 unsolved
SDD proceeding with computation,131 properties remain. new max is 65536
At refinement iteration 5 (INCLUDED_ONLY) 0/256 variables, 0/45 constraints. Problems are: Problem set: 47 solved, 131 unsolved
SDD size :8.02247e+08 after 2.46698e+09
At refinement iteration 6 (OVERLAPS) 4/260 variables, 2/47 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/260 variables, 0/47 constraints. Problems are: Problem set: 47 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 4/264 variables, 2/49 constraints. Problems are: Problem set: 47 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 264/532 variables, and 49 constraints, problems are : Problem set: 47 solved, 131 unsolved in 5013 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 0/272 constraints, ReadFeed: 0/20 constraints, PredecessorRefiner: 0/178 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10097ms problems are : Problem set: 47 solved, 131 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 180 out of 272 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 272/272 places, 260/260 transitions.
Free-agglomeration rule (complex) applied 9 times.
Iterating global reduction 0 with 9 rules applied. Total rules applied 9 place count 272 transition count 251
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 0 with 9 rules applied. Total rules applied 18 place count 263 transition count 251
Partial Free-agglomeration rule applied 12 times.
Drop transitions (Partial Free agglomeration) removed 12 transitions
Iterating global reduction 1 with 12 rules applied. Total rules applied 30 place count 263 transition count 251
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 31 place count 262 transition count 250
Applied a total of 31 rules in 45 ms. Remains 262 /272 variables (removed 10) and now considering 250/260 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 262/272 places, 250/260 transitions.
RANDOM walk for 4000000 steps (512987 resets) in 50913 ms. (78 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3338 resets) in 402 ms. (99 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3408 resets) in 460 ms. (86 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3422 resets) in 546 ms. (73 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3456 resets) in 560 ms. (71 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3409 resets) in 425 ms. (93 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3421 resets) in 455 ms. (87 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3418 resets) in 357 ms. (111 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3336 resets) in 359 ms. (111 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3419 resets) in 367 ms. (108 steps per ms) remains 131/131 properties
SDD proceeding with computation,131 properties remain. new max is 131072
SDD size :2.46698e+09 after 7.42893e+09
BEST_FIRST walk for 40001 steps (3380 resets) in 480 ms. (83 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3362 resets) in 375 ms. (106 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3391 resets) in 434 ms. (91 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3376 resets) in 369 ms. (108 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3384 resets) in 375 ms. (106 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3495 resets) in 453 ms. (88 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3417 resets) in 365 ms. (109 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3378 resets) in 426 ms. (93 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3379 resets) in 431 ms. (92 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40003 steps (3411 resets) in 381 ms. (104 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40004 steps (3380 resets) in 484 ms. (82 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3370 resets) in 497 ms. (80 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40003 steps (3354 resets) in 431 ms. (92 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3323 resets) in 430 ms. (92 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3331 resets) in 369 ms. (108 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3385 resets) in 422 ms. (94 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3364 resets) in 436 ms. (91 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3360 resets) in 377 ms. (105 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3390 resets) in 338 ms. (118 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3389 resets) in 452 ms. (88 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3401 resets) in 383 ms. (104 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3432 resets) in 345 ms. (115 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3406 resets) in 435 ms. (91 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40003 steps (3343 resets) in 412 ms. (96 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3435 resets) in 415 ms. (96 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3398 resets) in 332 ms. (120 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3393 resets) in 339 ms. (117 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40003 steps (3385 resets) in 379 ms. (105 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3397 resets) in 369 ms. (108 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3431 resets) in 368 ms. (108 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3400 resets) in 396 ms. (100 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3407 resets) in 446 ms. (89 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3389 resets) in 366 ms. (108 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3353 resets) in 441 ms. (90 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3339 resets) in 396 ms. (100 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3401 resets) in 379 ms. (105 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40001 steps (3401 resets) in 377 ms. (105 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40000 steps (3395 resets) in 471 ms. (84 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40003 steps (3411 resets) in 398 ms. (100 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40002 steps (3431 resets) in 473 ms. (84 steps per ms) remains 131/131 properties
BEST_FIRST walk for 40004 steps (3403 resets) in 401 ms. (99 steps per ms) remains 131/131 properties
Reachability property qltransition_196 is true.
Reachability property qltransition_131 is true.
Reachability property qltransition_130 is true.
Reachability property qltransition_27 is true.
Reachability property qltransition_20 is true.
Reachability property qltransition_19 is true.
Reachability property qltransition_16 is true.
SDD proceeding with computation,124 properties remain. new max is 131072
SDD size :7.42893e+09 after 1.73298e+10
SDD proceeding with computation,124 properties remain. new max is 262144
SDD size :1.73298e+10 after 2.82283e+10
Interrupted probabilistic random walk after 3208601 steps, run timeout after 60001 ms. (steps per millisecond=53 ) properties seen :0 out of 131
Probabilistic random walk after 3208601 steps, saw 1604327 distinct states, run finished after 60013 ms. (steps per millisecond=53 ) properties seen :0
// Phase 1: matrix 250 rows 262 cols
[2025-05-30 23:28:45] [INFO ] Computed 49 invariants in 36 ms
[2025-05-30 23:28:45] [INFO ] State equation strengthened by 24 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 33/204 variables, 11/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 43/247 variables, 11/44 constraints. Problems are: Problem set: 0 solved, 124 unsolved
SDD proceeding with computation,124 properties remain. new max is 524288
SDD size :2.82283e+10 after 5.01408e+10
At refinement iteration 5 (INCLUDED_ONLY) 0/247 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 5/252 variables, 3/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/252 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (OVERLAPS) 249/501 variables, 252/299 constraints. Problems are: Problem set: 0 solved, 124 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/501 variables, 24/323 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/501 variables, 0/323 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (OVERLAPS) 10/511 variables, 9/332 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/511 variables, 2/334 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/511 variables, 0/334 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (OVERLAPS) 1/512 variables, 1/335 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/512 variables, 0/335 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 16 (OVERLAPS) 0/512 variables, 0/335 constraints. Problems are: Problem set: 0 solved, 124 unsolved
No progress, stopping.
After SMT solving in domain Real declared 512/512 variables, and 335 constraints, problems are : Problem set: 0 solved, 124 unsolved in 26165 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 262/262 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 22/22 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/22 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 33/204 variables, 11/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/204 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 43/247 variables, 11/44 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/247 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 5/252 variables, 3/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:29:16] [INFO ] Deduced a trap composed of 4 places in 95 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/252 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/252 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 9 (OVERLAPS) 249/501 variables, 252/300 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/501 variables, 24/324 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/501 variables, 120/444 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:29:35] [INFO ] Deduced a trap along path composed of 6 places in 205 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:29:36] [INFO ] Deduced a trap along path composed of 4 places in 65 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:29:39] [INFO ] Deduced a trap along path composed of 2 places in 312 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/501 variables, 3/447 constraints. Problems are: Problem set: 0 solved, 124 unsolved
SDD proceeding with computation,124 properties remain. new max is 1048576
SDD size :5.01408e+10 after 9.44182e+10
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 501/512 variables, and 447 constraints, problems are : Problem set: 0 solved, 124 unsolved in 45028 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 252/262 constraints, ReadFeed: 24/24 constraints, PredecessorRefiner: 120/124 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 71269ms problems are : Problem set: 0 solved, 124 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 171 out of 262 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 262/262 places, 250/250 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 262 transition count 249
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 261 transition count 249
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 1 with 4 rules applied. Total rules applied 6 place count 261 transition count 249
Applied a total of 6 rules in 50 ms. Remains 261 /262 variables (removed 1) and now considering 249/250 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51 ms. Remains : 261/262 places, 249/250 transitions.
RANDOM walk for 4000000 steps (513137 resets) in 50827 ms. (78 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3379 resets) in 367 ms. (108 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3470 resets) in 428 ms. (93 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3416 resets) in 371 ms. (107 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3369 resets) in 352 ms. (113 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3395 resets) in 347 ms. (114 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3323 resets) in 468 ms. (85 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3355 resets) in 359 ms. (111 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3289 resets) in 414 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3427 resets) in 410 ms. (97 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3372 resets) in 339 ms. (117 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3335 resets) in 323 ms. (123 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3361 resets) in 378 ms. (105 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3370 resets) in 449 ms. (88 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3353 resets) in 367 ms. (108 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3440 resets) in 324 ms. (123 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3395 resets) in 361 ms. (110 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3383 resets) in 355 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3440 resets) in 363 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3373 resets) in 437 ms. (91 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3454 resets) in 343 ms. (116 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3373 resets) in 361 ms. (110 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3381 resets) in 322 ms. (123 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3375 resets) in 440 ms. (90 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3414 resets) in 439 ms. (90 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3484 resets) in 396 ms. (100 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3334 resets) in 432 ms. (92 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3440 resets) in 406 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40004 steps (3402 resets) in 358 ms. (111 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3371 resets) in 442 ms. (90 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3414 resets) in 473 ms. (84 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3438 resets) in 413 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3381 resets) in 330 ms. (120 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3392 resets) in 340 ms. (117 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3351 resets) in 412 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3348 resets) in 378 ms. (105 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3351 resets) in 391 ms. (102 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3423 resets) in 330 ms. (120 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3428 resets) in 409 ms. (97 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3331 resets) in 340 ms. (117 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3376 resets) in 418 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3374 resets) in 352 ms. (113 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3361 resets) in 414 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3360 resets) in 350 ms. (113 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3401 resets) in 322 ms. (123 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3423 resets) in 372 ms. (107 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3422 resets) in 363 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3368 resets) in 453 ms. (88 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3346 resets) in 336 ms. (118 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3357 resets) in 467 ms. (85 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3418 resets) in 353 ms. (112 steps per ms) remains 124/124 properties
Interrupted probabilistic random walk after 3209861 steps, run timeout after 63001 ms. (steps per millisecond=50 ) properties seen :0 out of 124
Probabilistic random walk after 3209861 steps, saw 1604978 distinct states, run finished after 63001 ms. (steps per millisecond=50 ) properties seen :0
// Phase 1: matrix 249 rows 261 cols
[2025-05-30 23:31:21] [INFO ] Computed 49 invariants in 14 ms
[2025-05-30 23:31:21] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 20/20 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 40/211 variables, 13/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/211 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 33/244 variables, 12/45 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/244 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 7/251 variables, 2/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/251 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (OVERLAPS) 248/499 variables, 251/298 constraints. Problems are: Problem set: 0 solved, 124 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/499 variables, 26/324 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/499 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (OVERLAPS) 10/509 variables, 9/333 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/509 variables, 2/335 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/509 variables, 0/335 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (OVERLAPS) 1/510 variables, 1/336 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/510 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 16 (OVERLAPS) 0/510 variables, 0/336 constraints. Problems are: Problem set: 0 solved, 124 unsolved
No progress, stopping.
After SMT solving in domain Real declared 510/510 variables, and 336 constraints, problems are : Problem set: 0 solved, 124 unsolved in 24514 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 261/261 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 20/20 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 40/211 variables, 13/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/211 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 33/244 variables, 12/45 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/244 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 7/251 variables, 2/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/251 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (OVERLAPS) 248/499 variables, 251/298 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/499 variables, 26/324 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/499 variables, 120/444 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:32:04] [INFO ] Deduced a trap along path composed of 2 places in 37 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/499 variables, 1/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/499 variables, 0/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (OVERLAPS) 10/509 variables, 9/454 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/509 variables, 2/456 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/509 variables, 4/460 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 509/510 variables, and 460 constraints, problems are : Problem set: 0 solved, 124 unsolved in 75022 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 47/47 constraints, State Equation: 260/261 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 99584ms problems are : Problem set: 0 solved, 124 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 171 out of 261 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 261/261 places, 249/249 transitions.
Applied a total of 0 rules in 14 ms. Remains 261 /261 variables (removed 0) and now considering 249/249 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 261/261 places, 249/249 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 261/261 places, 249/249 transitions.
Applied a total of 0 rules in 7 ms. Remains 261 /261 variables (removed 0) and now considering 249/249 (removed 0) transitions.
[2025-05-30 23:33:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:01] [INFO ] Implicit Places using invariants in 110 ms returned []
[2025-05-30 23:33:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:01] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:33:02] [INFO ] Implicit Places using invariants and state equation in 940 ms returned [20, 26, 143, 213, 252, 258]
[2025-05-30 23:33:02] [INFO ] Actually due to overlaps returned [213, 143]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 1061 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 259/261 places, 249/249 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 259 transition count 248
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 258 transition count 248
Applied a total of 2 rules in 18 ms. Remains 258 /259 variables (removed 1) and now considering 248/249 (removed 1) transitions.
// Phase 1: matrix 248 rows 258 cols
[2025-05-30 23:33:02] [INFO ] Computed 47 invariants in 15 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:02] [INFO ] Implicit Places using invariants in 112 ms returned []
[2025-05-30 23:33:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:02] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:33:02] [INFO ] Implicit Places using invariants and state equation in 815 ms returned [20, 26, 249, 255]
[2025-05-30 23:33:02] [INFO ] Actually due to overlaps returned [255, 249]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 934 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 256/261 places, 248/249 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 256 transition count 247
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 255 transition count 247
Applied a total of 2 rules in 22 ms. Remains 255 /256 variables (removed 1) and now considering 247/248 (removed 1) transitions.
// Phase 1: matrix 247 rows 255 cols
[2025-05-30 23:33:03] [INFO ] Computed 45 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:03] [INFO ] Implicit Places using invariants in 122 ms returned []
[2025-05-30 23:33:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:03] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:33:03] [INFO ] Implicit Places using invariants and state equation in 718 ms returned [20, 26]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 846 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 253/261 places, 247/249 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 253 transition count 246
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 252 transition count 246
Applied a total of 2 rules in 25 ms. Remains 252 /253 variables (removed 1) and now considering 246/247 (removed 1) transitions.
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:33:03] [INFO ] Computed 43 invariants in 16 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:03] [INFO ] Implicit Places using invariants in 107 ms returned []
[2025-05-30 23:33:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:33:04] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:33:04] [INFO ] Implicit Places using invariants and state equation in 736 ms returned []
Implicit Place search using SMT with State Equation took 846 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 252/261 places, 246/249 transitions.
Finished structural reductions in REACHABILITY mode , in 4 iterations and 3760 ms. Remains : 252/261 places, 246/249 transitions.
RANDOM walk for 4000000 steps (577065 resets) in 46986 ms. (85 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40004 steps (3654 resets) in 348 ms. (114 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3655 resets) in 392 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3668 resets) in 356 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3664 resets) in 363 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3647 resets) in 354 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3591 resets) in 404 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3712 resets) in 328 ms. (121 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3647 resets) in 407 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3592 resets) in 387 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3598 resets) in 341 ms. (116 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3659 resets) in 364 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3682 resets) in 310 ms. (128 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3606 resets) in 345 ms. (115 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3713 resets) in 384 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3638 resets) in 316 ms. (126 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3610 resets) in 405 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3728 resets) in 305 ms. (130 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3647 resets) in 428 ms. (93 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3575 resets) in 426 ms. (93 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3649 resets) in 335 ms. (119 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3686 resets) in 384 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3617 resets) in 342 ms. (116 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3756 resets) in 376 ms. (106 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3705 resets) in 364 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3650 resets) in 388 ms. (102 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3659 resets) in 493 ms. (80 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3663 resets) in 401 ms. (99 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3675 resets) in 387 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3627 resets) in 339 ms. (117 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3616 resets) in 407 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3605 resets) in 392 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3663 resets) in 338 ms. (118 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3690 resets) in 393 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3648 resets) in 284 ms. (140 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3618 resets) in 384 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3669 resets) in 322 ms. (123 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3604 resets) in 403 ms. (99 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3701 resets) in 337 ms. (118 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3688 resets) in 417 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3640 resets) in 356 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3666 resets) in 387 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3610 resets) in 375 ms. (106 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3660 resets) in 438 ms. (91 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3618 resets) in 401 ms. (99 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3583 resets) in 346 ms. (115 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3586 resets) in 440 ms. (90 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3633 resets) in 368 ms. (108 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3534 resets) in 378 ms. (105 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3634 resets) in 332 ms. (120 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3675 resets) in 374 ms. (106 steps per ms) remains 124/124 properties
SDD proceeding with computation,124 properties remain. new max is 2097152
SDD size :9.44182e+10 after 1.7808e+11
Probably explored full state space saw : 681098 states, properties seen :0
Probabilistic random walk after 1362238 steps, saw 681098 distinct states, run finished after 21886 ms. (steps per millisecond=62 ) properties seen :0
Interrupted probabilistic random walk after 3081102 steps, run timeout after 57001 ms. (steps per millisecond=54 ) properties seen :0 out of 124
Exhaustive walk after 3081102 steps, saw 1540630 distinct states, run finished after 57001 ms. (steps per millisecond=54 ) properties seen :0
[2025-05-30 23:34:43] [INFO ] Invariant cache hit.
[2025-05-30 23:34:43] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 51/222 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/222 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 20/242 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/242 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 245/487 variables, 242/283 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/487 variables, 26/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/487 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 10/497 variables, 9/318 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/497 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/497 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (OVERLAPS) 1/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 124 unsolved in 21515 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 51/222 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/222 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 20/242 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/242 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 245/487 variables, 242/283 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/487 variables, 26/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/487 variables, 120/429 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:35:20] [INFO ] Deduced a trap along path composed of 4 places in 30 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/487 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/487 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (OVERLAPS) 10/497 variables, 9/439 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/497 variables, 2/441 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/497 variables, 4/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/497 variables, 0/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 15 (OVERLAPS) 1/498 variables, 1/446 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:36:21] [INFO ] Deduced a trap composed of 10 places in 64 ms of which 3 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/498 variables, 1/447 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 498/498 variables, and 447 constraints, problems are : Problem set: 0 solved, 124 unsolved in 90022 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 111558ms problems are : Problem set: 0 solved, 124 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 171 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Applied a total of 0 rules in 9 ms. Remains 252 /252 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 252/252 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Applied a total of 0 rules in 6 ms. Remains 252 /252 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-05-30 23:36:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:36:34] [INFO ] Implicit Places using invariants in 114 ms returned []
[2025-05-30 23:36:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:36:35] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:36:36] [INFO ] Implicit Places using invariants and state equation in 1284 ms returned []
Implicit Place search using SMT with State Equation took 1416 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:36:36] [INFO ] Redundant transitions in 12 ms returned []
Running 245 sub problems to find dead transitions.
[2025-05-30 23:36:36] [INFO ] Invariant cache hit.
[2025-05-30 23:36:36] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/251 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/251 variables, 41/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/251 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 3 (OVERLAPS) 246/497 variables, 251/294 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/497 variables, 26/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/497 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 6 (OVERLAPS) 1/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 245 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 245 unsolved in 30033 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 245/245 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 245 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/251 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/251 variables, 41/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/251 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 3 (OVERLAPS) 246/497 variables, 251/294 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/497 variables, 26/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
Detected timeout of ITS tools.
[2025-05-30 23:37:13] [INFO ] Flatten gal took : 28 ms
[2025-05-30 23:37:13] [INFO ] Applying decomposition
[2025-05-30 23:37:13] [INFO ] Flatten gal took : 21 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph15825726907437733034.txt' '-o' '/tmp/graph15825726907437733034.bin' '-w' '/tmp/graph15825726907437733034.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph15825726907437733034.bin' '-l' '-1' '-v' '-w' '/tmp/graph15825726907437733034.weights' '-q' '0' '-e' '0.001'
[2025-05-30 23:37:14] [INFO ] Decomposing Gal with order
[2025-05-30 23:37:14] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-05-30 23:37:14] [INFO ] Removed a total of 209 redundant transitions.
[2025-05-30 23:37:14] [INFO ] Flatten gal took : 109 ms
[2025-05-30 23:37:14] [INFO ] Fuse similar labels procedure discarded/fused a total of 6 labels/synchronizations in 21 ms.
[2025-05-30 23:37:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16005605141517239201.gal : 21 ms
[2025-05-30 23:37:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality171187552674429720.prop : 7 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16005605141517239201.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality171187552674429720.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality171187552674429720.prop.
SDD proceeding with computation,124 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,124 properties remain. new max is 8
SDD size :11 after 25
SDD proceeding with computation,124 properties remain. new max is 16
SDD size :25 after 248
SDD proceeding with computation,124 properties remain. new max is 32
SDD size :248 after 403
At refinement iteration 5 (INCLUDED_ONLY) 0/497 variables, 245/565 constraints. Problems are: Problem set: 0 solved, 245 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 497/498 variables, and 565 constraints, problems are : Problem set: 0 solved, 245 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 251/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 245/245 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60139ms problems are : Problem set: 0 solved, 245 unsolved
Search for dead transitions found 0 dead transitions in 60146ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61610 ms. Remains : 252/252 places, 246/246 transitions.
RANDOM walk for 400000 steps (57771 resets) in 9579 ms. (41 steps per ms) remains 171/171 properties
Running SMT prover for 171 properties.
[2025-05-30 23:37:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:37:39] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-05-30 23:37:39] [INFO ] [Real]Absence check using 2 positive and 41 generalized place invariants in 9 ms returned sat
[2025-05-30 23:37:40] [INFO ] After 872ms SMT Verify possible using state equation in real domain returned unsat :0 sat :171
[2025-05-30 23:37:40] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:37:41] [INFO ] After 1071ms SMT Verify possible using 26 Read/Feed constraints in real domain returned unsat :0 sat :171
TRAPS : Iteration 0
SDD proceeding with computation,124 properties remain. new max is 64
SDD size :403 after 2.02142e+06
[2025-05-30 23:37:46] [INFO ] After 6013ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:171
[2025-05-30 23:37:46] [INFO ] After 7164ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:171
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:37:49] [INFO ] [Nat]Absence check using 2 positive place invariants in 27 ms returned sat
[2025-05-30 23:37:50] [INFO ] [Nat]Absence check using 2 positive and 41 generalized place invariants in 310 ms returned sat
[2025-05-30 23:38:05] [INFO ] After 6064ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :171
[2025-05-30 23:38:09] [INFO ] After 4061ms SMT Verify possible using 26 Read/Feed constraints in natural domain returned unsat :0 sat :171
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:09] [INFO ] Deduced a trap composed of 10 places in 81 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:09] [INFO ] Deduced a trap composed of 13 places in 80 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:09] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:09] [INFO ] Deduced a trap composed of 16 places in 71 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:09] [INFO ] Deduced a trap composed of 19 places in 103 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 19 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 23 places in 61 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 24 places in 57 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 21 places in 60 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 24 places in 58 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 9 places in 61 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 4 places in 87 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:10] [INFO ] Deduced a trap composed of 5 places in 79 ms of which 6 ms to minimize.
[2025-05-30 23:38:10] [INFO ] Trap strengthening (SAT) tested/added 14/13 trap constraints in 1356 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:11] [INFO ] Deduced a trap composed of 15 places in 66 ms of which 4 ms to minimize.
[2025-05-30 23:38:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 92 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:11] [INFO ] Deduced a trap composed of 21 places in 74 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:11] [INFO ] Deduced a trap composed of 28 places in 59 ms of which 6 ms to minimize.
[2025-05-30 23:38:11] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 181 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:11] [INFO ] Deduced a trap composed of 24 places in 75 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 26 places in 64 ms of which 6 ms to minimize.
[2025-05-30 23:38:12] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 195 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 28 places in 59 ms of which 3 ms to minimize.
[2025-05-30 23:38:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 28 places in 56 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 32 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 32 places in 53 ms of which 4 ms to minimize.
[2025-05-30 23:38:12] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 230 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 30 places in 58 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:12] [INFO ] Deduced a trap composed of 36 places in 52 ms of which 4 ms to minimize.
[2025-05-30 23:38:12] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 155 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:13] [INFO ] Deduced a trap composed of 32 places in 52 ms of which 3 ms to minimize.
[2025-05-30 23:38:13] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 79 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:14] [INFO ] Deduced a trap composed of 40 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:14] [INFO ] Deduced a trap composed of 40 places in 42 ms of which 2 ms to minimize.
[2025-05-30 23:38:14] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 138 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:14] [INFO ] Deduced a trap composed of 20 places in 60 ms of which 4 ms to minimize.
[2025-05-30 23:38:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 90 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:18] [INFO ] Deduced a trap composed of 34 places in 52 ms of which 5 ms to minimize.
[2025-05-30 23:38:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 79 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:18] [INFO ] Deduced a trap composed of 36 places in 49 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:18] [INFO ] Deduced a trap composed of 38 places in 47 ms of which 4 ms to minimize.
[2025-05-30 23:38:18] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 151 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:19] [INFO ] Deduced a trap composed of 8 places in 79 ms of which 5 ms to minimize.
[2025-05-30 23:38:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 116 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:19] [INFO ] Deduced a trap composed of 9 places in 74 ms of which 6 ms to minimize.
[2025-05-30 23:38:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 107 ms
TRAPS : Iteration 2
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:23] [INFO ] Deduced a trap composed of 14 places in 71 ms of which 4 ms to minimize.
[2025-05-30 23:38:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 100 ms
TRAPS : Iteration 3
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:38:33] [INFO ] Deduced a trap composed of 35 places in 46 ms of which 2 ms to minimize.
[2025-05-30 23:38:33] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 72 ms
TRAPS : Iteration 4
[2025-05-30 23:38:40] [INFO ] After 35093ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :171
[2025-05-30 23:38:41] [INFO ] After 55277ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :171
RANDOM walk for 4000000 steps (577254 resets) in 48632 ms. (82 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3703 resets) in 394 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3633 resets) in 361 ms. (110 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3670 resets) in 404 ms. (98 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3655 resets) in 418 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3648 resets) in 333 ms. (119 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3621 resets) in 415 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3642 resets) in 374 ms. (106 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3695 resets) in 379 ms. (105 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3628 resets) in 409 ms. (97 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3672 resets) in 368 ms. (108 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3740 resets) in 411 ms. (97 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3685 resets) in 370 ms. (107 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3667 resets) in 445 ms. (89 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3681 resets) in 385 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3761 resets) in 518 ms. (77 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3724 resets) in 506 ms. (78 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3624 resets) in 469 ms. (85 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3601 resets) in 452 ms. (88 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3650 resets) in 485 ms. (82 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3657 resets) in 468 ms. (85 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3639 resets) in 384 ms. (103 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3674 resets) in 459 ms. (86 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3601 resets) in 476 ms. (83 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3688 resets) in 415 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3690 resets) in 353 ms. (113 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3638 resets) in 399 ms. (100 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3664 resets) in 354 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3678 resets) in 331 ms. (120 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3635 resets) in 393 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3663 resets) in 336 ms. (118 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3692 resets) in 415 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3621 resets) in 417 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3725 resets) in 418 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3677 resets) in 353 ms. (112 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3601 resets) in 412 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3681 resets) in 326 ms. (122 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3621 resets) in 332 ms. (120 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3629 resets) in 367 ms. (108 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3657 resets) in 361 ms. (110 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3635 resets) in 419 ms. (95 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40003 steps (3640 resets) in 394 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3678 resets) in 362 ms. (110 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3688 resets) in 373 ms. (106 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3614 resets) in 408 ms. (97 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3648 resets) in 412 ms. (96 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40000 steps (3652 resets) in 350 ms. (113 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3645 resets) in 461 ms. (86 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40002 steps (3602 resets) in 363 ms. (109 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3673 resets) in 395 ms. (101 steps per ms) remains 124/124 properties
BEST_FIRST walk for 40001 steps (3621 resets) in 443 ms. (90 steps per ms) remains 124/124 properties
Probably explored full state space saw : 681098 states, properties seen :0
Probabilistic random walk after 1362238 steps, saw 681098 distinct states, run finished after 23908 ms. (steps per millisecond=56 ) properties seen :0
SDD proceeding with computation,124 properties remain. new max is 128
SDD size :2.02142e+06 after 3.09513e+08
Interrupted probabilistic random walk after 3452464 steps, run timeout after 57001 ms. (steps per millisecond=60 ) properties seen :0 out of 124
Exhaustive walk after 3452464 steps, saw 1726306 distinct states, run finished after 57001 ms. (steps per millisecond=60 ) properties seen :0
[2025-05-30 23:40:21] [INFO ] Invariant cache hit.
[2025-05-30 23:40:21] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 51/222 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/222 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 20/242 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/242 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 245/487 variables, 242/283 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/487 variables, 26/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/487 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 10/497 variables, 9/318 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/497 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/497 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (OVERLAPS) 1/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 124 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 124 unsolved in 21256 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/171 variables, 28/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/171 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 2 (OVERLAPS) 51/222 variables, 5/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/222 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 4 (OVERLAPS) 20/242 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/242 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 6 (OVERLAPS) 245/487 variables, 242/283 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/487 variables, 26/309 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/487 variables, 120/429 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:40:58] [INFO ] Deduced a trap along path composed of 4 places in 26 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/487 variables, 1/430 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/487 variables, 0/430 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 11 (OVERLAPS) 10/497 variables, 9/439 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/497 variables, 2/441 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/497 variables, 4/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/497 variables, 0/445 constraints. Problems are: Problem set: 0 solved, 124 unsolved
At refinement iteration 15 (OVERLAPS) 1/498 variables, 1/446 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:41:52] [INFO ] Deduced a trap composed of 10 places in 56 ms of which 3 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/498 variables, 1/447 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:03] [INFO ] Deduced a trap composed of 16 places in 930 ms of which 7 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/498 variables, 1/448 constraints. Problems are: Problem set: 0 solved, 124 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:23] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 19 places in 74 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 19 places in 67 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 24 places in 54 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 24 places in 62 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:42:24] [INFO ] Deduced a trap composed of 32 places in 55 ms of which 3 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 498/498 variables, and 455 constraints, problems are : Problem set: 0 solved, 124 unsolved in 105013 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 124/124 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 126285ms problems are : Problem set: 0 solved, 124 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 171 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Applied a total of 0 rules in 17 ms. Remains 252 /252 variables (removed 0) and now considering 246/246 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 252/252 places, 246/246 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Applied a total of 0 rules in 7 ms. Remains 252 /252 variables (removed 0) and now considering 246/246 (removed 0) transitions.
[2025-05-30 23:42:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:42:28] [INFO ] Implicit Places using invariants in 92 ms returned []
[2025-05-30 23:42:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:42:28] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:42:28] [INFO ] Implicit Places using invariants and state equation in 743 ms returned []
Implicit Place search using SMT with State Equation took 842 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:42:28] [INFO ] Redundant transitions in 5 ms returned []
Running 245 sub problems to find dead transitions.
[2025-05-30 23:42:29] [INFO ] Invariant cache hit.
[2025-05-30 23:42:29] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/251 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/251 variables, 41/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/251 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 3 (OVERLAPS) 246/497 variables, 251/294 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/497 variables, 26/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/497 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 1/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 8 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 245 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 245 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 245/245 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 245 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/251 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/251 variables, 41/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/251 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 3 (OVERLAPS) 246/497 variables, 251/294 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/497 variables, 26/320 constraints. Problems are: Problem set: 0 solved, 245 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/497 variables, 245/565 constraints. Problems are: Problem set: 0 solved, 245 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 497/498 variables, and 565 constraints, problems are : Problem set: 0 solved, 245 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 251/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 245/245 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60068ms problems are : Problem set: 0 solved, 245 unsolved
Search for dead transitions found 0 dead transitions in 60072ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 60933 ms. Remains : 252/252 places, 246/246 transitions.
RANDOM walk for 400000 steps (57537 resets) in 5465 ms. (73 steps per ms) remains 171/171 properties
Running SMT prover for 171 properties.
[2025-05-30 23:43:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:43:30] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-05-30 23:43:30] [INFO ] [Real]Absence check using 2 positive and 41 generalized place invariants in 10 ms returned sat
[2025-05-30 23:43:31] [INFO ] After 732ms SMT Verify possible using state equation in real domain returned unsat :0 sat :171
[2025-05-30 23:43:31] [INFO ] State equation strengthened by 26 read => feed constraints.
[2025-05-30 23:43:32] [INFO ] After 1093ms SMT Verify possible using 26 Read/Feed constraints in real domain returned unsat :0 sat :171
TRAPS : Iteration 0
[2025-05-30 23:43:37] [INFO ] After 5591ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:171
[2025-05-30 23:43:37] [INFO ] After 6494ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:171
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:43:37] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-05-30 23:43:37] [INFO ] [Nat]Absence check using 2 positive and 41 generalized place invariants in 11 ms returned sat
[2025-05-30 23:43:37] [INFO ] After 734ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :171
[2025-05-30 23:43:39] [INFO ] After 1983ms SMT Verify possible using 26 Read/Feed constraints in natural domain returned unsat :0 sat :171
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 10 places in 78 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 13 places in 83 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 12 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 16 places in 76 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 19 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 19 places in 72 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 23 places in 73 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 24 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 21 places in 68 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:40] [INFO ] Deduced a trap composed of 24 places in 67 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 9 places in 64 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 4 places in 83 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 5 places in 84 ms of which 5 ms to minimize.
[2025-05-30 23:43:41] [INFO ] Trap strengthening (SAT) tested/added 14/13 trap constraints in 1411 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 15 places in 66 ms of which 4 ms to minimize.
[2025-05-30 23:43:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 91 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 21 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:41] [INFO ] Deduced a trap composed of 28 places in 61 ms of which 5 ms to minimize.
[2025-05-30 23:43:41] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 183 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:42] [INFO ] Deduced a trap composed of 24 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:42] [INFO ] Deduced a trap composed of 26 places in 64 ms of which 6 ms to minimize.
[2025-05-30 23:43:42] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 184 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 28 places in 55 ms of which 3 ms to minimize.
[2025-05-30 23:43:43] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 28 places in 51 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 32 places in 53 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 32 places in 51 ms of which 4 ms to minimize.
[2025-05-30 23:43:43] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 215 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 30 places in 64 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:43] [INFO ] Deduced a trap composed of 36 places in 48 ms of which 5 ms to minimize.
[2025-05-30 23:43:43] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 151 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:44] [INFO ] Deduced a trap composed of 32 places in 48 ms of which 2 ms to minimize.
[2025-05-30 23:43:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 74 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:44] [INFO ] Deduced a trap composed of 40 places in 52 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:44] [INFO ] Deduced a trap composed of 40 places in 43 ms of which 2 ms to minimize.
[2025-05-30 23:43:44] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 146 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:45] [INFO ] Deduced a trap composed of 20 places in 64 ms of which 5 ms to minimize.
[2025-05-30 23:43:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
TRAPS : Iteration 1
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:48] [INFO ] Deduced a trap composed of 34 places in 51 ms of which 5 ms to minimize.
[2025-05-30 23:43:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 78 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:49] [INFO ] Deduced a trap composed of 36 places in 45 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:49] [INFO ] Deduced a trap composed of 38 places in 47 ms of which 3 ms to minimize.
[2025-05-30 23:43:49] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 148 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:49] [INFO ] Deduced a trap composed of 8 places in 81 ms of which 5 ms to minimize.
[2025-05-30 23:43:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 108 ms
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:50] [INFO ] Deduced a trap composed of 9 places in 71 ms of which 6 ms to minimize.
[2025-05-30 23:43:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 99 ms
TRAPS : Iteration 2
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:43:54] [INFO ] Deduced a trap composed of 14 places in 67 ms of which 4 ms to minimize.
[2025-05-30 23:43:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 99 ms
TRAPS : Iteration 3
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:04] [INFO ] Deduced a trap composed of 35 places in 42 ms of which 3 ms to minimize.
[2025-05-30 23:44:04] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 72 ms
TRAPS : Iteration 4
[2025-05-30 23:44:11] [INFO ] After 33163ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :171
[2025-05-30 23:44:12] [INFO ] After 35136ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :171
RANDOM walk for 40000 steps (5798 resets) in 181 ms. (219 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3711 resets) in 196 ms. (203 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 660252 steps, run timeout after 3001 ms. (steps per millisecond=220 ) properties seen :0 out of 1
Probabilistic random walk after 660252 steps, saw 330203 distinct states, run finished after 3001 ms. (steps per millisecond=220 ) properties seen :0
[2025-05-30 23:44:15] [INFO ] Invariant cache hit.
[2025-05-30 23:44:15] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 55/56 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/56 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 56/112 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 35/147 variables, 10/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/147 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 43/190 variables, 5/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 2/493 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 5/498 variables, 4/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 1 unsolved in 359 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 55/56 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/56 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 56/112 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:15] [INFO ] Deduced a trap composed of 3 places in 51 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/112 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 35/147 variables, 10/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/147 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 43/190 variables, 5/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:15] [INFO ] Deduced a trap along path composed of 5 places in 29 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:15] [INFO ] Deduced a trap along path composed of 2 places in 19 ms of which 0 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 2/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/454 variables, 0/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 37/491 variables, 28/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/491 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 2/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/493 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/493 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 5/498 variables, 4/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 325 constraints, problems are : Problem set: 0 solved, 1 unsolved in 643 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 1016ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 95 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 25 times.
Iterating global reduction 1 with 25 rules applied. Total rules applied 27 place count 251 transition count 220
Reduce places removed 25 places and 0 transitions.
Iterating post reduction 1 with 25 rules applied. Total rules applied 52 place count 226 transition count 220
Partial Free-agglomeration rule applied 26 times.
Drop transitions (Partial Free agglomeration) removed 26 transitions
Iterating global reduction 2 with 26 rules applied. Total rules applied 78 place count 226 transition count 220
Applied a total of 78 rules in 31 ms. Remains 226 /252 variables (removed 26) and now considering 220/246 (removed 26) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32 ms. Remains : 226/252 places, 220/246 transitions.
RANDOM walk for 40000 steps (5741 resets) in 250 ms. (159 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3617 resets) in 166 ms. (239 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 695792 steps, run timeout after 3001 ms. (steps per millisecond=231 ) properties seen :0 out of 1
Probabilistic random walk after 695792 steps, saw 347970 distinct states, run finished after 3001 ms. (steps per millisecond=231 ) properties seen :0
// Phase 1: matrix 220 rows 226 cols
[2025-05-30 23:44:19] [INFO ] Computed 43 invariants in 24 ms
[2025-05-30 23:44:19] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 40/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 130/171 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/171 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 50/221 variables, 17/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:19] [INFO ] Deduced a trap composed of 4 places in 117 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:19] [INFO ] Deduced a trap composed of 7 places in 132 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 7 places in 115 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 10 places in 99 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 13 places in 81 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 15 places in 82 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 17 places in 85 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 18 places in 82 ms of which 6 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 8/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 220/441 variables, 221/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/441 variables, 38/308 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 0/308 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/446 variables, 5/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/446 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/446 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/446 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 446/446 variables, and 315 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1126 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 226/226 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 8/8 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 40/41 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 130/171 variables, 23/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/171 variables, 0/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 50/221 variables, 17/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 8/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:20] [INFO ] Deduced a trap composed of 3 places in 96 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/221 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 220/441 variables, 221/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 38/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 1/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/441 variables, 0/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/446 variables, 5/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/446 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/446 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/446 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 446/446 variables, and 317 constraints, problems are : Problem set: 0 solved, 1 unsolved in 498 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 226/226 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1658ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 89 ms.
Support contains 1 out of 226 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 226/226 places, 220/220 transitions.
Applied a total of 0 rules in 6 ms. Remains 226 /226 variables (removed 0) and now considering 220/220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 226/226 places, 220/220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 226/226 places, 220/220 transitions.
Applied a total of 0 rules in 5 ms. Remains 226 /226 variables (removed 0) and now considering 220/220 (removed 0) transitions.
[2025-05-30 23:44:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:21] [INFO ] Implicit Places using invariants in 596 ms returned [44, 49, 71, 76, 96, 102, 123, 128, 148, 153, 174, 180]
[2025-05-30 23:44:21] [INFO ] Actually due to overlaps returned [49, 44]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 602 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 224/226 places, 220/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 224 transition count 219
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 223 transition count 219
Applied a total of 2 rules in 14 ms. Remains 223 /224 variables (removed 1) and now considering 219/220 (removed 1) transitions.
// Phase 1: matrix 219 rows 223 cols
[2025-05-30 23:44:21] [INFO ] Computed 41 invariants in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:22] [INFO ] Implicit Places using invariants in 552 ms returned [68, 73, 93, 99, 120, 125, 145, 150, 171, 177]
[2025-05-30 23:44:22] [INFO ] Actually due to overlaps returned [73, 68]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 558 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 221/226 places, 219/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 221 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 220 transition count 218
Applied a total of 2 rules in 12 ms. Remains 220 /221 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 220 cols
[2025-05-30 23:44:22] [INFO ] Computed 39 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:22] [INFO ] Implicit Places using invariants in 431 ms returned [90, 96, 117, 122, 142, 147, 168, 174]
[2025-05-30 23:44:22] [INFO ] Actually due to overlaps returned [96, 90]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 437 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 218/226 places, 218/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 218 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 217 transition count 217
Applied a total of 2 rules in 12 ms. Remains 217 /218 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 217 cols
[2025-05-30 23:44:23] [INFO ] Computed 37 invariants in 15 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:23] [INFO ] Implicit Places using invariants in 420 ms returned [114, 119, 139, 144, 165, 171]
[2025-05-30 23:44:23] [INFO ] Actually due to overlaps returned [119, 114]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 422 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 215/226 places, 217/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 215 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 214 transition count 216
Applied a total of 2 rules in 14 ms. Remains 214 /215 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 214 cols
[2025-05-30 23:44:23] [INFO ] Computed 35 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:23] [INFO ] Implicit Places using invariants in 387 ms returned [136, 141, 162, 168]
[2025-05-30 23:44:23] [INFO ] Actually due to overlaps returned [141, 136]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 392 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 212/226 places, 216/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 212 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 211 transition count 215
Applied a total of 2 rules in 10 ms. Remains 211 /212 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 211 cols
[2025-05-30 23:44:23] [INFO ] Computed 33 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:24] [INFO ] Implicit Places using invariants in 345 ms returned [159, 165]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 348 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 209/226 places, 215/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 209 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 208 transition count 214
Applied a total of 2 rules in 12 ms. Remains 208 /209 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 208 cols
[2025-05-30 23:44:24] [INFO ] Computed 31 invariants in 17 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:24] [INFO ] Implicit Places using invariants in 327 ms returned []
[2025-05-30 23:44:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:24] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:44:26] [INFO ] Implicit Places using invariants and state equation in 1857 ms returned []
Implicit Place search using SMT with State Equation took 2186 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 208/226 places, 214/220 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5029 ms. Remains : 208/226 places, 214/220 transitions.
RANDOM walk for 40000 steps (5770 resets) in 183 ms. (217 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3628 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 682166 steps, run timeout after 3001 ms. (steps per millisecond=227 ) properties seen :0 out of 1
Probabilistic random walk after 682166 steps, saw 341160 distinct states, run finished after 3003 ms. (steps per millisecond=227 ) properties seen :0
[2025-05-30 23:44:29] [INFO ] Invariant cache hit.
[2025-05-30 23:44:29] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 100/101 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/101 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 48/149 variables, 5/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/149 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/203 variables, 18/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:29] [INFO ] Deduced a trap composed of 4 places in 111 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:29] [INFO ] Deduced a trap composed of 7 places in 107 ms of which 8 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/203 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 214/417 variables, 203/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/417 variables, 38/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 0/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/422 variables, 5/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/422 variables, 2/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/422 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/422 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 279 constraints, problems are : Problem set: 0 solved, 1 unsolved in 509 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 100/101 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/101 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 48/149 variables, 5/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/149 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/203 variables, 18/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/203 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 9 places in 101 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 10 places in 102 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 10 places in 106 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 13 places in 110 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 13 places in 107 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 16 places in 104 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:30] [INFO ] Deduced a trap composed of 51 places in 105 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:31] [INFO ] Deduced a trap composed of 16 places in 104 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:31] [INFO ] Deduced a trap composed of 51 places in 110 ms of which 19 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 10/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/203 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 214/417 variables, 203/244 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 38/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/417 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/417 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/422 variables, 5/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/422 variables, 2/290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/422 variables, 0/290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/422 variables, 0/290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 422/422 variables, and 290 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1511 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 12/12 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2025ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 79 ms.
Support contains 1 out of 208 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 4 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 208/208 places, 214/214 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 4 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
[2025-05-30 23:44:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:31] [INFO ] Implicit Places using invariants in 308 ms returned []
[2025-05-30 23:44:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:44:32] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:44:33] [INFO ] Implicit Places using invariants and state equation in 1763 ms returned []
Implicit Place search using SMT with State Equation took 2074 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:44:33] [INFO ] Redundant transitions in 3 ms returned []
Running 213 sub problems to find dead transitions.
[2025-05-30 23:44:33] [INFO ] Invariant cache hit.
[2025-05-30 23:44:33] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 8 (OVERLAPS) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 277 constraints, problems are : Problem set: 0 solved, 213 unsolved in 13754 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 213/490 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:44:59] [INFO ] Deduced a trap composed of 4 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:01] [INFO ] Deduced a trap composed of 78 places in 96 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:02] [INFO ] Deduced a trap composed of 75 places in 106 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:02] [INFO ] Deduced a trap composed of 75 places in 104 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:03] [INFO ] Deduced a trap composed of 3 places in 95 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:05] [INFO ] Deduced a trap composed of 9 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:06] [INFO ] Deduced a trap composed of 12 places in 106 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:06] [INFO ] Deduced a trap composed of 13 places in 113 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:07] [INFO ] Deduced a trap composed of 15 places in 111 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:07] [INFO ] Deduced a trap composed of 20 places in 103 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:07] [INFO ] Deduced a trap composed of 21 places in 103 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:08] [INFO ] Deduced a trap composed of 23 places in 104 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:08] [INFO ] Deduced a trap composed of 58 places in 157 ms of which 63 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:08] [INFO ] Deduced a trap composed of 59 places in 152 ms of which 59 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:09] [INFO ] Deduced a trap composed of 60 places in 111 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:09] [INFO ] Deduced a trap composed of 61 places in 144 ms of which 51 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:09] [INFO ] Deduced a trap composed of 63 places in 116 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:09] [INFO ] Deduced a trap composed of 63 places in 126 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:10] [INFO ] Deduced a trap composed of 63 places in 129 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:10] [INFO ] Deduced a trap composed of 63 places in 120 ms of which 29 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/422 variables, 20/510 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:15] [INFO ] Deduced a trap composed of 23 places in 50 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:17] [INFO ] Deduced a trap composed of 55 places in 103 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:17] [INFO ] Deduced a trap composed of 58 places in 106 ms of which 23 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 422/422 variables, and 513 constraints, problems are : Problem set: 0 solved, 213 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 23/23 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 43826ms problems are : Problem set: 0 solved, 213 unsolved
Search for dead transitions found 0 dead transitions in 43828ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45920 ms. Remains : 208/208 places, 214/214 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 208 transition count 196
Deduced a syphon composed of 18 places in 1 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 190 transition count 196
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 45 place count 181 transition count 187
Iterating global reduction 0 with 9 rules applied. Total rules applied 54 place count 181 transition count 187
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 0 with 2 rules applied. Total rules applied 56 place count 180 transition count 186
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 58 place count 180 transition count 184
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 60 place count 178 transition count 184
Applied a total of 60 rules in 33 ms. Remains 178 /208 variables (removed 30) and now considering 184/214 (removed 30) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 184 rows 178 cols
[2025-05-30 23:45:17] [INFO ] Computed 31 invariants in 25 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:45:17] [INFO ] [Real]Absence check using 13 positive place invariants in 7 ms returned sat
[2025-05-30 23:45:17] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 2 ms returned sat
[2025-05-30 23:45:17] [INFO ] After 65ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:45:17] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:45:17] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:45:17] [INFO ] After 19ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2025-05-30 23:45:17] [INFO ] After 144ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 207 ms.
RANDOM walk for 40000 steps (5753 resets) in 171 ms. (232 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3733 resets) in 128 ms. (310 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 664766 steps, run timeout after 3001 ms. (steps per millisecond=221 ) properties seen :0 out of 1
Probabilistic random walk after 664766 steps, saw 332455 distinct states, run finished after 3001 ms. (steps per millisecond=221 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:45:20] [INFO ] Computed 43 invariants in 15 ms
[2025-05-30 23:45:20] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 55/56 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/56 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 56/112 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 35/147 variables, 10/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/147 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 43/190 variables, 5/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 2/493 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 5/498 variables, 4/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 1 unsolved in 577 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 55/56 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/56 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 56/112 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 35/147 variables, 10/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/147 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 43/190 variables, 5/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:21] [INFO ] Deduced a trap along path composed of 2 places in 22 ms of which 1 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 1/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 2/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/493 variables, 0/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 5/498 variables, 4/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 1/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:21] [INFO ] Deduced a trap composed of 8 places in 91 ms of which 6 ms to minimize.
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 324 constraints, problems are : Problem set: 0 solved, 1 unsolved in 514 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 1110ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 105 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 24 times.
Iterating global reduction 1 with 24 rules applied. Total rules applied 26 place count 251 transition count 221
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 1 with 24 rules applied. Total rules applied 50 place count 227 transition count 221
Partial Free-agglomeration rule applied 26 times.
Drop transitions (Partial Free agglomeration) removed 26 transitions
Iterating global reduction 2 with 26 rules applied. Total rules applied 76 place count 227 transition count 221
Applied a total of 76 rules in 19 ms. Remains 227 /252 variables (removed 25) and now considering 221/246 (removed 25) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 227/252 places, 221/246 transitions.
RANDOM walk for 40000 steps (5774 resets) in 189 ms. (210 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3732 resets) in 306 ms. (130 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 690500 steps, run timeout after 3001 ms. (steps per millisecond=230 ) properties seen :0 out of 1
Probabilistic random walk after 690500 steps, saw 345322 distinct states, run finished after 3003 ms. (steps per millisecond=229 ) properties seen :0
// Phase 1: matrix 221 rows 227 cols
[2025-05-30 23:45:25] [INFO ] Computed 43 invariants in 7 ms
[2025-05-30 23:45:25] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 123/124 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:25] [INFO ] Deduced a trap composed of 3 places in 66 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 4/128 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 92/220 variables, 33/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:25] [INFO ] Deduced a trap composed of 4 places in 96 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:25] [INFO ] Deduced a trap composed of 7 places in 97 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:25] [INFO ] Deduced a trap composed of 7 places in 93 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/220 variables, 3/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/220 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/222 variables, 1/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/222 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 221/443 variables, 222/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/443 variables, 38/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/443 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/448 variables, 5/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/448 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/448 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/448 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 448/448 variables, and 312 constraints, problems are : Problem set: 0 solved, 1 unsolved in 604 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 123/124 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 4/128 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/128 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 92/220 variables, 33/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/220 variables, 3/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/220 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/222 variables, 1/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/222 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 221/443 variables, 222/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/443 variables, 38/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/443 variables, 1/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/443 variables, 0/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 5/448 variables, 5/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/448 variables, 2/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/448 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/448 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 448/448 variables, and 313 constraints, problems are : Problem set: 0 solved, 1 unsolved in 314 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 937ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 107 ms.
Support contains 1 out of 227 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 4 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 227/227 places, 221/221 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 4 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
[2025-05-30 23:45:26] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:26] [INFO ] Implicit Places using invariants in 413 ms returned [43, 71, 76, 97, 103, 124, 129, 149, 154, 175, 181]
[2025-05-30 23:45:26] [INFO ] Actually due to overlaps returned [76, 43, 71]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 421 ms to find 3 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 224/227 places, 221/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 224 transition count 220
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 223 transition count 220
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 223 transition count 220
Applied a total of 3 rules in 13 ms. Remains 223 /224 variables (removed 1) and now considering 220/221 (removed 1) transitions.
// Phase 1: matrix 220 rows 223 cols
[2025-05-30 23:45:26] [INFO ] Computed 40 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:27] [INFO ] Implicit Places using invariants in 376 ms returned [93, 99, 120, 125, 145, 150, 171, 177]
[2025-05-30 23:45:27] [INFO ] Actually due to overlaps returned [99, 93]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 378 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 221/227 places, 220/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 221 transition count 219
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 220 transition count 219
Applied a total of 2 rules in 11 ms. Remains 220 /221 variables (removed 1) and now considering 219/220 (removed 1) transitions.
// Phase 1: matrix 219 rows 220 cols
[2025-05-30 23:45:27] [INFO ] Computed 38 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:27] [INFO ] Implicit Places using invariants in 326 ms returned [117, 122, 142, 147, 168, 174]
[2025-05-30 23:45:27] [INFO ] Actually due to overlaps returned [122, 117]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 329 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 218/227 places, 219/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 218 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 217 transition count 218
Applied a total of 2 rules in 10 ms. Remains 217 /218 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 217 cols
[2025-05-30 23:45:27] [INFO ] Computed 36 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:27] [INFO ] Implicit Places using invariants in 307 ms returned [139, 144, 165, 171]
[2025-05-30 23:45:27] [INFO ] Actually due to overlaps returned [144, 139]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 309 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 215/227 places, 218/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 215 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 214 transition count 217
Applied a total of 2 rules in 10 ms. Remains 214 /215 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 214 cols
[2025-05-30 23:45:27] [INFO ] Computed 34 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:28] [INFO ] Implicit Places using invariants in 347 ms returned [162, 168]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 349 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 212/227 places, 217/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 212 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 211 transition count 216
Applied a total of 2 rules in 10 ms. Remains 211 /212 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 211 cols
[2025-05-30 23:45:28] [INFO ] Computed 32 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:28] [INFO ] Implicit Places using invariants in 259 ms returned []
[2025-05-30 23:45:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:28] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:45:30] [INFO ] Implicit Places using invariants and state equation in 2324 ms returned []
Implicit Place search using SMT with State Equation took 2586 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 211/227 places, 216/221 transitions.
Finished structural reductions in REACHABILITY mode , in 6 iterations and 4433 ms. Remains : 211/227 places, 216/221 transitions.
RANDOM walk for 40000 steps (5785 resets) in 141 ms. (281 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (3642 resets) in 93 ms. (425 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 693896 steps, run timeout after 3001 ms. (steps per millisecond=231 ) properties seen :0 out of 1
Probabilistic random walk after 693896 steps, saw 347015 distinct states, run finished after 3001 ms. (steps per millisecond=231 ) properties seen :0
[2025-05-30 23:45:33] [INFO ] Invariant cache hit.
[2025-05-30 23:45:33] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 129/130 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:33] [INFO ] Deduced a trap composed of 3 places in 70 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/130 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/130 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 22/152 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/206 variables, 18/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 4 places in 89 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 6 places in 102 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 7 places in 95 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 7 places in 90 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 10 places in 88 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 10 places in 85 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 13 places in 82 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 13 places in 68 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 15 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 16 places in 70 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 17 places in 62 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:34] [INFO ] Deduced a trap composed of 20 places in 59 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 20 places in 58 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 23 places in 53 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 23 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 25 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 26 places in 52 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 26 places in 43 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 29 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 29 places in 38 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/206 variables, 20/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:45:35] [INFO ] Deduced a trap composed of 30 places in 32 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/206 variables, 1/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/206 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 216/422 variables, 206/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/422 variables, 38/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/422 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/427 variables, 5/301 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/427 variables, 2/303 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/427 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/427 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 427/427 variables, and 303 constraints, problems are : Problem set: 0 solved, 1 unsolved in 2015 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 22/22 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 129/130 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/130 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/130 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 22/152 variables, 6/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/152 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/206 variables, 18/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/206 variables, 21/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/206 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 216/422 variables, 206/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/422 variables, 38/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/422 variables, 1/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/422 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/427 variables, 5/302 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/427 variables, 2/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/427 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/427 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 427/427 variables, and 304 constraints, problems are : Problem set: 0 solved, 1 unsolved in 370 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 22/22 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2394ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 91 ms.
Support contains 1 out of 211 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 211/211 places, 216/216 transitions.
Applied a total of 0 rules in 3 ms. Remains 211 /211 variables (removed 0) and now considering 216/216 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 211/211 places, 216/216 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 211/211 places, 216/216 transitions.
Applied a total of 0 rules in 4 ms. Remains 211 /211 variables (removed 0) and now considering 216/216 (removed 0) transitions.
[2025-05-30 23:45:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:36] [INFO ] Implicit Places using invariants in 253 ms returned []
[2025-05-30 23:45:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:45:36] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:45:38] [INFO ] Implicit Places using invariants and state equation in 2322 ms returned []
Implicit Place search using SMT with State Equation took 2581 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:45:38] [INFO ] Redundant transitions in 2 ms returned []
Running 215 sub problems to find dead transitions.
[2025-05-30 23:45:38] [INFO ] Invariant cache hit.
[2025-05-30 23:45:38] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/210 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/210 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/210 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/211 variables, 12/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/211 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (OVERLAPS) 216/427 variables, 211/243 constraints. Problems are: Problem set: 0 solved, 215 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/427 variables, 38/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/427 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 8 (OVERLAPS) 0/427 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
No progress, stopping.
After SMT solving in domain Real declared 427/427 variables, and 281 constraints, problems are : Problem set: 0 solved, 215 unsolved in 14303 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 215/215 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/210 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/210 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/210 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/211 variables, 12/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/211 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (OVERLAPS) 216/427 variables, 211/243 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/427 variables, 38/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/427 variables, 215/496 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:06] [INFO ] Deduced a trap composed of 8 places in 163 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:08] [INFO ] Deduced a trap composed of 10 places in 1276 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:08] [INFO ] Deduced a trap composed of 14 places in 101 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:08] [INFO ] Deduced a trap composed of 19 places in 94 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:08] [INFO ] Deduced a trap composed of 19 places in 103 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:09] [INFO ] Deduced a trap composed of 23 places in 106 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:09] [INFO ] Deduced a trap composed of 32 places in 106 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:09] [INFO ] Deduced a trap composed of 57 places in 101 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:09] [INFO ] Deduced a trap composed of 57 places in 104 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 50 places in 100 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 51 places in 100 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 53 places in 100 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 54 places in 103 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 54 places in 105 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 54 places in 93 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:10] [INFO ] Deduced a trap composed of 57 places in 97 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:11] [INFO ] Deduced a trap composed of 64 places in 97 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:12] [INFO ] Deduced a trap composed of 49 places in 105 ms of which 20 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/427 variables, 18/514 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 427/427 variables, and 514 constraints, problems are : Problem set: 0 solved, 215 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 215/215 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 44347ms problems are : Problem set: 0 solved, 215 unsolved
Search for dead transitions found 0 dead transitions in 44349ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46947 ms. Remains : 211/211 places, 216/216 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 211 transition count 198
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 193 transition count 198
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 44 place count 185 transition count 190
Iterating global reduction 0 with 8 rules applied. Total rules applied 52 place count 185 transition count 190
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 0 with 2 rules applied. Total rules applied 54 place count 184 transition count 189
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 184 transition count 187
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 182 transition count 187
Applied a total of 58 rules in 14 ms. Remains 182 /211 variables (removed 29) and now considering 187/216 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 187 rows 182 cols
[2025-05-30 23:46:23] [INFO ] Computed 32 invariants in 10 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:46:23] [INFO ] [Real]Absence check using 7 positive place invariants in 4 ms returned sat
[2025-05-30 23:46:23] [INFO ] [Real]Absence check using 7 positive and 25 generalized place invariants in 6 ms returned sat
[2025-05-30 23:46:23] [INFO ] After 94ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:46:23] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:46:23] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:23] [INFO ] Deduced a trap composed of 16 places in 61 ms of which 5 ms to minimize.
TRAPS : Iteration 1
[2025-05-30 23:46:23] [INFO ] After 88ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:46:23] [INFO ] After 234ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:46:23] [INFO ] [Nat]Absence check using 7 positive place invariants in 4 ms returned sat
[2025-05-30 23:46:23] [INFO ] [Nat]Absence check using 7 positive and 25 generalized place invariants in 6 ms returned sat
[2025-05-30 23:46:23] [INFO ] After 74ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:46:23] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:23] [INFO ] Deduced a trap composed of 5 places in 78 ms of which 4 ms to minimize.
[2025-05-30 23:46:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 93 ms
TRAPS : Iteration 1
[2025-05-30 23:46:23] [INFO ] After 119ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:46:23] [INFO ] After 257ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 520 ms.
RANDOM walk for 40000 steps (5726 resets) in 155 ms. (256 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3641 resets) in 84 ms. (470 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 660727 steps, run timeout after 3001 ms. (steps per millisecond=220 ) properties seen :0 out of 1
Probabilistic random walk after 660727 steps, saw 330436 distinct states, run finished after 3001 ms. (steps per millisecond=220 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:46:26] [INFO ] Computed 43 invariants in 14 ms
[2025-05-30 23:46:26] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 84/92 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/92 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 55/147 variables, 18/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:26] [INFO ] Deduced a trap composed of 3 places in 62 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/147 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/147 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 43/190 variables, 5/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 391 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 7/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 84/92 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/92 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 55/147 variables, 18/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/147 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/147 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 43/190 variables, 5/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:27] [INFO ] Deduced a trap along path composed of 2 places in 25 ms of which 1 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/454 variables, 1/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/454 variables, 0/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 37/491 variables, 28/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/491 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 2/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/493 variables, 2/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/493 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 5/498 variables, 4/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 324 constraints, problems are : Problem set: 0 solved, 1 unsolved in 455 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 867ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 67 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 26 times.
Iterating global reduction 1 with 26 rules applied. Total rules applied 28 place count 251 transition count 219
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 54 place count 225 transition count 219
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 79 place count 225 transition count 219
Applied a total of 79 rules in 13 ms. Remains 225 /252 variables (removed 27) and now considering 219/246 (removed 27) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 225/252 places, 219/246 transitions.
RANDOM walk for 40000 steps (5742 resets) in 144 ms. (275 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3671 resets) in 107 ms. (370 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 694494 steps, run timeout after 3001 ms. (steps per millisecond=231 ) properties seen :0 out of 1
Probabilistic random walk after 694494 steps, saw 347323 distinct states, run finished after 3001 ms. (steps per millisecond=231 ) properties seen :0
// Phase 1: matrix 219 rows 225 cols
[2025-05-30 23:46:30] [INFO ] Computed 43 invariants in 16 ms
[2025-05-30 23:46:30] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 17/18 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/18 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 117/135 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:30] [INFO ] Deduced a trap composed of 10 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:30] [INFO ] Deduced a trap composed of 13 places in 60 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:31] [INFO ] Deduced a trap composed of 14 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:31] [INFO ] Deduced a trap composed of 17 places in 42 ms of which 4 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/135 variables, 4/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/135 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 83/218 variables, 25/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:31] [INFO ] Deduced a trap composed of 4 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:31] [INFO ] Deduced a trap composed of 7 places in 109 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/218 variables, 2/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 2/220 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/220 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 219/439 variables, 220/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/439 variables, 38/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/439 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/444 variables, 5/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/444 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/444 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/444 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 444/444 variables, and 312 constraints, problems are : Problem set: 0 solved, 1 unsolved in 674 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 17/18 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/18 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 117/135 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/135 variables, 4/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/135 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 83/218 variables, 25/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/218 variables, 2/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:31] [INFO ] Deduced a trap composed of 6 places in 94 ms of which 6 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 2/220 variables, 1/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/220 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 219/439 variables, 220/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/439 variables, 38/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/439 variables, 1/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/439 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 5/444 variables, 5/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/444 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/444 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/444 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 444/444 variables, and 314 constraints, problems are : Problem set: 0 solved, 1 unsolved in 378 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1076ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 74 ms.
Support contains 1 out of 225 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 3 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 225/225 places, 219/219 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 3 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
[2025-05-30 23:46:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:32] [INFO ] Implicit Places using invariants in 479 ms returned [43, 70, 75, 95, 101, 122, 127, 147, 152, 173, 179]
[2025-05-30 23:46:32] [INFO ] Actually due to overlaps returned [75, 43, 70]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 483 ms to find 3 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 222/225 places, 219/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 218
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 221 transition count 218
Applied a total of 3 rules in 12 ms. Remains 221 /222 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 221 cols
[2025-05-30 23:46:32] [INFO ] Computed 40 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:32] [INFO ] Implicit Places using invariants in 431 ms returned [91, 97, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:46:32] [INFO ] Actually due to overlaps returned [97, 91]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 434 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 219/225 places, 218/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 217
Applied a total of 2 rules in 11 ms. Remains 218 /219 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 218 cols
[2025-05-30 23:46:32] [INFO ] Computed 38 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:33] [INFO ] Implicit Places using invariants in 404 ms returned [115, 120, 140, 145, 166, 172]
[2025-05-30 23:46:33] [INFO ] Actually due to overlaps returned [120, 115]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 408 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 216/225 places, 217/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 216
Applied a total of 2 rules in 10 ms. Remains 215 /216 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 215 cols
[2025-05-30 23:46:33] [INFO ] Computed 36 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:33] [INFO ] Implicit Places using invariants in 323 ms returned [137, 142, 163, 169]
[2025-05-30 23:46:33] [INFO ] Actually due to overlaps returned [142, 137]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 331 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 213/225 places, 216/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 215
Applied a total of 2 rules in 7 ms. Remains 212 /213 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 212 cols
[2025-05-30 23:46:33] [INFO ] Computed 34 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:33] [INFO ] Implicit Places using invariants in 329 ms returned [160, 166]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 330 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 210/225 places, 215/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 210 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 209 transition count 214
Applied a total of 2 rules in 10 ms. Remains 209 /210 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 209 cols
[2025-05-30 23:46:34] [INFO ] Computed 32 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:34] [INFO ] Implicit Places using invariants in 306 ms returned []
[2025-05-30 23:46:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:34] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:46:36] [INFO ] Implicit Places using invariants and state equation in 1952 ms returned []
Implicit Place search using SMT with State Equation took 2260 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 209/225 places, 214/219 transitions.
Finished structural reductions in REACHABILITY mode , in 6 iterations and 4300 ms. Remains : 209/225 places, 214/219 transitions.
RANDOM walk for 40000 steps (5712 resets) in 136 ms. (291 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (3562 resets) in 91 ms. (434 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 680952 steps, run timeout after 3001 ms. (steps per millisecond=226 ) properties seen :0 out of 1
Probabilistic random walk after 680952 steps, saw 340552 distinct states, run finished after 3001 ms. (steps per millisecond=226 ) properties seen :0
[2025-05-30 23:46:39] [INFO ] Invariant cache hit.
[2025-05-30 23:46:39] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 82/83 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/83 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 67/150 variables, 11/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/150 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/204 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:39] [INFO ] Deduced a trap composed of 4 places in 102 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:39] [INFO ] Deduced a trap composed of 7 places in 88 ms of which 6 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/204 variables, 2/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/204 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 214/418 variables, 204/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/418 variables, 38/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/418 variables, 0/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/423 variables, 5/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/423 variables, 2/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/423 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/423 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 423/423 variables, and 281 constraints, problems are : Problem set: 0 solved, 1 unsolved in 471 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 209/209 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 82/83 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/83 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 67/150 variables, 11/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/150 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/204 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/204 variables, 2/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:39] [INFO ] Deduced a trap composed of 6 places in 97 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 7 places in 92 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 9 places in 93 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 10 places in 95 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 12 places in 94 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 13 places in 95 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 14 places in 93 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 16 places in 94 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:40] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 18 places in 97 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 18 places in 93 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 19 places in 94 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 19 places in 109 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 53 places in 110 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 19 places in 106 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 52 places in 106 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 52 places in 103 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 55 places in 108 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:41] [INFO ] Deduced a trap composed of 15 places in 96 ms of which 11 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/204 variables, 20/52 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:42] [INFO ] Deduced a trap composed of 56 places in 113 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:42] [INFO ] Deduced a trap composed of 10 places in 97 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:42] [INFO ] Deduced a trap composed of 54 places in 106 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:46:42] [INFO ] Deduced a trap composed of 54 places in 110 ms of which 18 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/204 variables, 4/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/204 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 214/418 variables, 204/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/418 variables, 38/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/418 variables, 1/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/418 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/423 variables, 5/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/423 variables, 2/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/423 variables, 0/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/423 variables, 0/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 423/423 variables, and 306 constraints, problems are : Problem set: 0 solved, 1 unsolved in 2928 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 209/209 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 26/26 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3403ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 81 ms.
Support contains 1 out of 209 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 209/209 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 209 /209 variables (removed 0) and now considering 214/214 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 209/209 places, 214/214 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 209/209 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 209 /209 variables (removed 0) and now considering 214/214 (removed 0) transitions.
[2025-05-30 23:46:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:43] [INFO ] Implicit Places using invariants in 291 ms returned []
[2025-05-30 23:46:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:46:43] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:46:45] [INFO ] Implicit Places using invariants and state equation in 1944 ms returned []
Implicit Place search using SMT with State Equation took 2237 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:46:45] [INFO ] Redundant transitions in 1 ms returned []
Running 213 sub problems to find dead transitions.
[2025-05-30 23:46:45] [INFO ] Invariant cache hit.
[2025-05-30 23:46:45] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/208 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/208 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/208 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/209 variables, 12/32 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/209 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/423 variables, 209/241 constraints. Problems are: Problem set: 0 solved, 213 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/423 variables, 38/279 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/423 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 8 (OVERLAPS) 0/423 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 213 unsolved
No progress, stopping.
After SMT solving in domain Real declared 423/423 variables, and 279 constraints, problems are : Problem set: 0 solved, 213 unsolved in 14076 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 209/209 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/208 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/208 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/208 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/209 variables, 12/32 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/209 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/423 variables, 209/241 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/423 variables, 38/279 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/423 variables, 213/492 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:10] [INFO ] Deduced a trap composed of 29 places in 35 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:10] [INFO ] Deduced a trap composed of 8 places in 91 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:11] [INFO ] Deduced a trap composed of 4 places in 68 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:14] [INFO ] Deduced a trap composed of 3 places in 84 ms of which 4 ms to minimize.
Detected timeout of ITS tools.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:16] [INFO ] Deduced a trap composed of 9 places in 113 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:17] [INFO ] Deduced a trap composed of 12 places in 71 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:17] [INFO ] Deduced a trap composed of 15 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:17] [INFO ] Deduced a trap composed of 19 places in 87 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:18] [INFO ] Deduced a trap composed of 13 places in 81 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:18] [INFO ] Deduced a trap composed of 18 places in 70 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:18] [INFO ] Deduced a trap composed of 21 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:18] [INFO ] Deduced a trap composed of 22 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:18] [INFO ] Deduced a trap composed of 25 places in 67 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:19] [INFO ] Deduced a trap composed of 28 places in 49 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:19] [INFO ] Deduced a trap composed of 31 places in 42 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:19] [INFO ] Deduced a trap composed of 32 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:20] [INFO ] Deduced a trap composed of 39 places in 103 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:20] [INFO ] Deduced a trap composed of 40 places in 109 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:22] [INFO ] Deduced a trap composed of 28 places in 51 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/423 variables, 19/511 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 423/423 variables, and 511 constraints, problems are : Problem set: 0 solved, 213 unsolved in 30012 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 209/209 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 19/19 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 44136ms problems are : Problem set: 0 solved, 213 unsolved
Search for dead transitions found 0 dead transitions in 44137ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46385 ms. Remains : 209/209 places, 214/214 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 209 transition count 196
Deduced a syphon composed of 18 places in 1 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 191 transition count 196
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 44 place count 183 transition count 188
Iterating global reduction 0 with 8 rules applied. Total rules applied 52 place count 183 transition count 188
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 0 with 2 rules applied. Total rules applied 54 place count 182 transition count 187
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 182 transition count 185
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 180 transition count 185
Applied a total of 58 rules in 10 ms. Remains 180 /209 variables (removed 29) and now considering 185/214 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 185 rows 180 cols
[2025-05-30 23:47:29] [INFO ] Computed 32 invariants in 15 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:47:29] [INFO ] [Real]Absence check using 14 positive place invariants in 9 ms returned sat
[2025-05-30 23:47:29] [INFO ] [Real]Absence check using 14 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:47:29] [INFO ] After 86ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:47:29] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:47:29] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:47:29] [INFO ] After 20ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2025-05-30 23:47:29] [INFO ] After 170ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 200 ms.
RANDOM walk for 40000 steps (5796 resets) in 124 ms. (320 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3660 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 665393 steps, run timeout after 3001 ms. (steps per millisecond=221 ) properties seen :0 out of 1
Probabilistic random walk after 665393 steps, saw 332770 distinct states, run finished after 3001 ms. (steps per millisecond=221 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:47:32] [INFO ] Computed 43 invariants in 8 ms
[2025-05-30 23:47:32] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 54/55 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/55 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 57/112 variables, 13/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:32] [INFO ] Deduced a trap composed of 3 places in 68 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/112 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 35/147 variables, 10/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/147 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 43/190 variables, 5/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 432 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 54/55 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/55 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 57/112 variables, 13/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/112 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/112 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 35/147 variables, 10/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/147 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 43/190 variables, 5/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:33] [INFO ] Deduced a trap along path composed of 5 places in 29 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:33] [INFO ] Deduced a trap along path composed of 2 places in 24 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:33] [INFO ] Deduced a trap along path composed of 2 places in 19 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:33] [INFO ] Deduced a trap along path composed of 2 places in 22 ms of which 0 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/454 variables, 4/287 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/454 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 37/491 variables, 28/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 1/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:33] [INFO ] Deduced a trap along path composed of 8 places in 29 ms of which 0 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/491 variables, 1/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/491 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 2/493 variables, 2/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/493 variables, 2/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/493 variables, 0/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 5/498 variables, 4/327 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 1/328 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/498 variables, 0/328 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 0/498 variables, 0/328 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 328 constraints, problems are : Problem set: 0 solved, 1 unsolved in 958 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 1425ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 213 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 24 times.
Iterating global reduction 1 with 24 rules applied. Total rules applied 26 place count 251 transition count 221
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 1 with 24 rules applied. Total rules applied 50 place count 227 transition count 221
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 75 place count 227 transition count 221
Applied a total of 75 rules in 22 ms. Remains 227 /252 variables (removed 25) and now considering 221/246 (removed 25) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22 ms. Remains : 227/252 places, 221/246 transitions.
RANDOM walk for 40000 steps (5730 resets) in 128 ms. (310 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3647 resets) in 93 ms. (425 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 687424 steps, run timeout after 3001 ms. (steps per millisecond=229 ) properties seen :0 out of 1
Probabilistic random walk after 687424 steps, saw 343783 distinct states, run finished after 3004 ms. (steps per millisecond=228 ) properties seen :0
// Phase 1: matrix 221 rows 227 cols
[2025-05-30 23:47:37] [INFO ] Computed 43 invariants in 13 ms
[2025-05-30 23:47:37] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 82/83 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/83 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 114/197 variables, 22/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:37] [INFO ] Deduced a trap composed of 4 places in 105 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:37] [INFO ] Deduced a trap composed of 6 places in 99 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:37] [INFO ] Deduced a trap composed of 7 places in 86 ms of which 6 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/197 variables, 3/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/197 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/222 variables, 11/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/222 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 221/443 variables, 222/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/443 variables, 38/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/443 variables, 0/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/448 variables, 5/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/448 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/448 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/448 variables, 0/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 448/448 variables, and 311 constraints, problems are : Problem set: 0 solved, 1 unsolved in 590 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 82/83 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/83 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 114/197 variables, 22/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/197 variables, 3/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:37] [INFO ] Deduced a trap composed of 3 places in 99 ms of which 4 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/197 variables, 1/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/197 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 25/222 variables, 11/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:38] [INFO ] Deduced a trap composed of 10 places in 105 ms of which 8 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/222 variables, 1/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/222 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 221/443 variables, 222/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/443 variables, 38/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/443 variables, 1/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/443 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/448 variables, 5/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/448 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/448 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/448 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 448/448 variables, and 314 constraints, problems are : Problem set: 0 solved, 1 unsolved in 529 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1143ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 66 ms.
Support contains 1 out of 227 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 4 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 227/227 places, 221/221 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 3 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
[2025-05-30 23:47:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:38] [INFO ] Implicit Places using invariants in 491 ms returned [72, 77, 97, 103, 124, 129, 149, 154, 175, 181]
[2025-05-30 23:47:38] [INFO ] Actually due to overlaps returned [77, 72]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 495 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 225/227 places, 221/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 225 transition count 220
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 224 transition count 220
Applied a total of 2 rules in 9 ms. Remains 224 /225 variables (removed 1) and now considering 220/221 (removed 1) transitions.
// Phase 1: matrix 220 rows 224 cols
[2025-05-30 23:47:38] [INFO ] Computed 41 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:39] [INFO ] Implicit Places using invariants in 420 ms returned [94, 100, 121, 126, 146, 151, 172, 178]
[2025-05-30 23:47:39] [INFO ] Actually due to overlaps returned [100, 94]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 421 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 222/227 places, 220/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 219
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 219
Applied a total of 2 rules in 8 ms. Remains 221 /222 variables (removed 1) and now considering 219/220 (removed 1) transitions.
// Phase 1: matrix 219 rows 221 cols
[2025-05-30 23:47:39] [INFO ] Computed 39 invariants in 8 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:39] [INFO ] Implicit Places using invariants in 419 ms returned [118, 123, 143, 148, 169, 175]
[2025-05-30 23:47:39] [INFO ] Actually due to overlaps returned [123, 118]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 421 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 219/227 places, 219/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 218
Applied a total of 2 rules in 9 ms. Remains 218 /219 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 218 cols
[2025-05-30 23:47:39] [INFO ] Computed 37 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:40] [INFO ] Implicit Places using invariants in 349 ms returned [140, 145, 166, 172]
[2025-05-30 23:47:40] [INFO ] Actually due to overlaps returned [145, 140]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 350 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 216/227 places, 218/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 217
Applied a total of 2 rules in 11 ms. Remains 215 /216 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 215 cols
[2025-05-30 23:47:40] [INFO ] Computed 35 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:40] [INFO ] Implicit Places using invariants in 337 ms returned [163, 169]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 339 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 213/227 places, 217/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 216
Applied a total of 2 rules in 8 ms. Remains 212 /213 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 212 cols
[2025-05-30 23:47:40] [INFO ] Computed 33 invariants in 17 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:40] [INFO ] Implicit Places using invariants in 334 ms returned []
[2025-05-30 23:47:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:40] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:47:42] [INFO ] Implicit Places using invariants and state equation in 1961 ms returned []
Implicit Place search using SMT with State Equation took 2297 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 212/227 places, 216/221 transitions.
Finished structural reductions in REACHABILITY mode , in 6 iterations and 4371 ms. Remains : 212/227 places, 216/221 transitions.
RANDOM walk for 40000 steps (5766 resets) in 147 ms. (270 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3681 resets) in 71 ms. (555 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 647238 steps, run timeout after 3001 ms. (steps per millisecond=215 ) properties seen :0 out of 1
Probabilistic random walk after 647238 steps, saw 323694 distinct states, run finished after 3001 ms. (steps per millisecond=215 ) properties seen :0
[2025-05-30 23:47:45] [INFO ] Invariant cache hit.
[2025-05-30 23:47:45] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 112/113 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/113 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 16/129 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 78/207 variables, 29/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 4 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 6 places in 111 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 9 places in 116 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 9 places in 94 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 10 places in 96 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 10 places in 94 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 13 places in 95 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:47:46] [INFO ] Deduced a trap composed of 13 places in 103 ms of which 7 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/207 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/207 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 216/423 variables, 207/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/423 variables, 38/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/423 variables, 0/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/428 variables, 5/290 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/428 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/428 variables, 0/292 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/428 variables, 0/292 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 428/428 variables, and 292 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1269 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 212/212 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 112/113 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/113 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 16/129 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 78/207 variables, 29/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/207 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/207 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 216/423 variables, 207/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/423 variables, 38/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/423 variables, 1/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/423 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 5/428 variables, 5/291 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/428 variables, 2/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/428 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/428 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 428/428 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 313 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 212/212 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1589ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 72 ms.
Support contains 1 out of 212 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 212/212 places, 216/216 transitions.
Applied a total of 0 rules in 3 ms. Remains 212 /212 variables (removed 0) and now considering 216/216 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 212/212 places, 216/216 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 212/212 places, 216/216 transitions.
Applied a total of 0 rules in 3 ms. Remains 212 /212 variables (removed 0) and now considering 216/216 (removed 0) transitions.
[2025-05-30 23:47:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:47] [INFO ] Implicit Places using invariants in 308 ms returned []
[2025-05-30 23:47:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:47:48] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:47:49] [INFO ] Implicit Places using invariants and state equation in 1922 ms returned []
Implicit Place search using SMT with State Equation took 2231 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:47:49] [INFO ] Redundant transitions in 1 ms returned []
Running 215 sub problems to find dead transitions.
[2025-05-30 23:47:49] [INFO ] Invariant cache hit.
[2025-05-30 23:47:49] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/211 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/211 variables, 29/31 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/211 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/212 variables, 2/33 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/212 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (OVERLAPS) 216/428 variables, 212/245 constraints. Problems are: Problem set: 0 solved, 215 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/428 variables, 38/283 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/428 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 8 (OVERLAPS) 0/428 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 215 unsolved
No progress, stopping.
After SMT solving in domain Real declared 428/428 variables, and 283 constraints, problems are : Problem set: 0 solved, 215 unsolved in 13865 ms.
Refiners :[Positive P Invariants (semi-flows): 4/4 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 212/212 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 215/215 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/211 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/211 variables, 29/31 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/211 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/212 variables, 2/33 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/212 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (OVERLAPS) 216/428 variables, 212/245 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/428 variables, 38/283 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/428 variables, 215/498 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:14] [INFO ] Deduced a trap composed of 15 places in 97 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:14] [INFO ] Deduced a trap composed of 63 places in 108 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:14] [INFO ] Deduced a trap composed of 65 places in 99 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:14] [INFO ] Deduced a trap composed of 66 places in 96 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:15] [INFO ] Deduced a trap composed of 68 places in 92 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:15] [INFO ] Deduced a trap composed of 46 places in 107 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:15] [INFO ] Deduced a trap composed of 48 places in 98 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:16] [INFO ] Deduced a trap composed of 4 places in 99 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:16] [INFO ] Deduced a trap composed of 6 places in 107 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:17] [INFO ] Deduced a trap composed of 7 places in 102 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:18] [INFO ] Deduced a trap composed of 8 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:18] [INFO ] Deduced a trap composed of 10 places in 88 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:19] [INFO ] Deduced a trap composed of 18 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:20] [INFO ] Deduced a trap composed of 19 places in 75 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:20] [INFO ] Deduced a trap composed of 41 places in 116 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:21] [INFO ] Deduced a trap composed of 41 places in 130 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:21] [INFO ] Deduced a trap composed of 42 places in 121 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:21] [INFO ] Deduced a trap composed of 45 places in 109 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:21] [INFO ] Deduced a trap composed of 48 places in 104 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:21] [INFO ] Deduced a trap composed of 49 places in 113 ms of which 22 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/428 variables, 20/518 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:28] [INFO ] Deduced a trap composed of 68 places in 94 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:28] [INFO ] Deduced a trap composed of 71 places in 101 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:29] [INFO ] Deduced a trap composed of 74 places in 111 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:30] [INFO ] Deduced a trap composed of 76 places in 126 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:31] [INFO ] Deduced a trap composed of 49 places in 112 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:31] [INFO ] Deduced a trap composed of 51 places in 104 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:31] [INFO ] Deduced a trap composed of 49 places in 103 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:31] [INFO ] Deduced a trap composed of 51 places in 110 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 55 places in 104 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 57 places in 133 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 55 places in 96 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 57 places in 97 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 43 places in 103 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 45 places in 104 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:32] [INFO ] Deduced a trap composed of 55 places in 100 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:33] [INFO ] Deduced a trap composed of 57 places in 108 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:33] [INFO ] Deduced a trap composed of 55 places in 100 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:33] [INFO ] Deduced a trap composed of 57 places in 102 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:33] [INFO ] Deduced a trap composed of 61 places in 99 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:33] [INFO ] Deduced a trap composed of 63 places in 104 ms of which 21 ms to minimize.
SMT process timed out in 43920ms, After SMT, problems are : Problem set: 0 solved, 215 unsolved
Search for dead transitions found 0 dead transitions in 43922ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46167 ms. Remains : 212/212 places, 216/216 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 212 transition count 198
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 194 transition count 198
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 44 place count 186 transition count 190
Iterating global reduction 0 with 8 rules applied. Total rules applied 52 place count 186 transition count 190
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 54 place count 185 transition count 189
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 185 transition count 187
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 183 transition count 187
Applied a total of 58 rules in 16 ms. Remains 183 /212 variables (removed 29) and now considering 187/216 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 187 rows 183 cols
[2025-05-30 23:48:33] [INFO ] Computed 33 invariants in 17 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:48:33] [INFO ] [Real]Absence check using 8 positive place invariants in 6 ms returned sat
[2025-05-30 23:48:33] [INFO ] [Real]Absence check using 8 positive and 25 generalized place invariants in 7 ms returned sat
[2025-05-30 23:48:33] [INFO ] After 100ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:48:33] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:48:33] [INFO ] After 15ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:48:33] [INFO ] After 30ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2025-05-30 23:48:33] [INFO ] After 203ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 240 ms.
RANDOM walk for 40000 steps (5727 resets) in 136 ms. (291 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3640 resets) in 83 ms. (476 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 675400 steps, run timeout after 3001 ms. (steps per millisecond=225 ) properties seen :0 out of 1
Probabilistic random walk after 675400 steps, saw 337771 distinct states, run finished after 3001 ms. (steps per millisecond=225 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:48:37] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:48:37] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 33/39 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 82/121 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:37] [INFO ] Deduced a trap composed of 3 places in 74 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 324 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 33/39 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 82/121 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:37] [INFO ] Deduced a trap along path composed of 4 places in 37 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/491 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 2/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/493 variables, 2/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:37] [INFO ] Deduced a trap along path composed of 2 places in 26 ms of which 1 ms to minimize.
At refinement iteration 23 (INCLUDED_ONLY) 0/493 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 5/498 variables, 4/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 24 places in 76 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 20 places in 71 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 24 places in 74 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 26 places in 62 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 28 places in 81 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 24 places in 83 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:38] [INFO ] Deduced a trap composed of 32 places in 53 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:39] [INFO ] Deduced a trap composed of 28 places in 70 ms of which 15 ms to minimize.
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 8/332 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/498 variables, 1/333 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/498 variables, 0/333 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/498 variables, 0/333 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 333 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1986 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 2332ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 387 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 27 times.
Iterating global reduction 1 with 27 rules applied. Total rules applied 29 place count 251 transition count 218
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 56 place count 224 transition count 218
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 81 place count 224 transition count 218
Applied a total of 81 rules in 18 ms. Remains 224 /252 variables (removed 28) and now considering 218/246 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 224/252 places, 218/246 transitions.
RANDOM walk for 40000 steps (5774 resets) in 131 ms. (303 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3610 resets) in 89 ms. (444 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 681718 steps, run timeout after 3001 ms. (steps per millisecond=227 ) properties seen :0 out of 1
Probabilistic random walk after 681718 steps, saw 340933 distinct states, run finished after 3001 ms. (steps per millisecond=227 ) properties seen :0
// Phase 1: matrix 218 rows 224 cols
[2025-05-30 23:48:42] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:48:42] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 124/130 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:42] [INFO ] Deduced a trap composed of 107 places in 76 ms of which 9 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 12/142 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/142 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 77/219 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:43] [INFO ] Deduced a trap composed of 3 places in 116 ms of which 5 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/219 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 218/437 variables, 219/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 38/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/442 variables, 5/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/442 variables, 2/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 442/442 variables, and 307 constraints, problems are : Problem set: 0 solved, 1 unsolved in 405 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 124/130 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 12/142 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/142 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 77/219 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/219 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 218/437 variables, 219/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 38/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 1/301 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:43] [INFO ] Deduced a trap composed of 6 places in 90 ms of which 5 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/437 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/437 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 5/442 variables, 5/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/442 variables, 2/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/442 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/442 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 442/442 variables, and 309 constraints, problems are : Problem set: 0 solved, 1 unsolved in 531 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 958ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 51 ms.
Support contains 1 out of 224 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 3 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 224/224 places, 218/218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 3 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
[2025-05-30 23:48:43] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:44] [INFO ] Implicit Places using invariants in 624 ms returned [43, 48, 69, 74, 94, 100, 121, 126, 146, 151, 172, 178]
[2025-05-30 23:48:44] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 626 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 222/224 places, 218/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 217
Applied a total of 2 rules in 9 ms. Remains 221 /222 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 221 cols
[2025-05-30 23:48:44] [INFO ] Computed 41 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:45] [INFO ] Implicit Places using invariants in 565 ms returned [66, 71, 91, 97, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:48:45] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 567 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 219/224 places, 217/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 216
Applied a total of 2 rules in 9 ms. Remains 218 /219 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 218 cols
[2025-05-30 23:48:45] [INFO ] Computed 39 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:45] [INFO ] Implicit Places using invariants in 485 ms returned [88, 94, 115, 120, 140, 145, 166, 172]
[2025-05-30 23:48:45] [INFO ] Actually due to overlaps returned [94, 88]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 487 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 216/224 places, 216/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 215
Applied a total of 2 rules in 9 ms. Remains 215 /216 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 215 cols
[2025-05-30 23:48:45] [INFO ] Computed 37 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:46] [INFO ] Implicit Places using invariants in 436 ms returned [112, 117, 137, 142, 163, 169]
[2025-05-30 23:48:46] [INFO ] Actually due to overlaps returned [117, 112]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 437 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 213/224 places, 215/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 214
Applied a total of 2 rules in 10 ms. Remains 212 /213 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 212 cols
[2025-05-30 23:48:46] [INFO ] Computed 35 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:46] [INFO ] Implicit Places using invariants in 367 ms returned [134, 139, 160, 166]
[2025-05-30 23:48:46] [INFO ] Actually due to overlaps returned [139, 134]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 368 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 210/224 places, 214/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 210 transition count 213
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 209 transition count 213
Applied a total of 2 rules in 11 ms. Remains 209 /210 variables (removed 1) and now considering 213/214 (removed 1) transitions.
// Phase 1: matrix 213 rows 209 cols
[2025-05-30 23:48:46] [INFO ] Computed 33 invariants in 18 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:46] [INFO ] Implicit Places using invariants in 368 ms returned [157, 163]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 369 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 207/224 places, 213/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 207 transition count 212
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 206 transition count 212
Applied a total of 2 rules in 8 ms. Remains 206 /207 variables (removed 1) and now considering 212/213 (removed 1) transitions.
// Phase 1: matrix 212 rows 206 cols
[2025-05-30 23:48:46] [INFO ] Computed 31 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:47] [INFO ] Implicit Places using invariants in 369 ms returned []
[2025-05-30 23:48:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:47] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:48:49] [INFO ] Implicit Places using invariants and state equation in 2202 ms returned []
Implicit Place search using SMT with State Equation took 2572 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 206/224 places, 212/218 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5486 ms. Remains : 206/224 places, 212/218 transitions.
RANDOM walk for 40000 steps (5758 resets) in 134 ms. (296 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3668 resets) in 77 ms. (512 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 688688 steps, run timeout after 3001 ms. (steps per millisecond=229 ) properties seen :0 out of 1
Probabilistic random walk after 688688 steps, saw 344421 distinct states, run finished after 3001 ms. (steps per millisecond=229 ) properties seen :0
[2025-05-30 23:48:52] [INFO ] Invariant cache hit.
[2025-05-30 23:48:52] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 125/131 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/131 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 20/151 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 50/201 variables, 17/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:52] [INFO ] Deduced a trap composed of 4 places in 107 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:52] [INFO ] Deduced a trap composed of 7 places in 100 ms of which 7 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/201 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 212/413 variables, 201/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/413 variables, 38/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/418 variables, 5/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/418 variables, 2/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 405 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 125/131 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/131 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 20/151 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 50/201 variables, 17/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 10 places in 118 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 15 places in 110 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 16 places in 119 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 50 places in 118 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 50 places in 119 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 50 places in 114 ms of which 17 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/201 variables, 6/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/201 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 212/413 variables, 201/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 38/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/413 variables, 1/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:53] [INFO ] Deduced a trap composed of 15 places in 75 ms of which 5 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/413 variables, 1/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:54] [INFO ] Deduced a trap along path composed of 5 places in 30 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:54] [INFO ] Deduced a trap along path composed of 8 places in 31 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:48:54] [INFO ] Deduced a trap along path composed of 8 places in 33 ms of which 0 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/413 variables, 3/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/413 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 5/418 variables, 5/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/418 variables, 2/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/418 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 0/418 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 418/418 variables, and 288 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1502 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 1915ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 221 ms.
Support contains 1 out of 206 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 3 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 206/206 places, 212/212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 4 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
[2025-05-30 23:48:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:54] [INFO ] Implicit Places using invariants in 355 ms returned []
[2025-05-30 23:48:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:48:55] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:48:57] [INFO ] Implicit Places using invariants and state equation in 2188 ms returned []
Implicit Place search using SMT with State Equation took 2545 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:48:57] [INFO ] Redundant transitions in 1 ms returned []
Running 211 sub problems to find dead transitions.
[2025-05-30 23:48:57] [INFO ] Invariant cache hit.
[2025-05-30 23:48:57] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 8 (OVERLAPS) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 275 constraints, problems are : Problem set: 0 solved, 211 unsolved in 13622 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 211/211 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 211/486 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:23] [INFO ] Deduced a trap composed of 4 places in 108 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:23] [INFO ] Deduced a trap composed of 8 places in 103 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:24] [INFO ] Deduced a trap composed of 6 places in 75 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:25] [INFO ] Deduced a trap composed of 7 places in 84 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:25] [INFO ] Deduced a trap composed of 10 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:25] [INFO ] Deduced a trap composed of 16 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:26] [INFO ] Deduced a trap composed of 10 places in 79 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:29] [INFO ] Deduced a trap composed of 18 places in 64 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:30] [INFO ] Deduced a trap composed of 22 places in 63 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:30] [INFO ] Deduced a trap composed of 19 places in 61 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:30] [INFO ] Deduced a trap composed of 53 places in 122 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:30] [INFO ] Deduced a trap composed of 53 places in 109 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:30] [INFO ] Deduced a trap composed of 3 places in 77 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:31] [INFO ] Deduced a trap composed of 21 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:32] [INFO ] Deduced a trap composed of 24 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:32] [INFO ] Deduced a trap composed of 25 places in 57 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:32] [INFO ] Deduced a trap composed of 28 places in 52 ms of which 4 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/418 variables, 17/503 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:38] [INFO ] Deduced a trap composed of 12 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:40] [INFO ] Deduced a trap composed of 66 places in 94 ms of which 7 ms to minimize.
SMT process timed out in 43771ms, After SMT, problems are : Problem set: 0 solved, 211 unsolved
Search for dead transitions found 0 dead transitions in 43772ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46334 ms. Remains : 206/206 places, 212/212 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 206 transition count 194
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 188 transition count 194
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 45 place count 179 transition count 185
Iterating global reduction 0 with 9 rules applied. Total rules applied 54 place count 179 transition count 185
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 178 transition count 184
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 58 place count 178 transition count 182
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 60 place count 176 transition count 182
Applied a total of 60 rules in 11 ms. Remains 176 /206 variables (removed 30) and now considering 182/212 (removed 30) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 182 rows 176 cols
[2025-05-30 23:49:40] [INFO ] Computed 31 invariants in 12 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:49:40] [INFO ] [Real]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:49:40] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:49:41] [INFO ] After 82ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:49:41] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:49:41] [INFO ] After 25ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:49:41] [INFO ] After 164ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:49:41] [INFO ] [Nat]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:49:41] [INFO ] [Nat]Absence check using 13 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:49:41] [INFO ] After 107ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:49:41] [INFO ] After 15ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:49:41] [INFO ] After 32ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:49:41] [INFO ] After 211ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 402 ms.
RANDOM walk for 40000 steps (5717 resets) in 118 ms. (336 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3688 resets) in 74 ms. (533 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 672632 steps, run timeout after 3001 ms. (steps per millisecond=224 ) properties seen :0 out of 1
Probabilistic random walk after 672632 steps, saw 336391 distinct states, run finished after 3001 ms. (steps per millisecond=224 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:49:44] [INFO ] Computed 43 invariants in 16 ms
[2025-05-30 23:49:44] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 24/28 variables, 7/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 85/113 variables, 7/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/113 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/113 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 56/169 variables, 18/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:44] [INFO ] Deduced a trap composed of 3 places in 64 ms of which 4 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/169 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 43/212 variables, 5/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/212 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 28/240 variables, 9/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/240 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 219/459 variables, 214/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/459 variables, 23/287 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 18 (INCLUDED_ONLY) 0/459 variables, 0/287 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/491 variables, 23/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 446 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 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) 24/28 variables, 7/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 1/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 85/113 variables, 7/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/113 variables, 1/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/113 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 56/169 variables, 18/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/169 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/169 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 43/212 variables, 5/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/212 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 28/240 variables, 9/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/240 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 219/459 variables, 214/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/459 variables, 23/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/459 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 32/491 variables, 23/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/491 variables, 2/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/491 variables, 0/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 2/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/493 variables, 0/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 5/498 variables, 4/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/498 variables, 1/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap composed of 8 places in 100 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap composed of 19 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap composed of 19 places in 67 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap composed of 16 places in 72 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap composed of 13 places in 84 ms of which 6 ms to minimize.
At refinement iteration 29 (INCLUDED_ONLY) 0/498 variables, 5/328 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap along path composed of 6 places in 30 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:45] [INFO ] Deduced a trap along path composed of 5 places in 37 ms of which 1 ms to minimize.
At refinement iteration 30 (INCLUDED_ONLY) 0/498 variables, 2/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/498 variables, 0/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 32 (OVERLAPS) 0/498 variables, 0/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 330 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1011 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 1477ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 212 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 26 times.
Iterating global reduction 1 with 26 rules applied. Total rules applied 28 place count 251 transition count 219
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 54 place count 225 transition count 219
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 79 place count 225 transition count 219
Applied a total of 79 rules in 11 ms. Remains 225 /252 variables (removed 27) and now considering 219/246 (removed 27) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 225/252 places, 219/246 transitions.
RANDOM walk for 40000 steps (5761 resets) in 124 ms. (320 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3705 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 677087 steps, run timeout after 3001 ms. (steps per millisecond=225 ) properties seen :0 out of 1
Probabilistic random walk after 677087 steps, saw 338617 distinct states, run finished after 3001 ms. (steps per millisecond=225 ) properties seen :0
// Phase 1: matrix 219 rows 225 cols
[2025-05-30 23:49:49] [INFO ] Computed 43 invariants in 13 ms
[2025-05-30 23:49:49] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 149/150 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/150 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 68/218 variables, 29/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 4 places in 113 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 6 places in 119 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 7 places in 100 ms of which 6 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/218 variables, 3/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/218 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 2/220 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 9 places in 109 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 10 places in 104 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 10 places in 102 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:49] [INFO ] Deduced a trap composed of 13 places in 100 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:50] [INFO ] Deduced a trap composed of 13 places in 81 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:50] [INFO ] Deduced a trap composed of 17 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:50] [INFO ] Deduced a trap composed of 18 places in 84 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/220 variables, 7/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/220 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 219/439 variables, 220/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/439 variables, 38/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/439 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 5/444 variables, 5/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/444 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/444 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/444 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 444/444 variables, and 316 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1338 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 30/30 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 10/10 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 149/150 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/150 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 68/218 variables, 29/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/218 variables, 9/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/218 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 2/220 variables, 1/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/220 variables, 1/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/220 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 219/439 variables, 220/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/439 variables, 38/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/439 variables, 1/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:50] [INFO ] Deduced a trap composed of 19 places in 88 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:50] [INFO ] Deduced a trap composed of 16 places in 83 ms of which 7 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/439 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/439 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/444 variables, 5/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/444 variables, 2/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/444 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/444 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 444/444 variables, and 319 constraints, problems are : Problem set: 0 solved, 1 unsolved in 554 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 30/30 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 12/12 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1913ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 163 ms.
Support contains 1 out of 225 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 3 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 225/225 places, 219/219 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 4 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
[2025-05-30 23:49:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:51] [INFO ] Implicit Places using invariants in 621 ms returned [43, 48, 70, 75, 95, 101, 122, 127, 147, 152, 173, 179]
[2025-05-30 23:49:51] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 622 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 223/225 places, 219/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 223 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 222 transition count 218
Applied a total of 2 rules in 10 ms. Remains 222 /223 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 222 cols
[2025-05-30 23:49:51] [INFO ] Computed 41 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:52] [INFO ] Implicit Places using invariants in 530 ms returned [67, 72, 92, 98, 119, 124, 144, 149, 170, 176]
[2025-05-30 23:49:52] [INFO ] Actually due to overlaps returned [72, 67]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 531 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 220/225 places, 218/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 220 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 219 transition count 217
Applied a total of 2 rules in 9 ms. Remains 219 /220 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 219 cols
[2025-05-30 23:49:52] [INFO ] Computed 39 invariants in 16 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:52] [INFO ] Implicit Places using invariants in 504 ms returned [89, 95, 116, 121, 141, 146, 167, 173]
[2025-05-30 23:49:52] [INFO ] Actually due to overlaps returned [95, 89]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 506 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 217/225 places, 217/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 217 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 216 transition count 216
Applied a total of 2 rules in 6 ms. Remains 216 /217 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 216 cols
[2025-05-30 23:49:52] [INFO ] Computed 37 invariants in 7 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:53] [INFO ] Implicit Places using invariants in 424 ms returned [113, 118, 138, 143, 164, 170]
[2025-05-30 23:49:53] [INFO ] Actually due to overlaps returned [118, 113]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 425 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 214/225 places, 216/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 214 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 213 transition count 215
Applied a total of 2 rules in 9 ms. Remains 213 /214 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 213 cols
[2025-05-30 23:49:53] [INFO ] Computed 35 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:53] [INFO ] Implicit Places using invariants in 422 ms returned [135, 140, 161, 167]
[2025-05-30 23:49:53] [INFO ] Actually due to overlaps returned [140, 135]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 424 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 211/225 places, 215/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 211 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 210 transition count 214
Applied a total of 2 rules in 13 ms. Remains 210 /211 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 210 cols
[2025-05-30 23:49:53] [INFO ] Computed 33 invariants in 17 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:54] [INFO ] Implicit Places using invariants in 362 ms returned [158, 164]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 364 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 208/225 places, 214/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 208 transition count 213
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 207 transition count 213
Applied a total of 2 rules in 8 ms. Remains 207 /208 variables (removed 1) and now considering 213/214 (removed 1) transitions.
// Phase 1: matrix 213 rows 207 cols
[2025-05-30 23:49:54] [INFO ] Computed 31 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:54] [INFO ] Implicit Places using invariants in 353 ms returned []
[2025-05-30 23:49:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:49:54] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:49:56] [INFO ] Implicit Places using invariants and state equation in 1671 ms returned []
Implicit Place search using SMT with State Equation took 2026 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 207/225 places, 213/219 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 4963 ms. Remains : 207/225 places, 213/219 transitions.
RANDOM walk for 40000 steps (5788 resets) in 116 ms. (341 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40000 steps (3630 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 693632 steps, run timeout after 3001 ms. (steps per millisecond=231 ) properties seen :0 out of 1
Probabilistic random walk after 693632 steps, saw 346891 distinct states, run finished after 3001 ms. (steps per millisecond=231 ) properties seen :0
[2025-05-30 23:49:59] [INFO ] Invariant cache hit.
[2025-05-30 23:49:59] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 147/148 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:59] [INFO ] Deduced a trap composed of 3 places in 77 ms of which 4 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/148 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/148 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 54/202 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:59] [INFO ] Deduced a trap composed of 4 places in 111 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:49:59] [INFO ] Deduced a trap composed of 7 places in 98 ms of which 6 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/202 variables, 2/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 213/415 variables, 202/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/415 variables, 38/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/415 variables, 0/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 5/420 variables, 5/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/420 variables, 2/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/420 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/420 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 420/420 variables, and 279 constraints, problems are : Problem set: 0 solved, 1 unsolved in 558 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 207/207 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 147/148 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/148 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/148 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 54/202 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/202 variables, 2/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 213/415 variables, 202/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/415 variables, 38/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/415 variables, 1/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/415 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/420 variables, 5/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/420 variables, 2/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:00] [INFO ] Deduced a trap composed of 19 places in 75 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:00] [INFO ] Deduced a trap composed of 16 places in 78 ms of which 5 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/420 variables, 2/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:00] [INFO ] Deduced a trap along path composed of 4 places in 31 ms of which 1 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/420 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/420 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/420 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 420/420 variables, and 283 constraints, problems are : Problem set: 0 solved, 1 unsolved in 580 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 207/207 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 1143ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 147 ms.
Support contains 1 out of 207 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 207/207 places, 213/213 transitions.
Applied a total of 0 rules in 3 ms. Remains 207 /207 variables (removed 0) and now considering 213/213 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 207/207 places, 213/213 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 207/207 places, 213/213 transitions.
Applied a total of 0 rules in 3 ms. Remains 207 /207 variables (removed 0) and now considering 213/213 (removed 0) transitions.
[2025-05-30 23:50:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:00] [INFO ] Implicit Places using invariants in 333 ms returned []
[2025-05-30 23:50:00] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:00] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:50:02] [INFO ] Implicit Places using invariants and state equation in 1691 ms returned []
Implicit Place search using SMT with State Equation took 2026 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:50:02] [INFO ] Redundant transitions in 2 ms returned []
Running 212 sub problems to find dead transitions.
[2025-05-30 23:50:02] [INFO ] Invariant cache hit.
[2025-05-30 23:50:02] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/206 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/206 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/206 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 3 (OVERLAPS) 1/207 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/207 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 5 (OVERLAPS) 213/420 variables, 207/238 constraints. Problems are: Problem set: 0 solved, 212 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/420 variables, 38/276 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/420 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 8 (OVERLAPS) 0/420 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 212 unsolved
No progress, stopping.
After SMT solving in domain Real declared 420/420 variables, and 276 constraints, problems are : Problem set: 0 solved, 212 unsolved in 14096 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 207/207 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 212/212 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 212 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/206 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/206 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/206 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 3 (OVERLAPS) 1/207 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/207 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 5 (OVERLAPS) 213/420 variables, 207/238 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/420 variables, 38/276 constraints. Problems are: Problem set: 0 solved, 212 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/420 variables, 212/488 constraints. Problems are: Problem set: 0 solved, 212 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:27] [INFO ] Deduced a trap composed of 71 places in 100 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:29] [INFO ] Deduced a trap composed of 4 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:29] [INFO ] Deduced a trap composed of 6 places in 86 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:30] [INFO ] Deduced a trap composed of 7 places in 90 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:30] [INFO ] Deduced a trap composed of 8 places in 85 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:31] [INFO ] Deduced a trap composed of 7 places in 81 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:32] [INFO ] Deduced a trap composed of 10 places in 118 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:32] [INFO ] Deduced a trap composed of 15 places in 114 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:32] [INFO ] Deduced a trap composed of 20 places in 107 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:33] [INFO ] Deduced a trap composed of 22 places in 111 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:33] [INFO ] Deduced a trap composed of 23 places in 113 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:34] [INFO ] Deduced a trap composed of 26 places in 113 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:34] [INFO ] Deduced a trap composed of 16 places in 109 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:34] [INFO ] Deduced a trap composed of 19 places in 112 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:34] [INFO ] Deduced a trap composed of 28 places in 118 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:35] [INFO ] Deduced a trap composed of 32 places in 111 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:36] [INFO ] Deduced a trap composed of 26 places in 115 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:36] [INFO ] Deduced a trap composed of 30 places in 117 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:36] [INFO ] Deduced a trap composed of 19 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:37] [INFO ] Deduced a trap composed of 56 places in 107 ms of which 18 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/420 variables, 20/508 constraints. Problems are: Problem set: 0 solved, 212 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 420/420 variables, and 508 constraints, problems are : Problem set: 0 solved, 212 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 207/207 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 212/212 constraints, Known Traps: 20/20 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 44158ms problems are : Problem set: 0 solved, 212 unsolved
Search for dead transitions found 0 dead transitions in 44160ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46195 ms. Remains : 207/207 places, 213/213 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 207 transition count 195
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 189 transition count 195
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 45 place count 180 transition count 186
Iterating global reduction 0 with 9 rules applied. Total rules applied 54 place count 180 transition count 186
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 179 transition count 185
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 58 place count 179 transition count 183
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 60 place count 177 transition count 183
Applied a total of 60 rules in 12 ms. Remains 177 /207 variables (removed 30) and now considering 183/213 (removed 30) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 183 rows 177 cols
[2025-05-30 23:50:46] [INFO ] Computed 31 invariants in 12 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:50:46] [INFO ] [Real]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:50:46] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:50:46] [INFO ] After 116ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:50:46] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:50:46] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:46] [INFO ] Deduced a trap composed of 5 places in 86 ms of which 4 ms to minimize.
TRAPS : Iteration 1
[2025-05-30 23:50:47] [INFO ] After 121ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:50:47] [INFO ] After 301ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:50:47] [INFO ] [Nat]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:50:47] [INFO ] [Nat]Absence check using 13 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:50:47] [INFO ] After 113ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:50:47] [INFO ] After 16ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:47] [INFO ] Deduced a trap composed of 5 places in 82 ms of which 4 ms to minimize.
[2025-05-30 23:50:47] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 103 ms
TRAPS : Iteration 1
[2025-05-30 23:50:47] [INFO ] After 136ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:50:47] [INFO ] After 319ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 651 ms.
RANDOM walk for 40000 steps (5774 resets) in 139 ms. (285 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3605 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 659337 steps, run timeout after 3001 ms. (steps per millisecond=219 ) properties seen :0 out of 1
Probabilistic random walk after 659337 steps, saw 329741 distinct states, run finished after 3001 ms. (steps per millisecond=219 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:50:50] [INFO ] Computed 43 invariants in 15 ms
[2025-05-30 23:50:50] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 29/30 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 91/121 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:50] [INFO ] Deduced a trap composed of 3 places in 74 ms of which 4 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 503 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 29/30 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 91/121 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:51] [INFO ] Deduced a trap composed of 4 places in 83 ms of which 4 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 324 constraints, problems are : Problem set: 0 solved, 1 unsolved in 775 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1298ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 93 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 27 times.
Iterating global reduction 1 with 27 rules applied. Total rules applied 29 place count 251 transition count 218
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 56 place count 224 transition count 218
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 81 place count 224 transition count 218
Applied a total of 81 rules in 12 ms. Remains 224 /252 variables (removed 28) and now considering 218/246 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 224/252 places, 218/246 transitions.
RANDOM walk for 40000 steps (5726 resets) in 125 ms. (317 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3623 resets) in 72 ms. (547 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 668816 steps, run timeout after 3001 ms. (steps per millisecond=222 ) properties seen :0 out of 1
Probabilistic random walk after 668816 steps, saw 334484 distinct states, run finished after 3001 ms. (steps per millisecond=222 ) properties seen :0
// Phase 1: matrix 218 rows 224 cols
[2025-05-30 23:50:54] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:50:54] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 84/85 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/85 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 53/138 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 111 places in 70 ms of which 9 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/138 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/138 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 81/219 variables, 36/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 3 places in 130 ms of which 6 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/219 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 218/437 variables, 219/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/437 variables, 38/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/437 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 5/442 variables, 5/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/442 variables, 2/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 442/442 variables, and 307 constraints, problems are : Problem set: 0 solved, 1 unsolved in 541 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 84/85 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/85 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 53/138 variables, 2/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/138 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/138 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 81/219 variables, 36/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 4 places in 119 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 6 places in 123 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 7 places in 116 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:50:55] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 7 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/219 variables, 4/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 218/437 variables, 219/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/437 variables, 38/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 1/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/442 variables, 5/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/442 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/442 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/442 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 442/442 variables, and 312 constraints, problems are : Problem set: 0 solved, 1 unsolved in 841 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1406ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 87 ms.
Support contains 1 out of 224 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 3 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 224/224 places, 218/218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 4 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
[2025-05-30 23:50:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:57] [INFO ] Implicit Places using invariants in 642 ms returned [43, 48, 69, 74, 94, 100, 121, 126, 146, 151, 172, 178]
[2025-05-30 23:50:57] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 650 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 222/224 places, 218/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 217
Applied a total of 2 rules in 9 ms. Remains 221 /222 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 221 cols
[2025-05-30 23:50:57] [INFO ] Computed 41 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:57] [INFO ] Implicit Places using invariants in 536 ms returned [66, 71, 91, 97, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:50:57] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 537 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 219/224 places, 217/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 216
Applied a total of 2 rules in 9 ms. Remains 218 /219 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 218 cols
[2025-05-30 23:50:57] [INFO ] Computed 39 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:58] [INFO ] Implicit Places using invariants in 458 ms returned [88, 94, 115, 120, 140, 145, 166, 172]
[2025-05-30 23:50:58] [INFO ] Actually due to overlaps returned [94, 88]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 459 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 216/224 places, 216/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 215
Applied a total of 2 rules in 11 ms. Remains 215 /216 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 215 cols
[2025-05-30 23:50:58] [INFO ] Computed 37 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:58] [INFO ] Implicit Places using invariants in 433 ms returned [112, 117, 137, 142, 163, 169]
[2025-05-30 23:50:58] [INFO ] Actually due to overlaps returned [117, 112]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 435 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 213/224 places, 215/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 214
Applied a total of 2 rules in 10 ms. Remains 212 /213 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 212 cols
[2025-05-30 23:50:58] [INFO ] Computed 35 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:58] [INFO ] Implicit Places using invariants in 399 ms returned [134, 139, 160, 166]
[2025-05-30 23:50:58] [INFO ] Actually due to overlaps returned [139, 134]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 400 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 210/224 places, 214/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 210 transition count 213
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 209 transition count 213
Applied a total of 2 rules in 10 ms. Remains 209 /210 variables (removed 1) and now considering 213/214 (removed 1) transitions.
// Phase 1: matrix 213 rows 209 cols
[2025-05-30 23:50:58] [INFO ] Computed 33 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:59] [INFO ] Implicit Places using invariants in 381 ms returned [157, 163]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 383 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 207/224 places, 213/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 207 transition count 212
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 206 transition count 212
Applied a total of 2 rules in 9 ms. Remains 206 /207 variables (removed 1) and now considering 212/213 (removed 1) transitions.
// Phase 1: matrix 212 rows 206 cols
[2025-05-30 23:50:59] [INFO ] Computed 31 invariants in 17 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:59] [INFO ] Implicit Places using invariants in 355 ms returned []
[2025-05-30 23:50:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:50:59] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:51:01] [INFO ] Implicit Places using invariants and state equation in 2011 ms returned []
Implicit Place search using SMT with State Equation took 2368 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 206/224 places, 212/218 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5296 ms. Remains : 206/224 places, 212/218 transitions.
RANDOM walk for 40000 steps (5719 resets) in 146 ms. (272 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3679 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 694749 steps, run timeout after 3001 ms. (steps per millisecond=231 ) properties seen :0 out of 1
Probabilistic random walk after 694749 steps, saw 347446 distinct states, run finished after 3002 ms. (steps per millisecond=231 ) properties seen :0
[2025-05-30 23:51:04] [INFO ] Invariant cache hit.
[2025-05-30 23:51:04] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 86/87 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/87 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/147 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/201 variables, 18/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:04] [INFO ] Deduced a trap composed of 4 places in 113 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:05] [INFO ] Deduced a trap composed of 7 places in 108 ms of which 8 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/201 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 212/413 variables, 201/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/413 variables, 38/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/413 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/418 variables, 5/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/418 variables, 2/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 469 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 86/87 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/87 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/147 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 54/201 variables, 18/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/201 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 212/413 variables, 201/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/413 variables, 38/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/413 variables, 1/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:05] [INFO ] Deduced a trap along path composed of 4 places in 32 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:05] [INFO ] Deduced a trap along path composed of 8 places in 32 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/413 variables, 2/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/418 variables, 5/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/418 variables, 2/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/418 variables, 0/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/418 variables, 0/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 418/418 variables, and 280 constraints, problems are : Problem set: 0 solved, 1 unsolved in 458 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 934ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 88 ms.
Support contains 1 out of 206 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 3 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 206/206 places, 212/212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 3 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
[2025-05-30 23:51:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:51:06] [INFO ] Implicit Places using invariants in 350 ms returned []
[2025-05-30 23:51:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:51:06] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:51:08] [INFO ] Implicit Places using invariants and state equation in 2061 ms returned []
Implicit Place search using SMT with State Equation took 2413 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:51:08] [INFO ] Redundant transitions in 1 ms returned []
Running 211 sub problems to find dead transitions.
[2025-05-30 23:51:08] [INFO ] Invariant cache hit.
[2025-05-30 23:51:08] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 8 (OVERLAPS) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 275 constraints, problems are : Problem set: 0 solved, 211 unsolved in 14311 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 211/211 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 211/486 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:34] [INFO ] Deduced a trap composed of 4 places in 104 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:34] [INFO ] Deduced a trap composed of 8 places in 101 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:36] [INFO ] Deduced a trap composed of 6 places in 79 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:36] [INFO ] Deduced a trap composed of 7 places in 88 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:37] [INFO ] Deduced a trap composed of 10 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:37] [INFO ] Deduced a trap composed of 16 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:37] [INFO ] Deduced a trap composed of 10 places in 89 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:41] [INFO ] Deduced a trap composed of 18 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:41] [INFO ] Deduced a trap composed of 22 places in 63 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:41] [INFO ] Deduced a trap composed of 19 places in 62 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:42] [INFO ] Deduced a trap composed of 53 places in 125 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:42] [INFO ] Deduced a trap composed of 53 places in 119 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:42] [INFO ] Deduced a trap composed of 3 places in 79 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:43] [INFO ] Deduced a trap composed of 21 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:43] [INFO ] Deduced a trap composed of 24 places in 59 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:43] [INFO ] Deduced a trap composed of 25 places in 55 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:43] [INFO ] Deduced a trap composed of 28 places in 53 ms of which 4 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/418 variables, 17/503 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:50] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:52] [INFO ] Deduced a trap composed of 66 places in 87 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:52] [INFO ] Deduced a trap composed of 69 places in 97 ms of which 8 ms to minimize.
SMT process timed out in 44451ms, After SMT, problems are : Problem set: 0 solved, 211 unsolved
Search for dead transitions found 0 dead transitions in 44452ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46878 ms. Remains : 206/206 places, 212/212 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 206 transition count 194
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 188 transition count 194
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 45 place count 179 transition count 185
Iterating global reduction 0 with 9 rules applied. Total rules applied 54 place count 179 transition count 185
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 0 with 2 rules applied. Total rules applied 56 place count 178 transition count 184
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 58 place count 178 transition count 182
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 60 place count 176 transition count 182
Applied a total of 60 rules in 15 ms. Remains 176 /206 variables (removed 30) and now considering 182/212 (removed 30) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 182 rows 176 cols
[2025-05-30 23:51:52] [INFO ] Computed 31 invariants in 15 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:51:52] [INFO ] [Real]Absence check using 13 positive place invariants in 7 ms returned sat
[2025-05-30 23:51:52] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:51:52] [INFO ] After 91ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:51:52] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:51:52] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:51:52] [INFO ] After 22ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2025-05-30 23:51:52] [INFO ] After 183ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 216 ms.
RANDOM walk for 40000 steps (5759 resets) in 122 ms. (325 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3693 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 678673 steps, run timeout after 3001 ms. (steps per millisecond=226 ) properties seen :0 out of 1
Probabilistic random walk after 678673 steps, saw 339411 distinct states, run finished after 3001 ms. (steps per millisecond=226 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:51:55] [INFO ] Computed 43 invariants in 15 ms
[2025-05-30 23:51:55] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 29/30 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 91/121 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 2/493 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/493 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 5/498 variables, 4/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 1 unsolved in 426 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 29/30 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/30 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 91/121 variables, 14/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:56] [INFO ] Deduced a trap composed of 4 places in 95 ms of which 5 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:57] [INFO ] Deduced a trap along path composed of 9 places in 47 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:57] [INFO ] Deduced a trap along path composed of 4 places in 41 ms of which 1 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:57] [INFO ] Deduced a trap composed of 9 places in 104 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:57] [INFO ] Deduced a trap composed of 8 places in 86 ms of which 5 ms to minimize.
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 2/327 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:57] [INFO ] Deduced a trap along path composed of 8 places in 41 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap along path composed of 11 places in 54 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap along path composed of 4 places in 54 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap along path composed of 4 places in 46 ms of which 2 ms to minimize.
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 4/331 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap composed of 21 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap composed of 28 places in 52 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap composed of 32 places in 56 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:51:58] [INFO ] Deduced a trap composed of 26 places in 66 ms of which 5 ms to minimize.
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 4/335 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/498 variables, 0/335 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 0/498 variables, 0/335 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 335 constraints, problems are : Problem set: 0 solved, 1 unsolved in 2474 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 6/6 constraints]
After SMT, in 2924ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 997 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 27 times.
Iterating global reduction 1 with 27 rules applied. Total rules applied 29 place count 251 transition count 218
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 56 place count 224 transition count 218
Partial Free-agglomeration rule applied 24 times.
Drop transitions (Partial Free agglomeration) removed 24 transitions
Iterating global reduction 2 with 24 rules applied. Total rules applied 80 place count 224 transition count 218
Applied a total of 80 rules in 13 ms. Remains 224 /252 variables (removed 28) and now considering 218/246 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 224/252 places, 218/246 transitions.
RANDOM walk for 40000 steps (5807 resets) in 175 ms. (227 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3613 resets) in 96 ms. (412 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 678319 steps, run timeout after 3001 ms. (steps per millisecond=226 ) properties seen :0 out of 1
Probabilistic random walk after 678319 steps, saw 339234 distinct states, run finished after 3001 ms. (steps per millisecond=226 ) properties seen :0
// Phase 1: matrix 218 rows 224 cols
[2025-05-30 23:52:02] [INFO ] Computed 43 invariants in 16 ms
[2025-05-30 23:52:02] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 125/126 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/126 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/138 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/138 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 81/219 variables, 36/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:03] [INFO ] Deduced a trap composed of 3 places in 117 ms of which 5 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/219 variables, 1/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/219 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 218/437 variables, 219/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/437 variables, 38/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/437 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/442 variables, 5/304 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/442 variables, 2/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/442 variables, 0/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/442 variables, 0/306 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 442/442 variables, and 306 constraints, problems are : Problem set: 0 solved, 1 unsolved in 468 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 125/126 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/126 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/138 variables, 3/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/138 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 81/219 variables, 36/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/219 variables, 1/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:03] [INFO ] Deduced a trap composed of 4 places in 132 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:03] [INFO ] Deduced a trap composed of 6 places in 124 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:03] [INFO ] Deduced a trap composed of 7 places in 122 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 9 places in 128 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 10 places in 131 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 10 places in 125 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 13 places in 119 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 15 places in 123 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 16 places in 118 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 17 places in 122 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:04] [INFO ] Deduced a trap composed of 19 places in 117 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 19 places in 121 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 22 places in 124 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 24 places in 118 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 25 places in 121 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 27 places in 120 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 28 places in 120 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:05] [INFO ] Deduced a trap composed of 35 places in 126 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 42 places in 182 ms of which 84 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 21 places in 110 ms of which 14 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/219 variables, 20/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 22 places in 121 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 18 places in 122 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 44 places in 139 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 26 places in 125 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:06] [INFO ] Deduced a trap composed of 47 places in 155 ms of which 50 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 47 places in 143 ms of which 36 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 48 places in 173 ms of which 64 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 47 places in 130 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 48 places in 136 ms of which 28 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 30 places in 123 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 36 places in 146 ms of which 45 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:07] [INFO ] Deduced a trap composed of 42 places in 147 ms of which 44 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 46 places in 141 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 48 places in 140 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 49 places in 155 ms of which 53 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 45 places in 149 ms of which 47 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 48 places in 129 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 48 places in 146 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:08] [INFO ] Deduced a trap composed of 49 places in 131 ms of which 37 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:09] [INFO ] Deduced a trap composed of 42 places in 284 ms of which 181 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/219 variables, 20/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:09] [INFO ] Deduced a trap composed of 42 places in 188 ms of which 72 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:09] [INFO ] Deduced a trap composed of 16 places in 116 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:09] [INFO ] Deduced a trap composed of 12 places in 111 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:09] [INFO ] Deduced a trap composed of 42 places in 148 ms of which 40 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:10] [INFO ] Deduced a trap composed of 43 places in 171 ms of which 64 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:10] [INFO ] Deduced a trap composed of 43 places in 149 ms of which 33 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 6/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/219 variables, 0/88 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 218/437 variables, 219/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 38/345 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 1/346 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:10] [INFO ] Deduced a trap composed of 13 places in 92 ms of which 7 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/437 variables, 1/347 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/437 variables, 0/347 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 5/442 variables, 5/352 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/442 variables, 2/354 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/442 variables, 0/354 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/442 variables, 0/354 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 442/442 variables, and 354 constraints, problems are : Problem set: 0 solved, 1 unsolved in 7460 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 48/48 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 7948ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 130 ms.
Support contains 1 out of 224 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 6 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 224/224 places, 218/218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 3 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
[2025-05-30 23:52:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:11] [INFO ] Implicit Places using invariants in 595 ms returned [43, 48, 69, 74, 94, 100, 121, 126, 146, 151, 172, 178]
[2025-05-30 23:52:11] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 600 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 222/224 places, 218/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 217
Applied a total of 2 rules in 11 ms. Remains 221 /222 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 221 cols
[2025-05-30 23:52:11] [INFO ] Computed 41 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:12] [INFO ] Implicit Places using invariants in 550 ms returned [66, 71, 91, 97, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:52:12] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 555 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 219/224 places, 217/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 216
Applied a total of 2 rules in 12 ms. Remains 218 /219 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 218 cols
[2025-05-30 23:52:12] [INFO ] Computed 39 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:12] [INFO ] Implicit Places using invariants in 497 ms returned [88, 94, 115, 120, 140, 145, 166, 172]
[2025-05-30 23:52:12] [INFO ] Actually due to overlaps returned [94, 88]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 499 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 216/224 places, 216/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 215
Applied a total of 2 rules in 10 ms. Remains 215 /216 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 215 cols
[2025-05-30 23:52:12] [INFO ] Computed 37 invariants in 18 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:13] [INFO ] Implicit Places using invariants in 432 ms returned [112, 117, 137, 142, 163, 169]
[2025-05-30 23:52:13] [INFO ] Actually due to overlaps returned [117, 112]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 437 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 213/224 places, 215/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 214
Applied a total of 2 rules in 7 ms. Remains 212 /213 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 212 cols
[2025-05-30 23:52:13] [INFO ] Computed 35 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:13] [INFO ] Implicit Places using invariants in 408 ms returned [134, 139, 160, 166]
[2025-05-30 23:52:13] [INFO ] Actually due to overlaps returned [139, 134]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 410 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 210/224 places, 214/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 210 transition count 213
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 209 transition count 213
Applied a total of 2 rules in 10 ms. Remains 209 /210 variables (removed 1) and now considering 213/214 (removed 1) transitions.
// Phase 1: matrix 213 rows 209 cols
[2025-05-30 23:52:13] [INFO ] Computed 33 invariants in 15 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:13] [INFO ] Implicit Places using invariants in 412 ms returned [157, 163]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 413 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 207/224 places, 213/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 207 transition count 212
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 206 transition count 212
Applied a total of 2 rules in 9 ms. Remains 206 /207 variables (removed 1) and now considering 212/213 (removed 1) transitions.
// Phase 1: matrix 212 rows 206 cols
[2025-05-30 23:52:13] [INFO ] Computed 31 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:14] [INFO ] Implicit Places using invariants in 352 ms returned []
[2025-05-30 23:52:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:14] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:52:16] [INFO ] Implicit Places using invariants and state equation in 2642 ms returned []
Implicit Place search using SMT with State Equation took 2996 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 206/224 places, 212/218 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5975 ms. Remains : 206/224 places, 212/218 transitions.
RANDOM walk for 40000 steps (5821 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3646 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 682088 steps, run timeout after 3001 ms. (steps per millisecond=227 ) properties seen :0 out of 1
Probabilistic random walk after 682088 steps, saw 341120 distinct states, run finished after 3001 ms. (steps per millisecond=227 ) properties seen :0
[2025-05-30 23:52:20] [INFO ] Invariant cache hit.
[2025-05-30 23:52:20] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 126/127 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/127 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/147 variables, 5/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:20] [INFO ] Deduced a trap composed of 69 places in 96 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:20] [INFO ] Deduced a trap composed of 69 places in 93 ms of which 15 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 2/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/147 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (OVERLAPS) 54/201 variables, 18/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/201 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 212/413 variables, 201/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/413 variables, 38/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:20] [INFO ] Deduced a trap composed of 15 places in 111 ms of which 11 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/413 variables, 1/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/413 variables, 0/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 5/418 variables, 5/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/418 variables, 2/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/418 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/418 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 278 constraints, problems are : Problem set: 0 solved, 1 unsolved in 657 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 126/127 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/127 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 20/147 variables, 5/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 2/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/147 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/201 variables, 18/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/201 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:20] [INFO ] Deduced a trap composed of 3 places in 107 ms of which 5 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/201 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/201 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 212/413 variables, 201/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/413 variables, 38/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 1/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:21] [INFO ] Deduced a trap composed of 16 places in 72 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:21] [INFO ] Deduced a trap composed of 13 places in 81 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:21] [INFO ] Deduced a trap composed of 10 places in 81 ms of which 5 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/413 variables, 3/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/413 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 5/418 variables, 5/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/418 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/418 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/418 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 418/418 variables, and 283 constraints, problems are : Problem set: 0 solved, 1 unsolved in 837 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 7/7 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1500ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 140 ms.
Support contains 1 out of 206 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 3 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 206/206 places, 212/212 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 206/206 places, 212/212 transitions.
Applied a total of 0 rules in 3 ms. Remains 206 /206 variables (removed 0) and now considering 212/212 (removed 0) transitions.
[2025-05-30 23:52:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:22] [INFO ] Implicit Places using invariants in 344 ms returned []
[2025-05-30 23:52:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:52:22] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:52:24] [INFO ] Implicit Places using invariants and state equation in 2654 ms returned []
Implicit Place search using SMT with State Equation took 3001 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:52:24] [INFO ] Redundant transitions in 1 ms returned []
Running 211 sub problems to find dead transitions.
[2025-05-30 23:52:24] [INFO ] Invariant cache hit.
[2025-05-30 23:52:24] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 8 (OVERLAPS) 0/418 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 275 constraints, problems are : Problem set: 0 solved, 211 unsolved in 13126 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 211/211 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/205 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/205 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/205 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 3 (OVERLAPS) 1/206 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/206 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 5 (OVERLAPS) 212/418 variables, 206/237 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/418 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 211 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/418 variables, 211/486 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:50] [INFO ] Deduced a trap composed of 29 places in 57 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:50] [INFO ] Deduced a trap composed of 4 places in 120 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:51] [INFO ] Deduced a trap composed of 3 places in 127 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:52] [INFO ] Deduced a trap composed of 13 places in 132 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:53] [INFO ] Deduced a trap composed of 48 places in 153 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:53] [INFO ] Deduced a trap composed of 49 places in 137 ms of which 28 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:53] [INFO ] Deduced a trap composed of 16 places in 96 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:53] [INFO ] Deduced a trap composed of 51 places in 117 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:53] [INFO ] Deduced a trap composed of 52 places in 123 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 52 places in 119 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 21 places in 98 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 22 places in 135 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 24 places in 137 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 25 places in 122 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:54] [INFO ] Deduced a trap composed of 28 places in 124 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:55] [INFO ] Deduced a trap composed of 56 places in 136 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:55] [INFO ] Deduced a trap composed of 56 places in 126 ms of which 38 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:55] [INFO ] Deduced a trap composed of 57 places in 122 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:55] [INFO ] Deduced a trap composed of 15 places in 70 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:52:55] [INFO ] Deduced a trap composed of 19 places in 48 ms of which 4 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/418 variables, 20/506 constraints. Problems are: Problem set: 0 solved, 211 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:06] [INFO ] Deduced a trap along path composed of 9 places in 63 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:07] [INFO ] Deduced a trap along path composed of 4 places in 64 ms of which 0 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 418/418 variables, and 508 constraints, problems are : Problem set: 0 solved, 211 unsolved in 30023 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 211/211 constraints, Known Traps: 20/20 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 43203ms problems are : Problem set: 0 solved, 211 unsolved
Search for dead transitions found 0 dead transitions in 43204ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46218 ms. Remains : 206/206 places, 212/212 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 17 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 17 Pre rules applied. Total rules applied 0 place count 206 transition count 195
Deduced a syphon composed of 17 places in 0 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 0 with 34 rules applied. Total rules applied 34 place count 189 transition count 195
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 43 place count 180 transition count 186
Iterating global reduction 0 with 9 rules applied. Total rules applied 52 place count 180 transition count 186
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 0 with 2 rules applied. Total rules applied 54 place count 179 transition count 185
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 179 transition count 183
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 177 transition count 183
Applied a total of 58 rules in 12 ms. Remains 177 /206 variables (removed 29) and now considering 183/212 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 183 rows 177 cols
[2025-05-30 23:53:07] [INFO ] Computed 31 invariants in 8 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:53:08] [INFO ] [Real]Absence check using 13 positive place invariants in 7 ms returned sat
[2025-05-30 23:53:08] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:53:08] [INFO ] After 87ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:53:08] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:53:08] [INFO ] After 9ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:08] [INFO ] Deduced a trap composed of 5 places in 106 ms of which 5 ms to minimize.
TRAPS : Iteration 1
[2025-05-30 23:53:08] [INFO ] After 140ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:53:08] [INFO ] After 315ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:53:08] [INFO ] [Nat]Absence check using 13 positive place invariants in 7 ms returned sat
[2025-05-30 23:53:08] [INFO ] [Nat]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:53:08] [INFO ] After 86ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:53:08] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:08] [INFO ] Deduced a trap composed of 5 places in 70 ms of which 4 ms to minimize.
[2025-05-30 23:53:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 84 ms
TRAPS : Iteration 1
[2025-05-30 23:53:08] [INFO ] After 110ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:53:08] [INFO ] After 260ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 602 ms.
RANDOM walk for 40000 steps (5741 resets) in 165 ms. (240 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3677 resets) in 86 ms. (459 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 671246 steps, run timeout after 3001 ms. (steps per millisecond=223 ) properties seen :0 out of 1
Probabilistic random walk after 671246 steps, saw 335698 distinct states, run finished after 3001 ms. (steps per millisecond=223 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:53:11] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:53:11] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:11] [INFO ] Deduced a trap composed of 3 places in 59 ms of which 4 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 414 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:12] [INFO ] Deduced a trap along path composed of 2 places in 25 ms of which 1 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 37/491 variables, 28/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 2/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/319 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:12] [INFO ] Deduced a trap composed of 4 places in 96 ms of which 5 ms to minimize.
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 325 constraints, problems are : Problem set: 0 solved, 1 unsolved in 753 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 1188ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 138 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 25 times.
Iterating global reduction 1 with 25 rules applied. Total rules applied 27 place count 251 transition count 220
Reduce places removed 25 places and 0 transitions.
Iterating post reduction 1 with 25 rules applied. Total rules applied 52 place count 226 transition count 220
Partial Free-agglomeration rule applied 27 times.
Drop transitions (Partial Free agglomeration) removed 27 transitions
Iterating global reduction 2 with 27 rules applied. Total rules applied 79 place count 226 transition count 220
Applied a total of 79 rules in 13 ms. Remains 226 /252 variables (removed 26) and now considering 220/246 (removed 26) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 226/252 places, 220/246 transitions.
RANDOM walk for 40000 steps (5812 resets) in 137 ms. (289 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3652 resets) in 84 ms. (470 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 698369 steps, run timeout after 3001 ms. (steps per millisecond=232 ) properties seen :0 out of 1
Probabilistic random walk after 698369 steps, saw 349257 distinct states, run finished after 3002 ms. (steps per millisecond=232 ) properties seen :0
// Phase 1: matrix 220 rows 226 cols
[2025-05-30 23:53:16] [INFO ] Computed 43 invariants in 18 ms
[2025-05-30 23:53:16] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 43/44 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 133/177 variables, 25/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 44/221 variables, 15/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:16] [INFO ] Deduced a trap composed of 4 places in 123 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:16] [INFO ] Deduced a trap composed of 6 places in 131 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:16] [INFO ] Deduced a trap composed of 7 places in 107 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:16] [INFO ] Deduced a trap composed of 7 places in 122 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:16] [INFO ] Deduced a trap composed of 9 places in 115 ms of which 9 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 220/441 variables, 221/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/441 variables, 38/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 0/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 5/446 variables, 5/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/446 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/446 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/446 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 446/446 variables, and 312 constraints, problems are : Problem set: 0 solved, 1 unsolved in 982 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 226/226 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 43/44 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 133/177 variables, 25/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 44/221 variables, 15/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 5/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 10 places in 130 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 10 places in 128 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 13 places in 129 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 15 places in 131 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 16 places in 134 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:17] [INFO ] Deduced a trap composed of 19 places in 133 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:18] [INFO ] Deduced a trap composed of 42 places in 159 ms of which 53 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:18] [INFO ] Deduced a trap composed of 21 places in 139 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:18] [INFO ] Deduced a trap composed of 16 places in 119 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:18] [INFO ] Deduced a trap composed of 43 places in 195 ms of which 75 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 10/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/221 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 220/441 variables, 221/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/441 variables, 38/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/441 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/441 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/446 variables, 5/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/446 variables, 2/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/446 variables, 0/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/446 variables, 0/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 446/446 variables, and 323 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1931 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 40/40 constraints, State Equation: 226/226 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 15/15 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2950ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 129 ms.
Support contains 1 out of 226 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 226/226 places, 220/220 transitions.
Applied a total of 0 rules in 3 ms. Remains 226 /226 variables (removed 0) and now considering 220/220 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 226/226 places, 220/220 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 226/226 places, 220/220 transitions.
Applied a total of 0 rules in 4 ms. Remains 226 /226 variables (removed 0) and now considering 220/220 (removed 0) transitions.
[2025-05-30 23:53:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:19] [INFO ] Implicit Places using invariants in 666 ms returned [43, 48, 70, 75, 96, 102, 123, 128, 148, 153, 174, 180]
[2025-05-30 23:53:19] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 667 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 224/226 places, 220/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 224 transition count 219
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 223 transition count 219
Applied a total of 2 rules in 11 ms. Remains 223 /224 variables (removed 1) and now considering 219/220 (removed 1) transitions.
// Phase 1: matrix 219 rows 223 cols
[2025-05-30 23:53:19] [INFO ] Computed 41 invariants in 15 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:20] [INFO ] Implicit Places using invariants in 558 ms returned [67, 72, 93, 99, 120, 125, 145, 150, 171, 177]
[2025-05-30 23:53:20] [INFO ] Actually due to overlaps returned [72, 67]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 560 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 221/226 places, 219/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 221 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 220 transition count 218
Applied a total of 2 rules in 11 ms. Remains 220 /221 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 220 cols
[2025-05-30 23:53:20] [INFO ] Computed 39 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:20] [INFO ] Implicit Places using invariants in 501 ms returned [90, 96, 117, 122, 142, 147, 168, 174]
[2025-05-30 23:53:20] [INFO ] Actually due to overlaps returned [96, 90]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 504 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 218/226 places, 218/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 218 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 217 transition count 217
Applied a total of 2 rules in 8 ms. Remains 217 /218 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 217 cols
[2025-05-30 23:53:20] [INFO ] Computed 37 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:21] [INFO ] Implicit Places using invariants in 421 ms returned [114, 119, 139, 144, 165, 171]
[2025-05-30 23:53:21] [INFO ] Actually due to overlaps returned [119, 114]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 422 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 215/226 places, 217/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 215 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 214 transition count 216
Applied a total of 2 rules in 8 ms. Remains 214 /215 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 214 cols
[2025-05-30 23:53:21] [INFO ] Computed 35 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:21] [INFO ] Implicit Places using invariants in 368 ms returned [136, 141, 162, 168]
[2025-05-30 23:53:21] [INFO ] Actually due to overlaps returned [141, 136]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 369 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 212/226 places, 216/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 212 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 211 transition count 215
Applied a total of 2 rules in 11 ms. Remains 211 /212 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 211 cols
[2025-05-30 23:53:21] [INFO ] Computed 33 invariants in 11 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:22] [INFO ] Implicit Places using invariants in 378 ms returned [159, 165]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 379 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 209/226 places, 215/220 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 209 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 208 transition count 214
Applied a total of 2 rules in 13 ms. Remains 208 /209 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 208 cols
[2025-05-30 23:53:22] [INFO ] Computed 31 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:22] [INFO ] Implicit Places using invariants in 357 ms returned []
[2025-05-30 23:53:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:22] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:53:25] [INFO ] Implicit Places using invariants and state equation in 3229 ms returned []
Implicit Place search using SMT with State Equation took 3588 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 208/226 places, 214/220 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 6555 ms. Remains : 208/226 places, 214/220 transitions.
RANDOM walk for 40000 steps (5805 resets) in 121 ms. (327 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3624 resets) in 77 ms. (512 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 655028 steps, run timeout after 3001 ms. (steps per millisecond=218 ) properties seen :0 out of 1
Probabilistic random walk after 655028 steps, saw 327588 distinct states, run finished after 3003 ms. (steps per millisecond=218 ) properties seen :0
[2025-05-30 23:53:28] [INFO ] Invariant cache hit.
[2025-05-30 23:53:28] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 88/89 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/89 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/149 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:28] [INFO ] Deduced a trap composed of 85 places in 91 ms of which 8 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/149 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/149 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/203 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:29] [INFO ] Deduced a trap composed of 4 places in 104 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:29] [INFO ] Deduced a trap composed of 7 places in 103 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:29] [INFO ] Deduced a trap composed of 9 places in 100 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:29] [INFO ] Deduced a trap composed of 10 places in 92 ms of which 7 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 4/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/203 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 214/417 variables, 203/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/417 variables, 0/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 5/422 variables, 5/280 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/422 variables, 2/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/422 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/422 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 282 constraints, problems are : Problem set: 0 solved, 1 unsolved in 797 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 88/89 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/89 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/149 variables, 6/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/149 variables, 1/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/149 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/203 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 4/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/203 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 214/417 variables, 203/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 38/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/417 variables, 1/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/417 variables, 0/276 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/422 variables, 5/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/422 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/422 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/422 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 422/422 variables, and 283 constraints, problems are : Problem set: 0 solved, 1 unsolved in 362 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1165ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 150 ms.
Support contains 1 out of 208 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 208/208 places, 214/214 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
[2025-05-30 23:53:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:30] [INFO ] Implicit Places using invariants in 351 ms returned []
[2025-05-30 23:53:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:53:30] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:53:33] [INFO ] Implicit Places using invariants and state equation in 3214 ms returned []
Implicit Place search using SMT with State Equation took 3572 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:53:33] [INFO ] Redundant transitions in 0 ms returned []
Running 213 sub problems to find dead transitions.
[2025-05-30 23:53:33] [INFO ] Invariant cache hit.
[2025-05-30 23:53:33] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 8 (OVERLAPS) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 277 constraints, problems are : Problem set: 0 solved, 213 unsolved in 14891 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 213/490 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:59] [INFO ] Deduced a trap composed of 19 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:53:59] [INFO ] Deduced a trap composed of 34 places in 38 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:02] [INFO ] Deduced a trap composed of 4 places in 88 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:03] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:04] [INFO ] Deduced a trap composed of 18 places in 67 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:04] [INFO ] Deduced a trap composed of 22 places in 66 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:04] [INFO ] Deduced a trap composed of 23 places in 68 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:05] [INFO ] Deduced a trap composed of 26 places in 55 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:05] [INFO ] Deduced a trap composed of 27 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:06] [INFO ] Deduced a trap composed of 29 places in 67 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:06] [INFO ] Deduced a trap composed of 30 places in 68 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:07] [INFO ] Deduced a trap composed of 38 places in 135 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:08] [INFO ] Deduced a trap composed of 61 places in 123 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:08] [INFO ] Deduced a trap composed of 62 places in 120 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:08] [INFO ] Deduced a trap composed of 60 places in 115 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:09] [INFO ] Deduced a trap composed of 16 places in 70 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:10] [INFO ] Deduced a trap composed of 13 places in 71 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:11] [INFO ] Deduced a trap composed of 8 places in 88 ms of which 4 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/422 variables, 18/508 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 422/422 variables, and 508 constraints, problems are : Problem set: 0 solved, 213 unsolved in 30018 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 18/18 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 44968ms problems are : Problem set: 0 solved, 213 unsolved
Search for dead transitions found 0 dead transitions in 44969ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48554 ms. Remains : 208/208 places, 214/214 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 208 transition count 196
Deduced a syphon composed of 18 places in 0 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 190 transition count 196
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 45 place count 181 transition count 187
Iterating global reduction 0 with 9 rules applied. Total rules applied 54 place count 181 transition count 187
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 0 with 2 rules applied. Total rules applied 56 place count 180 transition count 186
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 58 place count 180 transition count 184
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 60 place count 178 transition count 184
Applied a total of 60 rules in 10 ms. Remains 178 /208 variables (removed 30) and now considering 184/214 (removed 30) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 184 rows 178 cols
[2025-05-30 23:54:18] [INFO ] Computed 31 invariants in 8 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:54:18] [INFO ] [Real]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:54:18] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:54:18] [INFO ] After 87ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:54:18] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:54:18] [INFO ] After 8ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-30 23:54:18] [INFO ] After 52ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2025-05-30 23:54:18] [INFO ] After 199ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 220 ms.
RANDOM walk for 40000 steps (5777 resets) in 145 ms. (273 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3694 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 651854 steps, run timeout after 3001 ms. (steps per millisecond=217 ) properties seen :0 out of 1
Probabilistic random walk after 651854 steps, saw 326005 distinct states, run finished after 3001 ms. (steps per millisecond=217 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:54:21] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:54:21] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 2/493 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/493 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 5/498 variables, 4/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 1 unsolved in 357 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:22] [INFO ] Deduced a trap composed of 3 places in 83 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:22] [INFO ] Deduced a trap along path composed of 2 places in 26 ms of which 0 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 37/491 variables, 28/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 2/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:22] [INFO ] Deduced a trap along path composed of 8 places in 21 ms of which 0 ms to minimize.
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/491 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 2/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/493 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 5/498 variables, 4/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:22] [INFO ] Deduced a trap composed of 12 places in 81 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:23] [INFO ] Deduced a trap composed of 13 places in 88 ms of which 7 ms to minimize.
At refinement iteration 25 (INCLUDED_ONLY) 0/498 variables, 2/327 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:23] [INFO ] Deduced a trap along path composed of 5 places in 36 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:23] [INFO ] Deduced a trap along path composed of 6 places in 34 ms of which 0 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:23] [INFO ] Deduced a trap along path composed of 8 places in 33 ms of which 0 ms to minimize.
At refinement iteration 26 (INCLUDED_ONLY) 0/498 variables, 3/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/498 variables, 0/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 0/498 variables, 0/330 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 330 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1019 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 5/5 constraints]
After SMT, in 1404ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 153 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 26 times.
Iterating global reduction 1 with 26 rules applied. Total rules applied 28 place count 251 transition count 219
Reduce places removed 26 places and 0 transitions.
Iterating post reduction 1 with 26 rules applied. Total rules applied 54 place count 225 transition count 219
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 79 place count 225 transition count 219
Applied a total of 79 rules in 23 ms. Remains 225 /252 variables (removed 27) and now considering 219/246 (removed 27) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 225/252 places, 219/246 transitions.
RANDOM walk for 40000 steps (5815 resets) in 153 ms. (259 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3668 resets) in 118 ms. (336 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 702256 steps, run timeout after 3001 ms. (steps per millisecond=234 ) properties seen :0 out of 1
Probabilistic random walk after 702256 steps, saw 351207 distinct states, run finished after 3002 ms. (steps per millisecond=233 ) properties seen :0
// Phase 1: matrix 219 rows 225 cols
[2025-05-30 23:54:26] [INFO ] Computed 43 invariants in 16 ms
[2025-05-30 23:54:26] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 136/137 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/137 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 2/139 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/139 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 79/218 variables, 31/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:26] [INFO ] Deduced a trap composed of 4 places in 131 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:26] [INFO ] Deduced a trap composed of 6 places in 119 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 7 places in 121 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 7 places in 117 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 10 places in 136 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 10 places in 133 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 13 places in 131 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 13 places in 128 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:27] [INFO ] Deduced a trap composed of 16 places in 121 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 16 places in 124 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 19 places in 134 ms of which 15 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 20 places in 75 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 23 places in 74 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 24 places in 71 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 25 places in 74 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 26 places in 73 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 26 places in 67 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 27 places in 76 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 41 places in 80 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 31 places in 67 ms of which 9 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/218 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:28] [INFO ] Deduced a trap composed of 22 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 44 places in 74 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 18 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 46 places in 78 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 42 places in 73 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 45 places in 65 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 47 places in 66 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 29 places in 65 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 29 places in 66 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 40 places in 74 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 43 places in 65 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 45 places in 67 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 41 places in 67 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:29] [INFO ] Deduced a trap composed of 44 places in 63 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 46 places in 60 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 26 places in 68 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 37 places in 69 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 38 places in 68 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 39 places in 70 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 40 places in 70 ms of which 6 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/218 variables, 20/80 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 41 places in 73 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 42 places in 72 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 42 places in 70 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 43 places in 67 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 44 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 37 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:30] [INFO ] Deduced a trap composed of 38 places in 64 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 39 places in 79 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 22 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 40 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 41 places in 64 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 42 places in 69 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 40 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 41 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:31] [INFO ] Deduced a trap composed of 42 places in 66 ms of which 6 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 15/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 2/220 variables, 1/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/220 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 219/439 variables, 220/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/439 variables, 38/354 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/439 variables, 0/354 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 5/444 variables, 5/359 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/444 variables, 2/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/444 variables, 0/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/444 variables, 0/361 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 444/444 variables, and 361 constraints, problems are : Problem set: 0 solved, 1 unsolved in 5276 ms.
Refiners :[Positive P Invariants (semi-flows): 11/11 constraints, Generalized P Invariants (flows): 32/32 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 55/55 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 136/137 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/137 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 2/139 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/139 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 79/218 variables, 31/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/218 variables, 55/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/218 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 2/220 variables, 1/96 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 9 places in 93 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 10 places in 88 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 15 places in 74 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 20 places in 71 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 37 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 38 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 39 places in 76 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 39 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 40 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 41 places in 71 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 39 places in 71 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:32] [INFO ] Deduced a trap composed of 38 places in 76 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 36 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 38 places in 72 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 39 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 37 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 38 places in 72 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 40 places in 78 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 39 places in 77 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 40 places in 76 ms of which 7 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/220 variables, 20/116 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 40 places in 76 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 40 places in 76 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 41 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 39 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:33] [INFO ] Deduced a trap composed of 40 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:34] [INFO ] Deduced a trap composed of 40 places in 69 ms of which 7 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/220 variables, 6/122 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/220 variables, 0/122 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 219/439 variables, 220/342 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/439 variables, 38/380 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/439 variables, 1/381 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:34] [INFO ] Deduced a trap composed of 3 places in 106 ms of which 5 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/439 variables, 1/382 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:34] [INFO ] Deduced a trap along path composed of 6 places in 36 ms of which 0 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/439 variables, 1/383 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/439 variables, 0/383 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 5/444 variables, 5/388 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/444 variables, 2/390 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/444 variables, 0/390 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 0/444 variables, 0/390 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 444/444 variables, and 390 constraints, problems are : Problem set: 0 solved, 1 unsolved in 3006 ms.
Refiners :[Positive P Invariants (semi-flows): 11/11 constraints, Generalized P Invariants (flows): 32/32 constraints, State Equation: 225/225 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 82/82 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 8308ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 169 ms.
Support contains 1 out of 225 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 4 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 225/225 places, 219/219 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 225/225 places, 219/219 transitions.
Applied a total of 0 rules in 4 ms. Remains 225 /225 variables (removed 0) and now considering 219/219 (removed 0) transitions.
[2025-05-30 23:54:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:35] [INFO ] Implicit Places using invariants in 635 ms returned [43, 48, 70, 75, 95, 101, 122, 127, 147, 152, 173, 179]
[2025-05-30 23:54:35] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 639 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 223/225 places, 219/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 223 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 222 transition count 218
Applied a total of 2 rules in 9 ms. Remains 222 /223 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 222 cols
[2025-05-30 23:54:35] [INFO ] Computed 41 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:36] [INFO ] Implicit Places using invariants in 527 ms returned [67, 72, 92, 98, 119, 124, 144, 149, 170, 176]
[2025-05-30 23:54:36] [INFO ] Actually due to overlaps returned [72, 67]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 528 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 220/225 places, 218/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 220 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 219 transition count 217
Applied a total of 2 rules in 10 ms. Remains 219 /220 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 219 cols
[2025-05-30 23:54:36] [INFO ] Computed 39 invariants in 15 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:36] [INFO ] Implicit Places using invariants in 483 ms returned [89, 95, 116, 121, 141, 146, 167, 173]
[2025-05-30 23:54:36] [INFO ] Actually due to overlaps returned [95, 89]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 484 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 217/225 places, 217/219 transitions.
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 217 transition count 217
Applied a total of 2 rules in 8 ms. Remains 217 /217 variables (removed 0) and now considering 217/217 (removed 0) transitions.
// Phase 1: matrix 217 rows 217 cols
[2025-05-30 23:54:36] [INFO ] Computed 37 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:37] [INFO ] Implicit Places using invariants in 432 ms returned [114, 119, 139, 144, 165, 171]
[2025-05-30 23:54:37] [INFO ] Actually due to overlaps returned [119, 114]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 433 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 215/225 places, 217/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 215 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 214 transition count 216
Applied a total of 2 rules in 10 ms. Remains 214 /215 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 214 cols
[2025-05-30 23:54:37] [INFO ] Computed 35 invariants in 16 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:37] [INFO ] Implicit Places using invariants in 381 ms returned [136, 141, 162, 168]
[2025-05-30 23:54:37] [INFO ] Actually due to overlaps returned [141, 136]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 382 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 212/225 places, 216/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 212 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 211 transition count 215
Applied a total of 2 rules in 9 ms. Remains 211 /212 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 211 cols
[2025-05-30 23:54:37] [INFO ] Computed 33 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:37] [INFO ] Implicit Places using invariants in 355 ms returned [159, 165]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 360 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 209/225 places, 215/219 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 209 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 208 transition count 214
Applied a total of 2 rules in 11 ms. Remains 208 /209 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 208 cols
[2025-05-30 23:54:37] [INFO ] Computed 31 invariants in 21 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:38] [INFO ] Implicit Places using invariants in 383 ms returned []
[2025-05-30 23:54:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:38] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:54:40] [INFO ] Implicit Places using invariants and state equation in 2447 ms returned []
Implicit Place search using SMT with State Equation took 2833 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 208/225 places, 214/219 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5724 ms. Remains : 208/225 places, 214/219 transitions.
RANDOM walk for 40000 steps (5784 resets) in 138 ms. (287 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3693 resets) in 72 ms. (547 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 687795 steps, run timeout after 3001 ms. (steps per millisecond=229 ) properties seen :0 out of 1
Probabilistic random walk after 687795 steps, saw 343971 distinct states, run finished after 3001 ms. (steps per millisecond=229 ) properties seen :0
[2025-05-30 23:54:43] [INFO ] Invariant cache hit.
[2025-05-30 23:54:43] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 128/129 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:43] [INFO ] Deduced a trap composed of 3 places in 67 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/129 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/129 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 20/149 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/149 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/203 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 214/417 variables, 203/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/417 variables, 38/271 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap composed of 19 places in 114 ms of which 13 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 1/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/417 variables, 0/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 5/422 variables, 5/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/422 variables, 2/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/422 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/422 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 279 constraints, problems are : Problem set: 0 solved, 1 unsolved in 480 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 128/129 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/129 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/129 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 20/149 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/149 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 54/203 variables, 18/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/203 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/203 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 214/417 variables, 203/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/417 variables, 38/272 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/417 variables, 1/273 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap composed of 16 places in 78 ms of which 6 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/417 variables, 1/274 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap along path composed of 5 places in 37 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap along path composed of 4 places in 35 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap along path composed of 5 places in 32 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:54:44] [INFO ] Deduced a trap along path composed of 4 places in 37 ms of which 1 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/417 variables, 4/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/417 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 5/422 variables, 5/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/422 variables, 2/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/422 variables, 0/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/422 variables, 0/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 422/422 variables, and 285 constraints, problems are : Problem set: 0 solved, 1 unsolved in 658 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 4/4 constraints]
After SMT, in 1143ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 177 ms.
Support contains 1 out of 208 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 208/208 places, 214/214 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 208/208 places, 214/214 transitions.
Applied a total of 0 rules in 3 ms. Remains 208 /208 variables (removed 0) and now considering 214/214 (removed 0) transitions.
[2025-05-30 23:54:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:45] [INFO ] Implicit Places using invariants in 345 ms returned []
[2025-05-30 23:54:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:54:45] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:54:47] [INFO ] Implicit Places using invariants and state equation in 2427 ms returned []
Implicit Place search using SMT with State Equation took 2784 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:54:47] [INFO ] Redundant transitions in 1 ms returned []
Running 213 sub problems to find dead transitions.
[2025-05-30 23:54:47] [INFO ] Invariant cache hit.
[2025-05-30 23:54:47] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 8 (OVERLAPS) 0/422 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
No progress, stopping.
After SMT solving in domain Real declared 422/422 variables, and 277 constraints, problems are : Problem set: 0 solved, 213 unsolved in 13878 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/207 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/207 variables, 18/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/207 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 3 (OVERLAPS) 1/208 variables, 11/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/208 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 5 (OVERLAPS) 214/422 variables, 208/239 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/422 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 213 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/422 variables, 213/490 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:12] [INFO ] Deduced a trap composed of 12 places in 81 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:12] [INFO ] Deduced a trap composed of 86 places in 93 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:13] [INFO ] Deduced a trap composed of 4 places in 95 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:13] [INFO ] Deduced a trap composed of 9 places in 92 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:14] [INFO ] Deduced a trap composed of 15 places in 69 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:14] [INFO ] Deduced a trap composed of 18 places in 65 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:14] [INFO ] Deduced a trap composed of 22 places in 63 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:14] [INFO ] Deduced a trap composed of 22 places in 58 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:14] [INFO ] Deduced a trap composed of 26 places in 58 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:15] [INFO ] Deduced a trap composed of 25 places in 49 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:15] [INFO ] Deduced a trap composed of 28 places in 47 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:15] [INFO ] Deduced a trap composed of 29 places in 49 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:17] [INFO ] Deduced a trap composed of 76 places in 99 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:17] [INFO ] Deduced a trap composed of 73 places in 101 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:18] [INFO ] Deduced a trap composed of 83 places in 96 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:18] [INFO ] Deduced a trap composed of 83 places in 97 ms of which 11 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/422 variables, 16/506 constraints. Problems are: Problem set: 0 solved, 213 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:30] [INFO ] Deduced a trap along path composed of 4 places in 54 ms of which 1 ms to minimize.
Error getting values : (error "ParserException while parsing response: ((s0 1)
(s1 0)
(s2 0)
(s3 0)
(s4 1)
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(s7 7)
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(s80 2)
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(s126 11)
(s127 2)
(s128 0)
(s129 0)
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(s145 1)
(s146 12)
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(s149 0)
(s150 1)
(s151 1)
(s152 0)
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(s154 0)
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(s157 0)
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(s159 0)
(s160 0)
(s161 0)
(s162 0)
(s163 0)
(s164 0)
(s165 0)
(s166 0)
(s167 0)
(s168 34)
(s169 2)
(s170 35)
(s171 2)
(s172 34)
(s173 1)
(s174 0)
(s175 0)
(s176 0)
(s177 0)
(s178 0)
(s179 0)
(s180 0)
(s181 0)
(s182 timeout
0) org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 422/422 variables, and 507 constraints, problems are : Problem set: 0 solved, 213 unsolved in 30018 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 208/208 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 213/213 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 43948ms problems are : Problem set: 0 solved, 213 unsolved
Search for dead transitions found 0 dead transitions in 43949ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46747 ms. Remains : 208/208 places, 214/214 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 17 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 17 Pre rules applied. Total rules applied 0 place count 208 transition count 197
Deduced a syphon composed of 17 places in 1 ms
Reduce places removed 17 places and 0 transitions.
Iterating global reduction 0 with 34 rules applied. Total rules applied 34 place count 191 transition count 197
Discarding 9 places :
Symmetric choice reduction at 0 with 9 rule applications. Total rules 43 place count 182 transition count 188
Iterating global reduction 0 with 9 rules applied. Total rules applied 52 place count 182 transition count 188
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 0 with 2 rules applied. Total rules applied 54 place count 181 transition count 187
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 181 transition count 185
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 179 transition count 185
Applied a total of 58 rules in 15 ms. Remains 179 /208 variables (removed 29) and now considering 185/214 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 185 rows 179 cols
[2025-05-30 23:55:31] [INFO ] Computed 31 invariants in 9 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:55:31] [INFO ] [Real]Absence check using 13 positive place invariants in 10 ms returned sat
[2025-05-30 23:55:31] [INFO ] [Real]Absence check using 13 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:55:32] [INFO ] After 98ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:55:32] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:55:32] [INFO ] After 8ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:32] [INFO ] Deduced a trap composed of 48 places in 118 ms of which 25 ms to minimize.
TRAPS : Iteration 1
[2025-05-30 23:55:32] [INFO ] After 153ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:55:32] [INFO ] After 322ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:55:32] [INFO ] [Nat]Absence check using 13 positive place invariants in 9 ms returned sat
[2025-05-30 23:55:32] [INFO ] [Nat]Absence check using 13 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:55:32] [INFO ] After 88ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:55:32] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:32] [INFO ] Deduced a trap composed of 46 places in 113 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:32] [INFO ] Deduced a trap composed of 47 places in 123 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:32] [INFO ] Deduced a trap composed of 19 places in 106 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:32] [INFO ] Deduced a trap composed of 16 places in 107 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 48 places in 112 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 48 places in 115 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 49 places in 116 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 46 places in 121 ms of which 27 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 47 places in 124 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 20 places in 108 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 48 places in 121 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:33] [INFO ] Deduced a trap composed of 47 places in 116 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 48 places in 128 ms of which 35 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 48 places in 123 ms of which 28 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 49 places in 104 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 49 places in 137 ms of which 44 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 49 places in 120 ms of which 27 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 50 places in 117 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:34] [INFO ] Deduced a trap composed of 50 places in 127 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 50 places in 112 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 52 places in 107 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 23 places in 103 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 51 places in 113 ms of which 23 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 53 places in 111 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 49 places in 145 ms of which 47 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 52 places in 122 ms of which 28 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:35] [INFO ] Deduced a trap composed of 53 places in 110 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 50 places in 121 ms of which 30 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 53 places in 121 ms of which 40 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 54 places in 108 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 23 places in 106 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 51 places in 114 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 51 places in 113 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:36] [INFO ] Deduced a trap composed of 55 places in 123 ms of which 32 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 55 places in 117 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 52 places in 110 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 52 places in 122 ms of which 29 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 56 places in 109 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 56 places in 119 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 53 places in 107 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 54 places in 103 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:37] [INFO ] Deduced a trap composed of 54 places in 104 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 54 places in 103 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 57 places in 100 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 57 places in 100 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 57 places in 116 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 58 places in 109 ms of which 21 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 58 places in 105 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:38] [INFO ] Deduced a trap composed of 58 places in 107 ms of which 23 ms to minimize.
[2025-05-30 23:55:38] [INFO ] Trap strengthening (SAT) tested/added 50/49 trap constraints in 6339 ms
TRAPS : Iteration 1
[2025-05-30 23:55:38] [INFO ] After 6381ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:55:38] [INFO ] After 6545ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 6895 ms.
RANDOM walk for 40000 steps (5745 resets) in 123 ms. (322 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3672 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 686021 steps, run timeout after 3001 ms. (steps per millisecond=228 ) properties seen :0 out of 1
Probabilistic random walk after 686021 steps, saw 343085 distinct states, run finished after 3001 ms. (steps per millisecond=228 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:55:41] [INFO ] Computed 43 invariants in 13 ms
[2025-05-30 23:55:41] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 28/218 variables, 9/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/218 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 236/454 variables, 218/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/454 variables, 24/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 37/491 variables, 28/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/491 variables, 2/311 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/491 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 2/493 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/493 variables, 2/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/493 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 5/498 variables, 4/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/498 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 0/498 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 321 constraints, problems are : Problem set: 0 solved, 1 unsolved in 300 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 32/33 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/33 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 88/121 variables, 12/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:42] [INFO ] Deduced a trap composed of 3 places in 72 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:42] [INFO ] Deduced a trap along path composed of 2 places in 31 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:42] [INFO ] Deduced a trap along path composed of 2 places in 20 ms of which 0 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/454 variables, 2/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 0/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 37/491 variables, 28/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/491 variables, 2/314 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 498/498 variables, and 325 constraints, problems are : Problem set: 0 solved, 1 unsolved in 523 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 843ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 182 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 24 times.
Iterating global reduction 1 with 24 rules applied. Total rules applied 26 place count 251 transition count 221
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 1 with 24 rules applied. Total rules applied 50 place count 227 transition count 221
Partial Free-agglomeration rule applied 26 times.
Drop transitions (Partial Free agglomeration) removed 26 transitions
Iterating global reduction 2 with 26 rules applied. Total rules applied 76 place count 227 transition count 221
Applied a total of 76 rules in 11 ms. Remains 227 /252 variables (removed 25) and now considering 221/246 (removed 25) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 227/252 places, 221/246 transitions.
RANDOM walk for 40000 steps (5720 resets) in 140 ms. (283 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3591 resets) in 74 ms. (533 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 711043 steps, run timeout after 3001 ms. (steps per millisecond=236 ) properties seen :0 out of 1
Probabilistic random walk after 711043 steps, saw 355604 distinct states, run finished after 3001 ms. (steps per millisecond=236 ) properties seen :0
// Phase 1: matrix 221 rows 227 cols
[2025-05-30 23:55:45] [INFO ] Computed 43 invariants in 15 ms
[2025-05-30 23:55:45] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 86/87 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/87 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 111/198 variables, 24/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 4 places in 105 ms of which 6 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/198 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 24/222 variables, 9/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 6 places in 110 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 7 places in 104 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 10 places in 108 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 10 places in 105 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 13 places in 100 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:46] [INFO ] Deduced a trap composed of 13 places in 95 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 16 places in 78 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 20 places in 73 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 20 places in 76 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 22 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 24 places in 68 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 25 places in 70 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 35 places in 72 ms of which 6 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/222 variables, 14/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/222 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 221/443 variables, 222/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/443 variables, 38/316 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:47] [INFO ] Deduced a trap composed of 3 places in 109 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/443 variables, 1/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/443 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/448 variables, 5/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/448 variables, 2/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (INCLUDED_ONLY) 0/448 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/448 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 448/448 variables, and 324 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1965 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 86/87 variables, 8/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/87 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/87 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 111/198 variables, 24/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/198 variables, 13/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/198 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 24/222 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/222 variables, 2/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/222 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 221/443 variables, 222/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/443 variables, 38/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/443 variables, 1/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/443 variables, 0/318 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/448 variables, 5/323 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/448 variables, 2/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/448 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/448 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 448/448 variables, and 325 constraints, problems are : Problem set: 0 solved, 1 unsolved in 423 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 227/227 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 16/16 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2409ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 166 ms.
Support contains 1 out of 227 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 3 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 227/227 places, 221/221 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 227/227 places, 221/221 transitions.
Applied a total of 0 rules in 3 ms. Remains 227 /227 variables (removed 0) and now considering 221/221 (removed 0) transitions.
[2025-05-30 23:55:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:48] [INFO ] Implicit Places using invariants in 439 ms returned [43, 48, 69, 96, 102, 124, 129, 149, 154, 175, 181]
[2025-05-30 23:55:48] [INFO ] Actually due to overlaps returned [102, 48, 43, 96]
Discarding 4 places :
Implicit Place search using SMT only with invariants took 441 ms to find 4 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 223/227 places, 221/221 transitions.
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 223 transition count 219
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 4 place count 221 transition count 219
Applied a total of 4 rules in 8 ms. Remains 221 /223 variables (removed 2) and now considering 219/221 (removed 2) transitions.
// Phase 1: matrix 219 rows 221 cols
[2025-05-30 23:55:48] [INFO ] Computed 39 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:49] [INFO ] Implicit Places using invariants in 414 ms returned [66, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:55:49] [INFO ] Actually due to overlaps returned [123, 66, 118]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 415 ms to find 3 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 218/227 places, 219/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 218 transition count 218
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 217 transition count 218
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 217 transition count 218
Applied a total of 3 rules in 12 ms. Remains 217 /218 variables (removed 1) and now considering 218/219 (removed 1) transitions.
// Phase 1: matrix 218 rows 217 cols
[2025-05-30 23:55:49] [INFO ] Computed 36 invariants in 16 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:49] [INFO ] Implicit Places using invariants in 381 ms returned [139, 144, 165, 171]
[2025-05-30 23:55:49] [INFO ] Actually due to overlaps returned [144, 139]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 383 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 215/227 places, 218/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 215 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 214 transition count 217
Applied a total of 2 rules in 7 ms. Remains 214 /215 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 214 cols
[2025-05-30 23:55:49] [INFO ] Computed 34 invariants in 17 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:50] [INFO ] Implicit Places using invariants in 364 ms returned [162, 168]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 365 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 212/227 places, 217/221 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 212 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 211 transition count 216
Applied a total of 2 rules in 9 ms. Remains 211 /212 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 211 cols
[2025-05-30 23:55:50] [INFO ] Computed 32 invariants in 13 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:50] [INFO ] Implicit Places using invariants in 344 ms returned []
[2025-05-30 23:55:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:50] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:55:52] [INFO ] Implicit Places using invariants and state equation in 2345 ms returned []
Implicit Place search using SMT with State Equation took 2693 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 211/227 places, 216/221 transitions.
Finished structural reductions in REACHABILITY mode , in 5 iterations and 4339 ms. Remains : 211/227 places, 216/221 transitions.
RANDOM walk for 40000 steps (5704 resets) in 136 ms. (291 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (3684 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 651287 steps, run timeout after 3001 ms. (steps per millisecond=217 ) properties seen :0 out of 1
Probabilistic random walk after 651287 steps, saw 325712 distinct states, run finished after 3001 ms. (steps per millisecond=217 ) properties seen :0
[2025-05-30 23:55:55] [INFO ] Invariant cache hit.
[2025-05-30 23:55:55] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 103/104 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:56] [INFO ] Deduced a trap composed of 3 places in 60 ms of which 3 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/104 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/104 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 1/105 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 81/186 variables, 15/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:56] [INFO ] Deduced a trap composed of 4 places in 91 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:56] [INFO ] Deduced a trap composed of 6 places in 87 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:55:56] [INFO ] Deduced a trap composed of 7 places in 87 ms of which 6 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/186 variables, 3/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/186 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/206 variables, 7/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/206 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 216/422 variables, 206/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/422 variables, 38/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/422 variables, 0/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/427 variables, 5/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/427 variables, 2/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/427 variables, 0/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/427 variables, 0/285 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 427/427 variables, and 285 constraints, problems are : Problem set: 0 solved, 1 unsolved in 660 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 103/104 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/104 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/104 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 1/105 variables, 1/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/105 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 81/186 variables, 15/24 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/186 variables, 3/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/186 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 20/206 variables, 7/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/206 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 216/422 variables, 206/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/422 variables, 38/278 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/422 variables, 1/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/422 variables, 0/279 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 5/427 variables, 5/284 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/427 variables, 2/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/427 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/427 variables, 0/286 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 427/427 variables, and 286 constraints, problems are : Problem set: 0 solved, 1 unsolved in 345 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1015ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 197 ms.
Support contains 1 out of 211 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 211/211 places, 216/216 transitions.
Applied a total of 0 rules in 3 ms. Remains 211 /211 variables (removed 0) and now considering 216/216 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 211/211 places, 216/216 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 211/211 places, 216/216 transitions.
Applied a total of 0 rules in 2 ms. Remains 211 /211 variables (removed 0) and now considering 216/216 (removed 0) transitions.
[2025-05-30 23:55:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:57] [INFO ] Implicit Places using invariants in 321 ms returned []
[2025-05-30 23:55:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:55:57] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:55:59] [INFO ] Implicit Places using invariants and state equation in 2354 ms returned []
Implicit Place search using SMT with State Equation took 2677 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-05-30 23:55:59] [INFO ] Redundant transitions in 1 ms returned []
Running 215 sub problems to find dead transitions.
[2025-05-30 23:55:59] [INFO ] Invariant cache hit.
[2025-05-30 23:55:59] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/210 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/210 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/210 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/211 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/211 variables, 6/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/211 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 6 (OVERLAPS) 216/427 variables, 211/243 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/427 variables, 38/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/427 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 0/427 variables, 0/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
No progress, stopping.
After SMT solving in domain Real declared 427/427 variables, and 281 constraints, problems are : Problem set: 0 solved, 215 unsolved in 19042 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 215/215 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/210 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/210 variables, 23/25 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/210 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 3 (OVERLAPS) 1/211 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/211 variables, 6/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/211 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 6 (OVERLAPS) 216/427 variables, 211/243 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/427 variables, 38/281 constraints. Problems are: Problem set: 0 solved, 215 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/427 variables, 215/496 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:29] [INFO ] Deduced a trap composed of 33 places in 42 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:30] [INFO ] Deduced a trap composed of 4 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:31] [INFO ] Deduced a trap composed of 3 places in 93 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:33] [INFO ] Deduced a trap composed of 9 places in 89 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:33] [INFO ] Deduced a trap composed of 12 places in 94 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:33] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:34] [INFO ] Deduced a trap composed of 10 places in 86 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:34] [INFO ] Deduced a trap composed of 13 places in 91 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:34] [INFO ] Deduced a trap composed of 16 places in 91 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:34] [INFO ] Deduced a trap composed of 22 places in 97 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:35] [INFO ] Deduced a trap composed of 39 places in 113 ms of which 31 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:35] [INFO ] Deduced a trap composed of 32 places in 96 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:35] [INFO ] Deduced a trap composed of 30 places in 33 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:35] [INFO ] Deduced a trap composed of 28 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:36] [INFO ] Deduced a trap composed of 29 places in 116 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:36] [INFO ] Deduced a trap composed of 37 places in 111 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:37] [INFO ] Deduced a trap composed of 62 places in 108 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:37] [INFO ] Deduced a trap composed of 62 places in 98 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:37] [INFO ] Deduced a trap composed of 62 places in 108 ms of which 20 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:37] [INFO ] Deduced a trap composed of 63 places in 107 ms of which 20 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/427 variables, 20/516 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:44] [INFO ] Deduced a trap composed of 6 places in 104 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:44] [INFO ] Deduced a trap composed of 10 places in 92 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:44] [INFO ] Deduced a trap composed of 41 places in 115 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:45] [INFO ] Deduced a trap composed of 70 places in 102 ms of which 16 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/427 variables, 4/520 constraints. Problems are: Problem set: 0 solved, 215 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 427/427 variables, and 520 constraints, problems are : Problem set: 0 solved, 215 unsolved in 30029 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 29/29 constraints, State Equation: 211/211 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 215/215 constraints, Known Traps: 24/24 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 49115ms problems are : Problem set: 0 solved, 215 unsolved
Search for dead transitions found 0 dead transitions in 49116ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 51806 ms. Remains : 211/211 places, 216/216 transitions.
Attempting over-approximation, by ignoring read arcs.
Performed 18 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 18 Pre rules applied. Total rules applied 0 place count 211 transition count 198
Deduced a syphon composed of 18 places in 1 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 36 place count 193 transition count 198
Discarding 8 places :
Symmetric choice reduction at 0 with 8 rule applications. Total rules 44 place count 185 transition count 190
Iterating global reduction 0 with 8 rules applied. Total rules applied 52 place count 185 transition count 190
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 0 with 2 rules applied. Total rules applied 54 place count 184 transition count 189
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 0 with 2 rules applied. Total rules applied 56 place count 184 transition count 187
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 58 place count 182 transition count 187
Applied a total of 58 rules in 10 ms. Remains 182 /211 variables (removed 29) and now considering 187/216 (removed 29) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 187 rows 182 cols
[2025-05-30 23:56:48] [INFO ] Computed 32 invariants in 13 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:56:49] [INFO ] [Real]Absence check using 14 positive place invariants in 11 ms returned sat
[2025-05-30 23:56:49] [INFO ] [Real]Absence check using 14 positive and 18 generalized place invariants in 4 ms returned sat
[2025-05-30 23:56:49] [INFO ] After 93ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2025-05-30 23:56:49] [INFO ] State equation strengthened by 1 read => feed constraints.
[2025-05-30 23:56:49] [INFO ] After 7ms SMT Verify possible using 1 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:49] [INFO ] Deduced a trap composed of 5 places in 96 ms of which 4 ms to minimize.
TRAPS : Iteration 1
[2025-05-30 23:56:49] [INFO ] After 127ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-30 23:56:49] [INFO ] After 289ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2025-05-30 23:56:49] [INFO ] [Nat]Absence check using 14 positive place invariants in 10 ms returned sat
[2025-05-30 23:56:49] [INFO ] [Nat]Absence check using 14 positive and 18 generalized place invariants in 3 ms returned sat
[2025-05-30 23:56:49] [INFO ] After 86ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2025-05-30 23:56:49] [INFO ] After 8ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:49] [INFO ] Deduced a trap composed of 5 places in 86 ms of which 4 ms to minimize.
[2025-05-30 23:56:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 109 ms
TRAPS : Iteration 1
[2025-05-30 23:56:49] [INFO ] After 137ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-30 23:56:49] [INFO ] After 294ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 611 ms.
RANDOM walk for 40000 steps (5739 resets) in 143 ms. (277 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3757 resets) in 88 ms. (449 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 661298 steps, run timeout after 3001 ms. (steps per millisecond=220 ) properties seen :0 out of 1
Probabilistic random walk after 661298 steps, saw 330724 distinct states, run finished after 3001 ms. (steps per millisecond=220 ) properties seen :0
// Phase 1: matrix 246 rows 252 cols
[2025-05-30 23:56:52] [INFO ] Computed 43 invariants in 16 ms
[2025-05-30 23:56:52] [INFO ] State equation strengthened by 26 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 33/39 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 82/121 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:52] [INFO ] Deduced a trap composed of 3 places in 68 ms of which 4 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 0/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 37/491 variables, 28/310 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/491 variables, 2/312 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/491 variables, 1/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/491 variables, 0/313 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 2/493 variables, 2/315 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/493 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/493 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/498 variables, 4/321 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/498 variables, 1/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/498 variables, 0/322 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 498/498 variables, and 322 constraints, problems are : Problem set: 0 solved, 1 unsolved in 330 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 41/41 constraints, State Equation: 252/252 constraints, ReadFeed: 26/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 33/39 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 82/121 variables, 10/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/121 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 69/190 variables, 15/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 1/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/218 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/218 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 236/454 variables, 218/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/454 variables, 24/282 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/454 variables, 1/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/454 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 491/498 variables, and 311 constraints, problems are : Problem set: 0 solved, 1 unsolved in 831 ms.
Refiners :[Positive P Invariants (semi-flows): 0/2 constraints, Generalized P Invariants (flows): 39/41 constraints, State Equation: 246/252 constraints, ReadFeed: 24/26 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1183ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 32 ms.
Support contains 1 out of 252 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 252/252 places, 246/246 transitions.
Graph (complete) has 834 edges and 252 vertex of which 251 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 251 transition count 245
Free-agglomeration rule (complex) applied 27 times.
Iterating global reduction 1 with 27 rules applied. Total rules applied 29 place count 251 transition count 218
Reduce places removed 27 places and 0 transitions.
Iterating post reduction 1 with 27 rules applied. Total rules applied 56 place count 224 transition count 218
Partial Free-agglomeration rule applied 25 times.
Drop transitions (Partial Free agglomeration) removed 25 transitions
Iterating global reduction 2 with 25 rules applied. Total rules applied 81 place count 224 transition count 218
Applied a total of 81 rules in 13 ms. Remains 224 /252 variables (removed 28) and now considering 218/246 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 224/252 places, 218/246 transitions.
RANDOM walk for 40000 steps (5791 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (3678 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 673378 steps, run timeout after 3001 ms. (steps per millisecond=224 ) properties seen :0 out of 1
Probabilistic random walk after 673378 steps, saw 336765 distinct states, run finished after 3001 ms. (steps per millisecond=224 ) properties seen :0
// Phase 1: matrix 218 rows 224 cols
[2025-05-30 23:56:56] [INFO ] Computed 43 invariants in 17 ms
[2025-05-30 23:56:56] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 124/130 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:57] [INFO ] Deduced a trap composed of 109 places in 83 ms of which 8 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 12/142 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/142 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 77/219 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:57] [INFO ] Deduced a trap composed of 3 places in 119 ms of which 5 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/219 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 218/437 variables, 219/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 38/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 5/442 variables, 5/305 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/442 variables, 2/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/442 variables, 0/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 442/442 variables, and 307 constraints, problems are : Problem set: 0 solved, 1 unsolved in 477 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 124/130 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/130 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/130 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 12/142 variables, 3/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/142 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 77/219 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/219 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/219 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 218/437 variables, 219/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/437 variables, 38/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/437 variables, 1/301 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:56:57] [INFO ] Deduced a trap composed of 6 places in 108 ms of which 6 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/437 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/437 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 5/442 variables, 5/307 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/442 variables, 2/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/442 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 0/442 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 442/442 variables, and 309 constraints, problems are : Problem set: 0 solved, 1 unsolved in 652 ms.
Refiners :[Positive P Invariants (semi-flows): 7/7 constraints, Generalized P Invariants (flows): 36/36 constraints, State Equation: 224/224 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1149ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 43 ms.
Support contains 1 out of 224 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 3 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 224/224 places, 218/218 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 224/224 places, 218/218 transitions.
Applied a total of 0 rules in 4 ms. Remains 224 /224 variables (removed 0) and now considering 218/218 (removed 0) transitions.
[2025-05-30 23:56:58] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:56:58] [INFO ] Implicit Places using invariants in 573 ms returned [43, 48, 69, 74, 94, 100, 121, 126, 146, 151, 172, 178]
[2025-05-30 23:56:58] [INFO ] Actually due to overlaps returned [48, 43]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 590 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 222/224 places, 218/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 222 transition count 217
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 221 transition count 217
Applied a total of 2 rules in 12 ms. Remains 221 /222 variables (removed 1) and now considering 217/218 (removed 1) transitions.
// Phase 1: matrix 217 rows 221 cols
[2025-05-30 23:56:58] [INFO ] Computed 41 invariants in 6 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:56:59] [INFO ] Implicit Places using invariants in 514 ms returned [66, 71, 91, 97, 118, 123, 143, 148, 169, 175]
[2025-05-30 23:56:59] [INFO ] Actually due to overlaps returned [71, 66]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 526 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 219/224 places, 217/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 219 transition count 216
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 218 transition count 216
Applied a total of 2 rules in 7 ms. Remains 218 /219 variables (removed 1) and now considering 216/217 (removed 1) transitions.
// Phase 1: matrix 216 rows 218 cols
[2025-05-30 23:56:59] [INFO ] Computed 39 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:56:59] [INFO ] Implicit Places using invariants in 454 ms returned [88, 94, 115, 120, 140, 145, 166, 172]
[2025-05-30 23:56:59] [INFO ] Actually due to overlaps returned [94, 88]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 456 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 216/224 places, 216/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 216 transition count 215
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 215 transition count 215
Applied a total of 2 rules in 8 ms. Remains 215 /216 variables (removed 1) and now considering 215/216 (removed 1) transitions.
// Phase 1: matrix 215 rows 215 cols
[2025-05-30 23:56:59] [INFO ] Computed 37 invariants in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:57:00] [INFO ] Implicit Places using invariants in 377 ms returned [112, 117, 137, 142, 163, 169]
[2025-05-30 23:57:00] [INFO ] Actually due to overlaps returned [117, 112]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 394 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 4 : 213/224 places, 215/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 213 transition count 214
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 212 transition count 214
Applied a total of 2 rules in 8 ms. Remains 212 /213 variables (removed 1) and now considering 214/215 (removed 1) transitions.
// Phase 1: matrix 214 rows 212 cols
[2025-05-30 23:57:00] [INFO ] Computed 35 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:57:00] [INFO ] Implicit Places using invariants in 381 ms returned [134, 139, 160, 166]
[2025-05-30 23:57:00] [INFO ] Actually due to overlaps returned [139, 134]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 395 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 5 : 210/224 places, 214/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 210 transition count 213
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 209 transition count 213
Applied a total of 2 rules in 6 ms. Remains 209 /210 variables (removed 1) and now considering 213/214 (removed 1) transitions.
// Phase 1: matrix 213 rows 209 cols
[2025-05-30 23:57:00] [INFO ] Computed 33 invariants in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:57:00] [INFO ] Implicit Places using invariants in 370 ms returned [157, 163]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 381 ms to find 2 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 6 : 207/224 places, 213/218 transitions.
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 207 transition count 212
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 206 transition count 212
Applied a total of 2 rules in 6 ms. Remains 206 /207 variables (removed 1) and now considering 212/213 (removed 1) transitions.
// Phase 1: matrix 212 rows 206 cols
[2025-05-30 23:57:00] [INFO ] Computed 31 invariants in 9 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:57:01] [INFO ] Implicit Places using invariants in 327 ms returned []
[2025-05-30 23:57:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-30 23:57:01] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-05-30 23:57:03] [INFO ] Implicit Places using invariants and state equation in 2056 ms returned []
Implicit Place search using SMT with State Equation took 2420 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 7 : 206/224 places, 212/218 transitions.
Finished structural reductions in REACHABILITY mode , in 7 iterations and 5223 ms. Remains : 206/224 places, 212/218 transitions.
RANDOM walk for 40000 steps (5736 resets) in 192 ms. (207 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (3656 resets) in 92 ms. (430 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 649352 steps, run timeout after 3001 ms. (steps per millisecond=216 ) properties seen :0 out of 1
Probabilistic random walk after 649352 steps, saw 324751 distinct states, run finished after 3001 ms. (steps per millisecond=216 ) properties seen :0
[2025-05-30 23:57:06] [INFO ] Invariant cache hit.
[2025-05-30 23:57:06] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 125/131 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/131 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 20/151 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 50/201 variables, 17/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:06] [INFO ] Deduced a trap composed of 4 places in 126 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:06] [INFO ] Deduced a trap composed of 7 places in 124 ms of which 7 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/201 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 212/413 variables, 201/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/413 variables, 38/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 5/418 variables, 5/275 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/418 variables, 2/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/418 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 418/418 variables, and 277 constraints, problems are : Problem set: 0 solved, 1 unsolved in 567 ms.
Refiners :[Positive P Invariants (semi-flows): 13/13 constraints, Generalized P Invariants (flows): 18/18 constraints, State Equation: 206/206 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 5/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 125/131 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/131 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 20/151 variables, 5/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 50/201 variables, 17/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/201 variables, 2/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 10 places in 141 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 15 places in 132 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 16 places in 124 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 17 places in 130 ms of which 24 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 19 places in 149 ms of which 16 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:07] [INFO ] Deduced a trap composed of 20 places in 133 ms of which 14 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-05-30 23:57:08] [INFO ] Deduced a trap composed of 52 places in 151 ms of which 18 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/201 variables, 7/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/201 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 212/413 variables, 201/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/413 variables, 38/277 constraints. Problems are: Problem set: 0 solved, 1 unsolved

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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="DoubleExponent-PT-010"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is DoubleExponent-PT-010, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r077-tall-174860074700307"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleExponent-PT-010.tgz
mv DoubleExponent-PT-010 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;