Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994300421.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)
.............
=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is SieveSingleMsgMbox-PT-d1m18, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994300421
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 844K
-rw-r--r-- 1 mcc users 5.9K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 58K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 21K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.2K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 91K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 70K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 6 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 450K May 29 14:33 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-00
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-01
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-02
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-03
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-04
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-05
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-06
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-07
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-08
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-09
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-10
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-11
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-12
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-13
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-14
FORMULA_NAME SieveSingleMsgMbox-PT-d1m18-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749158557719

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SieveSingleMsgMbox-PT-d1m18
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-05 21:22:38] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-05 21:22:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-05 21:22:39] [INFO ] Load time of PNML (sax parser for PT used): 110 ms
[2025-06-05 21:22:39] [INFO ] Transformed 1295 places.
[2025-06-05 21:22:39] [INFO ] Transformed 749 transitions.
[2025-06-05 21:22:39] [INFO ] Parsed PT model containing 1295 places and 749 transitions and 2996 arcs in 199 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 1036 places in 8 ms
Reduce places removed 1036 places and 0 transitions.
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-01 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-04 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
// Phase 1: matrix 749 rows 259 cols
[2025-06-05 21:22:39] [INFO ] Computed 6 invariants in 25 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[29, 45, 1, 1]
RANDOM walk for 10000 steps (2192 resets) in 157 ms. (63 steps per ms)
BEST_FIRST walk for 40003 steps (3858 resets) in 240 ms. (165 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[29, 45, 1, 1]
[2025-06-05 21:22:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:39] [INFO ] [Real]Absence check using 3 positive place invariants in 11 ms returned sat
[2025-06-05 21:22:39] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2025-06-05 21:22:40] [INFO ] [Real]Absence check using state equation in 161 ms returned sat
[2025-06-05 21:22:40] [INFO ] State equation strengthened by 587 read => feed constraints.
[2025-06-05 21:22:40] [INFO ] [Real]Added 587 Read/Feed constraints in 117 ms returned sat
[2025-06-05 21:22:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:40] [INFO ] [Nat]Absence check using 3 positive place invariants in 22 ms returned sat
[2025-06-05 21:22:40] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:40] [INFO ] [Nat]Absence check using state equation in 153 ms returned sat
[2025-06-05 21:22:40] [INFO ] [Nat]Added 587 Read/Feed constraints in 147 ms returned sat
[2025-06-05 21:22:40] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 177 ms.
[2025-06-05 21:22:41] [INFO ] Added : 24 causal constraints over 6 iterations in 618 ms. Result :sat
Minimization took 559 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:41] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 21:22:41] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:42] [INFO ] [Real]Absence check using state equation in 140 ms returned sat
[2025-06-05 21:22:42] [INFO ] [Real]Added 587 Read/Feed constraints in 151 ms returned sat
[2025-06-05 21:22:42] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:42] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 21:22:42] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:42] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2025-06-05 21:22:42] [INFO ] [Nat]Added 587 Read/Feed constraints in 121 ms returned sat
[2025-06-05 21:22:42] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 113 ms.
[2025-06-05 21:22:42] [INFO ] Added : 10 causal constraints over 2 iterations in 289 ms. Result :sat
Minimization took 564 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:43] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 21:22:43] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:43] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2025-06-05 21:22:43] [INFO ] [Real]Added 587 Read/Feed constraints in 86 ms returned sat
[2025-06-05 21:22:43] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:43] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:43] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:44] [INFO ] [Nat]Absence check using state equation in 133 ms returned sat
[2025-06-05 21:22:44] [INFO ] [Nat]Added 587 Read/Feed constraints in 88 ms returned sat
[2025-06-05 21:22:44] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 66 ms.
[2025-06-05 21:22:44] [INFO ] Added : 16 causal constraints over 4 iterations in 375 ms. Result :sat
Minimization took 579 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:45] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Real]Added 587 Read/Feed constraints in 85 ms returned sat
[2025-06-05 21:22:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:22:45] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Nat]Absence check using state equation in 129 ms returned sat
[2025-06-05 21:22:45] [INFO ] [Nat]Added 587 Read/Feed constraints in 81 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:22:45] [INFO ] Deduced a trap composed of 29 places in 154 ms of which 22 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:22:45] [INFO ] Deduced a trap composed of 29 places in 115 ms of which 11 ms to minimize.
[2025-06-05 21:22:46] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 400 ms
[2025-06-05 21:22:46] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 58 ms.
[2025-06-05 21:22:46] [INFO ] Added : 14 causal constraints over 3 iterations in 276 ms. Result :sat
Minimization took 560 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[29, 45, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[29, 45, 1, 1]
Support contains 4 out of 259 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 259/259 places, 749/749 transitions.
Graph (complete) has 1159 edges and 259 vertex of which 241 are kept as prefixes of interest. Removing 18 places using SCC suffix rule.4 ms
Discarding 18 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Ensure Unique test removed 240 transitions
Reduce isomorphic transitions removed 242 transitions.
Iterating post reduction 0 with 242 rules applied. Total rules applied 243 place count 241 transition count 507
Discarding 60 places :
Symmetric choice reduction at 1 with 60 rule applications. Total rules 303 place count 181 transition count 232
Iterating global reduction 1 with 60 rules applied. Total rules applied 363 place count 181 transition count 232
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 368 place count 181 transition count 227
Discarding 43 places :
Symmetric choice reduction at 2 with 43 rule applications. Total rules 411 place count 138 transition count 184
Iterating global reduction 2 with 43 rules applied. Total rules applied 454 place count 138 transition count 184
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 2 with 15 rules applied. Total rules applied 469 place count 138 transition count 169
Discarding 24 places :
Symmetric choice reduction at 3 with 24 rule applications. Total rules 493 place count 114 transition count 143
Iterating global reduction 3 with 24 rules applied. Total rules applied 517 place count 114 transition count 143
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 3 with 15 rules applied. Total rules applied 532 place count 114 transition count 128
Discarding 6 places :
Symmetric choice reduction at 4 with 6 rule applications. Total rules 538 place count 108 transition count 119
Iterating global reduction 4 with 6 rules applied. Total rules applied 544 place count 108 transition count 119
Discarding 6 places :
Symmetric choice reduction at 4 with 6 rule applications. Total rules 550 place count 102 transition count 113
Iterating global reduction 4 with 6 rules applied. Total rules applied 556 place count 102 transition count 113
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 559 place count 99 transition count 110
Iterating global reduction 4 with 3 rules applied. Total rules applied 562 place count 99 transition count 110
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 563 place count 99 transition count 109
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 565 place count 97 transition count 107
Iterating global reduction 5 with 2 rules applied. Total rules applied 567 place count 97 transition count 107
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 568 place count 96 transition count 106
Iterating global reduction 5 with 1 rules applied. Total rules applied 569 place count 96 transition count 106
Applied a total of 569 rules in 79 ms. Remains 96 /259 variables (removed 163) and now considering 106/749 (removed 643) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 88 ms. Remains : 96/259 places, 106/749 transitions.
// Phase 1: matrix 106 rows 96 cols
[2025-06-05 21:22:46] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[29, 18, 1, 1]
RANDOM walk for 1000000 steps (224314 resets) in 1056 ms. (946 steps per ms)
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 3000003 steps (311009 resets) in 1596 ms. (1878 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
[2025-06-05 21:22:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2025-06-05 21:22:49] [INFO ] State equation strengthened by 42 read => feed constraints.
[2025-06-05 21:22:49] [INFO ] [Real]Added 42 Read/Feed constraints in 5 ms returned sat
[2025-06-05 21:22:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Nat]Added 42 Read/Feed constraints in 8 ms returned sat
[2025-06-05 21:22:49] [INFO ] Computed and/alt/rep : 26/66/26 causal constraints (skipped 79 transitions) in 7 ms.
[2025-06-05 21:22:49] [INFO ] Added : 14 causal constraints over 3 iterations in 44 ms. Result :sat
Minimization took 41 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Real]Added 42 Read/Feed constraints in 10 ms returned sat
[2025-06-05 21:22:49] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:49] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Nat]Added 42 Read/Feed constraints in 8 ms returned sat
[2025-06-05 21:22:50] [INFO ] Computed and/alt/rep : 26/66/26 causal constraints (skipped 79 transitions) in 7 ms.
[2025-06-05 21:22:50] [INFO ] Added : 13 causal constraints over 4 iterations in 51 ms. Result :sat
Minimization took 65 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:50] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Real]Added 42 Read/Feed constraints in 6 ms returned sat
[2025-06-05 21:22:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:50] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Nat]Absence check using state equation in 26 ms returned sat
[2025-06-05 21:22:50] [INFO ] [Nat]Added 42 Read/Feed constraints in 8 ms returned sat
[2025-06-05 21:22:50] [INFO ] Computed and/alt/rep : 26/66/26 causal constraints (skipped 79 transitions) in 5 ms.
[2025-06-05 21:22:50] [INFO ] Added : 15 causal constraints over 4 iterations in 46 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
Support contains 3 out of 96 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 96/96 places, 106/106 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 95 transition count 105
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 95 transition count 105
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 3 place count 95 transition count 104
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 4 place count 94 transition count 103
Iterating global reduction 1 with 1 rules applied. Total rules applied 5 place count 94 transition count 103
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 93 transition count 102
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 93 transition count 102
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 8 place count 92 transition count 100
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 92 transition count 100
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 10 place count 91 transition count 99
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 91 transition count 99
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 12 place count 90 transition count 98
Iterating global reduction 1 with 1 rules applied. Total rules applied 13 place count 90 transition count 98
Applied a total of 13 rules in 18 ms. Remains 90 /96 variables (removed 6) and now considering 98/106 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 90/96 places, 98/106 transitions.
// Phase 1: matrix 98 rows 90 cols
[2025-06-05 21:22:50] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
RANDOM walk for 1000000 steps (224178 resets) in 985 ms. (1014 steps per ms)
BEST_FIRST walk for 3000000 steps (310736 resets) in 1435 ms. (2089 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
[2025-06-05 21:22:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:52] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:22:52] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 3 ms returned sat
[2025-06-05 21:22:52] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2025-06-05 21:22:52] [INFO ] State equation strengthened by 39 read => feed constraints.
[2025-06-05 21:22:52] [INFO ] [Real]Added 39 Read/Feed constraints in 14 ms returned sat
[2025-06-05 21:22:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 2 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Added 39 Read/Feed constraints in 10 ms returned sat
[2025-06-05 21:22:53] [INFO ] Computed and/alt/rep : 24/58/24 causal constraints (skipped 73 transitions) in 6 ms.
[2025-06-05 21:22:53] [INFO ] Added : 14 causal constraints over 3 iterations in 38 ms. Result :sat
Minimization took 39 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Added 39 Read/Feed constraints in 6 ms returned sat
[2025-06-05 21:22:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Added 39 Read/Feed constraints in 7 ms returned sat
[2025-06-05 21:22:53] [INFO ] Computed and/alt/rep : 24/58/24 causal constraints (skipped 73 transitions) in 6 ms.
[2025-06-05 21:22:53] [INFO ] Added : 12 causal constraints over 3 iterations in 34 ms. Result :sat
Minimization took 50 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Real]Added 39 Read/Feed constraints in 8 ms returned sat
[2025-06-05 21:22:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-05 21:22:53] [INFO ] [Nat]Added 39 Read/Feed constraints in 6 ms returned sat
[2025-06-05 21:22:53] [INFO ] Computed and/alt/rep : 24/58/24 causal constraints (skipped 73 transitions) in 5 ms.
[2025-06-05 21:22:53] [INFO ] Added : 14 causal constraints over 3 iterations in 49 ms. Result :sat
Minimization took 39 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[29, 18, 1]
Support contains 3 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 98/98 transitions.
Applied a total of 0 rules in 5 ms. Remains 90 /90 variables (removed 0) and now considering 98/98 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 90/90 places, 98/98 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 98/98 transitions.
Applied a total of 0 rules in 5 ms. Remains 90 /90 variables (removed 0) and now considering 98/98 (removed 0) transitions.
[2025-06-05 21:22:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:22:53] [INFO ] Implicit Places using invariants in 63 ms returned []
[2025-06-05 21:22:53] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:22:53] [INFO ] State equation strengthened by 39 read => feed constraints.
[2025-06-05 21:22:53] [INFO ] Implicit Places using invariants and state equation in 181 ms returned []
Implicit Place search using SMT with State Equation took 251 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 21:22:53] [INFO ] Redundant transitions in 1 ms returned []
Running 97 sub problems to find dead transitions.
[2025-06-05 21:22:53] [INFO ] Invariant cache hit.
[2025-06-05 21:22:53] [INFO ] State equation strengthened by 39 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/89 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/89 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/89 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (OVERLAPS) 1/90 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 5 (OVERLAPS) 98/188 variables, 90/94 constraints. Problems are: Problem set: 0 solved, 97 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/188 variables, 39/133 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/188 variables, 0/133 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 8 (OVERLAPS) 0/188 variables, 0/133 constraints. Problems are: Problem set: 0 solved, 97 unsolved
No progress, stopping.
After SMT solving in domain Real declared 188/188 variables, and 133 constraints, problems are : Problem set: 0 solved, 97 unsolved in 3609 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 90/90 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 97/97 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/89 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/89 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/89 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (OVERLAPS) 1/90 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/90 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 5 (OVERLAPS) 98/188 variables, 90/94 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/188 variables, 39/133 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/188 variables, 97/230 constraints. Problems are: Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:02] [INFO ] Deduced a trap along path composed of 4 places in 37 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:02] [INFO ] Deduced a trap along path composed of 17 places in 33 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:04] [INFO ] Deduced a trap along path composed of 11 places in 29 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/188 variables, 3/233 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/188 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 10 (OVERLAPS) 0/188 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 97 unsolved
No progress, stopping.
After SMT solving in domain Int declared 188/188 variables, and 233 constraints, problems are : Problem set: 0 solved, 97 unsolved in 25933 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 90/90 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 97/97 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 3/3 constraints]
After SMT, in 29640ms problems are : Problem set: 0 solved, 97 unsolved
Search for dead transitions found 0 dead transitions in 29650ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29937 ms. Remains : 90/90 places, 98/98 transitions.
RANDOM walk for 40000 steps (8950 resets) in 1787 ms. (22 steps per ms) remains 6/6 properties
[2025-06-05 21:23:24] [INFO ] Flatten gal took : 63 ms
[2025-06-05 21:23:24] [INFO ] Flatten gal took : 32 ms
[2025-06-05 21:23:24] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10676840751198162445.gal : 11 ms
[2025-06-05 21:23:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5244751720299834267.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10676840751198162445.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5244751720299834267.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 ...329
Loading property file /tmp/ReachabilityCardinality5244751720299834267.prop.
BEST_FIRST walk for 40001 steps (4098 resets) in 403 ms. (99 steps per ms) remains 6/6 properties
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :7 after 40
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :40 after 157
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :157 after 413
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :413 after 1173
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :1173 after 2679
Invariant property MIN1 does not hold.
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :2679 after 5151
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :5151 after 16833
BEST_FIRST walk for 40001 steps (4108 resets) in 387 ms. (103 steps per ms) remains 6/6 properties
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :16833 after 46005
BEST_FIRST walk for 40003 steps (4155 resets) in 192 ms. (207 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40001 steps (4081 resets) in 165 ms. (240 steps per ms) remains 6/6 properties
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :46005 after 201185
BEST_FIRST walk for 40003 steps (4161 resets) in 142 ms. (279 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (4181 resets) in 130 ms. (305 steps per ms) remains 6/6 properties
SDD proceeding with computation,5 properties remain. new max is 2048
SDD size :201185 after 1.155e+06
SDD proceeding with computation,5 properties remain. new max is 4096
SDD size :1.155e+06 after 7.41341e+06
SDD proceeding with computation,5 properties remain. new max is 8192
SDD size :7.41341e+06 after 7.40338e+07
SDD proceeding with computation,5 properties remain. new max is 16384
SDD size :7.40338e+07 after 4.61171e+08
Interrupted probabilistic random walk after 479666 steps, run timeout after 3001 ms. (steps per millisecond=159 ) properties seen :2 out of 6
Probabilistic random walk after 479666 steps, saw 200946 distinct states, run finished after 3005 ms. (steps per millisecond=159 ) properties seen :2
[2025-06-05 21:23:27] [INFO ] Invariant cache hit.
[2025-06-05 21:23:27] [INFO ] State equation strengthened by 39 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 54/57 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/57 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6/63 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:27] [INFO ] Deduced a trap composed of 24 places in 32 ms of which 3 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/63 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/63 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 74/137 variables, 63/68 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/137 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem MAX0 is UNSAT
At refinement iteration 8 (OVERLAPS) 37/174 variables, 16/84 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/174 variables, 36/120 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:27] [INFO ] Deduced a trap composed of 13 places in 49 ms of which 5 ms to minimize.
Problem MAX1 is UNSAT
At refinement iteration 10 (INCLUDED_ONLY) 0/174 variables, 1/121 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/174 variables, 0/121 constraints. Problems are: Problem set: 2 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 14/188 variables, 11/132 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/188 variables, 3/135 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/188 variables, 0/135 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 0/188 variables, 0/135 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 188/188 variables, and 135 constraints, problems are : Problem set: 2 solved, 2 unsolved in 486 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 90/90 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 2 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: 2 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 36/56 variables, 1/2 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/56 variables, 0/2 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 6/62 variables, 2/4 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/62 variables, 1/5 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/62 variables, 0/5 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 73/135 variables, 62/67 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/135 variables, 0/67 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 30/165 variables, 16/83 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/165 variables, 28/111 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/165 variables, 2/113 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/165 variables, 1/114 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/165 variables, 0/114 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 23/188 variables, 12/126 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/188 variables, 11/137 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/188 variables, 0/137 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 18 (OVERLAPS) 0/188 variables, 0/137 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 188/188 variables, and 137 constraints, problems are : Problem set: 2 solved, 2 unsolved in 149 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 90/90 constraints, ReadFeed: 39/39 constraints, PredecessorRefiner: 2/4 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 654ms problems are : Problem set: 2 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 18 ms.
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 98/98 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 96
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 96
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 6 place count 88 transition count 94
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 7 place count 87 transition count 93
Iterating global reduction 1 with 1 rules applied. Total rules applied 8 place count 87 transition count 93
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 9 place count 87 transition count 92
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 10 place count 86 transition count 91
Iterating global reduction 2 with 1 rules applied. Total rules applied 11 place count 86 transition count 91
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 12 place count 85 transition count 90
Iterating global reduction 2 with 1 rules applied. Total rules applied 13 place count 85 transition count 90
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 14 place count 84 transition count 89
Iterating global reduction 2 with 1 rules applied. Total rules applied 15 place count 84 transition count 89
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 16 place count 84 transition count 88
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 17 place count 83 transition count 87
Iterating global reduction 3 with 1 rules applied. Total rules applied 18 place count 83 transition count 87
Applied a total of 18 rules in 14 ms. Remains 83 /90 variables (removed 7) and now considering 87/98 (removed 11) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 83/90 places, 87/98 transitions.
RANDOM walk for 40000 steps (9011 resets) in 182 ms. (218 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (4188 resets) in 76 ms. (519 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (4215 resets) in 73 ms. (540 steps per ms) remains 2/2 properties
SDD proceeding with computation,5 properties remain. new max is 32768
SDD size :4.61171e+08 after 1.15561e+09
Interrupted probabilistic random walk after 859560 steps, run timeout after 3001 ms. (steps per millisecond=286 ) properties seen :0 out of 2
Probabilistic random walk after 859560 steps, saw 391236 distinct states, run finished after 3001 ms. (steps per millisecond=286 ) properties seen :0
// Phase 1: matrix 87 rows 83 cols
[2025-06-05 21:23:31] [INFO ] Computed 4 invariants in 1 ms
[2025-06-05 21:23:31] [INFO ] State equation strengthened by 33 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, 2 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 37/57 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/57 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 2/59 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/59 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 66/125 variables, 59/63 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:31] [INFO ] Deduced a trap composed of 24 places in 27 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/125 variables, 1/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/125 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 26/151 variables, 14/78 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/151 variables, 24/102 constraints. Problems are: Problem set: 0 solved, 2 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/151 variables, 0/102 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 19/170 variables, 10/112 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/170 variables, 9/121 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/170 variables, 0/121 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (OVERLAPS) 0/170 variables, 0/121 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 170/170 variables, and 121 constraints, problems are : Problem set: 0 solved, 2 unsolved in 173 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 83/83 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 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, 2 unsolved
At refinement iteration 1 (OVERLAPS) 19/20 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/20 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 37/57 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/57 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/57 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 2/59 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/59 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 66/125 variables, 59/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/125 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (OVERLAPS) 26/151 variables, 14/78 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/151 variables, 24/102 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/151 variables, 2/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/151 variables, 0/104 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 19/170 variables, 10/114 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/170 variables, 9/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/170 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 17 (OVERLAPS) 0/170 variables, 0/123 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 170/170 variables, and 123 constraints, problems are : Problem set: 0 solved, 2 unsolved in 157 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 83/83 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 336ms problems are : Problem set: 0 solved, 2 unsolved
Fused 2 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 26 ms.
Support contains 1 out of 83 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 87/87 transitions.
Applied a total of 0 rules in 4 ms. Remains 83 /83 variables (removed 0) and now considering 87/87 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 83/83 places, 87/87 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 83/83 places, 87/87 transitions.
Applied a total of 0 rules in 4 ms. Remains 83 /83 variables (removed 0) and now considering 87/87 (removed 0) transitions.
[2025-06-05 21:23:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:23:31] [INFO ] Implicit Places using invariants in 50 ms returned []
[2025-06-05 21:23:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:23:31] [INFO ] State equation strengthened by 33 read => feed constraints.
[2025-06-05 21:23:31] [INFO ] Implicit Places using invariants and state equation in 171 ms returned []
Implicit Place search using SMT with State Equation took 223 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 21:23:31] [INFO ] Redundant transitions in 2 ms returned []
Running 86 sub problems to find dead transitions.
[2025-06-05 21:23:31] [INFO ] Invariant cache hit.
[2025-06-05 21:23:31] [INFO ] State equation strengthened by 33 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 3 (OVERLAPS) 1/83 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 5 (OVERLAPS) 87/170 variables, 83/87 constraints. Problems are: Problem set: 0 solved, 86 unsolved
SDD proceeding with computation,5 properties remain. new max is 65536
SDD size :1.15561e+09 after 6.68936e+09
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/170 variables, 33/120 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/170 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 8 (OVERLAPS) 0/170 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 86 unsolved
No progress, stopping.
After SMT solving in domain Real declared 170/170 variables, and 120 constraints, problems are : Problem set: 0 solved, 86 unsolved in 2238 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 83/83 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 86/86 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/82 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/82 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/82 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 3 (OVERLAPS) 1/83 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/83 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 5 (OVERLAPS) 87/170 variables, 83/87 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/170 variables, 33/120 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/170 variables, 86/206 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:37] [INFO ] Deduced a trap composed of 23 places in 28 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/170 variables, 1/207 constraints. Problems are: Problem set: 0 solved, 86 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:23:40] [INFO ] Deduced a trap along path composed of 4 places in 25 ms of which 0 ms to minimize.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,3.34429e+10,16.3014,367324,2,16003,22,1.61168e+06,11,0,465,1.64542e+06,0
Total reachable state count : 33442887143

Verifying 6 reachability properties.
Reachability property MAX0 does not hold.
No reachable states exhibit your property : MAX0

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,0,16.3031,367324,1,0,22,1.61168e+06,11,0,466,1.64542e+06,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,1.22813e+08,16.3046,367324,2,3258,22,1.61168e+06,11,0,467,1.64542e+06,0
Reachability property MAX1 does not hold.
No reachable states exhibit your property : MAX1

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX1,0,16.3049,367324,1,0,22,1.61168e+06,11,0,467,1.64542e+06,0
Invariant property MIN1 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN1,4.24119e+09,16.3084,367324,2,9730,22,1.61168e+06,12,0,469,1.64542e+06,0
Reachability property MAX2 does not hold.
No reachable states exhibit your property : MAX2

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX2,0,16.3119,367324,1,0,22,1.61168e+06,12,0,469,1.64542e+06,0
Invariant property MIN2 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN2,0,16.3161,367324,1,0,22,1.61168e+06,12,0,469,1.64542e+06,0
At refinement iteration 9 (INCLUDED_ONLY) 0/170 variables, 1/208 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/170 variables, 0/208 constraints. Problems are: Problem set: 0 solved, 86 unsolved
At refinement iteration 11 (OVERLAPS) 0/170 variables, 0/208 constraints. Problems are: Problem set: 0 solved, 86 unsolved
No progress, stopping.
After SMT solving in domain Int declared 170/170 variables, and 208 constraints, problems are : Problem set: 0 solved, 86 unsolved in 16083 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 83/83 constraints, ReadFeed: 33/33 constraints, PredecessorRefiner: 86/86 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 18358ms problems are : Problem set: 0 solved, 86 unsolved
Search for dead transitions found 0 dead transitions in 18359ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18594 ms. Remains : 83/83 places, 87/87 transitions.
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-08 0 TECHNIQUES REACHABILITY_MIN
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[0, 0] Max Struct:[29, 18]
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m18-UpperBounds-02
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[29]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[29]
// Phase 1: matrix 98 rows 90 cols
[2025-06-05 21:23:50] [INFO ] Computed 4 invariants in 3 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[29]
RANDOM walk for 10000 steps (2240 resets) in 12 ms. (769 steps per ms)
BEST_FIRST walk for 10000 steps (1039 resets) in 7 ms. (1250 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[29]
[2025-06-05 21:23:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:23:50] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-05 21:23:50] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:23:50] [INFO ] [Real]Absence check using state equation in 27 ms returned sat
[2025-06-05 21:23:50] [INFO ] State equation strengthened by 39 read => feed constraints.
[2025-06-05 21:23:50] [INFO ] [Real]Added 39 Read/Feed constraints in 11 ms returned sat
[2025-06-05 21:23:50] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:23:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:23:50] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-05 21:23:50] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-05 21:23:50] [INFO ] [Nat]Added 39 Read/Feed constraints in 8 ms returned sat
[2025-06-05 21:23:50] [INFO ] Computed and/alt/rep : 24/58/24 causal constraints (skipped 73 transitions) in 6 ms.
[2025-06-05 21:23:50] [INFO ] Added : 14 causal constraints over 3 iterations in 39 ms. Result :sat
Minimization took 38 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[29]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[29]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 98/98 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 96
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 96
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 5 place count 88 transition count 95
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 87 transition count 94
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 87 transition count 94
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 8 place count 86 transition count 93
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 86 transition count 93
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 10 place count 85 transition count 92
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 85 transition count 92
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 12 place count 84 transition count 90
Iterating global reduction 1 with 1 rules applied. Total rules applied 13 place count 84 transition count 90
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 14 place count 83 transition count 89
Iterating global reduction 1 with 1 rules applied. Total rules applied 15 place count 83 transition count 89
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 16 place count 82 transition count 88
Iterating global reduction 1 with 1 rules applied. Total rules applied 17 place count 82 transition count 88
Applied a total of 17 rules in 12 ms. Remains 82 /90 variables (removed 8) and now considering 88/98 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 82/90 places, 88/98 transitions.
// Phase 1: matrix 88 rows 82 cols
[2025-06-05 21:23:50] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[29]
RANDOM walk for 1000000 steps (224251 resets) in 874 ms. (1142 steps per ms)
BEST_FIRST walk for 1000000 steps (103344 resets) in 448 ms. (2227 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[29]
[2025-06-05 21:23:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:23:51] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:23:51] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 2 ms returned sat
[2025-06-05 21:23:52] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2025-06-05 21:23:52] [INFO ] State equation strengthened by 34 read => feed constraints.
[2025-06-05 21:23:52] [INFO ] [Real]Added 34 Read/Feed constraints in 9 ms returned sat
[2025-06-05 21:23:52] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:23:52] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:23:52] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-05 21:23:52] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-05 21:23:52] [INFO ] [Nat]Added 34 Read/Feed constraints in 7 ms returned sat
[2025-06-05 21:23:52] [INFO ] Computed and/alt/rep : 22/52/22 causal constraints (skipped 65 transitions) in 6 ms.
[2025-06-05 21:23:52] [INFO ] Added : 16 causal constraints over 4 iterations in 47 ms. Result :sat
Minimization took 34 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[29]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[29]
Support contains 1 out of 82 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 88/88 transitions.
Applied a total of 0 rules in 2 ms. Remains 82 /82 variables (removed 0) and now considering 88/88 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 82/82 places, 88/88 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 82/82 places, 88/88 transitions.
Applied a total of 0 rules in 3 ms. Remains 82 /82 variables (removed 0) and now considering 88/88 (removed 0) transitions.
[2025-06-05 21:23:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:23:52] [INFO ] Implicit Places using invariants in 54 ms returned []
[2025-06-05 21:23:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:23:52] [INFO ] State equation strengthened by 34 read => feed constraints.
[2025-06-05 21:23:52] [INFO ] Implicit Places using invariants and state equation in 146 ms returned []
Implicit Place search using SMT with State Equation took 202 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 21:23:52] [INFO ] Redundant transitions in 2 ms returned []
Running 87 sub problems to find dead transitions.
[2025-06-05 21:23:52] [INFO ] Invariant cache hit.
[2025-06-05 21:23:52] [INFO ] State equation strengthened by 34 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 3 (OVERLAPS) 1/82 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 5 (OVERLAPS) 88/170 variables, 82/86 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/170 variables, 34/120 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/170 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 8 (OVERLAPS) 0/170 variables, 0/120 constraints. Problems are: Problem set: 0 solved, 87 unsolved
No progress, stopping.
After SMT solving in domain Real declared 170/170 variables, and 120 constraints, problems are : Problem set: 0 solved, 87 unsolved in 3654 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 34/34 constraints, PredecessorRefiner: 87/87 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 87 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/81 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/81 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/81 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 3 (OVERLAPS) 1/82 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 5 (OVERLAPS) 88/170 variables, 82/86 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/170 variables, 34/120 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/170 variables, 87/207 constraints. Problems are: Problem set: 0 solved, 87 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:24:00] [INFO ] Deduced a trap along path composed of 17 places in 30 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/170 variables, 1/208 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/170 variables, 0/208 constraints. Problems are: Problem set: 0 solved, 87 unsolved
At refinement iteration 10 (OVERLAPS) 0/170 variables, 0/208 constraints. Problems are: Problem set: 0 solved, 87 unsolved
No progress, stopping.
After SMT solving in domain Int declared 170/170 variables, and 208 constraints, problems are : Problem set: 0 solved, 87 unsolved in 17396 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 34/34 constraints, PredecessorRefiner: 87/87 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 21084ms problems are : Problem set: 0 solved, 87 unsolved
Search for dead transitions found 0 dead transitions in 21086ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21297 ms. Remains : 82/82 places, 88/88 transitions.
[2025-06-05 21:24:13] [INFO ] Flatten gal took : 19 ms
[2025-06-05 21:24:13] [INFO ] Flatten gal took : 15 ms
[2025-06-05 21:24:13] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12417783890983705755.gal : 3 ms
[2025-06-05 21:24:13] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13932655785064385431.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12417783890983705755.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13932655785064385431.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality13932655785064385431.prop.
RANDOM walk for 40000 steps (8985 resets) in 147 ms. (270 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 38
BEST_FIRST walk for 40004 steps (4164 resets) in 51 ms. (769 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :38 after 157
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :157 after 468
BEST_FIRST walk for 40001 steps (4062 resets) in 51 ms. (769 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :468 after 2019
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :2019 after 3579
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :3579 after 5607
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :5607 after 37755
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :37755 after 238393
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :238393 after 1.95607e+06
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.95607e+06 after 2.61634e+07
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :2.61634e+07 after 1.88702e+08
Interrupted probabilistic random walk after 3055183 steps, run timeout after 3001 ms. (steps per millisecond=1018 ) properties seen :1 out of 2
Probabilistic random walk after 3055183 steps, saw 1279619 distinct states, run finished after 3001 ms. (steps per millisecond=1018 ) properties seen :1
[2025-06-05 21:24:16] [INFO ] Invariant cache hit.
[2025-06-05 21:24:16] [INFO ] State equation strengthened by 34 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) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 66/69 variables, 5/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/69 variables, 9/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/69 variables, 0/15 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 38/107 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/107 variables, 5/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/107 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 8/115 variables, 1/22 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/115 variables, 4/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/115 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 6/121 variables, 2/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/121 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/121 variables, 0/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 170/170 variables, and 95 constraints, problems are : Problem set: 1 solved, 0 unsolved in 87 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 82/82 constraints, ReadFeed: 9/34 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 92ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[29]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m18-UpperBounds-02 in 26388 ms.
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m18-UpperBounds-05
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[18]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[18]
// Phase 1: matrix 98 rows 90 cols
[2025-06-05 21:24:16] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[18]
RANDOM walk for 10000 steps (2244 resets) in 13 ms. (714 steps per ms)
BEST_FIRST walk for 10001 steps (1034 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[18]
[2025-06-05 21:24:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:24:16] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:24:16] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-05 21:24:16] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-05 21:24:16] [INFO ] State equation strengthened by 39 read => feed constraints.
[2025-06-05 21:24:16] [INFO ] [Real]Added 39 Read/Feed constraints in 6 ms returned sat
[2025-06-05 21:24:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-05 21:24:16] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-05 21:24:16] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-05 21:24:16] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-05 21:24:16] [INFO ] [Nat]Added 39 Read/Feed constraints in 7 ms returned sat
[2025-06-05 21:24:16] [INFO ] Computed and/alt/rep : 24/58/24 causal constraints (skipped 73 transitions) in 6 ms.
[2025-06-05 21:24:16] [INFO ] Added : 12 causal constraints over 3 iterations in 37 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[18]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[18]
Support contains 1 out of 90 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 90/90 places, 98/98 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 88 transition count 96
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 88 transition count 96
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 5 place count 88 transition count 95
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 7 place count 86 transition count 93
Iterating global reduction 1 with 2 rules applied. Total rules applied 9 place count 86 transition count 93
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 10 place count 86 transition count 92
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 12 place count 84 transition count 90
Iterating global reduction 2 with 2 rules applied. Total rules applied 14 place count 84 transition count 90
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 16 place count 82 transition count 88
Iterating global reduction 2 with 2 rules applied. Total rules applied 18 place count 82 transition count 88
Discarding 2 places :
Symmetric choice reduction at 2 with 2 rule applications. Total rules 20 place count 80 transition count 85
Iterating global reduction 2 with 2 rules applied. Total rules applied 22 place count 80 transition count 85
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 23 place count 80 transition count 84
Discarding 2 places :
Symmetric choice reduction at 3 with 2 rule applications. Total rules 25 place count 78 transition count 82
Iterating global reduction 3 with 2 rules applied. Total rules applied 27 place count 78 transition count 82
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 28 place count 77 transition count 81
Iterating global reduction 3 with 1 rules applied. Total rules applied 29 place count 77 transition count 81
Applied a total of 29 rules in 15 ms. Remains 77 /90 variables (removed 13) and now considering 81/98 (removed 17) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 77/90 places, 81/98 transitions.
// Phase 1: matrix 81 rows 77 cols
[2025-06-05 21:24:17] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[18]
RANDOM walk for 1000000 steps (224585 resets) in 806 ms. (1239 steps per ms)
BEST_FIRST walk for 1000001 steps (103713 resets) in 416 ms. (2398 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[18]
[2025-06-05 21:24:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:24:18] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:24:18] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:24:18] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-05 21:24:18] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-05 21:24:18] [INFO ] [Real]Added 32 Read/Feed constraints in 10 ms returned sat
[2025-06-05 21:24:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-05 21:24:18] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-05 21:24:18] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-05 21:24:18] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-05 21:24:18] [INFO ] [Nat]Added 32 Read/Feed constraints in 4 ms returned sat
[2025-06-05 21:24:18] [INFO ] Computed and/alt/rep : 20/44/20 causal constraints (skipped 60 transitions) in 5 ms.
[2025-06-05 21:24:18] [INFO ] Added : 13 causal constraints over 4 iterations in 40 ms. Result :sat
Minimization took 43 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[18]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[18]
Support contains 1 out of 77 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 77/77 places, 81/81 transitions.
Applied a total of 0 rules in 8 ms. Remains 77 /77 variables (removed 0) and now considering 81/81 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 77/77 places, 81/81 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 77/77 places, 81/81 transitions.
Applied a total of 0 rules in 2 ms. Remains 77 /77 variables (removed 0) and now considering 81/81 (removed 0) transitions.
[2025-06-05 21:24:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:24:18] [INFO ] Implicit Places using invariants in 56 ms returned []
[2025-06-05 21:24:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-05 21:24:18] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-05 21:24:18] [INFO ] Implicit Places using invariants and state equation in 135 ms returned []
Implicit Place search using SMT with State Equation took 192 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-05 21:24:18] [INFO ] Redundant transitions in 2 ms returned []
Running 80 sub problems to find dead transitions.
[2025-06-05 21:24:18] [INFO ] Invariant cache hit.
[2025-06-05 21:24:18] [INFO ] State equation strengthened by 32 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 3 (OVERLAPS) 1/77 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/77 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 5 (OVERLAPS) 81/158 variables, 77/81 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/158 variables, 32/113 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/158 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 8 (OVERLAPS) 0/158 variables, 0/113 constraints. Problems are: Problem set: 0 solved, 80 unsolved
No progress, stopping.
After SMT solving in domain Real declared 158/158 variables, and 113 constraints, problems are : Problem set: 0 solved, 80 unsolved in 2438 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 77/77 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 80/80 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/76 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/76 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/76 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 3 (OVERLAPS) 1/77 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/77 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 5 (OVERLAPS) 81/158 variables, 77/81 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/158 variables, 32/113 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/158 variables, 80/193 constraints. Problems are: Problem set: 0 solved, 80 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:24:24] [INFO ] Deduced a trap along path composed of 17 places in 30 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/158 variables, 1/194 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/158 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 80 unsolved
At refinement iteration 10 (OVERLAPS) 0/158 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 80 unsolved
No progress, stopping.
After SMT solving in domain Int declared 158/158 variables, and 194 constraints, problems are : Problem set: 0 solved, 80 unsolved in 11038 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 77/77 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 80/80 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 13500ms problems are : Problem set: 0 solved, 80 unsolved
Search for dead transitions found 0 dead transitions in 13500ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13701 ms. Remains : 77/77 places, 81/81 transitions.
[2025-06-05 21:24:32] [INFO ] Flatten gal took : 12 ms
[2025-06-05 21:24:32] [INFO ] Flatten gal took : 6 ms
[2025-06-05 21:24:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality368098902299342241.gal : 2 ms
[2025-06-05 21:24:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11167037903580309974.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality368098902299342241.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11167037903580309974.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
Loading property file /tmp/ReachabilityCardinality11167037903580309974.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 7
RANDOM walk for 40000 steps (8984 resets) in 117 ms. (338 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :7 after 38
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :38 after 157
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :157 after 333
BEST_FIRST walk for 40003 steps (4203 resets) in 47 ms. (833 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :333 after 1257
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1257 after 3783
BEST_FIRST walk for 40003 steps (4166 resets) in 60 ms. (655 steps per ms) remains 2/2 properties
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :3783 after 4503
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :4503 after 10401
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :10401 after 44109
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :44109 after 294461
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :294461 after 2.11563e+06
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :2.11563e+06 after 2.70738e+07
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :2.70738e+07 after 2.90006e+08
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :2.90006e+08 after 1.01896e+09
Interrupted probabilistic random walk after 3271463 steps, run timeout after 3001 ms. (steps per millisecond=1090 ) properties seen :1 out of 2
Probabilistic random walk after 3271463 steps, saw 1451625 distinct states, run finished after 3001 ms. (steps per millisecond=1090 ) properties seen :1
[2025-06-05 21:24:35] [INFO ] Invariant cache hit.
[2025-06-05 21:24:35] [INFO ] State equation strengthened by 32 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) 38/39 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/39 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 8/47 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/47 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 6/53 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:24:35] [INFO ] Deduced a trap composed of 24 places in 32 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/53 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/53 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 60/113 variables, 53/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/113 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 26/139 variables, 14/72 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/139 variables, 23/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/139 variables, 0/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 19/158 variables, 10/105 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/158 variables, 9/114 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-05 21:24:35] [INFO ] Deduced a trap composed of 10 places in 56 ms of which 4 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 158/158 variables, and 115 constraints, problems are : Problem set: 1 solved, 0 unsolved in 222 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 77/77 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 225ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[0] Max Struct:[18]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m18-UpperBounds-05 in 18749 ms.
[2025-06-05 21:24:35] [INFO ] Flatten gal took : 8 ms
[2025-06-05 21:24:35] [INFO ] Applying decomposition
[2025-06-05 21:24:35] [INFO ] Flatten gal took : 7 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2114371331145408446.txt' '-o' '/tmp/graph2114371331145408446.bin' '-w' '/tmp/graph2114371331145408446.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2114371331145408446.bin' '-l' '-1' '-v' '-w' '/tmp/graph2114371331145408446.weights' '-q' '0' '-e' '0.001'
[2025-06-05 21:24:35] [INFO ] Decomposing Gal with order
[2025-06-05 21:24:35] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-05 21:24:35] [INFO ] Removed a total of 95 redundant transitions.
[2025-06-05 21:24:35] [INFO ] Flatten gal took : 41 ms
[2025-06-05 21:24:35] [INFO ] Fuse similar labels procedure discarded/fused a total of 67 labels/synchronizations in 8 ms.
[2025-06-05 21:24:35] [INFO ] Time to serialize gal into /tmp/UpperBounds16556963443895497583.gal : 3 ms
[2025-06-05 21:24:35] [INFO ] Time to serialize properties into /tmp/UpperBounds6539202582984670178.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/UpperBounds16556963443895497583.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds6539202582984670178.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 ...284
Loading property file /tmp/UpperBounds6539202582984670178.prop.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,3.34429e+10,390.09,3660932,4498,2073,2.23228e+06,250368,299,2.73137e+07,74,4.04357e+06,0
Total reachable state count : 33442887143

Verifying 2 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property SieveSingleMsgMbox-PT-d1m18-UpperBounds-02 :0 <= i7.u19.p71 <= 1
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-02 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SieveSingleMsgMbox-PT-d1m18-UpperBounds-02,0,393.154,3660932,1,0,2.23228e+06,250368,403,2.73137e+07,94,4.04357e+06,1982
Min sum of variable value : 0
Maximum sum along a path : 15
Bounds property SieveSingleMsgMbox-PT-d1m18-UpperBounds-05 :0 <= u21.l1209 <= 15
FORMULA SieveSingleMsgMbox-PT-d1m18-UpperBounds-05 15 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SieveSingleMsgMbox-PT-d1m18-UpperBounds-05,0,396.614,3660932,1,0,2.23228e+06,250368,428,2.73137e+07,113,4.04357e+06,5515
Total runtime 514347 ms.

BK_STOP 1749159073308

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ 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 UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="SieveSingleMsgMbox-PT-d1m18"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool itstools"
echo " Input is SieveSingleMsgMbox-PT-d1m18, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r212-tall-174901994300421"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SieveSingleMsgMbox-PT-d1m18.tgz
mv SieveSingleMsgMbox-PT-d1m18 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;