Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r212-tall-174901994400445.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-d1m96, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r212-tall-174901994400445
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 892K
-rw-r--r-- 1 mcc users 6.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K 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 3.5K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 127K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.9K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 76K 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 4.0K 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-d1m96-UpperBounds-00
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-01
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-02
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-03
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-04
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-05
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-06
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-07
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-08
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-09
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-10
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-11
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-12
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-13
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-14
FORMULA_NAME SieveSingleMsgMbox-PT-d1m96-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1749174675902

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-d1m96
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2025-06-06 01:51:17] [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]
[2025-06-06 01:51:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-06 01:51:17] [INFO ] Load time of PNML (sax parser for PT used): 138 ms
[2025-06-06 01:51:17] [INFO ] Transformed 1295 places.
[2025-06-06 01:51:17] [INFO ] Transformed 749 transitions.
[2025-06-06 01:51:17] [INFO ] Parsed PT model containing 1295 places and 749 transitions and 2996 arcs in 239 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 1036 places in 9 ms
Reduce places removed 1036 places and 0 transitions.
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 749 rows 259 cols
[2025-06-06 01:51:17] [INFO ] Computed 6 invariants in 23 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[123, 1, 123, 10, 123, 1]
RANDOM walk for 10000 steps (2180 resets) in 163 ms. (60 steps per ms)
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50002 steps (4746 resets) in 250 ms. (199 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[123, 1, 123, 10, 123]
[2025-06-06 01:51:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:18] [INFO ] [Real]Absence check using 3 positive place invariants in 10 ms returned sat
[2025-06-06 01:51:18] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 4 ms returned sat
[2025-06-06 01:51:18] [INFO ] [Real]Absence check using state equation in 176 ms returned sat
[2025-06-06 01:51:18] [INFO ] State equation strengthened by 587 read => feed constraints.
[2025-06-06 01:51:18] [INFO ] [Real]Added 587 Read/Feed constraints in 119 ms returned sat
[2025-06-06 01:51:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:18] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-06 01:51:18] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2025-06-06 01:51:18] [INFO ] [Nat]Added 587 Read/Feed constraints in 130 ms returned sat
[2025-06-06 01:51:18] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 116 ms.
[2025-06-06 01:51:19] [INFO ] Added : 23 causal constraints over 5 iterations in 471 ms. Result :sat
Minimization took 554 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:19] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:19] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-06 01:51:20] [INFO ] [Real]Absence check using state equation in 143 ms returned sat
[2025-06-06 01:51:20] [INFO ] [Real]Added 587 Read/Feed constraints in 80 ms returned sat
[2025-06-06 01:51:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:20] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-06 01:51:20] [INFO ] [Nat]Absence check using state equation in 132 ms returned sat
[2025-06-06 01:51:20] [INFO ] [Nat]Added 587 Read/Feed constraints in 85 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:20] [INFO ] Deduced a trap composed of 29 places in 147 ms of which 17 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:20] [INFO ] Deduced a trap composed of 29 places in 125 ms of which 11 ms to minimize.
[2025-06-06 01:51:20] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 429 ms
[2025-06-06 01:51:20] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 56 ms.
[2025-06-06 01:51:21] [INFO ] Added : 12 causal constraints over 3 iterations in 294 ms. Result :sat
Minimization took 577 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:21] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:21] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 2 ms returned sat
[2025-06-06 01:51:21] [INFO ] [Real]Absence check using state equation in 132 ms returned sat
[2025-06-06 01:51:22] [INFO ] [Real]Added 587 Read/Feed constraints in 123 ms returned sat
[2025-06-06 01:51:22] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:22] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 5 ms returned sat
[2025-06-06 01:51:22] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2025-06-06 01:51:22] [INFO ] [Nat]Added 587 Read/Feed constraints in 89 ms returned sat
[2025-06-06 01:51:22] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 68 ms.
[2025-06-06 01:51:22] [INFO ] Added : 16 causal constraints over 4 iterations in 332 ms. Result :sat
Minimization took 546 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:23] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 3 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Real]Added 587 Read/Feed constraints in 72 ms returned sat
[2025-06-06 01:51:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 5 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Nat]Absence check using state equation in 142 ms returned sat
[2025-06-06 01:51:23] [INFO ] [Nat]Added 587 Read/Feed constraints in 127 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:24] [INFO ] Deduced a trap composed of 29 places in 128 ms of which 19 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:24] [INFO ] Deduced a trap composed of 58 places in 134 ms of which 28 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:24] [INFO ] Deduced a trap composed of 141 places in 114 ms of which 25 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:24] [INFO ] Deduced a trap composed of 157 places in 113 ms of which 26 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:24] [INFO ] Deduced a trap composed of 157 places in 111 ms of which 16 ms to minimize.
[2025-06-06 01:51:24] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 901 ms
[2025-06-06 01:51:24] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 64 ms.
[2025-06-06 01:51:25] [INFO ] Added : 30 causal constraints over 6 iterations in 486 ms. Result :sat
Minimization took 547 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:25] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:25] [INFO ] [Real]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:25] [INFO ] [Real]Absence check using state equation in 114 ms returned sat
[2025-06-06 01:51:26] [INFO ] [Real]Added 587 Read/Feed constraints in 71 ms returned sat
[2025-06-06 01:51:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:51:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:26] [INFO ] [Nat]Absence check using 3 positive and 3 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:26] [INFO ] [Nat]Absence check using state equation in 113 ms returned sat
[2025-06-06 01:51:26] [INFO ] [Nat]Added 587 Read/Feed constraints in 138 ms returned sat
[2025-06-06 01:51:26] [INFO ] Computed and/alt/rep : 82/233/82 causal constraints (skipped 666 transitions) in 61 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:26] [INFO ] Deduced a trap composed of 58 places in 97 ms of which 4 ms to minimize.
[2025-06-06 01:51:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 159 ms
[2025-06-06 01:51:27] [INFO ] Added : 25 causal constraints over 7 iterations in 619 ms. Result :sat
Minimization took 540 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[123, 1, 123, 10, 123]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[123, 1, 123, 10, 123]
Support contains 5 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.3 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 59 places :
Symmetric choice reduction at 1 with 59 rule applications. Total rules 302 place count 182 transition count 233
Iterating global reduction 1 with 59 rules applied. Total rules applied 361 place count 182 transition count 233
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 1 with 7 rules applied. Total rules applied 368 place count 182 transition count 226
Discarding 43 places :
Symmetric choice reduction at 2 with 43 rule applications. Total rules 411 place count 139 transition count 183
Iterating global reduction 2 with 43 rules applied. Total rules applied 454 place count 139 transition count 183
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 2 with 16 rules applied. Total rules applied 470 place count 139 transition count 167
Discarding 23 places :
Symmetric choice reduction at 3 with 23 rule applications. Total rules 493 place count 116 transition count 143
Iterating global reduction 3 with 23 rules applied. Total rules applied 516 place count 116 transition count 143
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 3 with 12 rules applied. Total rules applied 528 place count 116 transition count 131
Discarding 7 places :
Symmetric choice reduction at 4 with 7 rule applications. Total rules 535 place count 109 transition count 121
Iterating global reduction 4 with 7 rules applied. Total rules applied 542 place count 109 transition count 121
Discarding 7 places :
Symmetric choice reduction at 4 with 7 rule applications. Total rules 549 place count 102 transition count 114
Iterating global reduction 4 with 7 rules applied. Total rules applied 556 place count 102 transition count 114
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 560 place count 98 transition count 109
Iterating global reduction 4 with 4 rules applied. Total rules applied 564 place count 98 transition count 109
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 565 place count 98 transition count 108
Discarding 3 places :
Symmetric choice reduction at 5 with 3 rule applications. Total rules 568 place count 95 transition count 105
Iterating global reduction 5 with 3 rules applied. Total rules applied 571 place count 95 transition count 105
Discarding 2 places :
Symmetric choice reduction at 5 with 2 rule applications. Total rules 573 place count 93 transition count 103
Iterating global reduction 5 with 2 rules applied. Total rules applied 575 place count 93 transition count 103
Applied a total of 575 rules in 80 ms. Remains 93 /259 variables (removed 166) and now considering 103/749 (removed 646) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 92 ms. Remains : 93/259 places, 103/749 transitions.
// Phase 1: matrix 103 rows 93 cols
[2025-06-06 01:51:27] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[96, 1, 96, 10, 96]
RANDOM walk for 1000000 steps (224157 resets) in 997 ms. (1002 steps per ms)
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 4000003 steps (414197 resets) in 1973 ms. (2026 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
[2025-06-06 01:51:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:30] [INFO ] [Real]Absence check using 2 positive place invariants in 3 ms returned sat
[2025-06-06 01:51:30] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 2 ms returned sat
[2025-06-06 01:51:30] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2025-06-06 01:51:30] [INFO ] State equation strengthened by 41 read => feed constraints.
[2025-06-06 01:51:30] [INFO ] [Real]Added 41 Read/Feed constraints in 21 ms returned sat
[2025-06-06 01:51:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:30] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:30] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:30] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2025-06-06 01:51:30] [INFO ] [Nat]Added 41 Read/Feed constraints in 14 ms returned sat
[2025-06-06 01:51:30] [INFO ] Computed and/alt/rep : 25/61/25 causal constraints (skipped 77 transitions) in 6 ms.
[2025-06-06 01:51:30] [INFO ] Added : 13 causal constraints over 3 iterations in 55 ms. Result :sat
Minimization took 76 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:30] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Added 41 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:51:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Added 41 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:51:31] [INFO ] Computed and/alt/rep : 25/61/25 causal constraints (skipped 77 transitions) in 5 ms.
[2025-06-06 01:51:31] [INFO ] Added : 11 causal constraints over 3 iterations in 33 ms. Result :sat
Minimization took 54 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Added 41 Read/Feed constraints in 12 ms returned sat
[2025-06-06 01:51:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Added 41 Read/Feed constraints in 11 ms returned sat
[2025-06-06 01:51:31] [INFO ] Computed and/alt/rep : 25/61/25 causal constraints (skipped 77 transitions) in 7 ms.
[2025-06-06 01:51:31] [INFO ] Added : 14 causal constraints over 3 iterations in 42 ms. Result :sat
Minimization took 42 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Real]Added 41 Read/Feed constraints in 10 ms returned sat
[2025-06-06 01:51:31] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Absence check using state equation in 24 ms returned sat
[2025-06-06 01:51:31] [INFO ] [Nat]Added 41 Read/Feed constraints in 7 ms returned sat
[2025-06-06 01:51:31] [INFO ] Computed and/alt/rep : 25/61/25 causal constraints (skipped 77 transitions) in 6 ms.
[2025-06-06 01:51:31] [INFO ] Added : 14 causal constraints over 3 iterations in 39 ms. Result :sat
Minimization took 59 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
Support contains 4 out of 93 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 93/93 places, 103/103 transitions.
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 92 transition count 102
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 92 transition count 102
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 92 transition count 101
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 4 place count 91 transition count 100
Iterating global reduction 1 with 1 rules applied. Total rules applied 5 place count 91 transition count 100
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 90 transition count 99
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 90 transition count 99
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 8 place count 89 transition count 97
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 89 transition count 97
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 10 place count 88 transition count 96
Iterating global reduction 1 with 1 rules applied. Total rules applied 11 place count 88 transition count 96
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 12 place count 87 transition count 95
Iterating global reduction 1 with 1 rules applied. Total rules applied 13 place count 87 transition count 95
Applied a total of 13 rules in 15 ms. Remains 87 /93 variables (removed 6) and now considering 95/103 (removed 8) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 87/93 places, 95/103 transitions.
// Phase 1: matrix 95 rows 87 cols
[2025-06-06 01:51:32] [INFO ] Computed 4 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
RANDOM walk for 1000000 steps (224244 resets) in 950 ms. (1051 steps per ms)
BEST_FIRST walk for 4000002 steps (414165 resets) in 1908 ms. (2095 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
[2025-06-06 01:51:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:34] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:34] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:34] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:34] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:51:34] [INFO ] [Real]Added 38 Read/Feed constraints in 21 ms returned sat
[2025-06-06 01:51:34] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Added 38 Read/Feed constraints in 8 ms returned sat
[2025-06-06 01:51:35] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 6 ms.
[2025-06-06 01:51:35] [INFO ] Added : 14 causal constraints over 3 iterations in 33 ms. Result :sat
Minimization took 58 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Added 38 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:51:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Added 38 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:51:35] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 8 ms.
[2025-06-06 01:51:35] [INFO ] Added : 15 causal constraints over 3 iterations in 35 ms. Result :sat
Minimization took 56 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Added 38 Read/Feed constraints in 12 ms returned sat
[2025-06-06 01:51:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Added 38 Read/Feed constraints in 9 ms returned sat
[2025-06-06 01:51:35] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 5 ms.
[2025-06-06 01:51:35] [INFO ] Added : 20 causal constraints over 4 iterations in 57 ms. Result :sat
Minimization took 40 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Real]Added 38 Read/Feed constraints in 16 ms returned sat
[2025-06-06 01:51:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:51:35] [INFO ] [Nat]Added 38 Read/Feed constraints in 7 ms returned sat
[2025-06-06 01:51:35] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 5 ms.
[2025-06-06 01:51:35] [INFO ] Added : 16 causal constraints over 4 iterations in 44 ms. Result :sat
Minimization took 59 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[96, 96, 10, 96]
Support contains 4 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Applied a total of 0 rules in 5 ms. Remains 87 /87 variables (removed 0) and now considering 95/95 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 87/87 places, 95/95 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Applied a total of 0 rules in 5 ms. Remains 87 /87 variables (removed 0) and now considering 95/95 (removed 0) transitions.
[2025-06-06 01:51:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:51:36] [INFO ] Implicit Places using invariants in 61 ms returned []
[2025-06-06 01:51:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:51:36] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:51:36] [INFO ] Implicit Places using invariants and state equation in 130 ms returned []
Implicit Place search using SMT with State Equation took 193 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 01:51:36] [INFO ] Redundant transitions in 2 ms returned []
Running 94 sub problems to find dead transitions.
[2025-06-06 01:51:36] [INFO ] Invariant cache hit.
[2025-06-06 01:51:36] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 3 (OVERLAPS) 1/87 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/87 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 5 (OVERLAPS) 95/182 variables, 87/91 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/182 variables, 38/129 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/182 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 8 (OVERLAPS) 0/182 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 94 unsolved
No progress, stopping.
After SMT solving in domain Real declared 182/182 variables, and 129 constraints, problems are : Problem set: 0 solved, 94 unsolved in 2863 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 87/87 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 94/94 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/86 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/86 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/86 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 3 (OVERLAPS) 1/87 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/87 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 5 (OVERLAPS) 95/182 variables, 87/91 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/182 variables, 38/129 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/182 variables, 94/223 constraints. Problems are: Problem set: 0 solved, 94 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:45] [INFO ] Deduced a trap along path composed of 4 places in 34 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:51:45] [INFO ] Deduced a trap along path composed of 17 places in 24 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/182 variables, 2/225 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/182 variables, 0/225 constraints. Problems are: Problem set: 0 solved, 94 unsolved
At refinement iteration 10 (OVERLAPS) 0/182 variables, 0/225 constraints. Problems are: Problem set: 0 solved, 94 unsolved
No progress, stopping.
After SMT solving in domain Int declared 182/182 variables, and 225 constraints, problems are : Problem set: 0 solved, 94 unsolved in 19679 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 87/87 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 94/94 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 22634ms problems are : Problem set: 0 solved, 94 unsolved
Search for dead transitions found 0 dead transitions in 22641ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22859 ms. Remains : 87/87 places, 95/95 transitions.
RANDOM walk for 40000 steps (8944 resets) in 970 ms. (41 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (4078 resets) in 296 ms. (134 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (4140 resets) in 176 ms. (226 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (4134 resets) in 186 ms. (213 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (3977 resets) in 148 ms. (268 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40001 steps (4064 resets) in 181 ms. (219 steps per ms) remains 8/8 properties
[2025-06-06 01:51:59] [INFO ] Flatten gal took : 49 ms
[2025-06-06 01:51:59] [INFO ] Flatten gal took : 16 ms
BEST_FIRST walk for 40003 steps (4095 resets) in 169 ms. (235 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (4242 resets) in 85 ms. (465 steps per ms) remains 8/8 properties
[2025-06-06 01:51:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6268297874387718963.gal : 8 ms
BEST_FIRST walk for 40003 steps (4144 resets) in 64 ms. (615 steps per ms) remains 8/8 properties
[2025-06-06 01:51:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4398596902500977215.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/ReachabilityCardinality6268297874387718963.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4398596902500977215.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/ReachabilityCardinality4398596902500977215.prop.
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :7 after 38
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :38 after 172
Invariant property MIN1 does not hold.
SDD proceeding with computation,7 properties remain. new max is 16
SDD size :172 after 889
SDD proceeding with computation,7 properties remain. new max is 32
SDD size :889 after 1851
SDD proceeding with computation,7 properties remain. new max is 64
SDD size :1851 after 3573
SDD proceeding with computation,7 properties remain. new max is 128
SDD size :3573 after 4425
SDD proceeding with computation,7 properties remain. new max is 256
SDD size :4425 after 8583
SDD proceeding with computation,7 properties remain. new max is 512
SDD size :8583 after 48063
Invariant property MIN0 does not hold.
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :48063 after 303251
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :303251 after 1.21168e+06
SDD proceeding with computation,6 properties remain. new max is 2048
SDD size :1.21168e+06 after 6.05001e+06
SDD proceeding with computation,6 properties remain. new max is 4096
SDD size :6.05001e+06 after 6.04589e+07
SDD proceeding with computation,6 properties remain. new max is 8192
SDD size :6.04589e+07 after 8.58096e+08
Interrupted probabilistic random walk after 888606 steps, run timeout after 3001 ms. (steps per millisecond=296 ) properties seen :3 out of 8
Probabilistic random walk after 888606 steps, saw 369980 distinct states, run finished after 3007 ms. (steps per millisecond=295 ) properties seen :3
[2025-06-06 01:52:02] [INFO ] Invariant cache hit.
[2025-06-06 01:52:02] [INFO ] State equation strengthened by 38 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 39/43 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:02] [INFO ] Deduced a trap composed of 34 places in 114 ms of which 7 ms to minimize.
Problem MAX1 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/43 variables, 1/2 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/43 variables, 0/2 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 8/51 variables, 1/3 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/51 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 6/57 variables, 2/5 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:03] [INFO ] Deduced a trap composed of 24 places in 34 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/57 variables, 1/6 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/57 variables, 0/6 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 69/126 variables, 57/63 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/126 variables, 0/63 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 11 (OVERLAPS) 35/161 variables, 19/82 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/161 variables, 28/110 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:03] [INFO ] Deduced a trap composed of 13 places in 143 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:03] [INFO ] Deduced a trap composed of 13 places in 59 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:03] [INFO ] Deduced a trap composed of 13 places in 54 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:03] [INFO ] Deduced a trap composed of 13 places in 58 ms of which 5 ms to minimize.
Problem MAX0 is UNSAT
Problem MAX3 is UNSAT
At refinement iteration 13 (INCLUDED_ONLY) 0/161 variables, 4/114 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/161 variables, 0/114 constraints. Problems are: Problem set: 3 solved, 1 unsolved
Problem MAX2 is UNSAT
After SMT solving in domain Real declared 182/182 variables, and 125 constraints, problems are : Problem set: 4 solved, 0 unsolved in 666 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 87/87 constraints, ReadFeed: 28/38 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 6/6 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 673ms problems are : Problem set: 4 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, 0, 0, 0] Max Struct:[96, 96, 10, 96]
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-01
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:[96]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:52:03] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 10000 steps (2283 resets) in 13 ms. (714 steps per ms)
BEST_FIRST walk for 10001 steps (1051 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:52:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:03] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:52:03] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:03] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-06 01:52:03] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:52:03] [INFO ] [Real]Added 38 Read/Feed constraints in 18 ms returned sat
[2025-06-06 01:52:03] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:03] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:03] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:03] [INFO ] [Nat]Absence check using state equation in 22 ms returned sat
[2025-06-06 01:52:03] [INFO ] [Nat]Added 38 Read/Feed constraints in 8 ms returned sat
[2025-06-06 01:52:03] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 11 ms.
[2025-06-06 01:52:03] [INFO ] Added : 14 causal constraints over 3 iterations in 56 ms. Result :sat
Minimization took 57 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 85 transition count 93
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 85 transition count 93
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 85 transition count 92
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 7 place count 83 transition count 90
Iterating global reduction 1 with 2 rules applied. Total rules applied 9 place count 83 transition count 90
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 11 place count 81 transition count 87
Iterating global reduction 1 with 2 rules applied. Total rules applied 13 place count 81 transition count 87
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 14 place count 81 transition count 86
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 15 place count 80 transition count 85
Iterating global reduction 2 with 1 rules applied. Total rules applied 16 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 17 place count 80 transition count 84
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 18 place count 79 transition count 83
Iterating global reduction 3 with 1 rules applied. Total rules applied 19 place count 79 transition count 83
Applied a total of 19 rules in 16 ms. Remains 79 /87 variables (removed 8) and now considering 83/95 (removed 12) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 79/87 places, 83/95 transitions.
// Phase 1: matrix 83 rows 79 cols
[2025-06-06 01:52:03] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 1000000 steps (224563 resets) in 801 ms. (1246 steps per ms)
BEST_FIRST walk for 1000000 steps (103196 resets) in 398 ms. (2506 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:52:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:05] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:05] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2025-06-06 01:52:05] [INFO ] [Real]Absence check using state equation in 21 ms returned sat
[2025-06-06 01:52:05] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-06 01:52:05] [INFO ] [Real]Added 32 Read/Feed constraints in 11 ms returned sat
[2025-06-06 01:52:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:05] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-06 01:52:05] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:05] [INFO ] [Nat]Absence check using state equation in 31 ms returned sat
[2025-06-06 01:52:05] [INFO ] [Nat]Added 32 Read/Feed constraints in 7 ms returned sat
[2025-06-06 01:52:05] [INFO ] Computed and/alt/rep : 21/46/21 causal constraints (skipped 61 transitions) in 18 ms.
[2025-06-06 01:52:05] [INFO ] Added : 16 causal constraints over 4 iterations in 56 ms. Result :sat
Minimization took 56 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 83/83 transitions.
Applied a total of 0 rules in 6 ms. Remains 79 /79 variables (removed 0) and now considering 83/83 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 79/79 places, 83/83 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 83/83 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 83/83 (removed 0) transitions.
[2025-06-06 01:52:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:05] [INFO ] Implicit Places using invariants in 53 ms returned []
[2025-06-06 01:52:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:05] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-06 01:52:05] [INFO ] Implicit Places using invariants and state equation in 133 ms returned []
Implicit Place search using SMT with State Equation took 197 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 01:52:05] [INFO ] Redundant transitions in 1 ms returned []
Running 82 sub problems to find dead transitions.
[2025-06-06 01:52:05] [INFO ] Invariant cache hit.
[2025-06-06 01:52:05] [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) 0/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/78 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 3 (OVERLAPS) 1/79 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 5 (OVERLAPS) 83/162 variables, 79/83 constraints. Problems are: Problem set: 0 solved, 82 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/162 variables, 32/115 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/162 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 8 (OVERLAPS) 0/162 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 82 unsolved
No progress, stopping.
After SMT solving in domain Real declared 162/162 variables, and 115 constraints, problems are : Problem set: 0 solved, 82 unsolved in 2255 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 79/79 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 82/82 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/78 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 3 (OVERLAPS) 1/79 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 5 (OVERLAPS) 83/162 variables, 79/83 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/162 variables, 32/115 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/162 variables, 82/197 constraints. Problems are: Problem set: 0 solved, 82 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:10] [INFO ] Deduced a trap along path composed of 4 places in 32 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:10] [INFO ] Deduced a trap along path composed of 17 places in 26 ms of which 0 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/162 variables, 2/199 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/162 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 82 unsolved
At refinement iteration 10 (OVERLAPS) 0/162 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 82 unsolved
No progress, stopping.
After SMT solving in domain Int declared 162/162 variables, and 199 constraints, problems are : Problem set: 0 solved, 82 unsolved in 14057 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 79/79 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 82/82 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 16362ms problems are : Problem set: 0 solved, 82 unsolved
Search for dead transitions found 0 dead transitions in 16362ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16576 ms. Remains : 79/79 places, 83/83 transitions.
[2025-06-06 01:52:21] [INFO ] Flatten gal took : 23 ms
[2025-06-06 01:52:21] [INFO ] Flatten gal took : 17 ms
RANDOM walk for 40000 steps (8916 resets) in 128 ms. (310 steps per ms) remains 2/2 properties
[2025-06-06 01:52:21] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6881872794189423774.gal : 12 ms
[2025-06-06 01:52:21] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14257384505292945654.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/ReachabilityCardinality6881872794189423774.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14257384505292945654.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/ReachabilityCardinality14257384505292945654.prop.
BEST_FIRST walk for 40001 steps (4175 resets) in 81 ms. (487 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
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :38 after 157
BEST_FIRST walk for 40002 steps (4131 resets) in 85 ms. (465 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :157 after 333
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :333 after 1767
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :1767 after 3411
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :3411 after 5943
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :5943 after 38091
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :38091 after 225421
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :225421 after 805099
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :805099 after 3.91531e+06
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :3.91531e+06 after 3.28871e+07
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :3.28871e+07 after 3.74151e+08
Interrupted probabilistic random walk after 1499269 steps, run timeout after 3001 ms. (steps per millisecond=499 ) properties seen :0 out of 2
Probabilistic random walk after 1499269 steps, saw 697081 distinct states, run finished after 3001 ms. (steps per millisecond=499 ) properties seen :0
[2025-06-06 01:52:24] [INFO ] Invariant cache hit.
[2025-06-06 01:52:24] [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) 12/51 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/51 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/53 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/53 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 60/113 variables, 53/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:25] [INFO ] Deduced a trap composed of 24 places in 37 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/113 variables, 1/58 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) 28/141 variables, 15/73 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/141 variables, 22/95 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:25] [INFO ] Deduced a trap composed of 12 places in 36 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:25] [INFO ] Deduced a trap composed of 12 places in 335 ms of which 5 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 141/162 variables, and 97 constraints, problems are : Problem set: 1 solved, 0 unsolved in 523 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 68/79 constraints, ReadFeed: 22/32 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 525ms 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:[96]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-01 in 21990 ms.
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[96]
// Phase 1: matrix 95 rows 87 cols
[2025-06-06 01:52:25] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 10000 steps (2240 resets) in 13 ms. (714 steps per ms)
BEST_FIRST walk for 10001 steps (1049 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:52:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:25] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:25] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-06 01:52:25] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-06 01:52:25] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:52:25] [INFO ] [Real]Added 38 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:52:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:25] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:25] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:25] [INFO ] [Nat]Absence check using state equation in 19 ms returned sat
[2025-06-06 01:52:25] [INFO ] [Nat]Added 38 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:52:25] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 8 ms.
[2025-06-06 01:52:25] [INFO ] Added : 15 causal constraints over 3 iterations in 36 ms. Result :sat
Minimization took 58 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 84 transition count 92
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 84 transition count 92
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 7 place count 84 transition count 91
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 10 place count 81 transition count 88
Iterating global reduction 1 with 3 rules applied. Total rules applied 13 place count 81 transition count 88
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 16 place count 78 transition count 84
Iterating global reduction 1 with 3 rules applied. Total rules applied 19 place count 78 transition count 84
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 21 place count 78 transition count 82
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 22 place count 77 transition count 81
Iterating global reduction 2 with 1 rules applied. Total rules applied 23 place count 77 transition count 81
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 24 place count 77 transition count 80
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 25 place count 76 transition count 79
Iterating global reduction 3 with 1 rules applied. Total rules applied 26 place count 76 transition count 79
Applied a total of 26 rules in 11 ms. Remains 76 /87 variables (removed 11) and now considering 79/95 (removed 16) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 76/87 places, 79/95 transitions.
// Phase 1: matrix 79 rows 76 cols
[2025-06-06 01:52:25] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 1000000 steps (224440 resets) in 760 ms. (1314 steps per ms)
BEST_FIRST walk for 1000000 steps (103012 resets) in 385 ms. (2590 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:52:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:27] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:27] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:27] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2025-06-06 01:52:27] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-06 01:52:27] [INFO ] [Real]Added 30 Read/Feed constraints in 4 ms returned sat
[2025-06-06 01:52:27] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:27] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:27] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:27] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2025-06-06 01:52:27] [INFO ] [Nat]Added 30 Read/Feed constraints in 5 ms returned sat
[2025-06-06 01:52:27] [INFO ] Computed and/alt/rep : 20/44/20 causal constraints (skipped 58 transitions) in 5 ms.
[2025-06-06 01:52:27] [INFO ] Added : 13 causal constraints over 3 iterations in 31 ms. Result :sat
Minimization took 51 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 76 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 79/79 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 79/79 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 76/76 places, 79/79 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 76/76 places, 79/79 transitions.
Applied a total of 0 rules in 3 ms. Remains 76 /76 variables (removed 0) and now considering 79/79 (removed 0) transitions.
[2025-06-06 01:52:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:27] [INFO ] Implicit Places using invariants in 51 ms returned []
[2025-06-06 01:52:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:27] [INFO ] State equation strengthened by 30 read => feed constraints.
[2025-06-06 01:52:27] [INFO ] Implicit Places using invariants and state equation in 110 ms returned []
Implicit Place search using SMT with State Equation took 161 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 01:52:27] [INFO ] Redundant transitions in 1 ms returned []
Running 78 sub problems to find dead transitions.
[2025-06-06 01:52:27] [INFO ] Invariant cache hit.
[2025-06-06 01:52:27] [INFO ] State equation strengthened by 30 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/75 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/75 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (OVERLAPS) 1/76 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/76 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (OVERLAPS) 79/155 variables, 76/80 constraints. Problems are: Problem set: 0 solved, 78 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/155 variables, 30/110 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/155 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 8 (OVERLAPS) 0/155 variables, 0/110 constraints. Problems are: Problem set: 0 solved, 78 unsolved
No progress, stopping.
After SMT solving in domain Real declared 155/155 variables, and 110 constraints, problems are : Problem set: 0 solved, 78 unsolved in 1885 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 76/76 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 78 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/75 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/75 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/75 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 3 (OVERLAPS) 1/76 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/76 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 5 (OVERLAPS) 79/155 variables, 76/80 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/155 variables, 30/110 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/155 variables, 78/188 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:32] [INFO ] Deduced a trap along path composed of 4 places in 21 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/155 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 78 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:35] [INFO ] Deduced a trap along path composed of 17 places in 26 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/155 variables, 1/190 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/155 variables, 0/190 constraints. Problems are: Problem set: 0 solved, 78 unsolved
At refinement iteration 11 (OVERLAPS) 0/155 variables, 0/190 constraints. Problems are: Problem set: 0 solved, 78 unsolved
No progress, stopping.
After SMT solving in domain Int declared 155/155 variables, and 190 constraints, problems are : Problem set: 0 solved, 78 unsolved in 13937 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 76/76 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 78/78 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 15852ms problems are : Problem set: 0 solved, 78 unsolved
Search for dead transitions found 0 dead transitions in 15854ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16029 ms. Remains : 76/76 places, 79/79 transitions.
[2025-06-06 01:52:43] [INFO ] Flatten gal took : 6 ms
[2025-06-06 01:52:43] [INFO ] Flatten gal took : 6 ms
[2025-06-06 01:52:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1585496811257338432.gal : 2 ms
[2025-06-06 01:52:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8343996162773069084.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/ReachabilityCardinality1585496811257338432.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8343996162773069084.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40000 steps (8986 resets) in 69 ms. (571 steps per ms) remains 2/2 properties

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/ReachabilityCardinality8343996162773069084.prop.
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 (4204 resets) in 71 ms. (555 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 229
BEST_FIRST walk for 40003 steps (4129 resets) in 48 ms. (816 steps per ms) remains 2/2 properties
Invariant property MIN0 does not hold.
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :229 after 1257
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1257 after 2991
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2991 after 3939
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :3939 after 7701
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :7701 after 37887
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :37887 after 205317
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :205317 after 1.40657e+06
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.40657e+06 after 1.51144e+07
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :1.51144e+07 after 1.8376e+08
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :1.8376e+08 after 2.63102e+09
Interrupted probabilistic random walk after 3165966 steps, run timeout after 3001 ms. (steps per millisecond=1054 ) properties seen :1 out of 2
Probabilistic random walk after 3165966 steps, saw 1469144 distinct states, run finished after 3001 ms. (steps per millisecond=1054 ) properties seen :1
[2025-06-06 01:52:46] [INFO ] Invariant cache hit.
[2025-06-06 01:52:46] [INFO ] State equation strengthened by 30 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) 37/38 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:46] [INFO ] Deduced a trap composed of 30 places in 33 ms of which 2 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 38/155 variables, and 2 constraints, problems are : Problem set: 1 solved, 0 unsolved in 63 ms.
Refiners :[Positive P Invariants (semi-flows): 1/2 constraints, Generalized P Invariants (flows): 0/2 constraints, State Equation: 0/76 constraints, ReadFeed: 0/30 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 68ms 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:[96]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-04 in 21158 ms.
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-08
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[10]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[10]
// Phase 1: matrix 95 rows 87 cols
[2025-06-06 01:52:46] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[10]
RANDOM walk for 10000 steps (2206 resets) in 11 ms. (833 steps per ms)
BEST_FIRST walk for 10000 steps (1042 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[10]
[2025-06-06 01:52:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:46] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:52:46] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:46] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2025-06-06 01:52:46] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:52:46] [INFO ] [Real]Added 38 Read/Feed constraints in 13 ms returned sat
[2025-06-06 01:52:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:52:46] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:46] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:46] [INFO ] [Nat]Absence check using state equation in 21 ms returned sat
[2025-06-06 01:52:46] [INFO ] [Nat]Added 38 Read/Feed constraints in 9 ms returned sat
[2025-06-06 01:52:46] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 8 ms.
[2025-06-06 01:52:46] [INFO ] Added : 20 causal constraints over 4 iterations in 58 ms. Result :sat
Minimization took 40 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[10]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 85 transition count 93
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 85 transition count 93
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 85 transition count 92
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 7 place count 83 transition count 90
Iterating global reduction 1 with 2 rules applied. Total rules applied 9 place count 83 transition count 90
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 11 place count 81 transition count 88
Iterating global reduction 1 with 2 rules applied. Total rules applied 13 place count 81 transition count 88
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 14 place count 81 transition count 87
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 15 place count 80 transition count 86
Iterating global reduction 2 with 1 rules applied. Total rules applied 16 place count 80 transition count 86
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 17 place count 80 transition count 85
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 18 place count 79 transition count 84
Iterating global reduction 3 with 1 rules applied. Total rules applied 19 place count 79 transition count 84
Applied a total of 19 rules in 24 ms. Remains 79 /87 variables (removed 8) and now considering 84/95 (removed 11) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 79/87 places, 84/95 transitions.
// Phase 1: matrix 84 rows 79 cols
[2025-06-06 01:52:46] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[10]
RANDOM walk for 1000000 steps (224540 resets) in 814 ms. (1226 steps per ms)
BEST_FIRST walk for 1000001 steps (103584 resets) in 411 ms. (2427 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[10]
[2025-06-06 01:52:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:48] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:52:48] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-06 01:52:48] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2025-06-06 01:52:48] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-06 01:52:48] [INFO ] [Real]Added 32 Read/Feed constraints in 13 ms returned sat
[2025-06-06 01:52:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:52:48] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:52:48] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:52:48] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-06 01:52:48] [INFO ] [Nat]Added 32 Read/Feed constraints in 8 ms returned sat
[2025-06-06 01:52:48] [INFO ] Computed and/alt/rep : 21/47/21 causal constraints (skipped 62 transitions) in 5 ms.
[2025-06-06 01:52:48] [INFO ] Added : 14 causal constraints over 3 iterations in 34 ms. Result :sat
Minimization took 31 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[10]
Support contains 1 out of 79 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 84/84 transitions.
Applied a total of 0 rules in 2 ms. Remains 79 /79 variables (removed 0) and now considering 84/84 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 79/79 places, 84/84 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 79/79 places, 84/84 transitions.
Applied a total of 0 rules in 3 ms. Remains 79 /79 variables (removed 0) and now considering 84/84 (removed 0) transitions.
[2025-06-06 01:52:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:48] [INFO ] Implicit Places using invariants in 47 ms returned []
[2025-06-06 01:52:48] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:52:48] [INFO ] State equation strengthened by 32 read => feed constraints.
[2025-06-06 01:52:48] [INFO ] Implicit Places using invariants and state equation in 112 ms returned []
Implicit Place search using SMT with State Equation took 185 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 01:52:48] [INFO ] Redundant transitions in 1 ms returned []
Running 83 sub problems to find dead transitions.
[2025-06-06 01:52:48] [INFO ] Invariant cache hit.
[2025-06-06 01:52:48] [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) 0/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/78 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 3 (OVERLAPS) 1/79 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 5 (OVERLAPS) 84/163 variables, 79/83 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/163 variables, 32/115 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/163 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 8 (OVERLAPS) 0/163 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 83 unsolved
No progress, stopping.
After SMT solving in domain Real declared 163/163 variables, and 115 constraints, problems are : Problem set: 0 solved, 83 unsolved in 2670 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 79/79 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 83/83 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 83 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/78 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 3 (OVERLAPS) 1/79 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 5 (OVERLAPS) 84/163 variables, 79/83 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/163 variables, 32/115 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/163 variables, 83/198 constraints. Problems are: Problem set: 0 solved, 83 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:52:54] [INFO ] Deduced a trap along path composed of 17 places in 25 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/163 variables, 1/199 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/163 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 83 unsolved
At refinement iteration 10 (OVERLAPS) 0/163 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 83 unsolved
No progress, stopping.
After SMT solving in domain Int declared 163/163 variables, and 199 constraints, problems are : Problem set: 0 solved, 83 unsolved in 15186 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 79/79 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 83/83 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 17878ms problems are : Problem set: 0 solved, 83 unsolved
Search for dead transitions found 0 dead transitions in 17878ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18071 ms. Remains : 79/79 places, 84/84 transitions.
[2025-06-06 01:53:06] [INFO ] Flatten gal took : 6 ms
[2025-06-06 01:53:06] [INFO ] Flatten gal took : 6 ms
[2025-06-06 01:53:06] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2466937840284117768.gal : 1 ms
[2025-06-06 01:53:06] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1147970081465298219.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/ReachabilityCardinality2466937840284117768.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1147970081465298219.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/ReachabilityCardinality1147970081465298219.prop.
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
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
RANDOM walk for 40000 steps (8945 resets) in 153 ms. (259 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40001 steps (4125 resets) in 26 ms. (1481 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :333 after 1569
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :1569 after 3885
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :3885 after 6249
BEST_FIRST walk for 40002 steps (4157 resets) in 44 ms. (888 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :6249 after 44391
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :44391 after 269999
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :269999 after 1.77766e+06
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.77766e+06 after 2.15849e+07
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :2.15849e+07 after 3.44503e+08
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :3.44503e+08 after 5.53722e+09
Interrupted probabilistic random walk after 3136773 steps, run timeout after 3001 ms. (steps per millisecond=1045 ) properties seen :1 out of 2
Probabilistic random walk after 3136773 steps, saw 1409115 distinct states, run finished after 3001 ms. (steps per millisecond=1045 ) properties seen :1
[2025-06-06 01:53:09] [INFO ] Invariant cache hit.
[2025-06-06 01:53:09] [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) 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) 57/60 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/60 variables, 3/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/60 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 98/158 variables, 69/77 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/158 variables, 29/106 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/158 variables, 0/106 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 5/163 variables, 2/108 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 163/163 variables, and 110 constraints, problems are : Problem set: 1 solved, 0 unsolved in 91 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 74/79 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 105ms 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:[10]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-08 in 23050 ms.
Starting property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-11
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:[96]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[96]
// Phase 1: matrix 95 rows 87 cols
[2025-06-06 01:53:09] [INFO ] Computed 4 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 10000 steps (2248 resets) in 9 ms. (1000 steps per ms)
BEST_FIRST walk for 10000 steps (989 resets) in 6 ms. (1428 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:53:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:53:09] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2025-06-06 01:53:09] [INFO ] [Real]Absence check using 2 positive and 2 generalized place invariants in 0 ms returned sat
[2025-06-06 01:53:09] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2025-06-06 01:53:09] [INFO ] State equation strengthened by 38 read => feed constraints.
[2025-06-06 01:53:09] [INFO ] [Real]Added 38 Read/Feed constraints in 13 ms returned sat
[2025-06-06 01:53:09] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2025-06-06 01:53:09] [INFO ] [Nat]Absence check using 2 positive place invariants in 2 ms returned sat
[2025-06-06 01:53:09] [INFO ] [Nat]Absence check using 2 positive and 2 generalized place invariants in 1 ms returned sat
[2025-06-06 01:53:09] [INFO ] [Nat]Absence check using state equation in 25 ms returned sat
[2025-06-06 01:53:09] [INFO ] [Nat]Added 38 Read/Feed constraints in 6 ms returned sat
[2025-06-06 01:53:09] [INFO ] Computed and/alt/rep : 23/54/23 causal constraints (skipped 71 transitions) in 7 ms.
[2025-06-06 01:53:09] [INFO ] Added : 16 causal constraints over 4 iterations in 44 ms. Result :sat
Minimization took 56 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 87 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 87/87 places, 95/95 transitions.
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 2 place count 85 transition count 93
Iterating global reduction 0 with 2 rules applied. Total rules applied 4 place count 85 transition count 93
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 6 place count 83 transition count 91
Iterating global reduction 0 with 2 rules applied. Total rules applied 8 place count 83 transition count 91
Discarding 2 places :
Symmetric choice reduction at 0 with 2 rule applications. Total rules 10 place count 81 transition count 88
Iterating global reduction 0 with 2 rules applied. Total rules applied 12 place count 81 transition count 88
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 14 place count 81 transition count 86
Applied a total of 14 rules in 10 ms. Remains 81 /87 variables (removed 6) and now considering 86/95 (removed 9) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 81/87 places, 86/95 transitions.
// Phase 1: matrix 86 rows 81 cols
[2025-06-06 01:53:09] [INFO ] Computed 4 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[96]
RANDOM walk for 1000000 steps (224499 resets) in 836 ms. (1194 steps per ms)
BEST_FIRST walk for 1000000 steps (103485 resets) in 417 ms. (2392 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[96]
[2025-06-06 01:53:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:53:11] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2025-06-06 01:53:11] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-06 01:53:11] [INFO ] [Real]Absence check using state equation in 23 ms returned sat
[2025-06-06 01:53:11] [INFO ] State equation strengthened by 34 read => feed constraints.
[2025-06-06 01:53:11] [INFO ] [Real]Added 34 Read/Feed constraints in 9 ms returned sat
[2025-06-06 01:53:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2025-06-06 01:53:11] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2025-06-06 01:53:11] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2025-06-06 01:53:11] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2025-06-06 01:53:11] [INFO ] [Nat]Added 34 Read/Feed constraints in 6 ms returned sat
[2025-06-06 01:53:11] [INFO ] Computed and/alt/rep : 21/48/21 causal constraints (skipped 64 transitions) in 6 ms.
[2025-06-06 01:53:11] [INFO ] Added : 14 causal constraints over 3 iterations in 34 ms. Result :sat
Minimization took 46 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[96]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[96]
Support contains 1 out of 81 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 86/86 transitions.
Applied a total of 0 rules in 7 ms. Remains 81 /81 variables (removed 0) and now considering 86/86 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 81/81 places, 86/86 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 81/81 places, 86/86 transitions.
Applied a total of 0 rules in 2 ms. Remains 81 /81 variables (removed 0) and now considering 86/86 (removed 0) transitions.
[2025-06-06 01:53:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:53:11] [INFO ] Implicit Places using invariants in 47 ms returned []
[2025-06-06 01:53:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-06-06 01:53:11] [INFO ] State equation strengthened by 34 read => feed constraints.
[2025-06-06 01:53:11] [INFO ] Implicit Places using invariants and state equation in 137 ms returned []
Implicit Place search using SMT with State Equation took 189 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2025-06-06 01:53:11] [INFO ] Redundant transitions in 1 ms returned []
Running 85 sub problems to find dead transitions.
[2025-06-06 01:53:11] [INFO ] Invariant cache hit.
[2025-06-06 01:53:11] [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) 0/80 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 1/81 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/81 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (OVERLAPS) 86/167 variables, 81/85 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/167 variables, 34/119 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/167 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (OVERLAPS) 0/167 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Real declared 167/167 variables, and 119 constraints, problems are : Problem set: 0 solved, 85 unsolved in 2527 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 81/81 constraints, ReadFeed: 34/34 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 85 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/80 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/80 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/80 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 1/81 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/81 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (OVERLAPS) 86/167 variables, 81/85 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/167 variables, 34/119 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/167 variables, 85/204 constraints. Problems are: Problem set: 0 solved, 85 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:53:17] [INFO ] Deduced a trap along path composed of 17 places in 27 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/167 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/167 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (OVERLAPS) 0/167 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Int declared 167/167 variables, and 205 constraints, problems are : Problem set: 0 solved, 85 unsolved in 21445 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 81/81 constraints, ReadFeed: 34/34 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 23995ms problems are : Problem set: 0 solved, 85 unsolved
Search for dead transitions found 0 dead transitions in 23999ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24197 ms. Remains : 81/81 places, 86/86 transitions.
[2025-06-06 01:53:35] [INFO ] Flatten gal took : 10 ms
[2025-06-06 01:53:35] [INFO ] Flatten gal took : 12 ms
[2025-06-06 01:53:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5146913309987135073.gal : 1 ms
[2025-06-06 01:53:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11662796028416995670.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/ReachabilityCardinality5146913309987135073.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11662796028416995670.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/ReachabilityCardinality11662796028416995670.prop.
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
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 321
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :321 after 1767
RANDOM walk for 40000 steps (9000 resets) in 146 ms. (272 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :1767 after 3411
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :3411 after 5763
BEST_FIRST walk for 40003 steps (4154 resets) in 88 ms. (449 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :5763 after 34863
BEST_FIRST walk for 40003 steps (4107 resets) in 118 ms. (336 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :34863 after 186525
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :186525 after 1.25273e+06
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.25273e+06 after 1.30259e+07
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :1.30259e+07 after 1.72016e+08
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :1.72016e+08 after 2.43045e+09
Interrupted probabilistic random walk after 3072708 steps, run timeout after 3001 ms. (steps per millisecond=1023 ) properties seen :1 out of 2
Probabilistic random walk after 3072708 steps, saw 1271124 distinct states, run finished after 3001 ms. (steps per millisecond=1023 ) properties seen :1
[2025-06-06 01:53:38] [INFO ] Invariant cache hit.
[2025-06-06 01:53:38] [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) 39/40 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/40 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 12/52 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/52 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/54 variables, 1/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/54 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 62/116 variables, 54/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:53:38] [INFO ] Deduced a trap composed of 24 places in 27 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/116 variables, 1/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/116 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/144 variables, 15/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/144 variables, 23/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/144 variables, 0/97 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 23/167 variables, 12/109 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/167 variables, 11/120 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-06 01:53:39] [INFO ] Deduced a trap composed of 11 places in 63 ms of which 5 ms to minimize.
Problem MAX0 is UNSAT
After SMT solving in domain Real declared 167/167 variables, and 121 constraints, problems are : Problem set: 1 solved, 0 unsolved in 214 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 81/81 constraints, ReadFeed: 34/34 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 218ms 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:[96]
Ending property specific reduction for SieveSingleMsgMbox-PT-d1m96-UpperBounds-11 in 29372 ms.
[2025-06-06 01:53:39] [INFO ] Flatten gal took : 13 ms
[2025-06-06 01:53:39] [INFO ] Applying decomposition
[2025-06-06 01:53:39] [INFO ] Flatten gal took : 5 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/graph6850681392089229794.txt' '-o' '/tmp/graph6850681392089229794.bin' '-w' '/tmp/graph6850681392089229794.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph6850681392089229794.bin' '-l' '-1' '-v' '-w' '/tmp/graph6850681392089229794.weights' '-q' '0' '-e' '0.001'
[2025-06-06 01:53:39] [INFO ] Decomposing Gal with order
[2025-06-06 01:53:39] [INFO ] Rewriting arrays to variables to allow decomposition.
[2025-06-06 01:53:39] [INFO ] Removed a total of 88 redundant transitions.
[2025-06-06 01:53:39] [INFO ] Flatten gal took : 128 ms
[2025-06-06 01:53:39] [INFO ] Fuse similar labels procedure discarded/fused a total of 54 labels/synchronizations in 8 ms.
[2025-06-06 01:53:39] [INFO ] Time to serialize gal into /tmp/UpperBounds1817853740881487835.gal : 3 ms
[2025-06-06 01:53:39] [INFO ] Time to serialize properties into /tmp/UpperBounds5451138784066743853.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/UpperBounds1817853740881487835.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds5451138784066743853.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 ...283
Loading property file /tmp/UpperBounds5451138784066743853.prop.
Detected timeout of ITS tools.
[2025-06-06 02:14:26] [INFO ] Flatten gal took : 6 ms
[2025-06-06 02:14:26] [INFO ] Time to serialize gal into /tmp/UpperBounds8242974777316219803.gal : 1 ms
[2025-06-06 02:14:26] [INFO ] Time to serialize properties into /tmp/UpperBounds7966385693698864736.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/UpperBounds8242974777316219803.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds7966385693698864736.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 ...304
Loading property file /tmp/UpperBounds7966385693698864736.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,2.9291e+20,704.78,10433152,2,76837,5,5.67845e+07,6,0,445,4.75472e+07,0
Total reachable state count : 292910140136524044256

Verifying 4 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 92
Bounds property SieveSingleMsgMbox-PT-d1m96-UpperBounds-01 :0 <= l943 <= 92
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-01 92 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

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-d1m96-UpperBounds-01,0,704.96,10445492,1,0,7,5.67845e+07,9,1,698,4.75472e+07,4
Min sum of variable value : 0
Maximum sum along a path : 47
Bounds property SieveSingleMsgMbox-PT-d1m96-UpperBounds-04 :0 <= l38 <= 47
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-04 47 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

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-d1m96-UpperBounds-04,0,705.527,10445492,1,0,8,5.67845e+07,10,1,919,4.75472e+07,5
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property SieveSingleMsgMbox-PT-d1m96-UpperBounds-08 :0 <= l922 <= 1
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-08 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

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-d1m96-UpperBounds-08,0,705.538,10467868,1,0,9,5.67845e+07,11,1,924,4.75472e+07,6
Min sum of variable value : 0
Maximum sum along a path : 92
Bounds property SieveSingleMsgMbox-PT-d1m96-UpperBounds-11 :0 <= l969 <= 92
FORMULA SieveSingleMsgMbox-PT-d1m96-UpperBounds-11 92 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

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-d1m96-UpperBounds-11,0,705.64,10467868,1,0,10,5.67845e+07,12,1,1082,4.75472e+07,7
Total runtime 2096376 ms.

BK_STOP 1749176773468

--------------------
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-d1m96"
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-d1m96, 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-174901994400445"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SieveSingleMsgMbox-PT-d1m96.tgz
mv SieveSingleMsgMbox-PT-d1m96 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 ;