About the Execution of 2025-gold for FunctionPointer-PT-a002
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2026-input.r159-tall-177961079700001.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool gold2025
Input is FunctionPointer-PT-a002, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079700001
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 7.7K Mar 7 07:28 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Mar 7 07:28 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 7 07:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K Mar 7 07:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:20 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 10:20 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:20 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 10:20 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 7 07:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 140K Mar 7 07:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.8K Mar 7 07:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Mar 7 07:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:20 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:20 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 34K Mar 3 18:30 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of positive values
NUM_VECTOR
echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-00
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-01
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-02
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-03
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-04
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-05
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-06
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-07
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-08
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-09
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-10
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-11
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-12
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-13
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-14
FORMULA_NAME FunctionPointer-PT-a002-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1779699852887
Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FunctionPointer-PT-a002
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 09:04:14] [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]
[2026-05-25 09:04:14] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 09:04:14] [INFO ] Load time of PNML (sax parser for PT used): 58 ms
[2026-05-25 09:04:14] [INFO ] Transformed 40 places.
[2026-05-25 09:04:14] [INFO ] Transformed 70 transitions.
[2026-05-25 09:04:14] [INFO ] Parsed PT model containing 40 places and 70 transitions and 284 arcs in 153 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 4 transitions.
FORMULA FunctionPointer-PT-a002-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 09:04:14] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
// Phase 1: matrix 46 rows 34 cols
[2026-05-25 09:04:14] [INFO ] Computed 4 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, +inf, +inf, 1, 1, 1, +inf, 1, +inf, 2, 2, +inf, 1, +inf, +inf]
FORMULA FunctionPointer-PT-a002-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10000 steps (67 resets) in 30 ms. (322 steps per ms)
FORMULA FunctionPointer-PT-a002-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-11 2 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-10 2 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70006 steps (83 resets) in 89 ms. (777 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 18, 3, 9, 4, 3, 7] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 09:04:14] [INFO ] Flow matrix only has 46 transitions (discarded 20 similar events)
[2026-05-25 09:04:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:14] [INFO ] [Real]Absence check using 3 positive place invariants in 5 ms returned sat
[2026-05-25 09:04:14] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:14] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2026-05-25 09:04:14] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:14] [INFO ] [Real]Added 8 Read/Feed constraints in 5 ms returned sat
[2026-05-25 09:04:14] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:14] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:14] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:14] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-25 09:04:14] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:14] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 5 ms to minimize.
[2026-05-25 09:04:14] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 71 ms
[2026-05-25 09:04:14] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 6 ms.
[2026-05-25 09:04:15] [INFO ] Added : 14 causal constraints over 4 iterations in 45 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Added 8 Read/Feed constraints in 4 ms returned sat
[2026-05-25 09:04:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 44 ms of which 3 ms to minimize.
[2026-05-25 09:04:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 58 ms
[2026-05-25 09:04:15] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2026-05-25 09:04:15] [INFO ] Added : 14 causal constraints over 4 iterations in 31 ms. Result :sat
Minimization took 12 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-25 09:04:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 39 ms of which 3 ms to minimize.
[2026-05-25 09:04:15] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 48 ms
[2026-05-25 09:04:15] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 4 ms.
[2026-05-25 09:04:15] [INFO ] Added : 17 causal constraints over 4 iterations in 29 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 36 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 38 ms of which 2 ms to minimize.
[2026-05-25 09:04:15] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 84 ms
[2026-05-25 09:04:15] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2026-05-25 09:04:15] [INFO ] Added : 6 causal constraints over 2 iterations in 18 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using state equation in 18 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 5 ms.
[2026-05-25 09:04:15] [INFO ] Added : 16 causal constraints over 4 iterations in 34 ms. Result :sat
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-25 09:04:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:15] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 46 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:15] [INFO ] Deduced a trap composed of 7 places in 48 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:16] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:16] [INFO ] Deduced a trap composed of 10 places in 42 ms of which 2 ms to minimize.
[2026-05-25 09:04:16] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 218 ms
[2026-05-25 09:04:16] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 9 ms.
[2026-05-25 09:04:16] [INFO ] Added : 16 causal constraints over 4 iterations in 36 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:16] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:16] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 0 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:16] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:16] [INFO ] Deduced a trap composed of 7 places in 41 ms of which 3 ms to minimize.
[2026-05-25 09:04:16] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 46 ms
[2026-05-25 09:04:16] [INFO ] Computed and/alt/rep : 25/101/23 causal constraints (skipped 21 transitions) in 3 ms.
[2026-05-25 09:04:16] [INFO ] Added : 14 causal constraints over 4 iterations in 29 ms. Result :sat
Minimization took 11 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 18, 3, 9, 4, 3, 7] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4, 18, 3, 9, 4, 3, 8] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Support contains 7 out of 34 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 34/34 places, 66/66 transitions.
Graph (complete) has 118 edges and 34 vertex of which 31 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.0 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 31 transition count 65
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 30 transition count 63
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 30 transition count 63
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 6 place count 30 transition count 61
Drop transitions (Redundant composition of simpler transitions.) removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 8 place count 30 transition count 59
Applied a total of 8 rules in 30 ms. Remains 30 /34 variables (removed 4) and now considering 59/66 (removed 7) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38 ms. Remains : 30/34 places, 59/66 transitions.
[2026-05-25 09:04:16] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 7) seen :[2147483647, 2147483647, 2, 2147483647, 2147483647, 2, 2147483647]
Current structural bounds on expressions (after cover walk) : Max Seen:[+inf, +inf, 3, +inf, +inf, 3, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
[2026-05-25 09:04:16] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
// Phase 1: matrix 42 rows 30 cols
[2026-05-25 09:04:16] [INFO ] Computed 3 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[+inf, +inf, 3, +inf, +inf, 3, +inf] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 974 ms. (1025 steps per ms)
FORMULA FunctionPointer-PT-a002-UpperBounds-15 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-09 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-02 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FunctionPointer-PT-a002-UpperBounds-01 +inf TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 2000002 steps (4 resets) in 711 ms. (2808 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
[2026-05-25 09:04:18] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:18] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Real]Absence check using state equation in 13 ms returned sat
[2026-05-25 09:04:18] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:18] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-25 09:04:18] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 3 ms.
[2026-05-25 09:04:18] [INFO ] Added : 18 causal constraints over 4 iterations in 20 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:18] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:18] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:18] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:18] [INFO ] Deduced a trap composed of 6 places in 65 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:18] [INFO ] Deduced a trap composed of 6 places in 43 ms of which 3 ms to minimize.
[2026-05-25 09:04:18] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 124 ms
[2026-05-25 09:04:18] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 3 ms.
[2026-05-25 09:04:18] [INFO ] Added : 20 causal constraints over 5 iterations in 26 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
Support contains 2 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 3 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:18] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 2) seen :[2, 2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
[2026-05-25 09:04:18] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:18] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
RANDOM walk for 1000000 steps (2 resets) in 802 ms. (1245 steps per ms)
BEST_FIRST walk for 2000001 steps (4 resets) in 669 ms. (2985 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
[2026-05-25 09:04:20] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:20] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:20] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:20] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-25 09:04:20] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 3 ms.
[2026-05-25 09:04:20] [INFO ] Added : 18 causal constraints over 4 iterations in 23 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:20] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:20] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Nat]Absence check using state equation in 20 ms returned sat
[2026-05-25 09:04:20] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:20] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:20] [INFO ] Deduced a trap composed of 6 places in 45 ms of which 3 ms to minimize.
[2026-05-25 09:04:20] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 101 ms
[2026-05-25 09:04:20] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 5 ms.
[2026-05-25 09:04:20] [INFO ] Added : 20 causal constraints over 5 iterations in 32 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
Support contains 2 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 3 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 30/30 places, 59/59 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
[2026-05-25 09:04:20] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:20] [INFO ] Implicit Places using invariants in 35 ms returned []
[2026-05-25 09:04:20] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:20] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:20] [INFO ] Implicit Places using invariants and state equation in 50 ms returned []
Implicit Place search using SMT with State Equation took 87 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 09:04:20] [INFO ] Redundant transitions in 1 ms returned []
Running 57 sub problems to find dead transitions.
[2026-05-25 09:04:20] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:20] [INFO ] Invariant cache hit.
[2026-05-25 09:04:20] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 5 (OVERLAPS) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Real declared 72/72 variables, and 41 constraints, problems are : Problem set: 0 solved, 57 unsolved in 436 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 57/98 constraints. Problems are: Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:21] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:21] [INFO ] Deduced a trap along path composed of 3 places in 23 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/72 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 7 (OVERLAPS) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Int declared 72/72 variables, and 100 constraints, problems are : Problem set: 0 solved, 57 unsolved in 1384 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 1860ms problems are : Problem set: 0 solved, 57 unsolved
Search for dead transitions found 0 dead transitions in 1866ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1966 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:22] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 2) seen :[3, 3]
Current structural bounds on expressions (after cover walk) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
RANDOM walk for 40002 steps (8 resets) in 552 ms. (72 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 147 ms. (270 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 112 ms. (354 steps per ms) remains 1/2 properties
[2026-05-25 09:04:22] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:23] [INFO ] Invariant cache hit.
[2026-05-25 09:04:23] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:23] [INFO ] Flatten gal took : 37 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) 4/5 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2026-05-25 09:04:23] [INFO ] Flatten gal took : 9 ms
At refinement iteration 2 (INCLUDED_ONLY) 0/5 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 28/33 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/33 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2026-05-25 09:04:23] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13276175826034152998.gal : 5 ms
At refinement iteration 5 (INCLUDED_ONLY) 0/33 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 6/39 variables, 2/10 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/39 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/39 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2026-05-25 09:04:23] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4893003866717827364.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/ReachabilityCardinality13276175826034152998.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4893003866717827364.prop' '--nowitness' '--gen-order' 'FOLLOW'
At refinement iteration 9 (OVERLAPS) 27/66 variables, 17/29 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/66 variables, 1/30 constraints. Problems are: Problem set: 0 solved, 1 unsolved
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
At refinement iteration 11 (INCLUDED_ONLY) 0/66 variables, 7/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/66 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 6/72 variables, 4/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Loading property file /tmp/ReachabilityCardinality4893003866717827364.prop.
At refinement iteration 14 (INCLUDED_ONLY) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 10
At refinement iteration 15 (OVERLAPS) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 72/72 variables, and 41 constraints, problems are : Problem set: 0 solved, 1 unsolved in 82 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :10 after 56
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 9 fixpoint passes
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,555,0.029387,4580,2,397,8,4563,6,0,181,2623,0
Total reachable state count : 555
Verifying 1 reachability properties.
Invariant property MIN0 does not hold.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,1,0.029713,4708,2,31,8,4563,7,0,184,2623,0
After SMT solving in domain Int declared 1/72 variables, and 0 constraints, problems are : Problem set: 1 solved, 0 unsolved in 17 ms.
Refiners :[Positive P Invariants (semi-flows): 0/3 constraints, State Equation: 0/30 constraints, ReadFeed: 0/8 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 106ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3, 3] Max Struct:[+inf, +inf]
Starting property specific reduction for FunctionPointer-PT-a002-UpperBounds-06
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 09:04:23] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10000 steps (2 resets) in 10 ms. (909 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 8 ms. (1111 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[2] Max Struct:[+inf]
[2026-05-25 09:04:23] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:23] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:23] [INFO ] [Real]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 09:04:23] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 09:04:23] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:23] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:23] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:23] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2026-05-25 09:04:23] [INFO ] [Nat]Added 8 Read/Feed constraints in 2 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:23] [INFO ] Deduced a trap composed of 6 places in 35 ms of which 3 ms to minimize.
[2026-05-25 09:04:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 42 ms
[2026-05-25 09:04:23] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 4 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:23] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 2 ms to minimize.
[2026-05-25 09:04:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 37 ms
[2026-05-25 09:04:23] [INFO ] Added : 20 causal constraints over 5 iterations in 65 ms. Result :sat
Minimization took 11 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:23] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 1 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:23] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000000 steps (2 resets) in 706 ms. (1414 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 317 ms. (3144 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:24] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:24] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:24] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2026-05-25 09:04:24] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:24] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:24] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:24] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:24] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2026-05-25 09:04:24] [INFO ] [Nat]Added 8 Read/Feed constraints in 3 ms returned sat
[2026-05-25 09:04:24] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 3 ms.
[2026-05-25 09:04:24] [INFO ] Added : 18 causal constraints over 4 iterations in 19 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 30/30 places, 59/59 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
[2026-05-25 09:04:24] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:24] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-25 09:04:24] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:24] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:24] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 89 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 09:04:24] [INFO ] Redundant transitions in 1 ms returned []
Running 57 sub problems to find dead transitions.
[2026-05-25 09:04:24] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:24] [INFO ] Invariant cache hit.
[2026-05-25 09:04:24] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 5 (OVERLAPS) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Real declared 72/72 variables, and 41 constraints, problems are : Problem set: 0 solved, 57 unsolved in 364 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 57/98 constraints. Problems are: Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:25] [INFO ] Deduced a trap along path composed of 3 places in 27 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:25] [INFO ] Deduced a trap along path composed of 3 places in 15 ms of which 0 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/72 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 7 (OVERLAPS) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Int declared 72/72 variables, and 100 constraints, problems are : Problem set: 0 solved, 57 unsolved in 1304 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 1684ms problems are : Problem set: 0 solved, 57 unsolved
Search for dead transitions found 0 dead transitions in 1685ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1783 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:26] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:26] [INFO ] Flatten gal took : 11 ms
[2026-05-25 09:04:26] [INFO ] Flatten gal took : 7 ms
[2026-05-25 09:04:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10791551426293829526.gal : 1 ms
[2026-05-25 09:04:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7204144813781860060.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/ReachabilityCardinality10791551426293829526.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7204144813781860060.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/ReachabilityCardinality7204144813781860060.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 10
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :10 after 56
RANDOM walk for 40001 steps (8 resets) in 112 ms. (353 steps per ms) remains 1/1 properties
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 9 fixpoint passes
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,555,0.017508,4648,2,397,8,4563,6,0,181,2623,0
Total reachable state count : 555
Verifying 1 reachability properties.
Invariant property MIN0 does not hold.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,1,0.017781,4776,2,31,8,4563,7,0,184,2623,0
BEST_FIRST walk for 40003 steps (8 resets) in 73 ms. (540 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2490315 steps, run timeout after 3001 ms. (steps per millisecond=829 ) properties seen :0 out of 1
Probabilistic random walk after 2490315 steps, saw 1535787 distinct states, run finished after 3005 ms. (steps per millisecond=828 ) properties seen :0
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-a002-UpperBounds-06 in 6372 ms.
Starting property specific reduction for FunctionPointer-PT-a002-UpperBounds-14
Current structural bounds on expressions (Initially) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0] Max Struct:[+inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0] Max Struct:[+inf]
[2026-05-25 09:04:29] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[+inf]
RANDOM walk for 10001 steps (2 resets) in 9 ms. (1000 steps per ms)
BEST_FIRST walk for 10000 steps (2 resets) in 5 ms. (1666 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:29] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:29] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:29] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2026-05-25 09:04:29] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:29] [INFO ] [Real]Added 8 Read/Feed constraints in 2 ms returned sat
[2026-05-25 09:04:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 09:04:29] [INFO ] [Nat]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:29] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2026-05-25 09:04:29] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:29] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:29] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 2 ms to minimize.
[2026-05-25 09:04:29] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 76 ms
[2026-05-25 09:04:29] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 4 ms.
[2026-05-25 09:04:29] [INFO ] Added : 20 causal constraints over 5 iterations in 30 ms. Result :sat
Minimization took 12 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:29] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 0 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:29] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:29] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3] Max Struct:[+inf]
RANDOM walk for 1000001 steps (2 resets) in 728 ms. (1371 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 344 ms. (2898 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:30] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:30] [INFO ] [Real]Absence check using 3 positive place invariants in 1 ms returned sat
[2026-05-25 09:04:30] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-25 09:04:30] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:30] [INFO ] [Real]Added 8 Read/Feed constraints in 1 ms returned sat
[2026-05-25 09:04:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 09:04:30] [INFO ] [Nat]Absence check using 3 positive place invariants in 0 ms returned sat
[2026-05-25 09:04:30] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2026-05-25 09:04:30] [INFO ] [Nat]Added 8 Read/Feed constraints in 1 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:30] [INFO ] Deduced a trap composed of 6 places in 38 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:30] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 2 ms to minimize.
[2026-05-25 09:04:30] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 89 ms
[2026-05-25 09:04:30] [INFO ] Computed and/alt/rep : 25/108/23 causal constraints (skipped 17 transitions) in 4 ms.
[2026-05-25 09:04:31] [INFO ] Added : 20 causal constraints over 5 iterations in 34 ms. Result :sat
Minimization took 13 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[3] Max Struct:[+inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3] Max Struct:[+inf]
Support contains 1 out of 30 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 30/30 places, 59/59 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 30/30 places, 59/59 transitions.
Applied a total of 0 rules in 2 ms. Remains 30 /30 variables (removed 0) and now considering 59/59 (removed 0) transitions.
[2026-05-25 09:04:31] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:31] [INFO ] Implicit Places using invariants in 34 ms returned []
[2026-05-25 09:04:31] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 09:04:31] [INFO ] State equation strengthened by 8 read => feed constraints.
[2026-05-25 09:04:31] [INFO ] Implicit Places using invariants and state equation in 53 ms returned []
Implicit Place search using SMT with State Equation took 89 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 09:04:31] [INFO ] Redundant transitions in 1 ms returned []
Running 57 sub problems to find dead transitions.
[2026-05-25 09:04:31] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
[2026-05-25 09:04:31] [INFO ] Invariant cache hit.
[2026-05-25 09:04:31] [INFO ] State equation strengthened by 8 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 5 (OVERLAPS) 0/72 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Real declared 72/72 variables, and 41 constraints, problems are : Problem set: 0 solved, 57 unsolved in 351 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/30 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/30 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 2 (OVERLAPS) 42/72 variables, 30/33 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/72 variables, 8/41 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/72 variables, 57/98 constraints. Problems are: Problem set: 0 solved, 57 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:31] [INFO ] Deduced a trap along path composed of 3 places in 25 ms of which 1 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 09:04:31] [INFO ] Deduced a trap along path composed of 3 places in 16 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/72 variables, 2/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
At refinement iteration 7 (OVERLAPS) 0/72 variables, 0/100 constraints. Problems are: Problem set: 0 solved, 57 unsolved
No progress, stopping.
After SMT solving in domain Int declared 72/72 variables, and 100 constraints, problems are : Problem set: 0 solved, 57 unsolved in 1272 ms.
Refiners :[Positive P Invariants (semi-flows): 3/3 constraints, State Equation: 30/30 constraints, ReadFeed: 8/8 constraints, PredecessorRefiner: 57/57 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 2/2 constraints]
After SMT, in 1634ms problems are : Problem set: 0 solved, 57 unsolved
Search for dead transitions found 0 dead transitions in 1634ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1731 ms. Remains : 30/30 places, 59/59 transitions.
[2026-05-25 09:04:32] [INFO ] Flow matrix only has 42 transitions (discarded 17 similar events)
Starting Z3 with timeout 6000.0 s and query timeout 600000.0 ms
Found an invariant !
This invariant on transitions {3=1, 5=1, 20=1, 23=1, 31=1, 40=1}
Produces a positive solution :{}
Attempting to minimize the solution found.
Minimization OK=successtook 2 ms.
This minimized invariant on transitions {5=1, 20=1, 29=1, 38=1}
Produces a positive solution
Incomplete random walk after 10000 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :[2]
Current structural bounds on expressions (after cover walk) : Max Seen:[3] Max Struct:[+inf]
[2026-05-25 09:04:32] [INFO ] Flatten gal took : 9 ms
[2026-05-25 09:04:32] [INFO ] Flatten gal took : 7 ms
[2026-05-25 09:04:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10775181025527078049.gal : 2 ms
[2026-05-25 09:04:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16158395551027420740.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/ReachabilityCardinality10775181025527078049.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16158395551027420740.prop' '--nowitness' '--gen-order' 'FOLLOW'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality16158395551027420740.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 10
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :10 after 56
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :56 after 555
RANDOM walk for 40002 steps (8 resets) in 139 ms. (285 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (8 resets) in 34 ms. (1142 steps per ms) remains 1/1 properties
Invariant property MIN0 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 17 fixpoint passes
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,4567,0.049561,6056,2,743,9,13874,6,0,181,8512,0
Total reachable state count : 4567
Verifying 1 reachability properties.
Invariant property MIN0 does not hold.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,2,0.04996,6184,2,31,9,13874,7,0,184,8512,0
ITS tools runner thread asked to quit. Dying gracefully.
Interrupted probabilistic random walk after 2961900 steps, run timeout after 3001 ms. (steps per millisecond=986 ) properties seen :0 out of 1
Probabilistic random walk after 2961900 steps, saw 1813495 distinct states, run finished after 3001 ms. (steps per millisecond=986 ) properties seen :0
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[3] Max Struct:[+inf]
Ending property specific reduction for FunctionPointer-PT-a002-UpperBounds-14 in 6455 ms.
[2026-05-25 09:04:35] [INFO ] Flatten gal took : 7 ms
[2026-05-25 09:04:35] [INFO ] Applying decomposition
[2026-05-25 09:04:35] [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/graph16647074890049410890.txt' '-o' '/tmp/graph16647074890049410890.bin' '-w' '/tmp/graph16647074890049410890.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph16647074890049410890.bin' '-l' '-1' '-v' '-w' '/tmp/graph16647074890049410890.weights' '-q' '0' '-e' '0.001'
[2026-05-25 09:04:36] [INFO ] Decomposing Gal with order
[2026-05-25 09:04:36] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 09:04:36] [INFO ] Removed a total of 91 redundant transitions.
[2026-05-25 09:04:36] [INFO ] Flatten gal took : 37 ms
[2026-05-25 09:04:36] [INFO ] Fuse similar labels procedure discarded/fused a total of 15 labels/synchronizations in 5 ms.
[2026-05-25 09:04:36] [INFO ] Time to serialize gal into /tmp/UpperBounds13349348836400253859.gal : 2 ms
[2026-05-25 09:04:36] [INFO ] Time to serialize properties into /tmp/UpperBounds5724603917808660943.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/UpperBounds13349348836400253859.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds5724603917808660943.prop' '--nowitness'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...284
Loading property file /tmp/UpperBounds5724603917808660943.prop.
Detected timeout of ITS tools.
[2026-05-25 09:24:43] [INFO ] Flatten gal took : 8 ms
[2026-05-25 09:24:43] [INFO ] Time to serialize gal into /tmp/UpperBounds2589131614544076782.gal : 1 ms
[2026-05-25 09:24:43] [INFO ] Time to serialize properties into /tmp/UpperBounds2939738023114772927.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/UpperBounds2589131614544076782.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds2939738023114772927.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/UpperBounds2939738023114772927.prop.
Detected timeout of ITS tools.
[2026-05-25 09:44:50] [INFO ] Flatten gal took : 3 ms
[2026-05-25 09:44:50] [INFO ] Input system was already deterministic with 59 transitions.
[2026-05-25 09:44:50] [INFO ] Transformed 30 places.
[2026-05-25 09:44:50] [INFO ] Transformed 59 transitions.
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/pinvar' '/home/mcc/execution/gspn'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//../itstools/bin//..//greatspn//bin/RGMEDD2' '/home/mcc/execution/gspn' '-META' '-varord-only'
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2026-05-25 09:44:50] [INFO ] Time to serialize gal into /tmp/UpperBounds9411573133469358814.gal : 1 ms
[2026-05-25 09:44:50] [INFO ] Time to serialize properties into /tmp/UpperBounds4013988542676716184.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/UpperBounds9411573133469358814.gal' '-t' 'CGAL' '-reachable-file' '/tmp/UpperBounds4013988542676716184.prop' '--nowitness' '--load-order' '/home/mcc/execution/model.ord' '--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 ...349
Successfully loaded order from file /home/mcc/execution/model.ord
Loading property file /tmp/UpperBounds4013988542676716184.prop.
BK_TIME_CONFINEMENT_REACHED
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ 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="FunctionPointer-PT-a002"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
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 2-5973"
echo " Executing tool gold2025"
echo " Input is FunctionPointer-PT-a002, 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 r159-tall-177961079700001"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/FunctionPointer-PT-a002.tgz
mv FunctionPointer-PT-a002 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 '
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 ;