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.r207-tall-177969919700083.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 Peterson-COL-3, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r207-tall-177969919700083
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 536K
-rw-r--r-- 1 mcc users 8.5K Mar 8 07:11 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 8 07:11 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 8 07:10 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 8 07:10 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.3K Mar 16 08:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 16 08:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 16 08:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 16 08:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 8 07:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 93K Mar 8 07:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Mar 8 07:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 120K Mar 8 07:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 16 08:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 16 08:29 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 43K 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 Peterson-COL-3-UpperBounds-00
FORMULA_NAME Peterson-COL-3-UpperBounds-01
FORMULA_NAME Peterson-COL-3-UpperBounds-02
FORMULA_NAME Peterson-COL-3-UpperBounds-03
FORMULA_NAME Peterson-COL-3-UpperBounds-04
FORMULA_NAME Peterson-COL-3-UpperBounds-05
FORMULA_NAME Peterson-COL-3-UpperBounds-06
FORMULA_NAME Peterson-COL-3-UpperBounds-07
FORMULA_NAME Peterson-COL-3-UpperBounds-08
FORMULA_NAME Peterson-COL-3-UpperBounds-09
FORMULA_NAME Peterson-COL-3-UpperBounds-10
FORMULA_NAME Peterson-COL-3-UpperBounds-11
FORMULA_NAME Peterson-COL-3-UpperBounds-12
FORMULA_NAME Peterson-COL-3-UpperBounds-13
FORMULA_NAME Peterson-COL-3-UpperBounds-14
FORMULA_NAME Peterson-COL-3-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779719729038

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Peterson-COL-3
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202505121319
[2026-05-25 14:35:30] [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 14:35:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 14:35:30] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-25 14:35:30] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-25 14:35:31] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 557 ms
[2026-05-25 14:35:31] [INFO ] Imported 11 HL places and 14 HL transitions for a total of 256 PT places and 396.0 transition bindings in 18 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Reduction of identical properties reduced properties to check from 16 to 8
[2026-05-25 14:35:31] [INFO ] Built PT skeleton of HLPN with 11 places and 14 transitions 42 arcs in 4 ms.
[2026-05-25 14:35:31] [INFO ] Skeletonized 8 HLPN properties in 0 ms.
Reduce places removed 2 places and 0 transitions.
// Phase 1: matrix 14 rows 9 cols
[2026-05-25 14:35:31] [INFO ] Computed 1 invariants in 3 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 3] Max Struct:[4, 4, 4, 4, 4, 4, 4, 3]
FORMULA Peterson-COL-3-UpperBounds-11 3 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-25 14:35:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 4 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-25 14:35:31] [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 14:35:31] [INFO ] [Nat]Absence check using 1 positive place invariants in 2 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-25 14:35:31] [INFO ] Added : 12 causal constraints over 4 iterations in 21 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-25 14:35:31] [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 14:35:31] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 14:35:31] [INFO ] Added : 11 causal constraints over 5 iterations in 17 ms. Result :sat
Minimization took 6 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-25 14:35:31] [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 14:35:31] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-25 14:35:31] [INFO ] Added : 11 causal constraints over 3 iterations in 30 ms. Result :sat
Minimization took 10 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using state equation in 3 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-25 14:35:31] [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 14:35:31] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-25 14:35:31] [INFO ] Added : 11 causal constraints over 4 iterations in 30 ms. Result :sat
Minimization took 5 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 0 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-25 14:35:31] [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 14:35:31] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2026-05-25 14:35:31] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2026-05-25 14:35:31] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-25 14:35:31] [INFO ] Added : 11 causal constraints over 3 iterations in 13 ms. Result :sat
Minimization took 4 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:31] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2026-05-25 14:35:32] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-25 14:35:32] [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 14:35:32] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2026-05-25 14:35:32] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-25 14:35:32] [INFO ] Added : 11 causal constraints over 4 iterations in 11 ms. Result :sat
Minimization took 4 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using 1 positive place invariants in 1 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using state equation in 4 ms returned sat
[2026-05-25 14:35:32] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-25 14:35:32] [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 14:35:32] [INFO ] [Nat]Absence check using 1 positive place invariants in 0 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Nat]Absence check using state equation in 5 ms returned sat
[2026-05-25 14:35:32] [INFO ] Computed and/alt/rep : 13/21/13 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-25 14:35:32] [INFO ] Added : 11 causal constraints over 5 iterations in 12 ms. Result :sat
Minimization took 5 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 4, 4]
Domain [Process(4), Tour(3), Process(4)] of place BeginLoop breaks symmetries in sort Process
Arc [2:1*[$i, (MOD (ADD $j 1) 3)]] contains successor/predecessor on variables of sort Tour
Symmetric sort wr.t. initial and guards and successors and join/free detected :Bool
Arc [1:1*[$i, 0]] contains constants of sort Bool
Transition Ask : constants on arcs in [[1:1*[$i, 0]]] introduces in Bool(2) partition with 1 elements that refines current partition to 2 subsets.
[2026-05-25 14:35:32] [INFO ] Unfolded HLPN to a Petri net with 256 places and 356 transitions 1112 arcs in 32 ms.
[2026-05-25 14:35:32] [INFO ] Unfolded 7 HLPN properties in 0 ms.
Deduced a syphon composed of 12 places in 2 ms
Reduce places removed 12 places and 24 transitions.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 4, 4]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 4, 4]
[2026-05-25 14:35:32] [INFO ] Flow matrix only has 308 transitions (discarded 24 similar events)
// Phase 1: matrix 308 rows 244 cols
[2026-05-25 14:35:32] [INFO ] Computed 15 invariants in 6 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[4, 4, 4, 4, 4, 4, 4]
RANDOM walk for 10000 steps (2 resets) in 47 ms. (208 steps per ms)
FORMULA Peterson-COL-3-UpperBounds-10 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-13 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-05 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-12 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-15 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-03 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-04 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-09 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-14 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-02 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-COL-3-UpperBounds-01 4 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 20002 steps (4 resets) in 23 ms. (833 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 3] Max Struct:[4, 4]
[2026-05-25 14:35:32] [INFO ] Flow matrix only has 308 transitions (discarded 24 similar events)
[2026-05-25 14:35:32] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using 11 positive place invariants in 5 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 2 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Real]Absence check using state equation in 80 ms returned sat
[2026-05-25 14:35:32] [INFO ] State equation strengthened by 57 read => feed constraints.
[2026-05-25 14:35:32] [INFO ] [Real]Added 57 Read/Feed constraints in 13 ms returned sat
[2026-05-25 14:35:32] [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 14:35:32] [INFO ] [Nat]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 2 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2026-05-25 14:35:32] [INFO ] [Nat]Added 57 Read/Feed constraints in 24 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:32] [INFO ] Deduced a trap composed of 13 places in 107 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:32] [INFO ] Deduced a trap composed of 9 places in 73 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:32] [INFO ] Deduced a trap composed of 9 places in 84 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 18 places in 73 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 35 places in 99 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 27 places in 73 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 13 places in 73 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 16 places in 87 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 31 places in 80 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 34 places in 80 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 29 places in 83 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:33] [INFO ] Deduced a trap composed of 26 places in 91 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 13 places in 82 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 35 places in 73 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 38 places in 75 ms of which 13 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 27 places in 82 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 38 places in 74 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 52 places in 62 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 56 places in 61 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:34] [INFO ] Deduced a trap composed of 53 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 45 places in 65 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 45 places in 70 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 56 places in 70 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 20 places in 91 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 9 places in 84 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 27 places in 82 ms of which 11 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 20 places in 90 ms of which 10 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 31 places in 65 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:35] [INFO ] Deduced a trap composed of 56 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:36] [INFO ] Deduced a trap composed of 49 places in 61 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:36] [INFO ] Deduced a trap composed of 41 places in 63 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:36] [INFO ] Deduced a trap composed of 44 places in 60 ms of which 7 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:36] [INFO ] Deduced a trap composed of 49 places in 71 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:36] [INFO ] Deduced a trap composed of 52 places in 64 ms of which 8 ms to minimize.
[2026-05-25 14:35:36] [INFO ] Trap strengthening (SAT) tested/added 34/34 trap constraints in 4356 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 14:35:37] [INFO ] [Real]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Real]Absence check using state equation in 72 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Real]Added 57 Read/Feed constraints in 11 ms returned sat
[2026-05-25 14:35:37] [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 14:35:37] [INFO ] [Nat]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 2 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Nat]Absence check using state equation in 70 ms returned sat
[2026-05-25 14:35:37] [INFO ] [Nat]Added 57 Read/Feed constraints in 19 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:37] [INFO ] Deduced a trap composed of 13 places in 74 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:37] [INFO ] Deduced a trap composed of 9 places in 76 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:37] [INFO ] Deduced a trap composed of 9 places in 79 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:37] [INFO ] Deduced a trap composed of 9 places in 78 ms of which 6 ms to minimize.
[2026-05-25 14:35:37] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 4 trap constraints in 368 ms
Current structural bounds on expressions (after SMT) : Max Seen:[1, 3] Max Struct:[4, 3]
FORMULA Peterson-COL-3-UpperBounds-06 3 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1] Max Struct:[4]
Support contains 4 out of 244 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 244/244 places, 332/332 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 96 transitions
Trivial Post-agglo rules discarded 96 transitions
Performed 96 trivial Post agglomeration. Transition count delta: 96
Iterating post reduction 0 with 96 rules applied. Total rules applied 96 place count 244 transition count 236
Reduce places removed 96 places and 0 transitions.
Iterating post reduction 1 with 96 rules applied. Total rules applied 192 place count 148 transition count 236
Performed 44 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 44 Pre rules applied. Total rules applied 192 place count 148 transition count 192
Deduced a syphon composed of 44 places in 1 ms
Reduce places removed 44 places and 0 transitions.
Iterating global reduction 2 with 88 rules applied. Total rules applied 280 place count 104 transition count 192
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: 12
Deduced a syphon composed of 12 places in 1 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 2 with 24 rules applied. Total rules applied 304 place count 92 transition count 180
Applied a total of 304 rules in 37 ms. Remains 92 /244 variables (removed 152) and now considering 180/332 (removed 152) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44 ms. Remains : 92/244 places, 180/332 transitions.
[2026-05-25 14:35:37] [INFO ] Flow matrix only has 156 transitions (discarded 24 similar events)
// Phase 1: matrix 156 rows 92 cols
[2026-05-25 14:35:37] [INFO ] Computed 15 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[4]
RANDOM walk for 1000000 steps (2 resets) in 1091 ms. (915 steps per ms)
BEST_FIRST walk for 1000001 steps (2 resets) in 370 ms. (2695 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[4]
[2026-05-25 14:35:39] [INFO ] Flow matrix only has 156 transitions (discarded 24 similar events)
[2026-05-25 14:35:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 14:35:39] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned sat
[2026-05-25 14:35:39] [INFO ] [Real]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:35:39] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-25 14:35:39] [INFO ] State equation strengthened by 57 read => feed constraints.
[2026-05-25 14:35:39] [INFO ] [Real]Added 57 Read/Feed constraints in 4 ms returned sat
[2026-05-25 14:35:39] [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 14:35:39] [INFO ] [Nat]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-05-25 14:35:39] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 1 ms returned sat
[2026-05-25 14:35:39] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-25 14:35:39] [INFO ] [Nat]Added 57 Read/Feed constraints in 8 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 7 places in 44 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 8 places in 43 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 8 places in 39 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 8 places in 50 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 10 places in 66 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 7 places in 60 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 12 places in 52 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 14 places in 45 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:39] [INFO ] Deduced a trap composed of 14 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 13 places in 47 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 13 places in 56 ms of which 12 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 9 places in 52 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 9 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 8 places in 43 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 9 places in 57 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 7 places in 51 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 12 places in 49 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 14 places in 45 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 14 places in 50 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 14 places in 50 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 18 places in 39 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 17 places in 45 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 19 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:40] [INFO ] Deduced a trap composed of 19 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 17 places in 46 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 19 places in 46 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 13 places in 51 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 19 places in 41 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 18 places in 40 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 18 places in 46 ms of which 4 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 18 places in 42 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 17 places in 43 ms of which 2 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-25 14:35:41] [INFO ] Deduced a trap composed of 17 places in 45 ms of which 4 ms to minimize.
[2026-05-25 14:35:41] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 34 trap constraints in 2213 ms
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[1]
FORMULA Peterson-COL-3-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-COL-3-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA Peterson-COL-3-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-25 14:35:41] [INFO ] Flatten gal took : 35 ms
[2026-05-25 14:35:41] [INFO ] Flatten gal took : 20 ms
[2026-05-25 14:35:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5708632919593857392.gal : 9 ms
[2026-05-25 14:35:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17918736233687038296.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/ReachabilityCardinality5708632919593857392.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17918736233687038296.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:188)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:343)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 11380 ms.

BK_STOP 1779719741806

--------------------
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="Peterson-COL-3"
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 Peterson-COL-3, 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 r207-tall-177969919700083"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Peterson-COL-3.tgz
mv Peterson-COL-3 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 ;