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.r063-smll-177946904200056.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)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is CloudDeployment-PT-2b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r063-smll-177946904200056
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 604K
-rw-r--r-- 1 mcc users 8.1K Mar 6 11:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Mar 6 11:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Mar 6 11:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 6 11:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:13 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 08:13 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:13 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 11:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 111K Mar 6 11:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Mar 6 11:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 6 11:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:13 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 166K 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 CloudDeployment-PT-2b-UpperBounds-00
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-01
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-02
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-03
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-04
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-05
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-06
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-07
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-08
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-09
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-10
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-11
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-12
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-13
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-14
FORMULA_NAME CloudDeployment-PT-2b-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779480156738

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudDeployment-PT-2b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-22 20:02:39] [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]
[2026-05-22 20:02:39] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 20:02:39] [INFO ] Load time of PNML (sax parser for PT used): 194 ms
[2026-05-22 20:02:39] [INFO ] Transformed 556 places.
[2026-05-22 20:02:39] [INFO ] Transformed 684 transitions.
[2026-05-22 20:02:39] [INFO ] Found NUPN structural information;
[2026-05-22 20:02:39] [INFO ] Parsed PT model containing 556 places and 684 transitions and 1987 arcs in 347 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 10 ms.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 684 rows 556 cols
[2026-05-22 20:02:39] [INFO ] Computed 9 invariants in 36 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (155 resets) in 100 ms. (99 steps per ms)
FORMULA CloudDeployment-PT-2b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70005 steps (245 resets) in 103 ms. (673 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
[2026-05-22 20:02:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:40] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 33 ms returned sat
[2026-05-22 20:02:41] [INFO ] [Real]Absence check using state equation in 609 ms returned sat
[2026-05-22 20:02:41] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 127 ms.
[2026-05-22 20:02:41] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:42] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 51 ms returned sat
[2026-05-22 20:02:42] [INFO ] [Nat]Absence check using state equation in 513 ms returned sat
[2026-05-22 20:02:42] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 120 ms.
[2026-05-22 20:02:46] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 0
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:47] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 46 ms returned sat
[2026-05-22 20:02:47] [INFO ] [Real]Absence check using state equation in 479 ms returned sat
[2026-05-22 20:02:47] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 88 ms.
[2026-05-22 20:02:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:48] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 30 ms returned sat
[2026-05-22 20:02:48] [INFO ] [Nat]Absence check using state equation in 381 ms returned sat
[2026-05-22 20:02:48] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 68 ms.
[2026-05-22 20:02:53] [INFO ] Added : 165 causal constraints over 33 iterations in 4357 ms. Result :unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:53] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 46 ms returned sat
[2026-05-22 20:02:53] [INFO ] [Real]Absence check using state equation in 425 ms returned sat
[2026-05-22 20:02:53] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 62 ms.
[2026-05-22 20:02:54] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:54] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 49 ms returned sat
[2026-05-22 20:02:55] [INFO ] [Nat]Absence check using state equation in 468 ms returned sat
[2026-05-22 20:02:55] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 54 ms.
[2026-05-22 20:02:59] [INFO ] Added : 180 causal constraints over 36 iterations in 4024 ms. Result :unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:02:59] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 47 ms returned sat
[2026-05-22 20:02:59] [INFO ] [Real]Absence check using state equation in 482 ms returned sat
[2026-05-22 20:02:59] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:00] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 46 ms returned sat
[2026-05-22 20:03:00] [INFO ] [Nat]Absence check using state equation in 377 ms returned sat
[2026-05-22 20:03:00] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 53 ms.
[2026-05-22 20:03:04] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 3
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:05] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 28 ms returned sat
[2026-05-22 20:03:05] [INFO ] [Real]Absence check using state equation in 323 ms returned sat
[2026-05-22 20:03:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:05] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 48 ms returned sat
[2026-05-22 20:03:06] [INFO ] [Nat]Absence check using state equation in 505 ms returned sat
[2026-05-22 20:03:06] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 60 ms.
Maximisation of solution failed !
Minimization took 2 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:10] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 29 ms returned sat
[2026-05-22 20:03:11] [INFO ] [Real]Absence check using state equation in 386 ms returned sat
[2026-05-22 20:03:11] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:11] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 29 ms returned sat
[2026-05-22 20:03:11] [INFO ] [Nat]Absence check using state equation in 374 ms returned sat
[2026-05-22 20:03:11] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 80 ms.
Maximisation of solution failed !
Minimization took 0 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:16] [INFO ] [Real]Absence check using 0 positive and 9 generalized place invariants in 36 ms returned sat
[2026-05-22 20:03:16] [INFO ] [Real]Absence check using state equation in 500 ms returned sat
[2026-05-22 20:03:17] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 70 ms.
[2026-05-22 20:03:17] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:03:17] [INFO ] [Nat]Absence check using 0 positive and 9 generalized place invariants in 39 ms returned sat
[2026-05-22 20:03:18] [INFO ] [Nat]Absence check using state equation in 407 ms returned sat
[2026-05-22 20:03:18] [INFO ] Computed and/alt/rep : 671/1398/671 causal constraints (skipped 12 transitions) in 53 ms.
Maximisation of solution failed !
Minimization took 1 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
FORMULA CloudDeployment-PT-2b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 556 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 556/556 places, 684/684 transitions.
Graph (trivial) has 564 edges and 556 vertex of which 168 / 556 are part of one of the 16 SCC in 5 ms
Free SCC test removed 152 places
Drop transitions (Empty/Sink Transition effects.) removed 202 transitions
Reduce isomorphic transitions removed 202 transitions.
Graph (complete) has 922 edges and 404 vertex of which 388 are kept as prefixes of interest. Removing 16 places using SCC suffix rule.2 ms
Discarding 16 places :
Also discarding 2 output transitions
Drop transitions (Output transitions of discarded places.) removed 2 transitions
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 200 transitions
Trivial Post-agglo rules discarded 200 transitions
Performed 200 trivial Post agglomeration. Transition count delta: 200
Iterating post reduction 0 with 208 rules applied. Total rules applied 210 place count 388 transition count 272
Reduce places removed 200 places and 0 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 1 with 203 rules applied. Total rules applied 413 place count 188 transition count 269
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 416 place count 185 transition count 269
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 8 Pre rules applied. Total rules applied 416 place count 185 transition count 261
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 3 with 16 rules applied. Total rules applied 432 place count 177 transition count 261
Discarding 57 places :
Symmetric choice reduction at 3 with 57 rule applications. Total rules 489 place count 120 transition count 204
Iterating global reduction 3 with 57 rules applied. Total rules applied 546 place count 120 transition count 204
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 548 place count 120 transition count 202
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 9 Pre rules applied. Total rules applied 548 place count 120 transition count 193
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 4 with 18 rules applied. Total rules applied 566 place count 111 transition count 193
Performed 30 Post agglomeration using F-continuation condition.Transition count delta: 30
Deduced a syphon composed of 30 places in 1 ms
Reduce places removed 30 places and 0 transitions.
Iterating global reduction 4 with 60 rules applied. Total rules applied 626 place count 81 transition count 163
Performed 13 Post agglomeration using F-continuation condition with reduction of 16 identical transitions.
Deduced a syphon composed of 13 places in 0 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 4 with 26 rules applied. Total rules applied 652 place count 68 transition count 186
Drop transitions (Empty/Sink Transition effects.) removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 4 with 5 rules applied. Total rules applied 657 place count 68 transition count 181
Drop transitions (Redundant composition of simpler transitions.) removed 27 transitions
Redundant transition composition rules discarded 27 transitions
Iterating global reduction 5 with 27 rules applied. Total rules applied 684 place count 68 transition count 154
Free-agglomeration rule applied 20 times with reduction of 2 identical transitions.
Iterating global reduction 5 with 20 rules applied. Total rules applied 704 place count 68 transition count 132
Reduce places removed 20 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 14 transitions
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 20 transitions.
Graph (complete) has 236 edges and 48 vertex of which 47 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.1 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 5 with 41 rules applied. Total rules applied 745 place count 47 transition count 112
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 6 with 1 rules applied. Total rules applied 746 place count 47 transition count 111
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 747 place count 46 transition count 108
Iterating global reduction 7 with 1 rules applied. Total rules applied 748 place count 46 transition count 108
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 7 with 14 rules applied. Total rules applied 762 place count 46 transition count 94
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 763 place count 45 transition count 93
Applied a total of 763 rules in 152 ms. Remains 45 /556 variables (removed 511) and now considering 93/684 (removed 591) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 168 ms. Remains : 45/556 places, 93/684 transitions.
[2026-05-22 20:03:23] [INFO ] Flow matrix only has 67 transitions (discarded 26 similar events)
// Phase 1: matrix 67 rows 45 cols
[2026-05-22 20:03:23] [INFO ] Computed 7 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 0, 0] Max Struct:[1, 1, 1]
FORMULA CloudDeployment-PT-2b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (27993 resets) in 1054 ms. (947 steps per ms)
FORMULA CloudDeployment-PT-2b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-2b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (7548 resets) in 674 ms. (1481 steps per ms)
Current structural bounds on expressions (after 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 )
[2026-05-22 20:03:25] [INFO ] Flatten gal took : 79 ms
[2026-05-22 20:03:25] [INFO ] Flatten gal took : 25 ms
[2026-05-22 20:03:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4082885583147130528.gal : 19 ms
[2026-05-22 20:03:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13766357993397713068.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/ReachabilityCardinality4082885583147130528.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13766357993397713068.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 46280 ms.

BK_STOP 1779480205440

--------------------
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="CloudDeployment-PT-2b"
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 CloudDeployment-PT-2b, 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 r063-smll-177946904200056"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-2b.tgz
mv CloudDeployment-PT-2b 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 ;