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-177946904300066.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 CloudDeployment-PT-7b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r063-smll-177946904300066
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 21M
-rw-r--r-- 1 mcc users 7.4K Mar 6 11:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 6 11:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Mar 6 11:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K 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 3.8K Mar 15 08:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 11:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Mar 6 11:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.2K Mar 6 11:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Mar 6 11:22 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:17 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:17 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 20M 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-7b-UpperBounds-00
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-01
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-02
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-03
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-04
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-05
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-06
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-07
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-08
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-09
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-10
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-11
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-12
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-13
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-14
FORMULA_NAME CloudDeployment-PT-7b-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779480507106

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudDeployment-PT-7b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-22 20:08:29] [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 20:08:29] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 20:08:31] [INFO ] Load time of PNML (sax parser for PT used): 1676 ms
[2026-05-22 20:08:31] [INFO ] Transformed 2271 places.
[2026-05-22 20:08:31] [INFO ] Transformed 19752 transitions.
[2026-05-22 20:08:31] [INFO ] Found NUPN structural information;
[2026-05-22 20:08:31] [INFO ] Parsed PT model containing 2271 places and 19752 transitions and 389666 arcs in 2116 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 18 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 19752 rows 2271 cols
[2026-05-22 20:08:33] [INFO ] Computed 29 invariants in 969 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 (40 resets) in 602 ms. (16 steps per ms)
FORMULA CloudDeployment-PT-7b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70007 steps (27 resets) in 206 ms. (338 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 20:08:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:08:36] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 237 ms returned sat
[2026-05-22 20:08:39] [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: Broken pipe ... 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: Broken pipe ...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:854)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2252)
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 20:08:40] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 127 ms returned sat
[2026-05-22 20:08:44] [INFO ] [Real]Absence check using state equation in 3890 ms returned sat
[2026-05-22 20:08:44] [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 20:08:45] [INFO ] [Nat]Absence check using 0 positive and 29 generalized place invariants in 150 ms returned sat
[2026-05-22 20:08:49] [INFO ] [Nat]Absence check using state equation in 4259 ms returned unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:08:50] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 131 ms returned sat
[2026-05-22 20:08:54] [INFO ] [Real]Absence check using state equation in 3930 ms returned sat
[2026-05-22 20:08:54] [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 20:08:55] [INFO ] [Nat]Absence check using 0 positive and 29 generalized place invariants in 171 ms returned sat
[2026-05-22 20:08:59] [INFO ] [Nat]Absence check using state equation in 3922 ms returned sat
0timeout
^^^^^^^^
(error "Invalid token: 0timeout")
[2026-05-22 20:09:00] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed... while checking expression at index 2
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:957)
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 20:09:00] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 128 ms returned sat
[2026-05-22 20:09:04] [INFO ] [Real]Absence check using state equation in 3631 ms returned sat
[2026-05-22 20:09:05] [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 20:09:05] [INFO ] [Nat]Absence check using 0 positive and 29 generalized place invariants in 129 ms returned sat
[2026-05-22 20:09:09] [INFO ] [Nat]Absence check using state equation in 3773 ms returned sat
[2026-05-22 20:09:10] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed... while checking expression at index 3
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:957)
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 20:09:11] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 124 ms returned sat
[2026-05-22 20:09:14] [INFO ] [Real]Absence check using state equation in 3604 ms returned sat
[2026-05-22 20:09:15] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 20:09:16] [INFO ] [Nat]Absence check using 0 positive and 29 generalized place invariants in 133 ms returned sat
[2026-05-22 20:09:19] [INFO ] [Nat]Absence check using state equation in 3550 ms returned sat
[2026-05-22 20:09:20] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")... while checking expression at index 4
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:957)
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 20:09:21] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 95 ms returned sat
[2026-05-22 20:09:25] [INFO ] [Real]Absence check using state equation in 3813 ms returned sat
[2026-05-22 20:09:25] [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 20:09:26] [INFO ] [Nat]Absence check using 0 positive and 29 generalized place invariants in 94 ms returned sat
[2026-05-22 20:09:29] [INFO ] [Nat]Absence check using state equation in 3634 ms returned sat
[2026-05-22 20:09:30] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed... while checking expression at index 5
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:957)
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 20:09:31] [INFO ] [Real]Absence check using 0 positive and 29 generalized place invariants in 189 ms returned sat
[2026-05-22 20:09:35] [INFO ] [Real]Absence check using state equation in 4039 ms returned unknown
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]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
Support contains 7 out of 2271 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2271/2271 places, 19752/19752 transitions.
Graph (trivial) has 2277 edges and 2271 vertex of which 572 / 2271 are part of one of the 55 SCC in 17 ms
Free SCC test removed 517 places
Drop transitions (Empty/Sink Transition effects.) removed 17017 transitions
Reduce isomorphic transitions removed 17017 transitions.
Graph (complete) has 5490 edges and 1754 vertex of which 1703 are kept as prefixes of interest. Removing 51 places using SCC suffix rule.15 ms
Discarding 51 places :
Also discarding 7 output transitions
Drop transitions (Output transitions of discarded places.) removed 7 transitions
Drop transitions (Empty/Sink Transition effects.) removed 28 transitions
Reduce isomorphic transitions removed 28 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 808 transitions
Trivial Post-agglo rules discarded 808 transitions
Performed 808 trivial Post agglomeration. Transition count delta: 808
Iterating post reduction 0 with 836 rules applied. Total rules applied 838 place count 1703 transition count 1892
Reduce places removed 808 places and 0 transitions.
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Iterating post reduction 1 with 815 rules applied. Total rules applied 1653 place count 895 transition count 1885
Reduce places removed 7 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 1661 place count 888 transition count 1884
Performed 28 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 28 Pre rules applied. Total rules applied 1661 place count 888 transition count 1856
Deduced a syphon composed of 28 places in 2 ms
Reduce places removed 28 places and 0 transitions.
Iterating global reduction 3 with 56 rules applied. Total rules applied 1717 place count 860 transition count 1856
Discarding 417 places :
Symmetric choice reduction at 3 with 417 rule applications. Total rules 2134 place count 443 transition count 1439
Iterating global reduction 3 with 417 rules applied. Total rules applied 2551 place count 443 transition count 1439
Ensure Unique test removed 42 transitions
Reduce isomorphic transitions removed 42 transitions.
Iterating post reduction 3 with 42 rules applied. Total rules applied 2593 place count 443 transition count 1397
Performed 35 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 35 Pre rules applied. Total rules applied 2593 place count 443 transition count 1362
Deduced a syphon composed of 35 places in 13 ms
Reduce places removed 35 places and 0 transitions.
Iterating global reduction 4 with 70 rules applied. Total rules applied 2663 place count 408 transition count 1362
Discarding 5 places :
Symmetric choice reduction at 4 with 5 rule applications. Total rules 2668 place count 403 transition count 1357
Iterating global reduction 4 with 5 rules applied. Total rules applied 2673 place count 403 transition count 1357
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 2677 place count 399 transition count 1353
Iterating global reduction 4 with 4 rules applied. Total rules applied 2681 place count 399 transition count 1353
Discarding 3 places :
Symmetric choice reduction at 4 with 3 rule applications. Total rules 2684 place count 396 transition count 1350
Iterating global reduction 4 with 3 rules applied. Total rules applied 2687 place count 396 transition count 1350
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 2689 place count 394 transition count 1348
Iterating global reduction 4 with 2 rules applied. Total rules applied 2691 place count 394 transition count 1348
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 2692 place count 393 transition count 1347
Iterating global reduction 4 with 1 rules applied. Total rules applied 2693 place count 393 transition count 1347
Performed 99 Post agglomeration using F-continuation condition.Transition count delta: 99
Deduced a syphon composed of 99 places in 6 ms
Reduce places removed 99 places and 0 transitions.
Iterating global reduction 4 with 198 rules applied. Total rules applied 2891 place count 294 transition count 1248
Performed 44 Post agglomeration using F-continuation condition with reduction of 28 identical transitions.
Deduced a syphon composed of 44 places in 2 ms
Reduce places removed 44 places and 0 transitions.
Iterating global reduction 4 with 88 rules applied. Total rules applied 2979 place count 250 transition count 1564
Drop transitions (Empty/Sink Transition effects.) removed 22 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 29 transitions.
Iterating post reduction 4 with 29 rules applied. Total rules applied 3008 place count 250 transition count 1535
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 3009 place count 249 transition count 1512
Iterating global reduction 5 with 1 rules applied. Total rules applied 3010 place count 249 transition count 1512
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: -84
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 5 with 14 rules applied. Total rules applied 3024 place count 242 transition count 1596
Drop transitions (Redundant composition of simpler transitions.) removed 291 transitions
Redundant transition composition rules discarded 291 transitions
Iterating global reduction 5 with 291 rules applied. Total rules applied 3315 place count 242 transition count 1305
Free-agglomeration rule applied 69 times with reduction of 42 identical transitions.
Iterating global reduction 5 with 69 rules applied. Total rules applied 3384 place count 242 transition count 1194
Reduce places removed 69 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 187 transitions
Ensure Unique test removed 84 transitions
Reduce isomorphic transitions removed 271 transitions.
Iterating post reduction 5 with 340 rules applied. Total rules applied 3724 place count 173 transition count 923
Discarding 5 places :
Symmetric choice reduction at 6 with 5 rule applications. Total rules 3729 place count 168 transition count 883
Iterating global reduction 6 with 5 rules applied. Total rules applied 3734 place count 168 transition count 883
Drop transitions (Redundant composition of simpler transitions.) removed 147 transitions
Redundant transition composition rules discarded 147 transitions
Iterating global reduction 6 with 147 rules applied. Total rules applied 3881 place count 168 transition count 736
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 6 with 2 rules applied. Total rules applied 3883 place count 168 transition count 736
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 6 with 1 rules applied. Total rules applied 3884 place count 167 transition count 735
Applied a total of 3884 rules in 1106 ms. Remains 167 /2271 variables (removed 2104) and now considering 735/19752 (removed 19017) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1119 ms. Remains : 167/2271 places, 735/19752 transitions.
[2026-05-22 20:09:36] [INFO ] Flow matrix only has 343 transitions (discarded 392 similar events)
// Phase 1: matrix 343 rows 167 cols
[2026-05-22 20:09:36] [INFO ] Computed 28 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (10295 resets) in 2766 ms. (361 steps per ms)
FORMULA CloudDeployment-PT-7b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-7b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (1206 resets) in 729 ms. (1369 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-22 20:09:40] [INFO ] Flow matrix only has 343 transitions (discarded 392 similar events)
[2026-05-22 20:09:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:40] [INFO ] [Real]Absence check using 7 positive place invariants in 7 ms returned sat
[2026-05-22 20:09:40] [INFO ] [Real]Absence check using 7 positive and 21 generalized place invariants in 15 ms returned sat
[2026-05-22 20:09:40] [INFO ] [Real]Absence check using state equation in 184 ms returned sat
[2026-05-22 20:09:40] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 20:09:40] [INFO ] [Real]Added 9 Read/Feed constraints in 22 ms returned sat
[2026-05-22 20:09:40] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:40] [INFO ] [Nat]Absence check using 7 positive place invariants in 8 ms returned sat
[2026-05-22 20:09:40] [INFO ] [Nat]Absence check using 7 positive and 21 generalized place invariants in 12 ms returned sat
[2026-05-22 20:09:40] [INFO ] [Nat]Absence check using state equation in 177 ms returned sat
[2026-05-22 20:09:40] [INFO ] [Nat]Added 9 Read/Feed constraints in 21 ms returned sat
[2026-05-22 20:09:40] [INFO ] Computed and/alt/rep : 200/490/200 causal constraints (skipped 94 transitions) in 60 ms.
[2026-05-22 20:09:41] [INFO ] Added : 21 causal constraints over 5 iterations in 295 ms. Result :sat
Minimization took 153 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 167 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p1660) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 167/167 places, 734/734 transitions.
Graph (trivial) has 63 edges and 167 vertex of which 4 / 167 are part of one of the 2 SCC in 1 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 165 transition count 729
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 164 transition count 729
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 3 place count 164 transition count 728
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 5 place count 163 transition count 728
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 11 place count 160 transition count 725
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 13 place count 160 transition count 723
Free-agglomeration rule applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 14 place count 160 transition count 722
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 3 with 9 rules applied. Total rules applied 23 place count 159 transition count 714
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 24 place count 158 transition count 706
Iterating global reduction 4 with 1 rules applied. Total rules applied 25 place count 158 transition count 706
Applied a total of 25 rules in 112 ms. Remains 158 /167 variables (removed 9) and now considering 706/734 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 113 ms. Remains : 158/167 places, 706/734 transitions.
[2026-05-22 20:09:41] [INFO ] Flow matrix only has 314 transitions (discarded 392 similar events)
// Phase 1: matrix 314 rows 158 cols
[2026-05-22 20:09:41] [INFO ] Computed 29 invariants in 2 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (11033 resets) in 2981 ms. (335 steps per ms)
BEST_FIRST walk for 1000001 steps (1232 resets) in 698 ms. (1430 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-22 20:09:45] [INFO ] Flow matrix only has 314 transitions (discarded 392 similar events)
[2026-05-22 20:09:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:45] [INFO ] [Real]Absence check using 29 positive place invariants in 20 ms returned sat
[2026-05-22 20:09:45] [INFO ] [Real]Absence check using state equation in 157 ms returned sat
[2026-05-22 20:09:45] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 20:09:45] [INFO ] [Real]Added 9 Read/Feed constraints in 13 ms returned sat
[2026-05-22 20:09:45] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:45] [INFO ] [Nat]Absence check using 29 positive place invariants in 19 ms returned sat
[2026-05-22 20:09:45] [INFO ] [Nat]Absence check using state equation in 161 ms returned sat
[2026-05-22 20:09:45] [INFO ] [Nat]Added 9 Read/Feed constraints in 12 ms returned sat
[2026-05-22 20:09:45] [INFO ] Computed and/alt/rep : 220/773/220 causal constraints (skipped 45 transitions) in 60 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 20:09:46] [INFO ] Deduced a trap composed of 3 places in 261 ms of which 20 ms to minimize.
[2026-05-22 20:09:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 310 ms
[2026-05-22 20:09:46] [INFO ] Added : 25 causal constraints over 6 iterations in 625 ms. Result :sat
Minimization took 60 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 158 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 158/158 places, 706/706 transitions.
Applied a total of 0 rules in 27 ms. Remains 158 /158 variables (removed 0) and now considering 706/706 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 158/158 places, 706/706 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 158/158 places, 706/706 transitions.
Applied a total of 0 rules in 15 ms. Remains 158 /158 variables (removed 0) and now considering 706/706 (removed 0) transitions.
[2026-05-22 20:09:46] [INFO ] Flow matrix only has 314 transitions (discarded 392 similar events)
[2026-05-22 20:09:46] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:47] [INFO ] Implicit Places using invariants in 567 ms returned [76, 77]
[2026-05-22 20:09:47] [INFO ] Actually due to overlaps returned [76]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 570 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 157/158 places, 706/706 transitions.
Graph (trivial) has 62 edges and 157 vertex of which 3 / 157 are part of one of the 1 SCC in 1 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 18 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 155 transition count 687
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 3 place count 154 transition count 687
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 4 Pre rules applied. Total rules applied 3 place count 154 transition count 683
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 2 with 8 rules applied. Total rules applied 11 place count 150 transition count 683
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 15 place count 148 transition count 681
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 17 place count 148 transition count 679
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 18 place count 147 transition count 671
Iterating global reduction 2 with 1 rules applied. Total rules applied 19 place count 147 transition count 671
Free-agglomeration rule applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 20 place count 147 transition count 670
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 21 place count 146 transition count 670
Applied a total of 21 rules in 64 ms. Remains 146 /157 variables (removed 11) and now considering 670/706 (removed 36) transitions.
[2026-05-22 20:09:47] [INFO ] Flow matrix only has 292 transitions (discarded 378 similar events)
// Phase 1: matrix 292 rows 146 cols
[2026-05-22 20:09:47] [INFO ] Computed 28 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:47] [INFO ] Implicit Places using invariants in 253 ms returned [76]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 257 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 2 : 145/158 places, 670/706 transitions.
Graph (trivial) has 53 edges and 145 vertex of which 4 / 145 are part of one of the 1 SCC in 0 ms
Free SCC test removed 3 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 19 transitions.
Applied a total of 1 rules in 16 ms. Remains 142 /145 variables (removed 3) and now considering 651/670 (removed 19) transitions.
[2026-05-22 20:09:47] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
// Phase 1: matrix 287 rows 142 cols
[2026-05-22 20:09:47] [INFO ] Computed 27 invariants in 1 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:47] [INFO ] Implicit Places using invariants in 195 ms returned []
[2026-05-22 20:09:47] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:47] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:47] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 20:09:48] [INFO ] Implicit Places using invariants and state equation in 457 ms returned []
Implicit Place search using SMT with State Equation took 655 ms to find 0 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 3 : 142/158 places, 651/706 transitions.
Finished structural reductions in REACHABILITY mode , in 3 iterations and 1582 ms. Remains : 142/158 places, 651/706 transitions.
[2026-05-22 20:09:48] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:48] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (11869 resets) in 2599 ms. (384 steps per ms)
BEST_FIRST walk for 1000001 steps (1339 resets) in 663 ms. (1506 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-22 20:09:51] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:51] [INFO ] [Real]Absence check using 27 positive place invariants in 11 ms returned sat
[2026-05-22 20:09:51] [INFO ] [Real]Absence check using state equation in 94 ms returned sat
[2026-05-22 20:09:51] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 20:09:51] [INFO ] [Real]Added 9 Read/Feed constraints in 10 ms returned sat
[2026-05-22 20:09:51] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-22 20:09:51] [INFO ] [Nat]Absence check using 27 positive place invariants in 11 ms returned sat
[2026-05-22 20:09:51] [INFO ] [Nat]Absence check using state equation in 91 ms returned sat
[2026-05-22 20:09:51] [INFO ] [Nat]Added 9 Read/Feed constraints in 9 ms returned sat
[2026-05-22 20:09:51] [INFO ] Computed and/alt/rep : 197/678/197 causal constraints (skipped 41 transitions) in 46 ms.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 20:09:51] [INFO ] Deduced a trap composed of 3 places in 161 ms of which 9 ms to minimize.
[2026-05-22 20:09:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 188 ms
[2026-05-22 20:09:52] [INFO ] Added : 22 causal constraints over 6 iterations in 365 ms. Result :sat
Minimization took 105 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 142 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 142/142 places, 651/651 transitions.
Applied a total of 0 rules in 21 ms. Remains 142 /142 variables (removed 0) and now considering 651/651 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 142/142 places, 651/651 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 142/142 places, 651/651 transitions.
Applied a total of 0 rules in 22 ms. Remains 142 /142 variables (removed 0) and now considering 651/651 (removed 0) transitions.
[2026-05-22 20:09:52] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:52] [INFO ] Implicit Places using invariants in 355 ms returned []
[2026-05-22 20:09:52] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 20:09:52] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 20:09:53] [INFO ] Implicit Places using invariants and state equation in 699 ms returned []
Implicit Place search using SMT with State Equation took 1057 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-22 20:09:53] [INFO ] Redundant transitions in 42 ms returned []
Running 602 sub problems to find dead transitions.
[2026-05-22 20:09:53] [INFO ] Flow matrix only has 287 transitions (discarded 364 similar events)
[2026-05-22 20:09:53] [INFO ] Invariant cache hit.
[2026-05-22 20:09:53] [INFO ] State equation strengthened by 9 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/134 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/134 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 2 (OVERLAPS) 8/142 variables, 21/27 constraints. Problems are: Problem set: 0 solved, 602 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 20:10:06] [INFO ] Deduced a trap composed of 5 places in 135 ms of which 7 ms to minimize.
At refinement iteration 3 (INCLUDED_ONLY) 0/142 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/142 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 5 (OVERLAPS) 287/429 variables, 142/170 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/429 variables, 9/179 constraints. Problems are: Problem set: 0 solved, 602 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 429/429 variables, and 179 constraints, problems are : Problem set: 0 solved, 602 unsolved in 30045 ms.
Refiners :[Positive P Invariants (semi-flows): 27/27 constraints, State Equation: 142/142 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 602/600 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 602 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/134 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/134 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 2 (OVERLAPS) 8/142 variables, 21/27 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/142 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/142 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 5 (OVERLAPS) 287/429 variables, 142/170 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/429 variables, 9/179 constraints. Problems are: Problem set: 0 solved, 602 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/429 variables, 600/779 constraints. Problems are: Problem set: 0 solved, 602 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 429/429 variables, and 779 constraints, problems are : Problem set: 0 solved, 602 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 27/27 constraints, State Equation: 142/142 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 602/600 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61377ms problems are : Problem set: 0 solved, 602 unsolved
Search for dead transitions found 0 dead transitions in 61400ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 62544 ms. Remains : 142/142 places, 651/651 transitions.
RANDOM walk for 40000 steps (468 resets) in 1024 ms. (39 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (51 resets) in 241 ms. (165 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (50 resets) in 280 ms. (142 steps per ms) remains 2/2 properties
[2026-05-22 20:10:55] [INFO ] Flatten gal took : 292 ms
[2026-05-22 20:10:55] [INFO ] Flatten gal took : 131 ms
[2026-05-22 20:10:55] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6308443022468648050.gal : 88 ms
[2026-05-22 20:10:55] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13423094413492250580.prop : 2 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/ReachabilityCardinality6308443022468648050.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13423094413492250580.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/ReachabilityCardinality13423094413492250580.prop.
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :6 after 9
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :9 after 15
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :15 after 39
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :39 after 55
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :55 after 914
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :914 after 194394
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :194394 after 392948
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :392948 after 3.91557e+07
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,9.78743e+08,1.17137,35164,2,5511,14,147994,8,0,1201,98748,0
Total reachable state count : 978742835

Verifying 2 reachability properties.
Reachability property MAX0 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MAX0,8,1.17251,35164,2,223,14,147994,8,0,1203,98748,0
Invariant property MIN0 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
MIN0,8,1.17309,35164,2,223,14,147994,8,0,1203,98748,0
Interrupted probabilistic random walk after 373396 steps, run timeout after 3001 ms. (steps per millisecond=124 ) properties seen :0 out of 2
Probabilistic random walk after 373396 steps, saw 67076 distinct states, run finished after 3010 ms. (steps per millisecond=124 ) properties seen :0
FORMULA CloudDeployment-PT-7b-UpperBounds-03 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 148650 ms.

BK_STOP 1779480658347

--------------------
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-7b"
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-7b, 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-177946904300066"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-7b.tgz
mv CloudDeployment-PT-7b 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 ;