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.r175-smll-177961111800008.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 HypertorusGrid-PT-d4k3p2b08, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r175-smll-177961111800008
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.3M
-rw-r--r-- 1 mcc users 11K Mar 7 17:18 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K Mar 7 17:18 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Mar 7 17:17 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 7 17:17 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 10:59 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 10:59 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 10:59 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:59 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 7 17:19 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 120K Mar 7 17:19 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 16K Mar 7 17:19 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 94K Mar 7 17:19 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 15 10:59 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 10:59 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 10 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rwxr-xr-x 1 mcc users 2.8M 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 HypertorusGrid-PT-d4k3p2b08-UpperBounds-00
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-01
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-02
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-03
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-04
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-05
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-06
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-07
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-08
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-09
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-10
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-11
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-12
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-13
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-14
FORMULA_NAME HypertorusGrid-PT-d4k3p2b08-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779733574993

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=HypertorusGrid-PT-d4k3p2b08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 18:26:17] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 18:26:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 18:26:18] [INFO ] Load time of PNML (sax parser for PT used): 533 ms
[2026-05-25 18:26:18] [INFO ] Transformed 2025 places.
[2026-05-25 18:26:18] [INFO ] Transformed 5184 transitions.
[2026-05-25 18:26:18] [INFO ] Parsed PT model containing 2025 places and 5184 transitions and 20736 arcs in 832 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 17 ms.
Current structural bounds on expressions (Initially) : Max Seen:[2, 2, 1, 2, 2, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[2, 2, 1, 2, 2, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 2] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 5184 rows 2025 cols
[2026-05-25 18:26:18] [INFO ] Computed 730 invariants in 349 ms
Current structural bounds on expressions (after invariants) : Max Seen:[2, 2, 1, 2, 2, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 2] Max Struct:[24, 24, 1, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 24]
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10000 steps (2 resets) in 2502 ms. (3 steps per ms)
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 50005 steps (10 resets) in 1379 ms. (36 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[3, 5, 4, 5, 4] Max Struct:[24, 24, 24, 24, 24]
[2026-05-25 18:26:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 18:26:24] [INFO ] [Real]Absence check using 729 positive place invariants in 416 ms returned sat
[2026-05-25 18:26:24] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 118 ms returned sat
[2026-05-25 18:26:27] [INFO ] [Real]Absence check using state equation in 2665 ms returned sat
[2026-05-25 18:26:28] [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 0
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: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
[2026-05-25 18:26:28] [INFO ] [Real]Absence check using 729 positive place invariants in 304 ms returned sat
[2026-05-25 18:26:29] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 122 ms returned sat
[2026-05-25 18:26:31] [INFO ] [Real]Absence check using state equation in 2069 ms returned sat
[2026-05-25 18:26:32] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 649 ms.
[2026-05-25 18:26:33] [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 1
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: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
[2026-05-25 18:26:33] [INFO ] [Real]Absence check using 729 positive place invariants in 283 ms returned sat
[2026-05-25 18:26:34] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 90 ms returned sat
[2026-05-25 18:26:36] [INFO ] [Real]Absence check using state equation in 2530 ms returned sat
[2026-05-25 18:26:37] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 489 ms.
[2026-05-25 18:26:38] [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 18:26:39] [INFO ] [Nat]Absence check using 729 positive place invariants in 282 ms returned sat
[2026-05-25 18:26:39] [INFO ] [Nat]Absence check using 729 positive and 1 generalized place invariants in 84 ms returned sat
[2026-05-25 18:26:41] [INFO ] [Nat]Absence check using state equation in 2492 ms returned sat
[2026-05-25 18:26:42] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 572 ms.
[2026-05-25 18:26:43] [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 2
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
[2026-05-25 18:26:44] [INFO ] [Real]Absence check using 729 positive place invariants in 334 ms returned sat
[2026-05-25 18:26:44] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 133 ms returned sat
[2026-05-25 18:26:46] [INFO ] [Real]Absence check using state equation in 2402 ms returned sat
[2026-05-25 18:26:47] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 772 ms.
[2026-05-25 18:26:48] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 18:26:49] [INFO ] [Nat]Absence check using 729 positive place invariants in 234 ms returned sat
[2026-05-25 18:26:49] [INFO ] [Nat]Absence check using 729 positive and 1 generalized place invariants in 95 ms returned sat
[2026-05-25 18:26:52] [INFO ] [Nat]Absence check using state equation in 2462 ms returned sat
[2026-05-25 18:26:52] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 561 ms.
[2026-05-25 18:26:53] [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
[2026-05-25 18:26:54] [INFO ] [Real]Absence check using 729 positive place invariants in 273 ms returned sat
[2026-05-25 18:26:54] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 79 ms returned sat
[2026-05-25 18:26:56] [INFO ] [Real]Absence check using state equation in 2068 ms returned sat
[2026-05-25 18:26:57] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 374 ms.
[2026-05-25 18:26:58] [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 4
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: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)
Current structural bounds on expressions (after SMT) : Max Seen:[3, 5, 4, 5, 4] Max Struct:[24, 24, 24, 24, 24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[3, 5, 4, 5, 4] Max Struct:[24, 24, 24, 24, 24]
Support contains 5 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 582 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 601 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:26:59] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[3, 5, 4, 5, 4] Max Struct:[24, 24, 24, 24, 24]
RANDOM walk for 171421 steps (0 resets) in 30001 ms. (5 steps per ms)
BEST_FIRST walk for 985994 steps (0 resets) in 25060 ms. (39 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 8, 9, 7, 13] Max Struct:[24, 24, 24, 24, 24]
[2026-05-25 18:27:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:27:55] [INFO ] [Real]Absence check using 729 positive place invariants in 320 ms returned sat
[2026-05-25 18:27:55] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 96 ms returned sat
[2026-05-25 18:27:57] [INFO ] [Real]Absence check using state equation in 2300 ms returned sat
[2026-05-25 18:27:58] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 569 ms.
[2026-05-25 18:28:18] [INFO ] Added : 215 causal constraints over 43 iterations in 20379 ms.(timeout) Result :sat
Minimization took 4700 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:28:24] [INFO ] [Real]Absence check using 729 positive place invariants in 262 ms returned sat
[2026-05-25 18:28:24] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 143 ms returned sat
[2026-05-25 18:28:26] [INFO ] [Real]Absence check using state equation in 2167 ms returned sat
[2026-05-25 18:28:27] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 453 ms.
[2026-05-25 18:28:47] [INFO ] Added : 245 causal constraints over 49 iterations in 20132 ms.(timeout) Result :sat
Minimization took 4747 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:28:52] [INFO ] [Real]Absence check using 729 positive place invariants in 220 ms returned sat
[2026-05-25 18:28:52] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 89 ms returned sat
[2026-05-25 18:28:54] [INFO ] [Real]Absence check using state equation in 2139 ms returned sat
[2026-05-25 18:28:55] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 455 ms.
[2026-05-25 18:29:15] [INFO ] Added : 220 causal constraints over 44 iterations in 20587 ms.(timeout) Result :sat
Minimization took 4695 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:29:21] [INFO ] [Real]Absence check using 729 positive place invariants in 331 ms returned sat
[2026-05-25 18:29:21] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 80 ms returned sat
[2026-05-25 18:29:23] [INFO ] [Real]Absence check using state equation in 2091 ms returned sat
[2026-05-25 18:29:24] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 458 ms.
[2026-05-25 18:29:44] [INFO ] Added : 220 causal constraints over 44 iterations in 20067 ms.(timeout) Result :sat
Minimization took 4744 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:29:50] [INFO ] [Real]Absence check using 729 positive place invariants in 353 ms returned sat
[2026-05-25 18:29:50] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 138 ms returned sat
[2026-05-25 18:29:52] [INFO ] [Real]Absence check using state equation in 2331 ms returned sat
[2026-05-25 18:29:53] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 386 ms.
[2026-05-25 18:30:13] [INFO ] Added : 225 causal constraints over 45 iterations in 20136 ms.(timeout) Result :sat
Minimization took 4762 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 8, 9, 7, 13] Max Struct:[24, 24, 24, 24, 24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[12, 8, 9, 7, 13] Max Struct:[24, 24, 24, 24, 24]
Support contains 5 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 180 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 180 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 172 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:30:18] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:30:22] [INFO ] Implicit Places using invariants in 3528 ms returned []
[2026-05-25 18:30:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:30:29] [INFO ] Implicit Places using invariants and state equation in 6985 ms returned []
Implicit Place search using SMT with State Equation took 10534 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:30:29] [INFO ] Redundant transitions in 585 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:30:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30214 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30138 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 65870ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 65936ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 77294 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:31:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[12, 8, 9, 7, 13] Max Struct:[24, 24, 24, 24, 24]
RANDOM walk for 185626 steps (0 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 996416 steps (0 resets) in 25051 ms. (39 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
[2026-05-25 18:32:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:32:31] [INFO ] [Real]Absence check using 729 positive place invariants in 240 ms returned sat
[2026-05-25 18:32:31] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 96 ms returned sat
[2026-05-25 18:32:33] [INFO ] [Real]Absence check using state equation in 2310 ms returned sat
[2026-05-25 18:32:34] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 462 ms.
[2026-05-25 18:32:54] [INFO ] Added : 225 causal constraints over 45 iterations in 20143 ms.(timeout) Result :sat
Minimization took 4699 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:33:00] [INFO ] [Real]Absence check using 729 positive place invariants in 332 ms returned sat
[2026-05-25 18:33:00] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 132 ms returned sat
[2026-05-25 18:33:02] [INFO ] [Real]Absence check using state equation in 2152 ms returned sat
[2026-05-25 18:33:02] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 330 ms.
[2026-05-25 18:33:22] [INFO ] Added : 235 causal constraints over 47 iterations in 20123 ms.(timeout) Result :sat
Minimization took 4745 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:33:28] [INFO ] [Real]Absence check using 729 positive place invariants in 280 ms returned sat
[2026-05-25 18:33:28] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 94 ms returned sat
[2026-05-25 18:33:30] [INFO ] [Real]Absence check using state equation in 1997 ms returned sat
[2026-05-25 18:33:31] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 341 ms.
[2026-05-25 18:33:51] [INFO ] Added : 245 causal constraints over 49 iterations in 20871 ms.(timeout) Result :sat
Minimization took 4711 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:33:57] [INFO ] [Real]Absence check using 729 positive place invariants in 294 ms returned sat
[2026-05-25 18:33:57] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 83 ms returned sat
[2026-05-25 18:34:00] [INFO ] [Real]Absence check using state equation in 2454 ms returned sat
[2026-05-25 18:34:00] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 371 ms.
[2026-05-25 18:34:20] [INFO ] Added : 215 causal constraints over 43 iterations in 20308 ms.(timeout) Result :sat
Minimization took 4738 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:34:26] [INFO ] [Real]Absence check using 729 positive place invariants in 310 ms returned sat
[2026-05-25 18:34:26] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 107 ms returned sat
[2026-05-25 18:34:29] [INFO ] [Real]Absence check using state equation in 2484 ms returned sat
[2026-05-25 18:34:30] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 485 ms.
[2026-05-25 18:34:49] [INFO ] Added : 235 causal constraints over 47 iterations in 20032 ms.(timeout) Result :sat
Minimization took 4744 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
Support contains 5 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 309 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 309 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 279 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:34:55] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:34:59] [INFO ] Implicit Places using invariants in 3786 ms returned []
[2026-05-25 18:34:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:35:06] [INFO ] Implicit Places using invariants and state equation in 7789 ms returned []
Implicit Place search using SMT with State Equation took 11582 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:35:07] [INFO ] Redundant transitions in 626 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:35:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30102 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30131 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 64170ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 64186ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 76696 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:36:11] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
RANDOM walk for 185698 steps (1 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 1001689 steps (0 resets) in 25095 ms. (39 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
[2026-05-25 18:37:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:37:07] [INFO ] [Real]Absence check using 729 positive place invariants in 336 ms returned sat
[2026-05-25 18:37:07] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 114 ms returned sat
[2026-05-25 18:37:09] [INFO ] [Real]Absence check using state equation in 2138 ms returned sat
[2026-05-25 18:37:10] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 438 ms.
[2026-05-25 18:37:31] [INFO ] Added : 245 causal constraints over 49 iterations in 20737 ms.(timeout) Result :sat
Minimization took 4734 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:37:36] [INFO ] [Real]Absence check using 729 positive place invariants in 240 ms returned sat
[2026-05-25 18:37:36] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 84 ms returned sat
[2026-05-25 18:37:39] [INFO ] [Real]Absence check using state equation in 2272 ms returned sat
[2026-05-25 18:37:39] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 380 ms.
[2026-05-25 18:37:59] [INFO ] Added : 300 causal constraints over 60 iterations in 20136 ms.(timeout) Result :sat
Minimization took 4727 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:38:05] [INFO ] [Real]Absence check using 729 positive place invariants in 236 ms returned sat
[2026-05-25 18:38:05] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 89 ms returned sat
[2026-05-25 18:38:07] [INFO ] [Real]Absence check using state equation in 2277 ms returned sat
[2026-05-25 18:38:08] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 328 ms.
[2026-05-25 18:38:28] [INFO ] Added : 185 causal constraints over 37 iterations in 20451 ms.(timeout) Result :sat
Minimization took 4714 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:38:33] [INFO ] [Real]Absence check using 729 positive place invariants in 201 ms returned sat
[2026-05-25 18:38:34] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 86 ms returned sat
[2026-05-25 18:38:36] [INFO ] [Real]Absence check using state equation in 2162 ms returned sat
[2026-05-25 18:38:36] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 384 ms.
[2026-05-25 18:38:56] [INFO ] Added : 195 causal constraints over 39 iterations in 20504 ms.(timeout) Result :sat
Minimization took 4687 ms.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:39:02] [INFO ] [Real]Absence check using 729 positive place invariants in 201 ms returned sat
[2026-05-25 18:39:02] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 81 ms returned sat
[2026-05-25 18:39:04] [INFO ] [Real]Absence check using state equation in 1986 ms returned sat
[2026-05-25 18:39:05] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 574 ms.
[2026-05-25 18:39:25] [INFO ] Added : 180 causal constraints over 36 iterations in 20124 ms.(timeout) Result :sat
Minimization took 4684 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[12, 8, 9, 13, 13] Max Struct:[24, 24, 24, 24, 24]
Support contains 5 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 158 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 160 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 142 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:39:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:39:33] [INFO ] Implicit Places using invariants in 2536 ms returned []
[2026-05-25 18:39:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:39:40] [INFO ] Implicit Places using invariants and state equation in 7559 ms returned []
Implicit Place search using SMT with State Equation took 10098 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:39:41] [INFO ] Redundant transitions in 378 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:39:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30136 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30082 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 64538ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 64550ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75187 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:40:47] [INFO ] Flatten gal took : 1271 ms
[2026-05-25 18:40:48] [INFO ] Flatten gal took : 333 ms
[2026-05-25 18:40:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16514591584382415028.gal : 378 ms
[2026-05-25 18:40:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5568566658721408659.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16514591584382415028.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5568566658721408659.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
RANDOM walk for 40000 steps (8 resets) in 16470 ms. (2 steps per ms) remains 10/10 properties
Loading property file /tmp/ReachabilityCardinality5568566658721408659.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 1675 ms. (23 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 2291 ms. (17 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1941 ms. (20 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1946 ms. (20 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1531 ms. (26 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1927 ms. (20 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1830 ms. (21 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1693 ms. (23 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1283 ms. (31 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1431 ms. (27 steps per ms) remains 10/10 properties
SDD proceeding with computation,10 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :4 after 48
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :48 after 76
SDD proceeding with computation,10 properties remain. new max is 32
SDD size :76 after 448
SDD proceeding with computation,10 properties remain. new max is 64
SDD size :448 after 5402
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :5402 after 53076
SDD proceeding with computation,10 properties remain. new max is 256
SDD size :53076 after 64504
SDD proceeding with computation,10 properties remain. new max is 512
SDD size :64504 after 90846
SDD proceeding with computation,10 properties remain. new max is 1024
SDD size :90846 after 984557
SDD proceeding with computation,10 properties remain. new max is 2048
SDD size :984557 after 1.0738e+06
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :1.0738e+06 after 1.83107e+06
Probabilistic random walk after 457720 steps, saw 457167 distinct states, run finished after 27054 ms. (steps per millisecond=16 ) properties seen :0
[2026-05-25 18:41:22] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (OVERLAPS) 40/45 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (OVERLAPS) 724/769 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/769 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 5 (OVERLAPS) 1248/2017 variables, 723/729 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 10 unsolved
SMT process timed out in 5049ms, After SMT, problems are : Problem set: 0 solved, 10 unsolved
Fused 10 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 5 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 153 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 156 ms. Remains : 2025/2025 places, 5184/5184 transitions.
SDD proceeding with computation,10 properties remain. new max is 8192
SDD size :1.83107e+06 after 1.01059e+07
RANDOM walk for 40000 steps (8 resets) in 11367 ms. (3 steps per ms) remains 9/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1278 ms. (31 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1562 ms. (25 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1404 ms. (28 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1292 ms. (30 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1221 ms. (32 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1405 ms. (28 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1399 ms. (28 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1197 ms. (33 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1230 ms. (32 steps per ms) remains 9/9 properties
[2026-05-25 18:41:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 40/45 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 724/769 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/769 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (OVERLAPS) 1248/2017 variables, 723/729 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Detected timeout of ITS tools.
[2026-05-25 18:41:39] [INFO ] Flatten gal took : 316 ms
[2026-05-25 18:41:39] [INFO ] Applying decomposition
[2026-05-25 18:41:39] [INFO ] Flatten gal took : 341 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph3963630996721838362.txt' '-o' '/tmp/graph3963630996721838362.bin' '-w' '/tmp/graph3963630996721838362.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph3963630996721838362.bin' '-l' '-1' '-v' '-w' '/tmp/graph3963630996721838362.weights' '-q' '0' '-e' '0.001'
[2026-05-25 18:41:40] [INFO ] Decomposing Gal with order
[2026-05-25 18:41:40] [INFO ] Rewriting arrays to variables to allow decomposition.
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 9 unsolved
[2026-05-25 18:41:42] [INFO ] Removed a total of 7776 redundant transitions.
[2026-05-25 18:41:42] [INFO ] Flatten gal took : 935 ms
[2026-05-25 18:41:42] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 50 ms.
[2026-05-25 18:41:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16064294392273165933.gal : 69 ms
[2026-05-25 18:41:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6949524199009818045.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16064294392273165933.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6949524199009818045.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality6949524199009818045.prop.
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (OVERLAPS) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7209/7209 variables, and 2755 constraints, problems are : Problem set: 0 solved, 9 unsolved in 20190 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 40/45 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 724/769 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/769 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (OVERLAPS) 1248/2017 variables, 723/729 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 9/2764 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/7209 variables, 0/2764 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 12 (OVERLAPS) 0/7209 variables, 0/2764 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7209/7209 variables, and 2764 constraints, problems are : Problem set: 0 solved, 9 unsolved in 13933 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 34157ms problems are : Problem set: 0 solved, 9 unsolved
Fused 9 Parikh solutions to 7 different solutions.
Detected timeout of ITS tools.
Parikh walk visited 6 properties in 30007 ms.
Support contains 3 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 113 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 113 ms. Remains : 2025/2025 places, 5184/5184 transitions.
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-01 24 TECHNIQUES REACHABILITY_MAX
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-00 24 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 2 queries.) : Max Seen:[9, 13, 13] Max Struct:[24, 24, 24]
Starting property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-03
Current structural bounds on expressions (Initially) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[2] Max Struct:[24]
Current structural bounds on expressions (Before main loop) : Max Seen:[2] Max Struct:[24]
[2026-05-25 18:42:38] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[24]
RANDOM walk for 10000 steps (2 resets) in 2138 ms. (4 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 250 ms. (39 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5] Max Struct:[24]
[2026-05-25 18:42:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 18:42:41] [INFO ] [Real]Absence check using 729 positive place invariants in 314 ms returned sat
[2026-05-25 18:42:41] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 126 ms returned sat
[2026-05-25 18:42:44] [INFO ] [Real]Absence check using state equation in 2683 ms returned sat
[2026-05-25 18:42:45] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 610 ms.
[2026-05-25 18:42:45] [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:2252)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:946)
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)
Current structural bounds on expressions (after SMT) : Max Seen:[5] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 163 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 166 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:42:46] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5] Max Struct:[24]
RANDOM walk for 181446 steps (0 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 166174 steps (0 resets) in 5022 ms. (33 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[8] Max Struct:[24]
[2026-05-25 18:43:21] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:43:22] [INFO ] [Real]Absence check using 729 positive place invariants in 278 ms returned sat
[2026-05-25 18:43:22] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 96 ms returned sat
[2026-05-25 18:43:24] [INFO ] [Real]Absence check using state equation in 2168 ms returned sat
[2026-05-25 18:43:25] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 387 ms.
[2026-05-25 18:43:45] [INFO ] Added : 235 causal constraints over 47 iterations in 20263 ms.(timeout) Result :sat
Minimization took 4727 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[8] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[8] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 530 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 531 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 296 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:43:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:43:54] [INFO ] Implicit Places using invariants in 3432 ms returned []
[2026-05-25 18:43:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:44:03] [INFO ] Implicit Places using invariants and state equation in 9077 ms returned []
Implicit Place search using SMT with State Equation took 12521 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:44:04] [INFO ] Redundant transitions in 821 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:44:04] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: ((s648 1.0)
(s649 1.0)
(s650 1.0)
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(s718 1.0)
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(s722 1.0)
(s723 1.0)
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(s725 1.0)
(s726 1.0)
(s727 1.0)
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(s729 1.0)
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(s733 1.0)
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(s735 1.0)
(s736 1.0)
(s737 timeout
1.0 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30086 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30069 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 65787ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 65857ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 79581 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:45:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[8] Max Struct:[24]
RANDOM walk for 189817 steps (0 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 164277 steps (0 resets) in 5017 ms. (32 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[10] Max Struct:[24]
[2026-05-25 18:45:45] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:45:46] [INFO ] [Real]Absence check using 729 positive place invariants in 233 ms returned sat
[2026-05-25 18:45:46] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 92 ms returned sat
[2026-05-25 18:45:48] [INFO ] [Real]Absence check using state equation in 2046 ms returned sat
[2026-05-25 18:45:49] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 529 ms.
[2026-05-25 18:46:08] [INFO ] Added : 200 causal constraints over 40 iterations in 20070 ms.(timeout) Result :sat
Minimization took 4724 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[10] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 218 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 226 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 156 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:46:14] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:46:17] [INFO ] Implicit Places using invariants in 3510 ms returned []
[2026-05-25 18:46:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:46:27] [INFO ] Implicit Places using invariants and state equation in 10183 ms returned []
Implicit Place search using SMT with State Equation took 13708 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:46:28] [INFO ] Redundant transitions in 540 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:46:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30108 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: ((s648 1)
(s649 1)
(s650 1)
(s651 1)
(s652 1)
(s653 1)
(s654 1)
(s655 1)
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(s667 1)
(s668 1)
(s669 1)
(s670 1)
(s671 1)
(s672 1)
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(s675 1)
(s676 1)
(s677 1)
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(s681 1)
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(s700 1)
(s701 1)
(s702 1)
(s703 1)
(s704 1)
(s705 1)
(s706 1)
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(s710 1)
(s711 1)
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(s719 1)
(s720 1)
(s721 1)
(s722 1)
(s723 1)
(s724 1)
(s725 1)
(s726 1)
(s727 1)
(s728 1)
(s729 1)
(s730 1)
(s731 1)
(s732 1)
(s733 1)
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(s735 1)
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(s737 1)
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(s740 1)
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(s744 1)
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(s770 1)
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(s775 1)
(s776 1)
(s777 1)
(s778 1)
(s779 1)
(s780 1)
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(s784 1)
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(s1406 1)
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(s1421 1)
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(s1426 1)
(s1427 1)
(s1428 1)
(s1429 1)
(s1430 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30158 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 66034ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 66055ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 80483 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:47:34] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[10] Max Struct:[24]
RANDOM walk for 191022 steps (0 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 196401 steps (0 resets) in 5022 ms. (39 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[10] Max Struct:[24]
[2026-05-25 18:48:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:48:10] [INFO ] [Real]Absence check using 729 positive place invariants in 273 ms returned sat
[2026-05-25 18:48:10] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 93 ms returned sat
[2026-05-25 18:48:12] [INFO ] [Real]Absence check using state equation in 2413 ms returned sat
[2026-05-25 18:48:13] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 403 ms.
[2026-05-25 18:48:33] [INFO ] Added : 235 causal constraints over 47 iterations in 20295 ms.(timeout) Result :sat
Minimization took 4740 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[10] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 119 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 120 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 115 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:48:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:48:41] [INFO ] Implicit Places using invariants in 3158 ms returned []
[2026-05-25 18:48:41] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:48:50] [INFO ] Implicit Places using invariants and state equation in 8704 ms returned []
Implicit Place search using SMT with State Equation took 11866 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:48:50] [INFO ] Redundant transitions in 393 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:48:50] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30068 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30081 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 65640ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 65652ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 78055 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:49:58] [INFO ] Flatten gal took : 1113 ms
[2026-05-25 18:49:58] [INFO ] Flatten gal took : 400 ms
[2026-05-25 18:49:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8502682178813887964.gal : 142 ms
[2026-05-25 18:49:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality868054899008690203.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/ReachabilityCardinality8502682178813887964.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality868054899008690203.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 ...327
RANDOM walk for 40000 steps (8 resets) in 15323 ms. (2 steps per ms) remains 2/2 properties
Loading property file /tmp/ReachabilityCardinality868054899008690203.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 1304 ms. (30 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1482 ms. (26 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :4 after 48
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :48 after 76
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :76 after 448
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :448 after 5402
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :5402 after 53076
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :53076 after 64504
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :64504 after 90846
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :90846 after 984557
Probabilistic random walk after 261044 steps, saw 260661 distinct states, run finished after 12009 ms. (steps per millisecond=21 ) properties seen :0
[2026-05-25 18:50:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :984557 after 1.0738e+06
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 7209/7209 variables, and 2755 constraints, problems are : Problem set: 0 solved, 2 unsolved in 5056 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 2/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 4096
At refinement iteration 11 (INCLUDED_ONLY) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD size :1.0738e+06 after 1.83107e+06
At refinement iteration 12 (OVERLAPS) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7209/7209 variables, and 2757 constraints, problems are : Problem set: 0 solved, 2 unsolved in 4230 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9309ms problems are : Problem set: 0 solved, 2 unsolved
Finished Parikh walk after 3659 steps, including 0 resets, run visited all 2 properties in 414 ms. (steps per millisecond=8 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Parikh walk visited 2 properties in 448 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-03 24 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-03 in 464634 ms.
Starting property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-04
Current structural bounds on expressions (Initially) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[2] Max Struct:[24]
Current structural bounds on expressions (Before main loop) : Max Seen:[2] Max Struct:[24]
[2026-05-25 18:50:23] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[24]
RANDOM walk for 10000 steps (2 resets) in 2154 ms. (4 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 236 ms. (42 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[4] Max Struct:[24]
[2026-05-25 18:50:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 18:50:25] [INFO ] [Real]Absence check using 729 positive place invariants in 231 ms returned sat
[2026-05-25 18:50:26] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 83 ms returned sat
[2026-05-25 18:50:28] [INFO ] [Real]Absence check using state equation in 2391 ms returned sat
[2026-05-25 18:50:29] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 530 ms.
0.0timeout
^^^^^^^^^^
(error "Invalid token: 0.0timeout")
[2026-05-25 18:50:30] [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 18:50:31] [INFO ] [Nat]Absence check using 729 positive place invariants in 321 ms returned sat
[2026-05-25 18:50:31] [INFO ] [Nat]Absence check using 729 positive and 1 generalized place invariants in 118 ms returned sat
[2026-05-25 18:50:33] [INFO ] [Nat]Absence check using state equation in 2254 ms returned sat
[2026-05-25 18:50:34] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 434 ms.
Maximisation of solution failed !
Minimization took 1 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[4] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[4] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 159 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 162 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:50:35] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[4] Max Struct:[24]
RANDOM walk for 194619 steps (1 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 174228 steps (0 resets) in 5005 ms. (34 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[15] Max Struct:[24]
[2026-05-25 18:51:10] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:51:11] [INFO ] [Real]Absence check using 729 positive place invariants in 273 ms returned sat
[2026-05-25 18:51:11] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 99 ms returned sat
[2026-05-25 18:51:13] [INFO ] [Real]Absence check using state equation in 2430 ms returned sat
[2026-05-25 18:51:14] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 434 ms.
[2026-05-25 18:51:34] [INFO ] Added : 285 causal constraints over 57 iterations in 20019 ms.(timeout) Result :sat
Minimization took 4752 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[15] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[15] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 117 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 118 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 96 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:51:39] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:51:42] [INFO ] Implicit Places using invariants in 2673 ms returned []
[2026-05-25 18:51:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:51:50] [INFO ] Implicit Places using invariants and state equation in 8306 ms returned []
Implicit Place search using SMT with State Equation took 10990 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:51:51] [INFO ] Redundant transitions in 390 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:51:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30129 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30112 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 65302ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 65313ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 76815 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:52:56] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[15] Max Struct:[24]
RANDOM walk for 192260 steps (1 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 215569 steps (0 resets) in 5011 ms. (43 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[15] Max Struct:[24]
[2026-05-25 18:53:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:53:31] [INFO ] [Real]Absence check using 729 positive place invariants in 214 ms returned sat
[2026-05-25 18:53:32] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 97 ms returned sat
[2026-05-25 18:53:34] [INFO ] [Real]Absence check using state equation in 2068 ms returned sat
[2026-05-25 18:53:34] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 373 ms.
[2026-05-25 18:53:54] [INFO ] Added : 215 causal constraints over 43 iterations in 20150 ms.(timeout) Result :sat
Minimization took 4709 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[15] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[15] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 91 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 92 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 88 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:53:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:54:02] [INFO ] Implicit Places using invariants in 3147 ms returned []
[2026-05-25 18:54:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:54:11] [INFO ] Implicit Places using invariants and state equation in 8430 ms returned []
Implicit Place search using SMT with State Equation took 11585 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:54:11] [INFO ] Redundant transitions in 626 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:54:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30084 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30069 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 64653ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 64669ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 76995 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:55:17] [INFO ] Flatten gal took : 929 ms
[2026-05-25 18:55:18] [INFO ] Flatten gal took : 631 ms
[2026-05-25 18:55:18] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17121105986109372482.gal : 115 ms
[2026-05-25 18:55:18] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17437314825145186746.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/ReachabilityCardinality17121105986109372482.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17437314825145186746.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality17437314825145186746.prop.
RANDOM walk for 40000 steps (8 resets) in 15708 ms. (2 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1207 ms. (33 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1690 ms. (23 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :4 after 48
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :48 after 76
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :76 after 448
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :448 after 5402
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :5402 after 53076
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :53076 after 64504
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :64504 after 90846
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :90846 after 984557
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :984557 after 1.0738e+06
Interrupted probabilistic random walk after 340301 steps, run timeout after 15016 ms. (steps per millisecond=22 ) properties seen :0 out of 2
Probabilistic random walk after 340301 steps, saw 339845 distinct states, run finished after 15035 ms. (steps per millisecond=22 ) properties seen :0
[2026-05-25 18:55:36] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7209/7209 variables, and 2755 constraints, problems are : Problem set: 0 solved, 2 unsolved in 4877 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.0738e+06 after 1.83107e+06
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 2/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7209/7209 variables, and 2757 constraints, problems are : Problem set: 0 solved, 2 unsolved in 3809 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 8707ms problems are : Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 8192
SDD size :1.83107e+06 after 1.01059e+07
Detected timeout of ITS tools.
[2026-05-25 18:56:08] [INFO ] Flatten gal took : 182 ms
[2026-05-25 18:56:08] [INFO ] Applying decomposition
[2026-05-25 18:56:08] [INFO ] Flatten gal took : 263 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph8472684222336349459.txt' '-o' '/tmp/graph8472684222336349459.bin' '-w' '/tmp/graph8472684222336349459.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph8472684222336349459.bin' '-l' '-1' '-v' '-w' '/tmp/graph8472684222336349459.weights' '-q' '0' '-e' '0.001'
[2026-05-25 18:56:09] [INFO ] Decomposing Gal with order
[2026-05-25 18:56:10] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-25 18:56:11] [INFO ] Removed a total of 7776 redundant transitions.
[2026-05-25 18:56:11] [INFO ] Flatten gal took : 506 ms
[2026-05-25 18:56:11] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 27 ms.
[2026-05-25 18:56:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14649970285915475574.gal : 39 ms
[2026-05-25 18:56:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15806589999686087390.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/ReachabilityCardinality14649970285915475574.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15806589999686087390.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality15806589999686087390.prop.
Parikh walk visited 1 properties in 46369 ms.
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 91 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 93 ms. Remains : 2025/2025 places, 5184/5184 transitions.
RANDOM walk for 40000 steps (8 resets) in 9626 ms. (4 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1278 ms. (31 steps per ms) remains 1/1 properties
Probabilistic random walk after 150815 steps, saw 150583 distinct states, run finished after 6006 ms. (steps per millisecond=25 ) properties seen :0
[2026-05-25 18:56:40] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7209/7209 variables, and 2755 constraints, problems are : Problem set: 0 solved, 1 unsolved in 4048 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 1/2756 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/7209 variables, 0/2756 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/7209 variables, 0/2756 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7209/7209 variables, and 2756 constraints, problems are : Problem set: 0 solved, 1 unsolved in 4405 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 8475ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 5914 steps, including 1 resets, run visited all 1 properties in 673 ms. (steps per millisecond=8 )
Parikh walk visited 1 properties in 674 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-04 24 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-04 in 387193 ms.
Starting property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-15
Current structural bounds on expressions (Initially) : Max Seen:[2] Max Struct:[+inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[2] Max Struct:[24]
Current structural bounds on expressions (Before main loop) : Max Seen:[2] Max Struct:[24]
[2026-05-25 18:56:50] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[2] Max Struct:[24]
RANDOM walk for 10000 steps (2 resets) in 2378 ms. (4 steps per ms)
BEST_FIRST walk for 10001 steps (2 resets) in 235 ms. (42 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5] Max Struct:[24]
[2026-05-25 18:56:52] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 18:56:53] [INFO ] [Real]Absence check using 729 positive place invariants in 314 ms returned sat
[2026-05-25 18:56:53] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 124 ms returned sat
[2026-05-25 18:56:55] [INFO ] [Real]Absence check using state equation in 2034 ms returned sat
[2026-05-25 18:56:56] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 462 ms.
[2026-05-25 18:56:57] [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 18:56:58] [INFO ] [Nat]Absence check using 729 positive place invariants in 269 ms returned sat
[2026-05-25 18:56:58] [INFO ] [Nat]Absence check using 729 positive and 1 generalized place invariants in 84 ms returned sat
[2026-05-25 18:57:00] [INFO ] [Nat]Absence check using state equation in 2170 ms returned sat
[2026-05-25 18:57:01] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 381 ms.
Maximisation of solution failed !
Minimization took 0 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 94 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 95 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:57:03] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[5] Max Struct:[24]
RANDOM walk for 182365 steps (0 resets) in 30001 ms. (6 steps per ms)
BEST_FIRST walk for 193968 steps (0 resets) in 5027 ms. (38 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[5] Max Struct:[24]
[2026-05-25 18:57:38] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 18:57:38] [INFO ] [Real]Absence check using 729 positive place invariants in 325 ms returned sat
[2026-05-25 18:57:38] [INFO ] [Real]Absence check using 729 positive and 1 generalized place invariants in 118 ms returned sat
[2026-05-25 18:57:41] [INFO ] [Real]Absence check using state equation in 2872 ms returned sat
[2026-05-25 18:57:42] [INFO ] Computed and/alt/rep : 4536/4536/4536 causal constraints (skipped 0 transitions) in 464 ms.
[2026-05-25 18:58:02] [INFO ] Added : 245 causal constraints over 49 iterations in 20179 ms.(timeout) Result :sat
Minimization took 4728 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[5] Max Struct:[24]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[5] Max Struct:[24]
Support contains 1 out of 2025 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 144 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 145 ms. Remains : 2025/2025 places, 5184/5184 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2025/2025 places, 5184/5184 transitions.
Applied a total of 0 rules in 150 ms. Remains 2025 /2025 variables (removed 0) and now considering 5184/5184 (removed 0) transitions.
[2026-05-25 18:58:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:58:11] [INFO ] Implicit Places using invariants in 3465 ms returned []
[2026-05-25 18:58:11] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 18:58:19] [INFO ] Implicit Places using invariants and state equation in 8418 ms returned []
Implicit Place search using SMT with State Equation took 11886 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-25 18:58:20] [INFO ] Redundant transitions in 879 ms returned []
Running 4536 sub problems to find dead transitions.
[2026-05-25 18:58:20] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30069 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 4536/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4536 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 729/7209 variables, and 0 constraints, problems are : Problem set: 0 solved, 4536 unsolved in 30107 ms.
Refiners :[Positive P Invariants (semi-flows): 0/729 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2025 constraints, PredecessorRefiner: 0/4536 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 64943ms problems are : Problem set: 0 solved, 4536 unsolved
Search for dead transitions found 0 dead transitions in 64962ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 77930 ms. Remains : 2025/2025 places, 5184/5184 transitions.
[2026-05-25 18:59:27] [INFO ] Flatten gal took : 1251 ms
[2026-05-25 18:59:27] [INFO ] Flatten gal took : 436 ms
[2026-05-25 18:59:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality492256739144045719.gal : 145 ms
[2026-05-25 18:59:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15254451284697601773.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/ReachabilityCardinality492256739144045719.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15254451284697601773.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
RANDOM walk for 40000 steps (8 resets) in 14915 ms. (2 steps per ms) remains 2/2 properties
Loading property file /tmp/ReachabilityCardinality15254451284697601773.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 1845 ms. (21 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1256 ms. (31 steps per ms) remains 2/2 properties
SDD proceeding with computation,2 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,2 properties remain. new max is 8
SDD size :4 after 48
SDD proceeding with computation,2 properties remain. new max is 16
SDD size :48 after 76
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :76 after 448
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :448 after 5402
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :5402 after 53076
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :53076 after 64504
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :64504 after 90846
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :90846 after 984557
Interrupted probabilistic random walk after 269321 steps, run timeout after 12020 ms. (steps per millisecond=22 ) properties seen :0 out of 2
Probabilistic random walk after 269321 steps, saw 268930 distinct states, run finished after 12020 ms. (steps per millisecond=22 ) properties seen :0
[2026-05-25 18:59:42] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 2048
SDD size :984557 after 1.0738e+06
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 0/7209 variables, 0/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7209/7209 variables, and 2755 constraints, problems are : Problem set: 0 solved, 2 unsolved in 5033 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 8/9 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/9 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 728/737 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/737 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1280/2017 variables, 727/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2017 variables, 0/729 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 7 (OVERLAPS) 8/2025 variables, 1/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/2025 variables, 0/730 constraints. Problems are: Problem set: 0 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :1.0738e+06 after 1.83107e+06
At refinement iteration 9 (OVERLAPS) 5184/7209 variables, 2025/2755 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/7209 variables, 2/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 12 (OVERLAPS) 0/7209 variables, 0/2757 constraints. Problems are: Problem set: 0 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7209/7209 variables, and 2757 constraints, problems are : Problem set: 0 solved, 2 unsolved in 4092 ms.
Refiners :[Positive P Invariants (semi-flows): 729/729 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2025/2025 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9155ms problems are : Problem set: 0 solved, 2 unsolved
Finished Parikh walk after 3421 steps, including 0 resets, run visited all 2 properties in 401 ms. (steps per millisecond=8 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Parikh walk visited 2 properties in 409 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA HypertorusGrid-PT-d4k3p2b08-UpperBounds-15 24 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (After reachability solving 1 queries.) : Max Seen:[] Max Struct:[]
Ending property specific reduction for HypertorusGrid-PT-d4k3p2b08-UpperBounds-15 in 181783 ms.
[2026-05-25 18:59:52] [INFO ] Flatten gal took : 207 ms
Total runtime 2014659 ms.

BK_STOP 1779735592350

--------------------
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="HypertorusGrid-PT-d4k3p2b08"
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 HypertorusGrid-PT-d4k3p2b08, 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 r175-smll-177961111800008"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HypertorusGrid-PT-d4k3p2b08.tgz
mv HypertorusGrid-PT-d4k3p2b08 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 ;