About the Execution of ITS-Tools for DES-PT-20b
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 476.411 | 97689.00 | 130914.00 | 332.60 | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 | normal |
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.r082-smll-177946993700389.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 itstools
Input is DES-PT-20b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r082-smll-177946993700389
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 8.0K Mar 6 18:24 CTLCardinality.txt
-rw-r--r-- 1 mcc users 92K Mar 6 18:24 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Mar 6 18:24 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 6 18:24 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:57 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:57 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:57 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:57 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.9K Mar 6 18:24 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 108K Mar 6 18:24 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Mar 6 18:24 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 65K Mar 6 18:24 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:57 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:57 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 91K 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 DES-PT-20b-UpperBounds-00
FORMULA_NAME DES-PT-20b-UpperBounds-01
FORMULA_NAME DES-PT-20b-UpperBounds-02
FORMULA_NAME DES-PT-20b-UpperBounds-03
FORMULA_NAME DES-PT-20b-UpperBounds-04
FORMULA_NAME DES-PT-20b-UpperBounds-05
FORMULA_NAME DES-PT-20b-UpperBounds-06
FORMULA_NAME DES-PT-20b-UpperBounds-07
FORMULA_NAME DES-PT-20b-UpperBounds-08
FORMULA_NAME DES-PT-20b-UpperBounds-09
FORMULA_NAME DES-PT-20b-UpperBounds-10
FORMULA_NAME DES-PT-20b-UpperBounds-11
FORMULA_NAME DES-PT-20b-UpperBounds-12
FORMULA_NAME DES-PT-20b-UpperBounds-13
FORMULA_NAME DES-PT-20b-UpperBounds-14
FORMULA_NAME DES-PT-20b-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1779691897064
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DES-PT-20b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-25 06:51:39] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 06:51:39] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 06:51:39] [INFO ] Load time of PNML (sax parser for PT used): 173 ms
[2026-05-25 06:51:39] [INFO ] Transformed 360 places.
[2026-05-25 06:51:39] [INFO ] Transformed 311 transitions.
[2026-05-25 06:51:39] [INFO ] Found NUPN structural information;
[2026-05-25 06:51:40] [INFO ] Parsed PT model containing 360 places and 311 transitions and 987 arcs in 399 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16032032344816512937.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6193687719007491439.kers'
[2026-05-25 06:51:40] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16032032344816512937.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6193687719007491439.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 311 rows 360 cols 987 entries
Finished phase 1 with 171 SingleSign rule and 124 generalized
[2026-05-25 06:51:40] [INFO ] Computed 65 invariants in 4 ms
Computed 65 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-6193687719007491439.kers
Total runtime 7 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (89 resets) in 114 ms. (86 steps per ms)
FORMULA DES-PT-20b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DES-PT-20b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (45 resets) in 132 ms. (300 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
[2026-05-25 06:51:40] [INFO ] Invariant cache hit.
[2026-05-25 06:51:41] [INFO ] [Real]Absence check using 41 positive place invariants in 44 ms returned sat
[2026-05-25 06:51:41] [INFO ] [Real]Absence check using 41 positive and 24 generalized place invariants in 33 ms returned sat
[2026-05-25 06:51:41] [INFO ] [Real]Absence check using state equation in 446 ms returned sat
[2026-05-25 06:51:41] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:51:41] [INFO ] [Nat]Absence check using 41 positive place invariants in 37 ms returned sat
[2026-05-25 06:51:42] [INFO ] [Nat]Absence check using 41 positive and 24 generalized place invariants in 30 ms returned sat
[2026-05-25 06:51:42] [INFO ] [Nat]Absence check using state equation in 341 ms returned sat
[2026-05-25 06:51:44] [INFO ] Trap strengthening (SAT) tested/added 8/7 trap constraints in 2180 ms
[2026-05-25 06:51:44] [INFO ] Computed and/alt/rep : 305/595/305 causal constraints (skipped 5 transitions) in 54 ms.
[2026-05-25 06:51:46] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 0
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:308)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1143)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:881)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2280)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:207)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:803)
at fr.lip6.move.gal.application.Application.start(Application.java:195)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
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:615)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
at org.eclipse.equinox.launcher.Main.main(Main.java:1387)
[2026-05-25 06:51:46] [INFO ] [Real]Absence check using 41 positive place invariants in 28 ms returned sat
[2026-05-25 06:51:46] [INFO ] [Real]Absence check using 41 positive and 24 generalized place invariants in 21 ms returned sat
[2026-05-25 06:51:47] [INFO ] [Real]Absence check using state equation in 289 ms returned sat
[2026-05-25 06:51:47] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:51:47] [INFO ] [Nat]Absence check using 41 positive place invariants in 27 ms returned sat
[2026-05-25 06:51:47] [INFO ] [Nat]Absence check using 41 positive and 24 generalized place invariants in 19 ms returned sat
[2026-05-25 06:51:47] [INFO ] [Nat]Absence check using state equation in 256 ms returned sat
[2026-05-25 06:51:49] [INFO ] Trap strengthening (SAT) tested/added 10/9 trap constraints in 1489 ms
[2026-05-25 06:51:49] [INFO ] Computed and/alt/rep : 305/595/305 causal constraints (skipped 5 transitions) in 35 ms.
Maximisation of solution failed !
Minimization took 2 ms.
[2026-05-25 06:51:52] [INFO ] [Real]Absence check using 41 positive place invariants in 36 ms returned sat
[2026-05-25 06:51:52] [INFO ] [Real]Absence check using 41 positive and 24 generalized place invariants in 41 ms returned sat
[2026-05-25 06:51:53] [INFO ] [Real]Absence check using state equation in 349 ms returned sat
[2026-05-25 06:51:53] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:51:53] [INFO ] [Nat]Absence check using 41 positive place invariants in 58 ms returned sat
[2026-05-25 06:51:53] [INFO ] [Nat]Absence check using 41 positive and 24 generalized place invariants in 39 ms returned sat
[2026-05-25 06:51:54] [INFO ] [Nat]Absence check using state equation in 321 ms returned sat
[2026-05-25 06:51:54] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 707 ms
[2026-05-25 06:51:54] [INFO ] Computed and/alt/rep : 305/595/305 causal constraints (skipped 5 transitions) in 44 ms.
Minimization took 4 ms.
[2026-05-25 06:51:58] [INFO ] [Real]Absence check using 41 positive place invariants in 34 ms returned sat
[2026-05-25 06:51:58] [INFO ] [Real]Absence check using 41 positive and 24 generalized place invariants in 35 ms returned sat
[2026-05-25 06:51:59] [INFO ] [Real]Absence check using state equation in 301 ms returned sat
[2026-05-25 06:51:59] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:51:59] [INFO ] [Nat]Absence check using 41 positive place invariants in 37 ms returned sat
[2026-05-25 06:51:59] [INFO ] [Nat]Absence check using 41 positive and 24 generalized place invariants in 32 ms returned sat
[2026-05-25 06:51:59] [INFO ] [Nat]Absence check using state equation in 292 ms returned sat
[2026-05-25 06:52:01] [INFO ] Trap strengthening (SAT) tested/added 12/11 trap constraints in 2105 ms
[2026-05-25 06:52:01] [INFO ] Computed and/alt/rep : 305/595/305 causal constraints (skipped 5 transitions) in 42 ms.
Maximisation of solution failed !
Minimization took 1 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
Support contains 4 out of 360 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 360/360 places, 311/311 transitions.
Graph (complete) has 741 edges and 360 vertex of which 353 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.4 ms
Discarding 7 places :
Also discarding 4 output transitions
Drop transitions (Output transitions of discarded places.) removed 4 transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 21 transitions
Trivial Post-agglo rules discarded 21 transitions
Performed 21 trivial Post agglomeration. Transition count delta: 21
Iterating post reduction 0 with 23 rules applied. Total rules applied 24 place count 353 transition count 284
Reduce places removed 21 places and 0 transitions.
Iterating post reduction 1 with 21 rules applied. Total rules applied 45 place count 332 transition count 284
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 9 Pre rules applied. Total rules applied 45 place count 332 transition count 275
Deduced a syphon composed of 9 places in 4 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 2 with 18 rules applied. Total rules applied 63 place count 323 transition count 275
Discarding 19 places :
Symmetric choice reduction at 2 with 19 rule applications. Total rules 82 place count 304 transition count 256
Iterating global reduction 2 with 19 rules applied. Total rules applied 101 place count 304 transition count 256
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 101 place count 304 transition count 255
Deduced a syphon composed of 1 places in 4 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 103 place count 303 transition count 255
Discarding 15 places :
Symmetric choice reduction at 2 with 15 rule applications. Total rules 118 place count 288 transition count 240
Iterating global reduction 2 with 15 rules applied. Total rules applied 133 place count 288 transition count 240
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 2 with 15 rules applied. Total rules applied 148 place count 288 transition count 225
Reduce places removed 2 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 151 place count 286 transition count 224
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 3 Pre rules applied. Total rules applied 151 place count 286 transition count 221
Deduced a syphon composed of 3 places in 2 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 4 with 6 rules applied. Total rules applied 157 place count 283 transition count 221
Performed 76 Post agglomeration using F-continuation condition.Transition count delta: 76
Deduced a syphon composed of 76 places in 1 ms
Reduce places removed 76 places and 0 transitions.
Iterating global reduction 4 with 152 rules applied. Total rules applied 309 place count 207 transition count 145
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: -2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 4 with 4 rules applied. Total rules applied 313 place count 205 transition count 147
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 4 with 1 rules applied. Total rules applied 314 place count 205 transition count 146
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 315 place count 204 transition count 146
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 316 place count 203 transition count 145
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 317 place count 202 transition count 145
Applied a total of 317 rules in 356 ms. Remains 202 /360 variables (removed 158) and now considering 145/311 (removed 166) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 373 ms. Remains : 202/360 places, 145/311 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-16677375629325577114.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10311213451749295043.kers'
[2026-05-25 06:52:04] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-16677375629325577114.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10311213451749295043.kers]
Culling duplicate invariants (modulo rational): removing 27 columns.
Culled 27 columns in 0 ms.
// Phase 1: matrix 145 rows 175 cols 582 entries
Finished phase 1 with 87 SingleSign rule and 52 generalized
[2026-05-25 06:52:04] [INFO ] Computed 63 invariants in 2 ms
Computed 63 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-10311213451749295043.kers
Total runtime 4 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 1, 1]
RANDOM walk for 1000000 steps (47609 resets) in 3285 ms. (304 steps per ms)
FORMULA DES-PT-20b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 3000003 steps (27448 resets) in 3368 ms. (890 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
[2026-05-25 06:52:11] [INFO ] Invariant cache hit.
[2026-05-25 06:52:11] [INFO ] [Real]Absence check using 39 positive place invariants in 17 ms returned sat
[2026-05-25 06:52:11] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 21 ms returned sat
[2026-05-25 06:52:11] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2026-05-25 06:52:11] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 12 transitions) in 16 ms.
[2026-05-25 06:52:11] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:11] [INFO ] [Nat]Absence check using 39 positive place invariants in 17 ms returned sat
[2026-05-25 06:52:11] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 23 ms returned sat
[2026-05-25 06:52:11] [INFO ] [Nat]Absence check using state equation in 152 ms returned sat
[2026-05-25 06:52:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 126 ms
[2026-05-25 06:52:11] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 12 transitions) in 17 ms.
[2026-05-25 06:52:12] [INFO ] Added : 94 causal constraints over 19 iterations in 467 ms. Result :sat
Minimization took 118 ms.
[2026-05-25 06:52:12] [INFO ] [Real]Absence check using 39 positive place invariants in 22 ms returned sat
[2026-05-25 06:52:12] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 23 ms returned sat
[2026-05-25 06:52:12] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2026-05-25 06:52:12] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:12] [INFO ] [Nat]Absence check using 39 positive place invariants in 19 ms returned sat
[2026-05-25 06:52:12] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 25 ms returned sat
[2026-05-25 06:52:13] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-25 06:52:13] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 12 transitions) in 20 ms.
[2026-05-25 06:52:13] [INFO ] Added : 100 causal constraints over 20 iterations in 514 ms. Result :sat
Minimization took 139 ms.
[2026-05-25 06:52:13] [INFO ] [Real]Absence check using 39 positive place invariants in 19 ms returned sat
[2026-05-25 06:52:13] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 25 ms returned sat
[2026-05-25 06:52:14] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2026-05-25 06:52:14] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 12 transitions) in 20 ms.
[2026-05-25 06:52:14] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:14] [INFO ] [Nat]Absence check using 39 positive place invariants in 22 ms returned sat
[2026-05-25 06:52:14] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 25 ms returned sat
[2026-05-25 06:52:14] [INFO ] [Nat]Absence check using state equation in 163 ms returned sat
[2026-05-25 06:52:14] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 12 transitions) in 19 ms.
[2026-05-25 06:52:15] [INFO ] Added : 111 causal constraints over 23 iterations in 630 ms. Result :sat
Minimization took 127 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 202 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 202/202 places, 145/145 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 201 transition count 144
Applied a total of 2 rules in 21 ms. Remains 201 /202 variables (removed 1) and now considering 144/145 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21 ms. Remains : 201/202 places, 144/145 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1962151200371528568.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12235956789042372646.kers'
[2026-05-25 06:52:16] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1962151200371528568.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12235956789042372646.kers]
Culling duplicate invariants (modulo rational): removing 29 columns.
Culled 29 columns in 0 ms.
// Phase 1: matrix 144 rows 172 cols 557 entries
Finished phase 1 with 106 SingleSign rule and 32 generalized
[2026-05-25 06:52:16] [INFO ] Computed 63 invariants in 1 ms
Computed 63 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-12235956789042372646.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (47691 resets) in 2076 ms. (481 steps per ms)
BEST_FIRST walk for 3000001 steps (27333 resets) in 2811 ms. (1066 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
[2026-05-25 06:52:21] [INFO ] Invariant cache hit.
[2026-05-25 06:52:21] [INFO ] [Real]Absence check using 39 positive place invariants in 17 ms returned sat
[2026-05-25 06:52:21] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 17 ms returned sat
[2026-05-25 06:52:21] [INFO ] [Real]Absence check using state equation in 165 ms returned sat
[2026-05-25 06:52:21] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 20 ms.
[2026-05-25 06:52:21] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:21] [INFO ] [Nat]Absence check using 39 positive place invariants in 22 ms returned sat
[2026-05-25 06:52:21] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 29 ms returned sat
[2026-05-25 06:52:21] [INFO ] [Nat]Absence check using state equation in 146 ms returned sat
[2026-05-25 06:52:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 111 ms
[2026-05-25 06:52:21] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 17 ms.
[2026-05-25 06:52:22] [INFO ] Added : 86 causal constraints over 18 iterations in 435 ms. Result :sat
Minimization took 110 ms.
[2026-05-25 06:52:22] [INFO ] [Real]Absence check using 39 positive place invariants in 18 ms returned sat
[2026-05-25 06:52:22] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 28 ms returned sat
[2026-05-25 06:52:22] [INFO ] [Real]Absence check using state equation in 148 ms returned sat
[2026-05-25 06:52:22] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 19 ms.
[2026-05-25 06:52:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:22] [INFO ] [Nat]Absence check using 39 positive place invariants in 18 ms returned sat
[2026-05-25 06:52:22] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 41 ms returned sat
[2026-05-25 06:52:23] [INFO ] [Nat]Absence check using state equation in 155 ms returned sat
[2026-05-25 06:52:23] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 19 ms.
[2026-05-25 06:52:23] [INFO ] Added : 103 causal constraints over 21 iterations in 507 ms. Result :sat
Minimization took 115 ms.
[2026-05-25 06:52:23] [INFO ] [Real]Absence check using 39 positive place invariants in 18 ms returned sat
[2026-05-25 06:52:23] [INFO ] [Real]Absence check using 39 positive and 24 generalized place invariants in 29 ms returned sat
[2026-05-25 06:52:23] [INFO ] [Real]Absence check using state equation in 154 ms returned sat
[2026-05-25 06:52:23] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 19 ms.
[2026-05-25 06:52:24] [INFO ] Solution in real domain found non-integer solution.
[2026-05-25 06:52:24] [INFO ] [Nat]Absence check using 39 positive place invariants in 19 ms returned sat
[2026-05-25 06:52:24] [INFO ] [Nat]Absence check using 39 positive and 24 generalized place invariants in 28 ms returned sat
[2026-05-25 06:52:24] [INFO ] [Nat]Absence check using state equation in 144 ms returned sat
[2026-05-25 06:52:24] [INFO ] Computed and/alt/rep : 130/265/130 causal constraints (skipped 11 transitions) in 19 ms.
[2026-05-25 06:52:24] [INFO ] Added : 104 causal constraints over 21 iterations in 527 ms. Result :sat
Minimization took 118 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 201 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 201/201 places, 144/144 transitions.
Applied a total of 0 rules in 8 ms. Remains 201 /201 variables (removed 0) and now considering 144/144 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 201/201 places, 144/144 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 201/201 places, 144/144 transitions.
Applied a total of 0 rules in 8 ms. Remains 201 /201 variables (removed 0) and now considering 144/144 (removed 0) transitions.
[2026-05-25 06:52:25] [INFO ] Invariant cache hit.
[2026-05-25 06:52:26] [INFO ] Implicit Places using invariants in 225 ms returned []
[2026-05-25 06:52:26] [INFO ] Invariant cache hit.
[2026-05-25 06:52:26] [INFO ] Implicit Places using invariants and state equation in 479 ms returned []
Implicit Place search using SMT with State Equation took 706 ms to find 0 implicit places.
[2026-05-25 06:52:26] [INFO ] Redundant transitions in 6 ms returned []
Running 141 sub problems to find dead transitions.
[2026-05-25 06:52:26] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/198 variables, 39/39 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/198 variables, 10/49 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/198 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 3 (OVERLAPS) 3/201 variables, 14/63 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/201 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 5 (OVERLAPS) 144/345 variables, 201/264 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/345 variables, 5/269 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/345 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 8 (OVERLAPS) 0/345 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 141 unsolved
No progress, stopping.
After SMT solving in domain Real declared 345/345 variables, and 269 constraints, problems are : Problem set: 0 solved, 141 unsolved in 12579 ms.
Refiners :[Positive P Invariants (semi-flows): 39/39 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 201/201 constraints, PredecessorRefiner: 141/141 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 141 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/198 variables, 39/39 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/198 variables, 10/49 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/198 variables, 5/54 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/198 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 4 (OVERLAPS) 3/201 variables, 14/68 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/201 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 6 (OVERLAPS) 144/345 variables, 201/269 constraints. Problems are: Problem set: 0 solved, 141 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/345 variables, 141/410 constraints. Problems are: Problem set: 0 solved, 141 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 345/345 variables, and 410 constraints, problems are : Problem set: 0 solved, 141 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 39/39 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 201/201 constraints, PredecessorRefiner: 141/141 constraints, Known Traps: 5/5 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 42737ms problems are : Problem set: 0 solved, 141 unsolved
Search for dead transitions found 0 dead transitions in 42752ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 43513 ms. Remains : 201/201 places, 144/144 transitions.
RANDOM walk for 40000 steps (1919 resets) in 1980 ms. (20 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (371 resets) in 508 ms. (78 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (363 resets) in 411 ms. (97 steps per ms) remains 6/6 properties
[2026-05-25 06:53:10] [INFO ] Flatten gal took : 183 ms
[2026-05-25 06:53:10] [INFO ] Flatten gal took : 80 ms
BEST_FIRST walk for 40002 steps (331 resets) in 371 ms. (107 steps per ms) remains 6/6 properties
[2026-05-25 06:53:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14506507963693817143.gal : 24 ms
[2026-05-25 06:53:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11505898035115351479.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14506507963693817143.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11505898035115351479.prop' '--nowitness' '--gen-order' 'FOLLOW'
its-reach command run as :
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality11505898035115351479.prop.
BEST_FIRST walk for 40002 steps (349 resets) in 364 ms. (109 steps per ms) remains 6/6 properties
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :4 after 28
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :28 after 56
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :56 after 68
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :68 after 1376
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :1376 after 1544
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :1544 after 3552
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :3552 after 77064
BEST_FIRST walk for 40004 steps (346 resets) in 317 ms. (125 steps per ms) remains 6/6 properties
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :77064 after 237080
BEST_FIRST walk for 40004 steps (354 resets) in 242 ms. (164 steps per ms) remains 6/6 properties
SDD proceeding with computation,6 properties remain. new max is 2048
SDD size :1.84298e+06 after 1.94674e+06
SDD proceeding with computation,6 properties remain. new max is 4096
SDD size :1.94674e+06 after 2.00129e+09
Finished probabilistic random walk after 190487 steps, run visited all 6 properties in 1474 ms. (steps per millisecond=129 )
Probabilistic random walk after 190487 steps, saw 56318 distinct states, run finished after 1486 ms. (steps per millisecond=128 ) properties seen :6
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA DES-PT-20b-UpperBounds-00 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20b-UpperBounds-11 1 TECHNIQUES REACHABILITY_MAX
FORMULA DES-PT-20b-UpperBounds-13 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (after reachability check) : Max Seen:[] Max Struct:[]
[2026-05-25 06:53:12] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[] Max Struct:[]
RANDOM walk for 1000000 steps (47885 resets) in 2367 ms. (422 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 95166 ms.
BK_STOP 1779691994753
--------------------
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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="DES-PT-20b"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
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 itstools"
echo " Input is DES-PT-20b, 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 r082-smll-177946993700389"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/DES-PT-20b.tgz
mv DES-PT-20b execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "UpperBounds.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;