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-177946993600189.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 DBSingleClientW-PT-d1m10, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r082-smll-177946993600189
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 828K
-rw-r--r-- 1 mcc users 7.2K Mar 6 18:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 6 18:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Mar 6 18:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K Mar 6 18:21 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 08:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 08:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.4K Mar 6 18:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 55K Mar 6 18:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 18:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 101K Mar 6 18:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 432K 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 DBSingleClientW-PT-d1m10-UpperBounds-00
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-01
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-02
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-03
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-04
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-05
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-06
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-07
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-08
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-09
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-10
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-11
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-12
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-13
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-14
FORMULA_NAME DBSingleClientW-PT-d1m10-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779596499363

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DBSingleClientW-PT-d1m10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-24 04:21:41] [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]
[2026-05-24 04:21:41] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 04:21:42] [INFO ] Load time of PNML (sax parser for PT used): 244 ms
[2026-05-24 04:21:42] [INFO ] Transformed 1440 places.
[2026-05-24 04:21:42] [INFO ] Transformed 672 transitions.
[2026-05-24 04:21:42] [INFO ] Parsed PT model containing 1440 places and 672 transitions and 2688 arcs in 406 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 11 ms.
Deduced a syphon composed of 1093 places in 10 ms
Reduce places removed 1093 places and 0 transitions.
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-03 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-05 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-06 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-08 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-09 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-13 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-15 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3192981340669990983.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12503601519073017790.kers'
[2026-05-24 04:21:42] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3192981340669990983.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12503601519073017790.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 672 rows 347 cols 1850 entries
Finished phase 1 with 215 SingleSign rule and 126 generalized
[2026-05-24 04:21:42] [INFO ] Computed 6 invariants in 4 ms
Computed 6 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-12503601519073017790.kers
Total runtime 7 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
RANDOM walk for 10000 steps (2273 resets) in 203 ms. (49 steps per ms)
BEST_FIRST walk for 40002 steps (3776 resets) in 421 ms. (94 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
[2026-05-24 04:21:43] [INFO ] Invariant cache hit.
[2026-05-24 04:21:43] [INFO ] [Real]Absence check using 2 positive place invariants in 15 ms returned sat
[2026-05-24 04:21:43] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 13 ms returned sat
[2026-05-24 04:21:44] [INFO ] [Real]Absence check using state equation in 475 ms returned sat
[2026-05-24 04:21:44] [INFO ] State equation strengthened by 418 read => feed constraints.
[2026-05-24 04:21:44] [INFO ] [Real]Added 418 Read/Feed constraints in 337 ms returned sat
[2026-05-24 04:21:44] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:21:44] [INFO ] [Nat]Absence check using 2 positive place invariants in 9 ms returned sat
[2026-05-24 04:21:44] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 10 ms returned sat
[2026-05-24 04:21:45] [INFO ] [Nat]Absence check using state equation in 432 ms returned sat
[2026-05-24 04:21:45] [INFO ] [Nat]Added 418 Read/Feed constraints in 192 ms returned sat
[2026-05-24 04:21:49] [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.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:874)
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)
[2026-05-24 04:21:50] [INFO ] [Real]Absence check using 2 positive place invariants in 9 ms returned sat
[2026-05-24 04:21:50] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 10 ms returned sat
[2026-05-24 04:21:50] [INFO ] [Real]Absence check using state equation in 385 ms returned sat
[2026-05-24 04:21:50] [INFO ] [Real]Added 418 Read/Feed constraints in 197 ms returned sat
[2026-05-24 04:21:50] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:21:50] [INFO ] [Nat]Absence check using 2 positive place invariants in 9 ms returned sat
[2026-05-24 04:21:50] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 8 ms returned sat
[2026-05-24 04:21:51] [INFO ] [Nat]Absence check using state equation in 380 ms returned sat
[2026-05-24 04:21:51] [INFO ] [Nat]Added 418 Read/Feed constraints in 217 ms returned sat
[2026-05-24 04:21:51] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 294 ms.
[2026-05-24 04:21:52] [INFO ] Added : 12 causal constraints over 3 iterations in 715 ms. Result :sat
Minimization took 502 ms.
[2026-05-24 04:21:52] [INFO ] [Real]Absence check using 2 positive place invariants in 6 ms returned sat
[2026-05-24 04:21:52] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 7 ms returned sat
[2026-05-24 04:21:53] [INFO ] [Real]Absence check using state equation in 250 ms returned sat
[2026-05-24 04:21:53] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:21:53] [INFO ] [Nat]Absence check using 2 positive place invariants in 5 ms returned sat
[2026-05-24 04:21:53] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 12 ms returned sat
[2026-05-24 04:21:53] [INFO ] [Nat]Absence check using state equation in 226 ms returned sat
[2026-05-24 04:21:53] [INFO ] [Nat]Added 418 Read/Feed constraints in 122 ms returned sat
[2026-05-24 04:21:55] [INFO ] Trap strengthening (SAT) tested/added 4/3 trap constraints in 1522 ms
[2026-05-24 04:21:55] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 208 ms.
[2026-05-24 04:21:56] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 684 ms
[2026-05-24 04:21:56] [INFO ] Added : 13 causal constraints over 4 iterations in 1402 ms. Result :sat
Minimization took 503 ms.
[2026-05-24 04:21:57] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2026-05-24 04:21:57] [INFO ] [Real]Absence check using 2 positive and 4 generalized place invariants in 12 ms returned sat
[2026-05-24 04:21:57] [INFO ] [Real]Absence check using state equation in 369 ms returned sat
[2026-05-24 04:21:57] [INFO ] [Real]Added 418 Read/Feed constraints in 222 ms returned sat
[2026-05-24 04:21:57] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:21:57] [INFO ] [Nat]Absence check using 2 positive place invariants in 8 ms returned sat
[2026-05-24 04:21:57] [INFO ] [Nat]Absence check using 2 positive and 4 generalized place invariants in 11 ms returned sat
[2026-05-24 04:21:58] [INFO ] [Nat]Absence check using state equation in 353 ms returned sat
[2026-05-24 04:21:58] [INFO ] [Nat]Added 418 Read/Feed constraints in 203 ms returned sat
[2026-05-24 04:21:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 592 ms
[2026-05-24 04:21:59] [INFO ] Computed and/alt/rep : 126/406/126 causal constraints (skipped 545 transitions) in 138 ms.
[2026-05-24 04:21:59] [INFO ] Added : 11 causal constraints over 3 iterations in 547 ms. Result :sat
Minimization took 506 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
Support contains 4 out of 347 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 347/347 places, 672/672 transitions.
Graph (complete) has 1246 edges and 347 vertex of which 325 are kept as prefixes of interest. Removing 22 places using SCC suffix rule.6 ms
Discarding 22 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Ensure Unique test removed 80 transitions
Reduce isomorphic transitions removed 88 transitions.
Iterating post reduction 0 with 88 rules applied. Total rules applied 89 place count 325 transition count 584
Discarding 94 places :
Symmetric choice reduction at 1 with 94 rule applications. Total rules 183 place count 231 transition count 329
Iterating global reduction 1 with 94 rules applied. Total rules applied 277 place count 231 transition count 329
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 4 rules applied. Total rules applied 281 place count 231 transition count 325
Discarding 72 places :
Symmetric choice reduction at 2 with 72 rule applications. Total rules 353 place count 159 transition count 253
Iterating global reduction 2 with 72 rules applied. Total rules applied 425 place count 159 transition count 253
Ensure Unique test removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 430 place count 159 transition count 248
Discarding 39 places :
Symmetric choice reduction at 3 with 39 rule applications. Total rules 469 place count 120 transition count 186
Iterating global reduction 3 with 39 rules applied. Total rules applied 508 place count 120 transition count 186
Ensure Unique test removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Iterating post reduction 3 with 21 rules applied. Total rules applied 529 place count 120 transition count 165
Discarding 11 places :
Symmetric choice reduction at 4 with 11 rule applications. Total rules 540 place count 109 transition count 147
Iterating global reduction 4 with 11 rules applied. Total rules applied 551 place count 109 transition count 147
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 552 place count 109 transition count 146
Discarding 9 places :
Symmetric choice reduction at 5 with 9 rule applications. Total rules 561 place count 100 transition count 137
Iterating global reduction 5 with 9 rules applied. Total rules applied 570 place count 100 transition count 137
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 573 place count 100 transition count 134
Discarding 7 places :
Symmetric choice reduction at 6 with 7 rule applications. Total rules 580 place count 93 transition count 127
Iterating global reduction 6 with 7 rules applied. Total rules applied 587 place count 93 transition count 127
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 6 with 3 rules applied. Total rules applied 590 place count 93 transition count 124
Discarding 1 places :
Symmetric choice reduction at 7 with 1 rule applications. Total rules 591 place count 92 transition count 122
Iterating global reduction 7 with 1 rules applied. Total rules applied 592 place count 92 transition count 122
Applied a total of 592 rules in 228 ms. Remains 92 /347 variables (removed 255) and now considering 122/672 (removed 550) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 245 ms. Remains : 92/347 places, 122/672 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5067148210273989443.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10253395160732327119.kers'
[2026-05-24 04:22:00] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5067148210273989443.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10253395160732327119.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 122 rows 92 cols 397 entries
Finished phase 1 with 87 SingleSign rule and 3 generalized
[2026-05-24 04:22:00] [INFO ] Computed 2 invariants in 1 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-10253395160732327119.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
RANDOM walk for 1000000 steps (229926 resets) in 1916 ms. (521 steps per ms)
BEST_FIRST walk for 4000002 steps (394098 resets) in 3162 ms. (1264 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
[2026-05-24 04:22:05] [INFO ] Invariant cache hit.
[2026-05-24 04:22:05] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-24 04:22:05] [INFO ] [Real]Absence check using state equation in 57 ms returned sat
[2026-05-24 04:22:05] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 04:22:05] [INFO ] [Real]Added 41 Read/Feed constraints in 10 ms returned sat
[2026-05-24 04:22:05] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:22:05] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 2 ms returned sat
[2026-05-24 04:22:05] [INFO ] [Nat]Absence check using state equation in 58 ms returned sat
[2026-05-24 04:22:05] [INFO ] [Nat]Added 41 Read/Feed constraints in 13 ms returned sat
[2026-05-24 04:22:05] [INFO ] Computed and/alt/rep : 32/77/32 causal constraints (skipped 89 transitions) in 10 ms.
[2026-05-24 04:22:05] [INFO ] Added : 8 causal constraints over 3 iterations in 95 ms. Result :sat
Minimization took 111 ms.
[2026-05-24 04:22:06] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Real]Absence check using state equation in 96 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Real]Added 41 Read/Feed constraints in 19 ms returned sat
[2026-05-24 04:22:06] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:22:06] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 4 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Nat]Absence check using state equation in 76 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Nat]Added 41 Read/Feed constraints in 21 ms returned sat
[2026-05-24 04:22:06] [INFO ] Computed and/alt/rep : 32/77/32 causal constraints (skipped 89 transitions) in 15 ms.
[2026-05-24 04:22:06] [INFO ] Added : 9 causal constraints over 2 iterations in 71 ms. Result :sat
Minimization took 91 ms.
[2026-05-24 04:22:06] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Real]Absence check using state equation in 71 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Real]Added 41 Read/Feed constraints in 21 ms returned sat
[2026-05-24 04:22:06] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:22:06] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2026-05-24 04:22:06] [INFO ] [Nat]Added 41 Read/Feed constraints in 22 ms returned sat
[2026-05-24 04:22:06] [INFO ] Computed and/alt/rep : 32/77/32 causal constraints (skipped 89 transitions) in 15 ms.
[2026-05-24 04:22:06] [INFO ] Added : 10 causal constraints over 2 iterations in 79 ms. Result :sat
Minimization took 102 ms.
[2026-05-24 04:22:07] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:07] [INFO ] [Real]Absence check using state equation in 75 ms returned sat
[2026-05-24 04:22:07] [INFO ] [Real]Added 41 Read/Feed constraints in 15 ms returned sat
[2026-05-24 04:22:07] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:22:07] [INFO ] [Nat]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:07] [INFO ] [Nat]Absence check using state equation in 75 ms returned sat
[2026-05-24 04:22:07] [INFO ] [Nat]Added 41 Read/Feed constraints in 20 ms returned sat
[2026-05-24 04:22:07] [INFO ] Computed and/alt/rep : 32/77/32 causal constraints (skipped 89 transitions) in 13 ms.
[2026-05-24 04:22:07] [INFO ] Added : 10 causal constraints over 3 iterations in 82 ms. Result :sat
Minimization took 101 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0] Max Struct:[1, 1, 750, 12]
Support contains 4 out of 92 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 92/92 places, 122/122 transitions.
Applied a total of 0 rules in 11 ms. Remains 92 /92 variables (removed 0) and now considering 122/122 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 92/92 places, 122/122 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 92/92 places, 122/122 transitions.
Applied a total of 0 rules in 12 ms. Remains 92 /92 variables (removed 0) and now considering 122/122 (removed 0) transitions.
[2026-05-24 04:22:07] [INFO ] Invariant cache hit.
[2026-05-24 04:22:07] [INFO ] Implicit Places using invariants in 164 ms returned []
[2026-05-24 04:22:07] [INFO ] Invariant cache hit.
[2026-05-24 04:22:07] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-24 04:22:08] [INFO ] Implicit Places using invariants and state equation in 549 ms returned []
Implicit Place search using SMT with State Equation took 716 ms to find 0 implicit places.
[2026-05-24 04:22:08] [INFO ] Redundant transitions in 6 ms returned []
Running 121 sub problems to find dead transitions.
[2026-05-24 04:22:08] [INFO ] Invariant cache hit.
[2026-05-24 04:22:08] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/91 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/91 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 2 (OVERLAPS) 1/92 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/92 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 4 (OVERLAPS) 122/214 variables, 92/94 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/214 variables, 41/135 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/214 variables, 1/136 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/214 variables, 0/136 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 8 (OVERLAPS) 0/214 variables, 0/136 constraints. Problems are: Problem set: 0 solved, 121 unsolved
No progress, stopping.
After SMT solving in domain Real declared 214/214 variables, and 136 constraints, problems are : Problem set: 0 solved, 121 unsolved in 8455 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 92/92 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 121/121 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 121 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/91 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/91 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/91 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 3 (OVERLAPS) 1/92 variables, 1/3 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/92 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 5 (OVERLAPS) 122/214 variables, 92/95 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/214 variables, 41/136 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/214 variables, 121/257 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/214 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 121 unsolved
At refinement iteration 9 (OVERLAPS) 0/214 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 121 unsolved
No progress, stopping.
After SMT solving in domain Int declared 214/214 variables, and 257 constraints, problems are : Problem set: 0 solved, 121 unsolved in 30023 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 92/92 constraints, ReadFeed: 41/41 constraints, PredecessorRefiner: 121/121 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 38837ms problems are : Problem set: 0 solved, 121 unsolved
Search for dead transitions found 0 dead transitions in 38854ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 39663 ms. Remains : 92/92 places, 122/122 transitions.
RANDOM walk for 40000 steps (9183 resets) in 1156 ms. (34 steps per ms) remains 8/8 properties
[2026-05-24 04:22:47] [INFO ] Flatten gal took : 181 ms
[2026-05-24 04:22:48] [INFO ] Flatten gal took : 82 ms
[2026-05-24 04:22:48] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10013206763223092413.gal : 38 ms
[2026-05-24 04:22:48] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11732778358473841587.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality10013206763223092413.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11732778358473841587.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (3959 resets) in 1166 ms. (34 steps per ms) remains 8/8 properties

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/ReachabilityCardinality11732778358473841587.prop.
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :7 after 26
BEST_FIRST walk for 40003 steps (3906 resets) in 616 ms. (64 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :26 after 58
SDD proceeding with computation,8 properties remain. new max is 32
SDD size :58 after 120
SDD proceeding with computation,8 properties remain. new max is 64
SDD size :120 after 224
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :224 after 422
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :422 after 768
BEST_FIRST walk for 40002 steps (3899 resets) in 402 ms. (99 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (3970 resets) in 313 ms. (127 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (4027 resets) in 169 ms. (235 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (3911 resets) in 132 ms. (300 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 512
SDD size :768 after 1784
BEST_FIRST walk for 40003 steps (4017 resets) in 148 ms. (268 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40001 steps (4020 resets) in 145 ms. (273 steps per ms) remains 8/8 properties
SDD proceeding with computation,8 properties remain. new max is 1024
SDD size :1784 after 12016
SDD proceeding with computation,8 properties remain. new max is 2048
SDD size :12016 after 27731
SDD proceeding with computation,8 properties remain. new max is 4096
SDD size :27731 after 167073
SDD proceeding with computation,8 properties remain. new max is 8192
SDD size :167073 after 360739
Interrupted probabilistic random walk after 858869 steps, run timeout after 3001 ms. (steps per millisecond=286 ) properties seen :6 out of 8
Probabilistic random walk after 858869 steps, saw 337586 distinct states, run finished after 3007 ms. (steps per millisecond=285 ) properties seen :6
[2026-05-24 04:22:51] [INFO ] Invariant cache hit.
[2026-05-24 04:22:51] [INFO ] State equation strengthened by 41 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 1 (OVERLAPS) 53/55 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/55 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 3 (OVERLAPS) 10/65 variables, 1/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/65 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 89/154 variables, 65/67 constraints. Problems are: Problem set: 0 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 2 unsolved
Problem MAX2 is UNSAT
Problem MAX3 is UNSAT
After SMT solving in domain Real declared 205/214 variables, and 89 constraints, problems are : Problem set: 2 solved, 0 unsolved in 234 ms.
Refiners :[Generalized P Invariants (flows): 2/2 constraints, State Equation: 87/92 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 241ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-00 1 TECHNIQUES REACHABILITY_MAX
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-01 1 TECHNIQUES REACHABILITY_MAX
Current structural bounds on expressions (after reachability check) : Max Seen:[1, 1] Max Struct:[749, 11]
[2026-05-24 04:22:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1] Max Struct:[749, 11]
RANDOM walk for 1000000 steps (229477 resets) in 1565 ms. (638 steps per ms)
BEST_FIRST walk for 2000001 steps (196433 resets) in 1534 ms. (1302 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1] Max Struct:[749, 11]
[2026-05-24 04:22:55] [INFO ] Invariant cache hit.
[2026-05-24 04:22:55] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:55] [INFO ] [Real]Absence check using state equation in 71 ms returned unsat
[2026-05-24 04:22:55] [INFO ] [Real]Absence check using 0 positive and 2 generalized place invariants in 3 ms returned sat
[2026-05-24 04:22:55] [INFO ] [Real]Absence check using state equation in 68 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1] Max Struct:[1, 1]
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA DBSingleClientW-PT-d1m10-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 73460 ms.

BK_STOP 1779596575371

--------------------
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="DBSingleClientW-PT-d1m10"
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 DBSingleClientW-PT-d1m10, 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-177946993600189"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d1m10.tgz
mv DBSingleClientW-PT-d1m10 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 ;