./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version 48c9605d
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-08 05:12:23,541 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-08 05:12:23,603 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2025-02-08 05:12:23,609 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-08 05:12:23,610 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-08 05:12:23,634 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-08 05:12:23,635 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-08 05:12:23,635 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-08 05:12:23,635 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-08 05:12:23,636 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-08 05:12:23,636 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-08 05:12:23,637 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-08 05:12:23,637 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-08 05:12:23,638 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 05:12:23,638 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-08 05:12:23,638 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82435f17481c054c9c5a8a1deca188b6bf36f1a34e751392b5a27cd7180adc30
[2025-02-08 05:12:23,862 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-08 05:12:23,870 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-08 05:12:23,871 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-08 05:12:23,873 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-08 05:12:23,873 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-08 05:12:23,874 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i
[2025-02-08 05:12:25,014 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/455839c4b/39fb3582c26d481aadc8c078b605f8ba/FLAG0d2312813
[2025-02-08 05:12:25,295 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-08 05:12:25,296 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur.i
[2025-02-08 05:12:25,308 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/455839c4b/39fb3582c26d481aadc8c078b605f8ba/FLAG0d2312813
[2025-02-08 05:12:25,321 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/455839c4b/39fb3582c26d481aadc8c078b605f8ba
[2025-02-08 05:12:25,323 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-08 05:12:25,324 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-08 05:12:25,328 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-08 05:12:25,328 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-08 05:12:25,331 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-08 05:12:25,331 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,332 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d441a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25, skipping insertion in model container
[2025-02-08 05:12:25,333 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,360 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-08 05:12:25,594 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 05:12:25,606 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-08 05:12:25,639 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 05:12:25,669 INFO  L204         MainTranslator]: Completed translation
[2025-02-08 05:12:25,669 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25 WrapperNode
[2025-02-08 05:12:25,670 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-08 05:12:25,671 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-08 05:12:25,671 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-08 05:12:25,671 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-08 05:12:25,676 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,688 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,711 INFO  L138                Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 201
[2025-02-08 05:12:25,713 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-08 05:12:25,714 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-08 05:12:25,714 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-08 05:12:25,714 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-08 05:12:25,719 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,719 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,726 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,726 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,737 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,742 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,743 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,747 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,749 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-08 05:12:25,753 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-08 05:12:25,753 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-08 05:12:25,753 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-08 05:12:25,754 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (1/1) ...
[2025-02-08 05:12:25,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 05:12:25,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-08 05:12:25,785 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-08 05:12:25,788 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-08 05:12:25,805 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2025-02-08 05:12:25,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2025-02-08 05:12:25,806 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-08 05:12:25,806 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-08 05:12:25,808 WARN  L227             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2025-02-08 05:12:25,911 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-08 05:12:25,913 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-08 05:12:26,192 INFO  L304             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2025-02-08 05:12:26,193 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-08 05:12:26,285 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-08 05:12:26,288 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-08 05:12:26,288 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:26 BoogieIcfgContainer
[2025-02-08 05:12:26,289 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-08 05:12:26,290 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-08 05:12:26,290 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-08 05:12:26,294 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-08 05:12:26,294 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:12:25" (1/3) ...
[2025-02-08 05:12:26,295 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4f951d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:26, skipping insertion in model container
[2025-02-08 05:12:26,295 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:12:25" (2/3) ...
[2025-02-08 05:12:26,295 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4f951d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:12:26, skipping insertion in model container
[2025-02-08 05:12:26,295 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:12:26" (3/3) ...
[2025-02-08 05:12:26,296 INFO  L128   eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i
[2025-02-08 05:12:26,308 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-08 05:12:26,309 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG 37_stack_lock_p0_vs_concur.i that has 2 procedures, 194 locations, 1 initial locations, 2 loop locations, and 15 error locations.
[2025-02-08 05:12:26,310 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2025-02-08 05:12:26,390 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2025-02-08 05:12:26,428 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 197 places, 199 transitions, 402 flow
[2025-02-08 05:12:26,486 INFO  L124   PetriNetUnfolderBase]: 5/206 cut-off events.
[2025-02-08 05:12:26,490 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2025-02-08 05:12:26,495 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 210 conditions, 206 events. 5/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 159 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. 
[2025-02-08 05:12:26,495 INFO  L82        GeneralOperation]: Start removeDead. Operand has 197 places, 199 transitions, 402 flow
[2025-02-08 05:12:26,499 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 197 places, 199 transitions, 402 flow
[2025-02-08 05:12:26,506 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 05:12:26,518 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ff35864, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 05:12:26,518 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2025-02-08 05:12:26,538 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2025-02-08 05:12:26,539 INFO  L124   PetriNetUnfolderBase]: 0/107 cut-off events.
[2025-02-08 05:12:26,539 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2025-02-08 05:12:26,539 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:26,540 INFO  L206   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:26,540 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2025-02-08 05:12:26,544 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:26,545 INFO  L85        PathProgramCache]: Analyzing trace with hash 1760329200, now seen corresponding path program 1 times
[2025-02-08 05:12:26,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:26,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454173738]
[2025-02-08 05:12:26,550 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:26,550 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:26,646 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes.
[2025-02-08 05:12:26,718 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements.
[2025-02-08 05:12:26,719 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:26,719 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:26,720 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-02-08 05:12:26,735 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes.
[2025-02-08 05:12:26,777 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements.
[2025-02-08 05:12:26,777 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:26,777 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:26,808 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-02-08 05:12:26,809 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2025-02-08 05:12:26,810 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining)
[2025-02-08 05:12:26,811 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining)
[2025-02-08 05:12:26,811 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining)
[2025-02-08 05:12:26,811 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining)
[2025-02-08 05:12:26,811 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining)
[2025-02-08 05:12:26,811 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining)
[2025-02-08 05:12:26,812 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining)
[2025-02-08 05:12:26,813 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining)
[2025-02-08 05:12:26,814 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining)
[2025-02-08 05:12:26,815 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-08 05:12:26,816 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-02-08 05:12:26,818 WARN  L246   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2025-02-08 05:12:26,820 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2025-02-08 05:12:26,873 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2025-02-08 05:12:26,878 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 300 places, 305 transitions, 620 flow
[2025-02-08 05:12:26,943 INFO  L124   PetriNetUnfolderBase]: 10/321 cut-off events.
[2025-02-08 05:12:26,943 INFO  L125   PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2025-02-08 05:12:26,947 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 329 conditions, 321 events. 10/321 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 641 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. 
[2025-02-08 05:12:26,948 INFO  L82        GeneralOperation]: Start removeDead. Operand has 300 places, 305 transitions, 620 flow
[2025-02-08 05:12:26,951 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 300 places, 305 transitions, 620 flow
[2025-02-08 05:12:26,951 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 05:12:26,952 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ff35864, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 05:12:26,952 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 46 error locations.
[2025-02-08 05:12:26,964 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2025-02-08 05:12:26,964 INFO  L124   PetriNetUnfolderBase]: 0/116 cut-off events.
[2025-02-08 05:12:26,964 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2025-02-08 05:12:26,964 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:26,964 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:26,964 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 42 more)] ===
[2025-02-08 05:12:26,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:26,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -257989951, now seen corresponding path program 1 times
[2025-02-08 05:12:26,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:26,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31953261]
[2025-02-08 05:12:26,966 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:26,966 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:26,986 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes.
[2025-02-08 05:12:27,006 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements.
[2025-02-08 05:12:27,007 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:27,007 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 05:12:27,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 05:12:27,096 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 05:12:27,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31953261]
[2025-02-08 05:12:27,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31953261] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 05:12:27,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 05:12:27,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2025-02-08 05:12:27,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122147245]
[2025-02-08 05:12:27,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 05:12:27,104 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-08 05:12:27,107 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 05:12:27,121 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-08 05:12:27,121 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-08 05:12:27,123 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 270 out of 305
[2025-02-08 05:12:27,128 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 305 transitions, 620 flow. Second operand  has 2 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:27,128 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-02-08 05:12:27,129 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 305
[2025-02-08 05:12:27,131 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-02-08 05:12:27,348 INFO  L124   PetriNetUnfolderBase]: 44/801 cut-off events.
[2025-02-08 05:12:27,349 INFO  L125   PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES.
[2025-02-08 05:12:27,355 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 897 conditions, 801 events. 44/801 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4041 event pairs, 30 based on Foata normal form. 93/803 useless extension candidates. Maximal degree in co-relation 191. Up to 73 conditions per place. 
[2025-02-08 05:12:27,358 INFO  L140   encePairwiseOnDemand]: 284/305 looper letters, 12 selfloop transitions, 0 changer transitions 0/273 dead transitions.
[2025-02-08 05:12:27,358 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 273 transitions, 580 flow
[2025-02-08 05:12:27,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-08 05:12:27,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2025-02-08 05:12:27,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 573 transitions.
[2025-02-08 05:12:27,371 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.9393442622950819
[2025-02-08 05:12:27,372 INFO  L175             Difference]: Start difference. First operand has 300 places, 305 transitions, 620 flow. Second operand 2 states and 573 transitions.
[2025-02-08 05:12:27,373 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 273 transitions, 580 flow
[2025-02-08 05:12:27,377 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 273 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places.
[2025-02-08 05:12:27,382 INFO  L231             Difference]: Finished difference. Result has 275 places, 273 transitions, 556 flow
[2025-02-08 05:12:27,385 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=556, PETRI_PLACES=275, PETRI_TRANSITIONS=273}
[2025-02-08 05:12:27,388 INFO  L279   CegarLoopForPetriNet]: 300 programPoint places, -25 predicate places.
[2025-02-08 05:12:27,388 INFO  L471      AbstractCegarLoop]: Abstraction has has 275 places, 273 transitions, 556 flow
[2025-02-08 05:12:27,388 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 271.0) internal successors, (542), 2 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:27,389 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:27,389 INFO  L206   CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:27,390 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-08 05:12:27,390 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 42 more)] ===
[2025-02-08 05:12:27,392 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:27,392 INFO  L85        PathProgramCache]: Analyzing trace with hash -1079842484, now seen corresponding path program 1 times
[2025-02-08 05:12:27,392 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:27,392 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559614770]
[2025-02-08 05:12:27,392 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:27,392 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:27,415 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes.
[2025-02-08 05:12:27,427 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements.
[2025-02-08 05:12:27,428 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:27,428 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:27,428 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-02-08 05:12:27,432 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes.
[2025-02-08 05:12:27,447 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements.
[2025-02-08 05:12:27,447 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:27,447 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:27,461 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-02-08 05:12:27,462 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining)
[2025-02-08 05:12:27,462 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining)
[2025-02-08 05:12:27,463 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining)
[2025-02-08 05:12:27,463 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining)
[2025-02-08 05:12:27,463 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining)
[2025-02-08 05:12:27,463 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining)
[2025-02-08 05:12:27,463 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining)
[2025-02-08 05:12:27,464 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining)
[2025-02-08 05:12:27,465 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining)
[2025-02-08 05:12:27,465 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-08 05:12:27,465 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1]
[2025-02-08 05:12:27,466 WARN  L246   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2025-02-08 05:12:27,466 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2025-02-08 05:12:27,525 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2025-02-08 05:12:27,529 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 403 places, 411 transitions, 840 flow
[2025-02-08 05:12:27,624 INFO  L124   PetriNetUnfolderBase]: 15/436 cut-off events.
[2025-02-08 05:12:27,624 INFO  L125   PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2025-02-08 05:12:27,629 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 449 conditions, 436 events. 15/436 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1282 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 325. Up to 4 conditions per place. 
[2025-02-08 05:12:27,629 INFO  L82        GeneralOperation]: Start removeDead. Operand has 403 places, 411 transitions, 840 flow
[2025-02-08 05:12:27,634 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 403 places, 411 transitions, 840 flow
[2025-02-08 05:12:27,637 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 05:12:27,637 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ff35864, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 05:12:27,637 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 61 error locations.
[2025-02-08 05:12:27,652 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2025-02-08 05:12:27,652 INFO  L124   PetriNetUnfolderBase]: 0/116 cut-off events.
[2025-02-08 05:12:27,652 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2025-02-08 05:12:27,653 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:27,653 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:27,653 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2025-02-08 05:12:27,653 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:27,653 INFO  L85        PathProgramCache]: Analyzing trace with hash 2007165221, now seen corresponding path program 1 times
[2025-02-08 05:12:27,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:27,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780052088]
[2025-02-08 05:12:27,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:27,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:27,680 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes.
[2025-02-08 05:12:27,695 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements.
[2025-02-08 05:12:27,695 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:27,695 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 05:12:27,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 05:12:27,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 05:12:27,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780052088]
[2025-02-08 05:12:27,761 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780052088] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 05:12:27,761 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 05:12:27,761 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2025-02-08 05:12:27,761 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326445791]
[2025-02-08 05:12:27,761 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 05:12:27,761 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-08 05:12:27,762 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 05:12:27,762 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-08 05:12:27,762 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-08 05:12:27,767 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 359 out of 411
[2025-02-08 05:12:27,767 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 411 transitions, 840 flow. Second operand  has 2 states, 2 states have (on average 360.0) internal successors, (720), 2 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:27,767 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-02-08 05:12:27,767 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 411
[2025-02-08 05:12:27,768 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-02-08 05:12:28,544 INFO  L124   PetriNetUnfolderBase]: 476/4683 cut-off events.
[2025-02-08 05:12:28,544 INFO  L125   PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES.
[2025-02-08 05:12:28,564 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 5500 conditions, 4683 events. 476/4683 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 46406 event pairs, 390 based on Foata normal form. 728/4838 useless extension candidates. Maximal degree in co-relation 887. Up to 649 conditions per place. 
[2025-02-08 05:12:28,581 INFO  L140   encePairwiseOnDemand]: 380/411 looper letters, 18 selfloop transitions, 0 changer transitions 0/365 dead transitions.
[2025-02-08 05:12:28,581 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 365 transitions, 784 flow
[2025-02-08 05:12:28,582 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-08 05:12:28,582 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2025-02-08 05:12:28,584 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 767 transitions.
[2025-02-08 05:12:28,585 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.9330900243309003
[2025-02-08 05:12:28,585 INFO  L175             Difference]: Start difference. First operand has 403 places, 411 transitions, 840 flow. Second operand 2 states and 767 transitions.
[2025-02-08 05:12:28,585 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 365 transitions, 784 flow
[2025-02-08 05:12:28,590 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 365 transitions, 782 flow, removed 1 selfloop flow, removed 0 redundant places.
[2025-02-08 05:12:28,594 INFO  L231             Difference]: Finished difference. Result has 367 places, 365 transitions, 746 flow
[2025-02-08 05:12:28,595 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=746, PETRI_PLACES=367, PETRI_TRANSITIONS=365}
[2025-02-08 05:12:28,597 INFO  L279   CegarLoopForPetriNet]: 403 programPoint places, -36 predicate places.
[2025-02-08 05:12:28,597 INFO  L471      AbstractCegarLoop]: Abstraction has has 367 places, 365 transitions, 746 flow
[2025-02-08 05:12:28,598 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 360.0) internal successors, (720), 2 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:28,599 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:28,599 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:28,599 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-08 05:12:28,599 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2025-02-08 05:12:28,599 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:28,600 INFO  L85        PathProgramCache]: Analyzing trace with hash 1101500687, now seen corresponding path program 1 times
[2025-02-08 05:12:28,600 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:28,600 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345626144]
[2025-02-08 05:12:28,600 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:28,600 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:28,619 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-02-08 05:12:28,644 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-02-08 05:12:28,646 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:28,646 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 05:12:29,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 05:12:29,286 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 05:12:29,286 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345626144]
[2025-02-08 05:12:29,286 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345626144] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 05:12:29,286 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 05:12:29,286 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-08 05:12:29,286 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586531373]
[2025-02-08 05:12:29,287 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 05:12:29,287 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-08 05:12:29,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 05:12:29,288 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-08 05:12:29,288 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2025-02-08 05:12:29,694 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 331 out of 411
[2025-02-08 05:12:29,696 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 365 transitions, 746 flow. Second operand  has 6 states, 6 states have (on average 332.5) internal successors, (1995), 6 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:29,696 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-02-08 05:12:29,696 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 411
[2025-02-08 05:12:29,696 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-02-08 05:12:32,914 INFO  L124   PetriNetUnfolderBase]: 5059/27341 cut-off events.
[2025-02-08 05:12:32,914 INFO  L125   PetriNetUnfolderBase]: For 1234/1234 co-relation queries the response was YES.
[2025-02-08 05:12:33,057 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 35979 conditions, 27341 events. 5059/27341 cut-off events. For 1234/1234 co-relation queries the response was YES. Maximal size of possible extension queue 776. Compared 383612 event pairs, 1447 based on Foata normal form. 0/23958 useless extension candidates. Maximal degree in co-relation 35973. Up to 4079 conditions per place. 
[2025-02-08 05:12:33,194 INFO  L140   encePairwiseOnDemand]: 384/411 looper letters, 96 selfloop transitions, 29 changer transitions 0/444 dead transitions.
[2025-02-08 05:12:33,195 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 444 transitions, 1194 flow
[2025-02-08 05:12:33,195 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-02-08 05:12:33,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2025-02-08 05:12:33,199 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2115 transitions.
[2025-02-08 05:12:33,202 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.8576642335766423
[2025-02-08 05:12:33,202 INFO  L175             Difference]: Start difference. First operand has 367 places, 365 transitions, 746 flow. Second operand 6 states and 2115 transitions.
[2025-02-08 05:12:33,202 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 444 transitions, 1194 flow
[2025-02-08 05:12:33,209 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 444 transitions, 1194 flow, removed 0 selfloop flow, removed 0 redundant places.
[2025-02-08 05:12:33,216 INFO  L231             Difference]: Finished difference. Result has 377 places, 393 transitions, 970 flow
[2025-02-08 05:12:33,217 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=970, PETRI_PLACES=377, PETRI_TRANSITIONS=393}
[2025-02-08 05:12:33,219 INFO  L279   CegarLoopForPetriNet]: 403 programPoint places, -26 predicate places.
[2025-02-08 05:12:33,220 INFO  L471      AbstractCegarLoop]: Abstraction has has 377 places, 393 transitions, 970 flow
[2025-02-08 05:12:33,221 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 332.5) internal successors, (1995), 6 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:33,221 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:33,221 INFO  L206   CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:33,221 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-08 05:12:33,222 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2025-02-08 05:12:33,222 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:33,222 INFO  L85        PathProgramCache]: Analyzing trace with hash 457598693, now seen corresponding path program 1 times
[2025-02-08 05:12:33,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:33,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072688011]
[2025-02-08 05:12:33,223 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:33,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:33,245 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes.
[2025-02-08 05:12:33,267 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements.
[2025-02-08 05:12:33,267 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:33,267 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:33,267 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-02-08 05:12:33,271 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes.
[2025-02-08 05:12:33,289 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements.
[2025-02-08 05:12:33,291 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:33,291 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-02-08 05:12:33,310 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-02-08 05:12:33,311 INFO  L340         BasicCegarLoop]: Counterexample is feasible
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining)
[2025-02-08 05:12:33,311 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining)
[2025-02-08 05:12:33,312 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining)
[2025-02-08 05:12:33,313 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining)
[2025-02-08 05:12:33,314 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining)
[2025-02-08 05:12:33,315 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining)
[2025-02-08 05:12:33,316 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining)
[2025-02-08 05:12:33,316 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining)
[2025-02-08 05:12:33,316 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining)
[2025-02-08 05:12:33,316 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining)
[2025-02-08 05:12:33,316 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining)
[2025-02-08 05:12:33,316 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-08 05:12:33,316 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2025-02-08 05:12:33,316 WARN  L246   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2025-02-08 05:12:33,316 INFO  L491   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2025-02-08 05:12:33,382 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2025-02-08 05:12:33,387 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 506 places, 517 transitions, 1062 flow
[2025-02-08 05:12:33,470 INFO  L124   PetriNetUnfolderBase]: 20/551 cut-off events.
[2025-02-08 05:12:33,471 INFO  L125   PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES.
[2025-02-08 05:12:33,479 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 570 conditions, 551 events. 20/551 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1989 event pairs, 0 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 444. Up to 5 conditions per place. 
[2025-02-08 05:12:33,480 INFO  L82        GeneralOperation]: Start removeDead. Operand has 506 places, 517 transitions, 1062 flow
[2025-02-08 05:12:33,486 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 506 places, 517 transitions, 1062 flow
[2025-02-08 05:12:33,487 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 05:12:33,487 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ff35864, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 05:12:33,488 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 76 error locations.
[2025-02-08 05:12:33,494 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2025-02-08 05:12:33,494 INFO  L124   PetriNetUnfolderBase]: 0/113 cut-off events.
[2025-02-08 05:12:33,494 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2025-02-08 05:12:33,494 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:33,494 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:33,494 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 72 more)] ===
[2025-02-08 05:12:33,495 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:33,495 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376464307, now seen corresponding path program 1 times
[2025-02-08 05:12:33,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:33,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536077501]
[2025-02-08 05:12:33,495 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:33,495 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:33,511 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes.
[2025-02-08 05:12:33,516 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements.
[2025-02-08 05:12:33,516 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:33,517 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 05:12:33,532 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 05:12:33,532 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 05:12:33,532 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536077501]
[2025-02-08 05:12:33,532 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536077501] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 05:12:33,532 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 05:12:33,533 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2025-02-08 05:12:33,533 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480365431]
[2025-02-08 05:12:33,533 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 05:12:33,533 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-08 05:12:33,533 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 05:12:33,534 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-08 05:12:33,534 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-08 05:12:33,534 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 448 out of 517
[2025-02-08 05:12:33,535 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 517 transitions, 1062 flow. Second operand  has 2 states, 2 states have (on average 449.0) internal successors, (898), 2 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:33,536 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-02-08 05:12:33,536 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 517
[2025-02-08 05:12:33,536 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-02-08 05:12:37,695 INFO  L124   PetriNetUnfolderBase]: 4148/29055 cut-off events.
[2025-02-08 05:12:37,695 INFO  L125   PetriNetUnfolderBase]: For 3691/3691 co-relation queries the response was YES.
[2025-02-08 05:12:37,913 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 35489 conditions, 29055 events. 4148/29055 cut-off events. For 3691/3691 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 406065 event pairs, 3630 based on Foata normal form. 5402/30986 useless extension candidates. Maximal degree in co-relation 5459. Up to 5185 conditions per place. 
[2025-02-08 05:12:38,089 INFO  L140   encePairwiseOnDemand]: 476/517 looper letters, 24 selfloop transitions, 0 changer transitions 0/457 dead transitions.
[2025-02-08 05:12:38,090 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 457 transitions, 990 flow
[2025-02-08 05:12:38,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-08 05:12:38,090 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2025-02-08 05:12:38,092 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 961 transitions.
[2025-02-08 05:12:38,092 INFO  L514   CegarLoopForPetriNet]: DFA transition density 0.9294003868471954
[2025-02-08 05:12:38,092 INFO  L175             Difference]: Start difference. First operand has 506 places, 517 transitions, 1062 flow. Second operand 2 states and 961 transitions.
[2025-02-08 05:12:38,092 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 457 transitions, 990 flow
[2025-02-08 05:12:38,097 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 457 transitions, 984 flow, removed 3 selfloop flow, removed 0 redundant places.
[2025-02-08 05:12:38,101 INFO  L231             Difference]: Finished difference. Result has 459 places, 457 transitions, 936 flow
[2025-02-08 05:12:38,102 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=517, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=936, PETRI_PLACES=459, PETRI_TRANSITIONS=457}
[2025-02-08 05:12:38,103 INFO  L279   CegarLoopForPetriNet]: 506 programPoint places, -47 predicate places.
[2025-02-08 05:12:38,103 INFO  L471      AbstractCegarLoop]: Abstraction has has 459 places, 457 transitions, 936 flow
[2025-02-08 05:12:38,104 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 449.0) internal successors, (898), 2 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:38,104 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-02-08 05:12:38,104 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 05:12:38,104 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-08 05:12:38,104 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE (and 72 more)] ===
[2025-02-08 05:12:38,105 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 05:12:38,105 INFO  L85        PathProgramCache]: Analyzing trace with hash 1984515165, now seen corresponding path program 1 times
[2025-02-08 05:12:38,105 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 05:12:38,105 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854881560]
[2025-02-08 05:12:38,105 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 05:12:38,106 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 05:12:38,126 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-02-08 05:12:38,139 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-02-08 05:12:38,140 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 05:12:38,140 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 05:12:38,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 05:12:38,666 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 05:12:38,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854881560]
[2025-02-08 05:12:38,667 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854881560] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 05:12:38,667 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 05:12:38,667 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-08 05:12:38,667 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094522004]
[2025-02-08 05:12:38,667 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 05:12:38,667 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-08 05:12:38,668 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 05:12:38,668 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-08 05:12:38,668 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2025-02-08 05:12:39,229 INFO  L469   CegarLoopForPetriNet]: Number of universal loopers: 420 out of 517
[2025-02-08 05:12:39,232 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 457 transitions, 936 flow. Second operand  has 6 states, 6 states have (on average 421.5) internal successors, (2529), 6 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 05:12:39,232 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-02-08 05:12:39,232 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 517
[2025-02-08 05:12:39,232 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand