./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
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/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a4c3d70901fe656547b2ed44d8d2062b7fd2c703be9560a19808faba512b7797
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 22:52:54,136 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 22:52:54,209 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-07 22:52:54,215 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 22:52:54,216 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 22:52:54,235 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 22:52:54,235 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 22:52:54,235 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 22:52:54,236 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 22:52:54,236 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 22:52:54,236 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 22:52:54,236 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 22:52:54,236 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 22:52:54,236 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 22:52:54,236 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 22:52:54,236 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 22:52:54,238 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 22:52:54,238 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 22:52:54,239 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 22:52:54,239 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 22:52:54,239 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 22:52:54,239 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 22:52:54,239 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 22:52:54,240 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 22:52:54,240 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 22:52:54,241 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 22:52:54,241 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 22:52:54,242 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 22:52:54,242 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 22:52:54,242 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 ! call(reach_error())) )


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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4c3d70901fe656547b2ed44d8d2062b7fd2c703be9560a19808faba512b7797
[2025-02-07 22:52:54,570 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 22:52:54,578 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 22:52:54,581 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 22:52:54,582 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 22:52:54,582 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 22:52:54,583 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c
[2025-02-07 22:52:55,896 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb37e970a/45546894e68d4bce9da686b2fe4f6375/FLAG048da83f8
[2025-02-07 22:52:56,324 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 22:52:56,325 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c
[2025-02-07 22:52:56,357 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb37e970a/45546894e68d4bce9da686b2fe4f6375/FLAG048da83f8
[2025-02-07 22:52:56,379 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb37e970a/45546894e68d4bce9da686b2fe4f6375
[2025-02-07 22:52:56,382 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 22:52:56,384 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 22:52:56,386 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 22:52:56,386 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 22:52:56,390 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 22:52:56,391 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:52:56" (1/1) ...
[2025-02-07 22:52:56,393 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3c6702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:56, skipping insertion in model container
[2025-02-07 22:52:56,393 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:52:56" (1/1) ...
[2025-02-07 22:52:56,475 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 22:52:56,676 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c[1176,1189]
[2025-02-07 22:52:57,231 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 22:52:57,239 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 22:52:57,250 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.3.prop2-func-interl.c[1176,1189]
[2025-02-07 22:52:57,612 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 22:52:57,625 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 22:52:57,626 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57 WrapperNode
[2025-02-07 22:52:57,627 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 22:52:57,628 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 22:52:57,628 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 22:52:57,628 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 22:52:57,634 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:57,758 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:59,023 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13482
[2025-02-07 22:52:59,024 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 22:52:59,025 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 22:52:59,025 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 22:52:59,025 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 22:52:59,033 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:59,034 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:59,576 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:59,793 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-02-07 22:52:59,794 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:52:59,794 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,194 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,238 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,299 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,361 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,536 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 22:53:00,537 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 22:53:00,537 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 22:53:00,537 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 22:53:00,538 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (1/1) ...
[2025-02-07 22:53:00,542 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 22:53:00,557 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 22:53:00,569 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)
[2025-02-07 22:53:00,571 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
[2025-02-07 22:53:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 22:53:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 22:53:00,592 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 22:53:00,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 22:53:01,327 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 22:53:01,329 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 22:53:23,891 INFO  L?                        ?]: Removed 7637 outVars from TransFormulas that were not future-live.
[2025-02-07 22:53:23,891 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 22:53:24,304 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 22:53:24,304 INFO  L337             CfgBuilder]: Removed 4 assume(true) statements.
[2025-02-07 22:53:24,305 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:53:24 BoogieIcfgContainer
[2025-02-07 22:53:24,305 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 22:53:24,307 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 22:53:24,308 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 22:53:24,311 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 22:53:24,312 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 10:52:56" (1/3) ...
[2025-02-07 22:53:24,313 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316111a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:53:24, skipping insertion in model container
[2025-02-07 22:53:24,315 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:52:57" (2/3) ...
[2025-02-07 22:53:24,315 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316111a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:53:24, skipping insertion in model container
[2025-02-07 22:53:24,315 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:53:24" (3/3) ...
[2025-02-07 22:53:24,316 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.3.prop2-func-interl.c
[2025-02-07 22:53:24,337 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 22:53:24,339 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cambridge.3.prop2-func-interl.c that has 1 procedures, 4636 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-07 22:53:24,481 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 22:53:24,494 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;@633ba38e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 22:53:24,494 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 22:53:24,510 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4636 states, 4634 states have (on average 1.5021579628830384) internal successors, (6961), 4635 states have internal predecessors, (6961), 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)
[2025-02-07 22:53:24,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 187
[2025-02-07 22:53:24,529 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:24,529 INFO  L218           NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 22:53:24,530 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:24,536 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:24,537 INFO  L85        PathProgramCache]: Analyzing trace with hash 1464801714, now seen corresponding path program 1 times
[2025-02-07 22:53:24,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:24,546 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788332377]
[2025-02-07 22:53:24,546 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:24,547 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:24,712 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes.
[2025-02-07 22:53:24,865 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements.
[2025-02-07 22:53:24,871 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:53:24,871 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 22:53:25,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 22:53:25,835 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 22:53:25,835 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788332377]
[2025-02-07 22:53:25,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788332377] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 22:53:25,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 22:53:25,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 22:53:25,838 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14609546]
[2025-02-07 22:53:25,839 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 22:53:25,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 22:53:25,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 22:53:25,864 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 22:53:25,865 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 22:53:25,878 INFO  L87              Difference]: Start difference. First operand  has 4636 states, 4634 states have (on average 1.5021579628830384) internal successors, (6961), 4635 states have internal predecessors, (6961), 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) Second operand  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2025-02-07 22:53:28,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 22:53:28,564 INFO  L93              Difference]: Finished difference Result 9103 states and 13671 transitions.
[2025-02-07 22:53:28,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 22:53:28,568 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) Word has length 186
[2025-02-07 22:53:28,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 22:53:28,610 INFO  L225             Difference]: With dead ends: 9103
[2025-02-07 22:53:28,610 INFO  L226             Difference]: Without dead ends: 4636
[2025-02-07 22:53:28,621 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 22:53:28,625 INFO  L435           NwaCegarLoop]: 5802 mSDtfsCounter, 0 mSDsluCounter, 11599 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17401 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-02-07 22:53:28,626 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17401 Invalid, 3472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-02-07 22:53:28,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4636 states.
[2025-02-07 22:53:28,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4636 to 4636.
[2025-02-07 22:53:28,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4636 states, 4635 states have (on average 1.5016181229773462) internal successors, (6960), 4635 states have internal predecessors, (6960), 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)
[2025-02-07 22:53:28,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6960 transitions.
[2025-02-07 22:53:28,832 INFO  L78                 Accepts]: Start accepts. Automaton has 4636 states and 6960 transitions. Word has length 186
[2025-02-07 22:53:28,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 22:53:28,835 INFO  L471      AbstractCegarLoop]: Abstraction has 4636 states and 6960 transitions.
[2025-02-07 22:53:28,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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)
[2025-02-07 22:53:28,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 4636 states and 6960 transitions.
[2025-02-07 22:53:28,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 188
[2025-02-07 22:53:28,838 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:28,838 INFO  L218           NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 22:53:28,838 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-07 22:53:28,838 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:28,843 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:28,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -1831100510, now seen corresponding path program 1 times
[2025-02-07 22:53:28,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:28,844 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713932847]
[2025-02-07 22:53:28,844 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:28,844 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:28,917 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes.
[2025-02-07 22:53:28,959 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements.
[2025-02-07 22:53:28,959 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:53:28,959 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 22:53:29,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 22:53:29,273 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 22:53:29,273 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713932847]
[2025-02-07 22:53:29,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713932847] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 22:53:29,273 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 22:53:29,273 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 22:53:29,273 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641149268]
[2025-02-07 22:53:29,274 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 22:53:29,275 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 22:53:29,276 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 22:53:29,276 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 22:53:29,277 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 22:53:29,278 INFO  L87              Difference]: Start difference. First operand 4636 states and 6960 transitions. Second operand  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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)
[2025-02-07 22:53:31,633 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 22:53:31,633 INFO  L93              Difference]: Finished difference Result 9105 states and 13670 transitions.
[2025-02-07 22:53:31,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 22:53:31,634 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) Word has length 187
[2025-02-07 22:53:31,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 22:53:31,655 INFO  L225             Difference]: With dead ends: 9105
[2025-02-07 22:53:31,656 INFO  L226             Difference]: Without dead ends: 4638
[2025-02-07 22:53:31,663 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 22:53:31,664 INFO  L435           NwaCegarLoop]: 5802 mSDtfsCounter, 0 mSDsluCounter, 11596 mSDsCounter, 0 mSdLazyCounter, 3475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17398 SdHoareTripleChecker+Invalid, 3475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-02-07 22:53:31,665 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17398 Invalid, 3475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3475 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-02-07 22:53:31,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4638 states.
[2025-02-07 22:53:31,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4638.
[2025-02-07 22:53:31,758 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4638 states, 4637 states have (on average 1.5014017683847316) internal successors, (6962), 4637 states have internal predecessors, (6962), 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)
[2025-02-07 22:53:31,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 6962 transitions.
[2025-02-07 22:53:31,772 INFO  L78                 Accepts]: Start accepts. Automaton has 4638 states and 6962 transitions. Word has length 187
[2025-02-07 22:53:31,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 22:53:31,774 INFO  L471      AbstractCegarLoop]: Abstraction has 4638 states and 6962 transitions.
[2025-02-07 22:53:31,774 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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)
[2025-02-07 22:53:31,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 4638 states and 6962 transitions.
[2025-02-07 22:53:31,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2025-02-07 22:53:31,777 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:31,778 INFO  L218           NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 22:53:31,778 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-07 22:53:31,778 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:31,778 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:31,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 1001975725, now seen corresponding path program 1 times
[2025-02-07 22:53:31,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:31,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941798328]
[2025-02-07 22:53:31,779 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:31,779 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:31,844 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes.
[2025-02-07 22:53:31,888 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements.
[2025-02-07 22:53:31,891 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:53:31,892 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 22:53:32,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 22:53:32,483 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 22:53:32,484 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941798328]
[2025-02-07 22:53:32,484 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941798328] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 22:53:32,484 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 22:53:32,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-07 22:53:32,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226166280]
[2025-02-07 22:53:32,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 22:53:32,485 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-07 22:53:32,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 22:53:32,485 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-07 22:53:32,485 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-02-07 22:53:32,485 INFO  L87              Difference]: Start difference. First operand 4638 states and 6962 transitions. Second operand  has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 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)
[2025-02-07 22:53:35,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 22:53:35,897 INFO  L93              Difference]: Finished difference Result 13238 states and 19875 transitions.
[2025-02-07 22:53:35,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-07 22:53:35,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 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) Word has length 188
[2025-02-07 22:53:35,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 22:53:35,932 INFO  L225             Difference]: With dead ends: 13238
[2025-02-07 22:53:35,932 INFO  L226             Difference]: Without dead ends: 8769
[2025-02-07 22:53:35,941 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-02-07 22:53:35,942 INFO  L435           NwaCegarLoop]: 5798 mSDtfsCounter, 6282 mSDsluCounter, 17178 mSDsCounter, 0 mSdLazyCounter, 4603 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6282 SdHoareTripleChecker+Valid, 22976 SdHoareTripleChecker+Invalid, 4603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2025-02-07 22:53:35,943 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6282 Valid, 22976 Invalid, 4603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4603 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2025-02-07 22:53:35,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8769 states.
[2025-02-07 22:53:36,056 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 4828.
[2025-02-07 22:53:36,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4828 states, 4827 states have (on average 1.5011394240729232) internal successors, (7246), 4827 states have internal predecessors, (7246), 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)
[2025-02-07 22:53:36,074 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 7246 transitions.
[2025-02-07 22:53:36,074 INFO  L78                 Accepts]: Start accepts. Automaton has 4828 states and 7246 transitions. Word has length 188
[2025-02-07 22:53:36,074 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 22:53:36,074 INFO  L471      AbstractCegarLoop]: Abstraction has 4828 states and 7246 transitions.
[2025-02-07 22:53:36,075 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 37.6) internal successors, (188), 4 states have internal predecessors, (188), 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)
[2025-02-07 22:53:36,075 INFO  L276                IsEmpty]: Start isEmpty. Operand 4828 states and 7246 transitions.
[2025-02-07 22:53:36,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2386
[2025-02-07 22:53:36,202 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:36,203 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 22:53:36,204 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-07 22:53:36,204 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:36,205 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:36,206 INFO  L85        PathProgramCache]: Analyzing trace with hash 280259272, now seen corresponding path program 1 times
[2025-02-07 22:53:36,206 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:36,206 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751939644]
[2025-02-07 22:53:36,208 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:36,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:36,602 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2385 statements into 1 equivalence classes.
[2025-02-07 22:53:41,002 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2385 of 2385 statements.
[2025-02-07 22:53:41,002 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:53:41,002 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 22:53:45,977 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 22:53:45,978 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 22:53:45,978 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751939644]
[2025-02-07 22:53:45,978 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751939644] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 22:53:45,978 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 22:53:45,979 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-07 22:53:45,979 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770713841]
[2025-02-07 22:53:45,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 22:53:45,982 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-07 22:53:45,983 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 22:53:45,986 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-07 22:53:45,986 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-07 22:53:45,988 INFO  L87              Difference]: Start difference. First operand 4828 states and 7246 transitions. Second operand  has 4 states, 4 states have (on average 596.25) internal successors, (2385), 3 states have internal predecessors, (2385), 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)
[2025-02-07 22:53:47,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 22:53:47,814 INFO  L93              Difference]: Finished difference Result 9297 states and 13955 transitions.
[2025-02-07 22:53:47,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-07 22:53:47,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 596.25) internal successors, (2385), 3 states have internal predecessors, (2385), 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) Word has length 2385
[2025-02-07 22:53:47,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 22:53:47,829 INFO  L225             Difference]: With dead ends: 9297
[2025-02-07 22:53:47,830 INFO  L226             Difference]: Without dead ends: 4828
[2025-02-07 22:53:47,836 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-02-07 22:53:47,836 INFO  L435           NwaCegarLoop]: 5797 mSDtfsCounter, 6775 mSDsluCounter, 5794 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6775 SdHoareTripleChecker+Valid, 11591 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-02-07 22:53:47,837 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6775 Valid, 11591 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-02-07 22:53:47,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4828 states.
[2025-02-07 22:53:47,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 4828.
[2025-02-07 22:53:47,914 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4828 states, 4827 states have (on average 1.5009322560596643) internal successors, (7245), 4827 states have internal predecessors, (7245), 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)
[2025-02-07 22:53:47,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 7245 transitions.
[2025-02-07 22:53:47,928 INFO  L78                 Accepts]: Start accepts. Automaton has 4828 states and 7245 transitions. Word has length 2385
[2025-02-07 22:53:47,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 22:53:47,930 INFO  L471      AbstractCegarLoop]: Abstraction has 4828 states and 7245 transitions.
[2025-02-07 22:53:47,931 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 596.25) internal successors, (2385), 3 states have internal predecessors, (2385), 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)
[2025-02-07 22:53:47,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 4828 states and 7245 transitions.
[2025-02-07 22:53:48,036 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2387
[2025-02-07 22:53:48,037 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:48,038 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-07 22:53:48,039 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-07 22:53:48,039 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:48,040 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:48,042 INFO  L85        PathProgramCache]: Analyzing trace with hash -1893510214, now seen corresponding path program 1 times
[2025-02-07 22:53:48,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:48,042 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825144818]
[2025-02-07 22:53:48,042 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:48,043 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:48,483 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2386 statements into 1 equivalence classes.
[2025-02-07 22:53:51,682 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2386 of 2386 statements.
[2025-02-07 22:53:51,682 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:53:51,682 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 22:53:57,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-07 22:53:57,304 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 22:53:57,304 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825144818]
[2025-02-07 22:53:57,304 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825144818] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 22:53:57,305 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-07 22:53:57,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-07 22:53:57,305 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292823115]
[2025-02-07 22:53:57,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 22:53:57,307 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-07 22:53:57,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 22:53:57,309 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-07 22:53:57,309 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-07 22:53:57,309 INFO  L87              Difference]: Start difference. First operand 4828 states and 7245 transitions. Second operand  has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 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)
[2025-02-07 22:53:58,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 22:53:58,704 INFO  L93              Difference]: Finished difference Result 9298 states and 13955 transitions.
[2025-02-07 22:53:58,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-07 22:53:58,705 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 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) Word has length 2386
[2025-02-07 22:53:58,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 22:53:58,718 INFO  L225             Difference]: With dead ends: 9298
[2025-02-07 22:53:58,718 INFO  L226             Difference]: Without dead ends: 4829
[2025-02-07 22:53:58,722 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-07 22:53:58,723 INFO  L435           NwaCegarLoop]: 5802 mSDtfsCounter, 0 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11599 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-07 22:53:58,723 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11599 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-07 22:53:58,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4829 states.
[2025-02-07 22:53:58,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4829.
[2025-02-07 22:53:58,786 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4829 states, 4828 states have (on average 1.5008285004142503) internal successors, (7246), 4828 states have internal predecessors, (7246), 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)
[2025-02-07 22:53:58,792 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 7246 transitions.
[2025-02-07 22:53:58,793 INFO  L78                 Accepts]: Start accepts. Automaton has 4829 states and 7246 transitions. Word has length 2386
[2025-02-07 22:53:58,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 22:53:58,794 INFO  L471      AbstractCegarLoop]: Abstraction has 4829 states and 7246 transitions.
[2025-02-07 22:53:58,795 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 795.3333333333334) internal successors, (2386), 3 states have internal predecessors, (2386), 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)
[2025-02-07 22:53:58,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 4829 states and 7246 transitions.
[2025-02-07 22:53:58,830 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2387
[2025-02-07 22:53:58,831 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 22:53:58,832 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-02-07 22:53:58,832 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-07 22:53:58,833 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 22:53:58,834 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 22:53:58,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 483748089, now seen corresponding path program 1 times
[2025-02-07 22:53:58,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 22:53:58,835 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721137643]
[2025-02-07 22:53:58,836 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 22:53:58,836 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 22:53:59,199 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2386 statements into 1 equivalence classes.
[2025-02-07 22:54:00,687 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2386 of 2386 statements.
[2025-02-07 22:54:00,688 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 22:54:00,688 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat