./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version a046e57d
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 31f75e3a6c15bdab3d9f6821e95816cb19b70e3f3431428fbee7732730ce7148
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m
[2024-10-12 22:35:34,476 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-12 22:35:34,536 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-12 22:35:34,539 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-12 22:35:34,539 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-12 22:35:34,563 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-12 22:35:34,565 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-12 22:35:34,565 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-12 22:35:34,565 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-12 22:35:34,566 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-12 22:35:34,566 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-12 22:35:34,567 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-12 22:35:34,567 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-12 22:35:34,569 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-12 22:35:34,569 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-12 22:35:34,569 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-12 22:35:34,569 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-12 22:35:34,570 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-12 22:35:34,570 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-12 22:35:34,570 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-12 22:35:34,570 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-12 22:35:34,573 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-12 22:35:34,573 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-12 22:35:34,574 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-12 22:35:34,574 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-12 22:35:34,574 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-12 22:35:34,574 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-12 22:35:34,574 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-12 22:35:34,574 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-12 22:35:34,575 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:35:34,575 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-12 22:35:34,575 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-12 22:35:34,575 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-12 22:35:34,575 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-12 22:35:34,575 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-12 22:35:34,576 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-12 22:35:34,576 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-12 22:35:34,576 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-12 22:35:34,576 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-12 22:35:34,576 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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/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 -> 31f75e3a6c15bdab3d9f6821e95816cb19b70e3f3431428fbee7732730ce7148
[2024-10-12 22:35:34,762 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-12 22:35:34,780 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-12 22:35:34,786 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-12 22:35:34,787 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-12 22:35:34,789 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-12 22:35:34,789 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2024-10-12 22:35:36,081 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-12 22:35:36,426 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-12 22:35:36,427 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2024-10-12 22:35:36,467 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ecb020e/22d69a9bc03f464abc17e9d6f7bde598/FLAG5b069de0c
[2024-10-12 22:35:36,656 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ecb020e/22d69a9bc03f464abc17e9d6f7bde598
[2024-10-12 22:35:36,658 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-12 22:35:36,659 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-12 22:35:36,660 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-12 22:35:36,660 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-12 22:35:36,665 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-12 22:35:36,665 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:35:36" (1/1) ...
[2024-10-12 22:35:36,666 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2085d509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:36, skipping insertion in model container
[2024-10-12 22:35:36,666 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:35:36" (1/1) ...
[2024-10-12 22:35:36,783 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-12 22:35:37,032 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c[1176,1189]
[2024-10-12 22:35:37,752 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:35:37,768 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-12 22:35:37,786 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop2-func-interl.c[1176,1189]
[2024-10-12 22:35:38,164 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-12 22:35:38,177 INFO  L204         MainTranslator]: Completed translation
[2024-10-12 22:35:38,178 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38 WrapperNode
[2024-10-12 22:35:38,178 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-12 22:35:38,179 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-12 22:35:38,179 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-12 22:35:38,179 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-12 22:35:38,185 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:38,415 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:40,545 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20138
[2024-10-12 22:35:40,546 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-12 22:35:40,547 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-12 22:35:40,547 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-12 22:35:40,547 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-12 22:35:40,555 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:40,555 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:41,132 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:41,470 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].
[2024-10-12 22:35:41,473 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:41,473 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,374 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,437 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,540 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,611 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,876 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-12 22:35:42,877 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-12 22:35:42,877 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-12 22:35:42,877 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-12 22:35:42,877 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (1/1) ...
[2024-10-12 22:35:42,882 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-12 22:35:42,890 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-12 22:35:42,908 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-12 22:35:42,918 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-12 22:35:42,954 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-12 22:35:42,954 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-12 22:35:42,954 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-12 22:35:42,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-12 22:35:43,969 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-12 22:35:43,972 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-12 22:36:16,027 INFO  L?                        ?]: Removed 11885 outVars from TransFormulas that were not future-live.
[2024-10-12 22:36:16,027 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-12 22:36:16,311 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-12 22:36:16,311 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-12 22:36:16,312 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:16 BoogieIcfgContainer
[2024-10-12 22:36:16,312 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-12 22:36:16,313 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-12 22:36:16,313 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-12 22:36:16,316 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-12 22:36:16,316 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:35:36" (1/3) ...
[2024-10-12 22:36:16,317 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ff68fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:16, skipping insertion in model container
[2024-10-12 22:36:16,317 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:35:38" (2/3) ...
[2024-10-12 22:36:16,317 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ff68fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:36:16, skipping insertion in model container
[2024-10-12 22:36:16,318 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:36:16" (3/3) ...
[2024-10-12 22:36:16,319 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.6.prop2-func-interl.c
[2024-10-12 22:36:16,332 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-12 22:36:16,332 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-12 22:36:16,436 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-12 22:36:16,441 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;@4681810a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-12 22:36:16,442 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-12 22:36:16,456 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6483 states, 6481 states have (on average 1.5016201203517976) internal successors, (9732), 6482 states have internal predecessors, (9732), 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)
[2024-10-12 22:36:16,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 231
[2024-10-12 22:36:16,472 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:16,473 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:36:16,473 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:16,477 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:16,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -941893879, now seen corresponding path program 1 times
[2024-10-12 22:36:16,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:16,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542937567]
[2024-10-12 22:36:16,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:16,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:16,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:17,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:17,503 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:17,503 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542937567]
[2024-10-12 22:36:17,504 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542937567] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:17,504 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:17,504 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:17,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591049055]
[2024-10-12 22:36:17,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:17,510 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:17,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:17,528 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:17,529 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:17,541 INFO  L87              Difference]: Start difference. First operand  has 6483 states, 6481 states have (on average 1.5016201203517976) internal successors, (9732), 6482 states have internal predecessors, (9732), 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 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2024-10-12 22:36:17,920 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:17,923 INFO  L93              Difference]: Finished difference Result 12710 states and 19082 transitions.
[2024-10-12 22:36:17,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:17,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 230
[2024-10-12 22:36:17,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:17,997 INFO  L225             Difference]: With dead ends: 12710
[2024-10-12 22:36:17,997 INFO  L226             Difference]: Without dead ends: 6484
[2024-10-12 22:36:18,020 INFO  L431           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
[2024-10-12 22:36:18,027 INFO  L432           NwaCegarLoop]: 9727 mSDtfsCounter, 0 mSDsluCounter, 19449 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29176 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:18,029 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29176 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:18,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6484 states.
[2024-10-12 22:36:18,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 6484.
[2024-10-12 22:36:18,199 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6484 states, 6483 states have (on average 1.5011568718186026) internal successors, (9732), 6483 states have internal predecessors, (9732), 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)
[2024-10-12 22:36:18,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6484 states to 6484 states and 9732 transitions.
[2024-10-12 22:36:18,215 INFO  L78                 Accepts]: Start accepts. Automaton has 6484 states and 9732 transitions. Word has length 230
[2024-10-12 22:36:18,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:18,216 INFO  L471      AbstractCegarLoop]: Abstraction has 6484 states and 9732 transitions.
[2024-10-12 22:36:18,216 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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)
[2024-10-12 22:36:18,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 6484 states and 9732 transitions.
[2024-10-12 22:36:18,219 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 232
[2024-10-12 22:36:18,219 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:18,219 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:36:18,220 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-12 22:36:18,220 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:18,220 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:18,220 INFO  L85        PathProgramCache]: Analyzing trace with hash 867757445, now seen corresponding path program 1 times
[2024-10-12 22:36:18,221 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:18,221 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30422730]
[2024-10-12 22:36:18,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:18,221 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:18,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:18,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:18,682 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:18,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30422730]
[2024-10-12 22:36:18,682 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30422730] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:18,682 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:18,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:18,683 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509136430]
[2024-10-12 22:36:18,683 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:18,684 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:18,686 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:18,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:18,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:18,687 INFO  L87              Difference]: Start difference. First operand 6484 states and 9732 transitions. Second operand  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2024-10-12 22:36:18,830 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:18,830 INFO  L93              Difference]: Finished difference Result 12713 states and 19082 transitions.
[2024-10-12 22:36:18,831 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:18,831 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231
[2024-10-12 22:36:18,832 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:18,847 INFO  L225             Difference]: With dead ends: 12713
[2024-10-12 22:36:18,847 INFO  L226             Difference]: Without dead ends: 6486
[2024-10-12 22:36:18,855 INFO  L431           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
[2024-10-12 22:36:18,856 INFO  L432           NwaCegarLoop]: 9727 mSDtfsCounter, 0 mSDsluCounter, 19446 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29173 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:18,856 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29173 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:18,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6486 states.
[2024-10-12 22:36:18,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 6486.
[2024-10-12 22:36:18,932 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6486 states, 6485 states have (on average 1.5010023130300694) internal successors, (9734), 6485 states have internal predecessors, (9734), 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)
[2024-10-12 22:36:18,945 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9734 transitions.
[2024-10-12 22:36:18,946 INFO  L78                 Accepts]: Start accepts. Automaton has 6486 states and 9734 transitions. Word has length 231
[2024-10-12 22:36:18,947 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:18,947 INFO  L471      AbstractCegarLoop]: Abstraction has 6486 states and 9734 transitions.
[2024-10-12 22:36:18,947 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2024-10-12 22:36:18,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 6486 states and 9734 transitions.
[2024-10-12 22:36:18,949 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 233
[2024-10-12 22:36:18,949 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:18,949 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:36:18,949 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-12 22:36:18,949 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:18,949 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:18,950 INFO  L85        PathProgramCache]: Analyzing trace with hash 32712546, now seen corresponding path program 1 times
[2024-10-12 22:36:18,950 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:18,950 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846909442]
[2024-10-12 22:36:18,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:18,950 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:19,048 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:19,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:19,270 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:19,270 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846909442]
[2024-10-12 22:36:19,270 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846909442] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:19,270 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:19,270 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:19,270 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866817729]
[2024-10-12 22:36:19,270 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:19,271 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:19,272 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:19,272 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:19,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:19,272 INFO  L87              Difference]: Start difference. First operand 6486 states and 9734 transitions. Second operand  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2024-10-12 22:36:19,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:19,404 INFO  L93              Difference]: Finished difference Result 12717 states and 19086 transitions.
[2024-10-12 22:36:19,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:19,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232
[2024-10-12 22:36:19,408 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:19,423 INFO  L225             Difference]: With dead ends: 12717
[2024-10-12 22:36:19,424 INFO  L226             Difference]: Without dead ends: 6488
[2024-10-12 22:36:19,429 INFO  L431           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
[2024-10-12 22:36:19,430 INFO  L432           NwaCegarLoop]: 9727 mSDtfsCounter, 0 mSDsluCounter, 19440 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29167 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:19,432 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29167 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:19,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6488 states.
[2024-10-12 22:36:19,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 6488.
[2024-10-12 22:36:19,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6488 states, 6487 states have (on average 1.5008478495452444) internal successors, (9736), 6487 states have internal predecessors, (9736), 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)
[2024-10-12 22:36:19,515 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 9736 transitions.
[2024-10-12 22:36:19,516 INFO  L78                 Accepts]: Start accepts. Automaton has 6488 states and 9736 transitions. Word has length 232
[2024-10-12 22:36:19,517 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:19,517 INFO  L471      AbstractCegarLoop]: Abstraction has 6488 states and 9736 transitions.
[2024-10-12 22:36:19,518 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2024-10-12 22:36:19,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 6488 states and 9736 transitions.
[2024-10-12 22:36:19,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2024-10-12 22:36:19,519 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:19,524 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-12 22:36:19,524 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-12 22:36:19,524 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:19,524 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:19,525 INFO  L85        PathProgramCache]: Analyzing trace with hash 1922977196, now seen corresponding path program 1 times
[2024-10-12 22:36:19,525 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:19,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631401377]
[2024-10-12 22:36:19,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:19,525 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:19,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:19,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:19,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:19,905 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631401377]
[2024-10-12 22:36:19,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631401377] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:19,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:19,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-12 22:36:19,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300904855]
[2024-10-12 22:36:19,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:19,906 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-12 22:36:19,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:19,907 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-12 22:36:19,907 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-12 22:36:19,907 INFO  L87              Difference]: Start difference. First operand 6488 states and 9736 transitions. Second operand  has 5 states, 5 states have (on average 46.6) internal successors, (233), 4 states have internal predecessors, (233), 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)
[2024-10-12 22:36:20,356 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:20,356 INFO  L93              Difference]: Finished difference Result 18612 states and 27933 transitions.
[2024-10-12 22:36:20,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-12 22:36:20,357 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 46.6) internal successors, (233), 4 states have internal predecessors, (233), 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 233
[2024-10-12 22:36:20,357 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:20,382 INFO  L225             Difference]: With dead ends: 18612
[2024-10-12 22:36:20,382 INFO  L226             Difference]: Without dead ends: 12381
[2024-10-12 22:36:20,390 INFO  L431           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
[2024-10-12 22:36:20,391 INFO  L432           NwaCegarLoop]: 9723 mSDtfsCounter, 9009 mSDsluCounter, 28781 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9009 SdHoareTripleChecker+Valid, 38504 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:20,391 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9009 Valid, 38504 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-10-12 22:36:20,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12381 states.
[2024-10-12 22:36:20,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12381 to 6676.
[2024-10-12 22:36:20,487 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6676 states, 6675 states have (on average 1.5008239700374533) internal successors, (10018), 6675 states have internal predecessors, (10018), 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)
[2024-10-12 22:36:20,495 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 10018 transitions.
[2024-10-12 22:36:20,495 INFO  L78                 Accepts]: Start accepts. Automaton has 6676 states and 10018 transitions. Word has length 233
[2024-10-12 22:36:20,496 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:20,496 INFO  L471      AbstractCegarLoop]: Abstraction has 6676 states and 10018 transitions.
[2024-10-12 22:36:20,496 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 46.6) internal successors, (233), 4 states have internal predecessors, (233), 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)
[2024-10-12 22:36:20,496 INFO  L276                IsEmpty]: Start isEmpty. Operand 6676 states and 10018 transitions.
[2024-10-12 22:36:20,631 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3311
[2024-10-12 22:36:20,631 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:20,633 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-10-12 22:36:20,633 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-12 22:36:20,633 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:20,634 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:20,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 1714749791, now seen corresponding path program 1 times
[2024-10-12 22:36:20,635 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:20,635 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093044601]
[2024-10-12 22:36:20,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:20,635 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:26,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:31,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:31,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:31,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093044601]
[2024-10-12 22:36:31,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093044601] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:31,992 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:31,993 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:36:31,993 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264275497]
[2024-10-12 22:36:31,993 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:31,995 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:31,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:31,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:31,998 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:31,999 INFO  L87              Difference]: Start difference. First operand 6676 states and 10018 transitions. Second operand  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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)
[2024-10-12 22:36:32,110 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:32,110 INFO  L93              Difference]: Finished difference Result 12907 states and 19369 transitions.
[2024-10-12 22:36:32,111 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:32,112 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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 3310
[2024-10-12 22:36:32,113 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:32,124 INFO  L225             Difference]: With dead ends: 12907
[2024-10-12 22:36:32,124 INFO  L226             Difference]: Without dead ends: 6676
[2024-10-12 22:36:32,130 INFO  L431           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
[2024-10-12 22:36:32,131 INFO  L432           NwaCegarLoop]: 9721 mSDtfsCounter, 9503 mSDsluCounter, 9719 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 19440 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:32,132 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9503 Valid, 19440 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:32,139 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6676 states.
[2024-10-12 22:36:32,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6676.
[2024-10-12 22:36:32,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6676 states, 6675 states have (on average 1.5006741573033708) internal successors, (10017), 6675 states have internal predecessors, (10017), 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)
[2024-10-12 22:36:32,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 10017 transitions.
[2024-10-12 22:36:32,203 INFO  L78                 Accepts]: Start accepts. Automaton has 6676 states and 10017 transitions. Word has length 3310
[2024-10-12 22:36:32,204 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:32,204 INFO  L471      AbstractCegarLoop]: Abstraction has 6676 states and 10017 transitions.
[2024-10-12 22:36:32,205 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 827.5) internal successors, (3310), 3 states have internal predecessors, (3310), 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)
[2024-10-12 22:36:32,205 INFO  L276                IsEmpty]: Start isEmpty. Operand 6676 states and 10017 transitions.
[2024-10-12 22:36:32,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3312
[2024-10-12 22:36:32,565 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:32,566 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-10-12 22:36:32,567 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-12 22:36:32,568 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:32,568 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:32,569 INFO  L85        PathProgramCache]: Analyzing trace with hash 103288154, now seen corresponding path program 1 times
[2024-10-12 22:36:32,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:32,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295320484]
[2024-10-12 22:36:32,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:32,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:36,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:40,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:40,614 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:40,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295320484]
[2024-10-12 22:36:40,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295320484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:40,618 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:40,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:36:40,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161210955]
[2024-10-12 22:36:40,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:40,621 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:40,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:40,623 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:40,627 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:40,628 INFO  L87              Difference]: Start difference. First operand 6676 states and 10017 transitions. Second operand  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 3 states have internal predecessors, (3311), 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)
[2024-10-12 22:36:41,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-12 22:36:41,099 INFO  L93              Difference]: Finished difference Result 12907 states and 19367 transitions.
[2024-10-12 22:36:41,099 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-12 22:36:41,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 3 states have internal predecessors, (3311), 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 3311
[2024-10-12 22:36:41,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-12 22:36:41,107 INFO  L225             Difference]: With dead ends: 12907
[2024-10-12 22:36:41,107 INFO  L226             Difference]: Without dead ends: 6676
[2024-10-12 22:36:41,111 INFO  L431           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
[2024-10-12 22:36:41,111 INFO  L432           NwaCegarLoop]: 9720 mSDtfsCounter, 9473 mSDsluCounter, 9718 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9473 SdHoareTripleChecker+Valid, 19438 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-12 22:36:41,112 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9473 Valid, 19438 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-12 22:36:41,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6676 states.
[2024-10-12 22:36:41,162 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6676 to 6676.
[2024-10-12 22:36:41,168 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6676 states, 6675 states have (on average 1.5005243445692884) internal successors, (10016), 6675 states have internal predecessors, (10016), 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)
[2024-10-12 22:36:41,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 10016 transitions.
[2024-10-12 22:36:41,176 INFO  L78                 Accepts]: Start accepts. Automaton has 6676 states and 10016 transitions. Word has length 3311
[2024-10-12 22:36:41,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-12 22:36:41,176 INFO  L471      AbstractCegarLoop]: Abstraction has 6676 states and 10016 transitions.
[2024-10-12 22:36:41,177 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 3 states have internal predecessors, (3311), 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)
[2024-10-12 22:36:41,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 6676 states and 10016 transitions.
[2024-10-12 22:36:41,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3313
[2024-10-12 22:36:41,224 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-12 22:36:41,225 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-10-12 22:36:41,225 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-12 22:36:41,226 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-12 22:36:41,226 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-12 22:36:41,227 INFO  L85        PathProgramCache]: Analyzing trace with hash -1702493696, now seen corresponding path program 1 times
[2024-10-12 22:36:41,227 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-12 22:36:41,227 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408303347]
[2024-10-12 22:36:41,228 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-12 22:36:41,228 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-12 22:36:46,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-12 22:36:54,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-12 22:36:54,859 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-12 22:36:54,859 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408303347]
[2024-10-12 22:36:54,860 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408303347] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-12 22:36:54,860 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-12 22:36:54,860 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-12 22:36:54,860 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106225861]
[2024-10-12 22:36:54,860 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-12 22:36:54,863 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-12 22:36:54,863 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-12 22:36:54,869 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-12 22:36:54,869 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-12 22:36:54,870 INFO  L87              Difference]: Start difference. First operand 6676 states and 10016 transitions. Second operand  has 4 states, 4 states have (on average 828.0) internal successors, (3312), 3 states have internal predecessors, (3312), 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)