./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-2.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 84cfde4a
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-2.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 32bit --witnessprinter.graph.data.programhash 80bce81184682208d15520c2d0ae5d9c5f1236c4de557bfddd91c6f88a04aad8
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-84cfde4
[2024-10-10 22:30:00,577 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-10 22:30:00,655 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-10 22:30:00,659 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-10 22:30:00,660 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-10 22:30:00,686 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-10 22:30:00,687 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-10 22:30:00,687 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-10 22:30:00,687 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-10 22:30:00,688 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-10 22:30:00,688 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-10 22:30:00,689 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-10 22:30:00,689 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-10 22:30:00,690 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-10 22:30:00,690 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-10 22:30:00,690 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-10 22:30:00,691 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-10 22:30:00,693 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-10 22:30:00,693 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-10 22:30:00,694 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-10 22:30:00,694 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-10 22:30:00,695 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-10 22:30:00,695 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-10 22:30:00,695 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-10 22:30:00,696 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-10 22:30:00,696 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-10 22:30:00,696 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-10 22:30:00,696 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-10 22:30:00,697 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-10 22:30:00,697 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-10 22:30:00,697 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-10 22:30:00,698 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-10 22:30:00,698 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 22:30:00,702 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-10 22:30:00,702 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-10 22:30:00,702 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-10 22:30:00,703 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-10 22:30:00,703 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-10 22:30:00,704 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-10 22:30:00,704 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-10 22:30:00,704 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-10 22:30:00,705 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-10 22:30:00,705 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-clean/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-clean/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80bce81184682208d15520c2d0ae5d9c5f1236c4de557bfddd91c6f88a04aad8
[2024-10-10 22:30:00,970 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-10 22:30:00,995 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-10 22:30:00,999 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-10 22:30:01,000 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-10 22:30:01,001 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-10 22:30:01,002 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-2.c
[2024-10-10 22:30:02,509 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-10 22:30:02,686 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-10 22:30:02,687 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/sum02-2.c
[2024-10-10 22:30:02,693 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b36eb96d/432411f8842841e183c7ed73728f1554/FLAG8fbbdac0f
[2024-10-10 22:30:03,082 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b36eb96d/432411f8842841e183c7ed73728f1554
[2024-10-10 22:30:03,085 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-10 22:30:03,087 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-10 22:30:03,088 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-10 22:30:03,088 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-10 22:30:03,094 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-10 22:30:03,095 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,096 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46197cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03, skipping insertion in model container
[2024-10-10 22:30:03,098 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,115 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-10 22:30:03,272 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/bitvector/sum02-2.c[711,724]
[2024-10-10 22:30:03,284 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 22:30:03,292 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-10 22:30:03,303 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/bitvector/sum02-2.c[711,724]
[2024-10-10 22:30:03,307 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-10 22:30:03,320 INFO  L204         MainTranslator]: Completed translation
[2024-10-10 22:30:03,321 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03 WrapperNode
[2024-10-10 22:30:03,321 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-10 22:30:03,322 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-10 22:30:03,322 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-10 22:30:03,322 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-10 22:30:03,329 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,334 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,349 INFO  L138                Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36
[2024-10-10 22:30:03,350 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-10 22:30:03,350 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-10 22:30:03,350 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-10 22:30:03,350 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-10 22:30:03,357 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,358 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,359 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,368 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].
[2024-10-10 22:30:03,368 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,368 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,371 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,373 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,374 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,375 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,376 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-10 22:30:03,377 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-10 22:30:03,377 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-10 22:30:03,377 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-10 22:30:03,378 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (1/1) ...
[2024-10-10 22:30:03,383 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-10 22:30:03,395 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:30:03,410 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-10-10 22:30:03,415 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-10-10 22:30:03,451 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-10 22:30:03,451 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-10 22:30:03,451 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-10 22:30:03,451 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-10 22:30:03,503 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-10 22:30:03,505 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-10 22:30:03,621 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-10-10 22:30:03,623 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-10 22:30:03,653 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-10 22:30:03,654 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-10 22:30:03,654 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:30:03 BoogieIcfgContainer
[2024-10-10 22:30:03,654 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-10 22:30:03,658 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-10 22:30:03,658 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-10 22:30:03,662 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-10 22:30:03,662 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:30:03" (1/3) ...
[2024-10-10 22:30:03,663 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f84ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:30:03, skipping insertion in model container
[2024-10-10 22:30:03,663 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:30:03" (2/3) ...
[2024-10-10 22:30:03,664 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f84ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:30:03, skipping insertion in model container
[2024-10-10 22:30:03,664 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:30:03" (3/3) ...
[2024-10-10 22:30:03,665 INFO  L112   eAbstractionObserver]: Analyzing ICFG sum02-2.c
[2024-10-10 22:30:03,682 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-10 22:30:03,682 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-10 22:30:03,750 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-10 22:30:03,757 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;@310c63df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-10 22:30:03,757 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-10 22:30:03,762 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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)
[2024-10-10 22:30:03,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-10-10 22:30:03,768 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:03,768 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:03,770 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:03,776 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:03,777 INFO  L85        PathProgramCache]: Analyzing trace with hash 1260317837, now seen corresponding path program 1 times
[2024-10-10 22:30:03,785 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:03,785 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370983429]
[2024-10-10 22:30:03,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:03,786 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:03,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:30:03,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:03,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:30:03,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370983429]
[2024-10-10 22:30:03,973 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370983429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:30:03,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:30:03,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-10-10 22:30:03,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221051681]
[2024-10-10 22:30:03,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:30:03,979 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-10-10 22:30:03,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:30:03,995 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-10-10 22:30:03,995 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-10 22:30:03,997 INFO  L87              Difference]: Start difference. First operand  has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2024-10-10 22:30:04,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:30:04,015 INFO  L93              Difference]: Finished difference Result 18 states and 23 transitions.
[2024-10-10 22:30:04,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-10-10 22:30:04,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7
[2024-10-10 22:30:04,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:30:04,022 INFO  L225             Difference]: With dead ends: 18
[2024-10-10 22:30:04,022 INFO  L226             Difference]: Without dead ends: 8
[2024-10-10 22:30:04,024 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-10-10 22:30:04,027 INFO  L432           NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:30:04,029 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-10 22:30:04,043 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2024-10-10 22:30:04,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2024-10-10 22:30:04,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2024-10-10 22:30:04,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2024-10-10 22:30:04,053 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7
[2024-10-10 22:30:04,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:30:04,053 INFO  L471      AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2024-10-10 22:30:04,053 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2024-10-10 22:30:04,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2024-10-10 22:30:04,054 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-10-10 22:30:04,054 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:04,054 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:04,054 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-10 22:30:04,055 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:04,055 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:04,055 INFO  L85        PathProgramCache]: Analyzing trace with hash 1317397393, now seen corresponding path program 1 times
[2024-10-10 22:30:04,056 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:04,056 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068630127]
[2024-10-10 22:30:04,056 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:04,056 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:04,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:30:04,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:04,359 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:30:04,359 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068630127]
[2024-10-10 22:30:04,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068630127] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-10 22:30:04,360 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-10 22:30:04,360 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-10 22:30:04,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256930918]
[2024-10-10 22:30:04,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-10 22:30:04,361 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-10 22:30:04,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:30:04,363 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-10 22:30:04,363 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-10 22:30:04,363 INFO  L87              Difference]: Start difference. First operand 8 states and 8 transitions. Second operand  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-10-10 22:30:04,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:30:04,382 INFO  L93              Difference]: Finished difference Result 13 states and 13 transitions.
[2024-10-10 22:30:04,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-10 22:30:04,383 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 7
[2024-10-10 22:30:04,383 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:30:04,384 INFO  L225             Difference]: With dead ends: 13
[2024-10-10 22:30:04,384 INFO  L226             Difference]: Without dead ends: 9
[2024-10-10 22:30:04,385 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-10 22:30:04,386 INFO  L432           NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:30:04,389 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-10 22:30:04,390 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-10-10 22:30:04,392 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-10-10 22:30:04,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2024-10-10 22:30:04,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-10-10 22:30:04,395 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7
[2024-10-10 22:30:04,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:30:04,395 INFO  L471      AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-10-10 22:30:04,395 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-10-10 22:30:04,396 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-10-10 22:30:04,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-10-10 22:30:04,396 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:04,396 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:04,396 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-10 22:30:04,397 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:04,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:04,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -2087506997, now seen corresponding path program 1 times
[2024-10-10 22:30:04,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:04,398 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340250811]
[2024-10-10 22:30:04,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:04,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:04,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:30:04,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:04,655 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:30:04,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340250811]
[2024-10-10 22:30:04,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340250811] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-10 22:30:04,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812733592]
[2024-10-10 22:30:04,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:04,657 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:04,657 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:30:04,659 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-10 22:30:04,661 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-10-10 22:30:04,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-10 22:30:04,724 INFO  L255         TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-10-10 22:30:04,733 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-10 22:30:04,796 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:04,796 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-10 22:30:04,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:04,891 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [812733592] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-10 22:30:04,891 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-10-10 22:30:04,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8
[2024-10-10 22:30:04,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456888310]
[2024-10-10 22:30:04,892 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-10-10 22:30:04,892 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-10-10 22:30:04,892 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:30:04,893 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-10-10 22:30:04,893 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-10-10 22:30:04,894 INFO  L87              Difference]: Start difference. First operand 9 states and 9 transitions. Second operand  has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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)
[2024-10-10 22:30:04,932 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:30:04,934 INFO  L93              Difference]: Finished difference Result 14 states and 14 transitions.
[2024-10-10 22:30:04,934 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-10 22:30:04,934 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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 8
[2024-10-10 22:30:04,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:30:04,935 INFO  L225             Difference]: With dead ends: 14
[2024-10-10 22:30:04,935 INFO  L226             Difference]: Without dead ends: 10
[2024-10-10 22:30:04,935 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-10-10 22:30:04,936 INFO  L432           NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-10 22:30:04,937 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-10 22:30:04,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-10-10 22:30:04,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-10-10 22:30:04,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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)
[2024-10-10 22:30:04,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-10-10 22:30:04,944 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8
[2024-10-10 22:30:04,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:30:04,944 INFO  L471      AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-10-10 22:30:04,945 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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)
[2024-10-10 22:30:04,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-10-10 22:30:04,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-10-10 22:30:04,946 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:04,946 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:04,964 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-10-10 22:30:05,146 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:05,147 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:05,148 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:05,148 INFO  L85        PathProgramCache]: Analyzing trace with hash -265360687, now seen corresponding path program 2 times
[2024-10-10 22:30:05,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:05,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534690358]
[2024-10-10 22:30:05,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:05,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:05,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-10-10 22:30:05,177 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094881635]
[2024-10-10 22:30:05,179 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-10-10 22:30:05,179 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:05,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:30:05,181 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-10 22:30:05,184 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-10-10 22:30:05,245 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-10-10 22:30:05,246 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-10-10 22:30:05,247 INFO  L255         TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 22 conjuncts are in the unsatisfiable core
[2024-10-10 22:30:05,250 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-10 22:30:05,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:05,364 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-10 22:30:06,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:06,964 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:30:06,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534690358]
[2024-10-10 22:30:06,965 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-10-10 22:30:06,965 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094881635]
[2024-10-10 22:30:06,967 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094881635] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-10 22:30:06,967 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-10-10 22:30:06,967 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-10-10 22:30:06,967 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363766252]
[2024-10-10 22:30:06,968 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-10-10 22:30:06,968 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-10-10 22:30:06,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:30:06,970 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-10-10 22:30:06,971 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2024-10-10 22:30:06,971 INFO  L87              Difference]: Start difference. First operand 10 states and 10 transitions. Second operand  has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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)
[2024-10-10 22:30:08,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:30:08,206 INFO  L93              Difference]: Finished difference Result 19 states and 22 transitions.
[2024-10-10 22:30:08,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-10-10 22:30:08,207 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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 9
[2024-10-10 22:30:08,207 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:30:08,207 INFO  L225             Difference]: With dead ends: 19
[2024-10-10 22:30:08,208 INFO  L226             Difference]: Without dead ends: 14
[2024-10-10 22:30:08,208 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2024-10-10 22:30:08,209 INFO  L432           NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-10-10 22:30:08,209 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-10-10 22:30:08,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2024-10-10 22:30:08,215 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2024-10-10 22:30:08,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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)
[2024-10-10 22:30:08,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions.
[2024-10-10 22:30:08,216 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9
[2024-10-10 22:30:08,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:30:08,217 INFO  L471      AbstractCegarLoop]: Abstraction has 14 states and 14 transitions.
[2024-10-10 22:30:08,217 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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)
[2024-10-10 22:30:08,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions.
[2024-10-10 22:30:08,217 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-10-10 22:30:08,217 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:08,218 INFO  L215           NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:08,234 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-10-10 22:30:08,418 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:08,418 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:08,419 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:08,419 INFO  L85        PathProgramCache]: Analyzing trace with hash -687437487, now seen corresponding path program 3 times
[2024-10-10 22:30:08,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:08,419 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204884082]
[2024-10-10 22:30:08,419 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:08,419 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:08,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-10-10 22:30:08,471 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393982471]
[2024-10-10 22:30:08,471 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-10-10 22:30:08,471 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:08,471 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:30:08,473 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-10 22:30:08,476 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-10-10 22:30:08,685 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2024-10-10 22:30:08,685 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-10-10 22:30:08,686 WARN  L253         TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-10-10 22:30:08,689 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-10 22:30:08,854 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:08,855 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-10 22:30:22,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:30:22,394 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-10 22:30:22,394 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204884082]
[2024-10-10 22:30:22,394 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-10-10 22:30:22,395 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393982471]
[2024-10-10 22:30:22,395 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393982471] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-10 22:30:22,395 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-10-10 22:30:22,395 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2024-10-10 22:30:22,395 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327940350]
[2024-10-10 22:30:22,395 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-10-10 22:30:22,395 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-10-10 22:30:22,396 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-10 22:30:22,396 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-10-10 22:30:22,396 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=321, Unknown=1, NotChecked=0, Total=420
[2024-10-10 22:30:22,397 INFO  L87              Difference]: Start difference. First operand 14 states and 14 transitions. Second operand  has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 states have internal predecessors, (24), 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)
[2024-10-10 22:30:26,403 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []
[2024-10-10 22:30:30,642 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]
[2024-10-10 22:30:34,648 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-10-10 22:30:38,814 WARN  L851   $PredicateComparison]: unable to prove that (let ((.cse7 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse10 (mod |c_ULTIMATE.start_main_~n~0#1| 4294967296)) (.cse6 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse0 (< .cse10 .cse6)) (.cse1 (< .cse10 .cse8)) (.cse12 (mod (+ 5 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse3 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse11 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 4) 4294967296)) (.cse5 (div (+ (* .cse10 .cse10) .cse10) 2)) (.cse4 (+ .cse10 1)) (.cse13 (< .cse10 .cse7))) (and (let ((.cse2 (mod (+ .cse6 .cse7 |c_ULTIMATE.start_main_~sn~0#1| .cse8) 18446744073709551616))) (or .cse0 .cse1 (= .cse2 0) (< .cse3 .cse4) (= .cse5 .cse2))) (let ((.cse9 (mod (+ .cse3 .cse6 .cse7 |c_ULTIMATE.start_main_~sn~0#1| .cse11 .cse8) 18446744073709551616))) (or (= .cse9 .cse5) (< .cse10 .cse11) (< .cse12 .cse4) .cse13 (= .cse9 0))) (let ((.cse14 (mod |c_ULTIMATE.start_main_~sn~0#1| 18446744073709551616))) (or (= .cse14 0) (< .cse7 .cse4) (= .cse14 .cse5))) (let ((.cse15 (mod (+ .cse6 .cse7 |c_ULTIMATE.start_main_~sn~0#1|) 18446744073709551616))) (or (< .cse8 .cse4) .cse0 (= .cse5 .cse15) (= .cse15 0) .cse13)) (let ((.cse16 (mod (+ .cse3 .cse6 .cse7 |c_ULTIMATE.start_main_~sn~0#1| .cse8) 18446744073709551616))) (or (< .cse10 .cse3) (= .cse16 0) .cse1 (= .cse16 .cse5) (< .cse11 .cse4))) (let ((.cse17 (mod (+ .cse12 .cse3 .cse6 .cse7 |c_ULTIMATE.start_main_~sn~0#1| .cse11 .cse8) 18446744073709551616))) (or (forall ((v_z_6 Int)) (or (< (mod (+ 6 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) (+ v_z_6 1)) (= (div (+ (* v_z_6 v_z_6) v_z_6) 2) .cse17) (< v_z_6 .cse12) (< v_z_6 .cse7))) (= 0 .cse17))) (let ((.cse18 (mod (+ .cse7 |c_ULTIMATE.start_main_~sn~0#1|) 18446744073709551616))) (or (= .cse5 .cse18) (< .cse6 .cse4) .cse13 (= .cse18 0)))))) is different from false
[2024-10-10 22:30:51,686 WARN  L286               SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-10-10 22:30:58,963 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-10 22:30:58,963 INFO  L93              Difference]: Finished difference Result 27 states and 34 transitions.
[2024-10-10 22:30:58,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2024-10-10 22:30:58,964 INFO  L78                 Accepts]: Start accepts. Automaton has  has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 states have internal predecessors, (24), 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 13
[2024-10-10 22:30:58,964 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-10 22:30:58,964 INFO  L225             Difference]: With dead ends: 27
[2024-10-10 22:30:58,965 INFO  L226             Difference]: Without dead ends: 22
[2024-10-10 22:30:58,965 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=195, Invalid=562, Unknown=3, NotChecked=52, Total=812
[2024-10-10 22:30:58,966 INFO  L432           NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time
[2024-10-10 22:30:58,966 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 3 Unknown, 33 Unchecked, 12.8s Time]
[2024-10-10 22:30:58,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-10-10 22:30:58,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-10-10 22:30:58,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 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)
[2024-10-10 22:30:58,980 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions.
[2024-10-10 22:30:58,981 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13
[2024-10-10 22:30:58,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-10 22:30:58,981 INFO  L471      AbstractCegarLoop]: Abstraction has 22 states and 22 transitions.
[2024-10-10 22:30:58,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 20 states have internal predecessors, (24), 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)
[2024-10-10 22:30:58,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions.
[2024-10-10 22:30:58,982 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-10-10 22:30:58,982 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-10 22:30:58,982 INFO  L215           NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1]
[2024-10-10 22:30:58,990 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-10-10 22:30:59,183 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:59,184 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-10 22:30:59,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-10 22:30:59,184 INFO  L85        PathProgramCache]: Analyzing trace with hash -1300494767, now seen corresponding path program 4 times
[2024-10-10 22:30:59,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-10 22:30:59,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809721376]
[2024-10-10 22:30:59,185 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-10 22:30:59,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-10 22:30:59,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-10-10 22:30:59,302 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558370665]
[2024-10-10 22:30:59,303 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-10-10 22:30:59,303 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-10 22:30:59,303 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3
[2024-10-10 22:30:59,305 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-10-10 22:30:59,306 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-10-10 22:30:59,773 INFO  L228   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-10-10 22:30:59,773 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-10-10 22:30:59,775 WARN  L253         TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 78 conjuncts are in the unsatisfiable core
[2024-10-10 22:30:59,777 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-10 22:31:00,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-10 22:31:00,118 INFO  L311         TraceCheckSpWp]: Computing backward predicates...