/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-65.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:56:34,319 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:56:34,393 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:56:34,397 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:56:34,398 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:56:34,424 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:56:34,424 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:56:34,425 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:56:34,425 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:56:34,425 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:56:34,426 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:56:34,426 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:56:34,427 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:56:34,429 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:56:34,429 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:56:34,429 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:56:34,429 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:56:34,429 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:56:34,430 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:56:34,430 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:56:34,430 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:56:34,433 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:56:34,434 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:56:34,435 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:56:34,435 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:56:34,435 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:56:34,435 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:56:34,435 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:56:34,435 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:56:34,436 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:56:34,436 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:56:34,436 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:56:34,436 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:56:34,436 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:56:34,436 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:56:34,437 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:56:34,437 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:56:34,438 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:56:34,438 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:56:34,438 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:56:34,669 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:56:34,698 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:56:34,702 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:56:34,703 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:56:34,704 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:56:34,705 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-65.i
[2024-11-02 21:56:36,076 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:56:36,303 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:56:36,304 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-65.i
[2024-11-02 21:56:36,313 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d1fedbe7/b1611684a6284948adb8c47d2aa88f51/FLAG2f56227d8
[2024-11-02 21:56:36,688 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d1fedbe7/b1611684a6284948adb8c47d2aa88f51
[2024-11-02 21:56:36,690 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:56:36,691 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:56:36,692 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:56:36,692 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:56:36,698 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:56:36,699 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:56:36" (1/1) ...
[2024-11-02 21:56:36,700 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cffe271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:36, skipping insertion in model container
[2024-11-02 21:56:36,700 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:56:36" (1/1) ...
[2024-11-02 21:56:36,747 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:56:36,893 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-65.i[916,929]
[2024-11-02 21:56:37,036 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:56:37,061 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:56:37,070 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-65.i[916,929]
[2024-11-02 21:56:37,127 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:56:37,148 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:56:37,149 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37 WrapperNode
[2024-11-02 21:56:37,149 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:56:37,150 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:56:37,150 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:56:37,150 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:56:37,156 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,170 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,200 INFO  L138                Inliner]: procedures = 27, calls = 64, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 362
[2024-11-02 21:56:37,201 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:56:37,201 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:56:37,202 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:56:37,202 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:56:37,212 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,213 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,220 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,255 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].
[2024-11-02 21:56:37,256 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,256 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,282 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,292 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,296 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,301 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,310 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:56:37,314 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:56:37,315 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:56:37,315 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:56:37,316 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (1/1) ...
[2024-11-02 21:56:37,325 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:56:37,334 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:56:37,352 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)
[2024-11-02 21:56:37,355 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
[2024-11-02 21:56:37,378 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:56:37,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:56:37,378 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:56:37,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:56:37,378 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:56:37,379 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:56:37,511 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:56:37,512 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:57:03,323 INFO  L?                        ?]: Removed 54 outVars from TransFormulas that were not future-live.
[2024-11-02 21:57:03,323 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:57:03,339 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:57:03,339 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:57:03,339 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:57:03 BoogieIcfgContainer
[2024-11-02 21:57:03,340 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:57:03,341 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:57:03,341 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:57:03,344 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:57:03,344 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:56:36" (1/3) ...
[2024-11-02 21:57:03,344 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8cc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:57:03, skipping insertion in model container
[2024-11-02 21:57:03,344 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:56:37" (2/3) ...
[2024-11-02 21:57:03,344 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8cc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:57:03, skipping insertion in model container
[2024-11-02 21:57:03,345 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:57:03" (3/3) ...
[2024-11-02 21:57:03,345 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-65.i
[2024-11-02 21:57:03,357 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:57:03,358 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:57:03,407 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:57:03,412 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;@50f1961c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:57:03,412 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:57:03,418 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 150 states, 96 states have (on average 1.4479166666666667) internal successors, (139), 97 states have internal predecessors, (139), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-02 21:57:03,435 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 330
[2024-11-02 21:57:03,435 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:57:03,436 INFO  L215           NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:57:03,437 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:57:03,440 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:57:03,441 INFO  L85        PathProgramCache]: Analyzing trace with hash -2093667253, now seen corresponding path program 1 times
[2024-11-02 21:57:03,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:57:03,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539932246]
[2024-11-02 21:57:03,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:57:03,449 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:03,449 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:57:03,451 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:57:03,452 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:57:04,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:57:04,629 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:57:04,645 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:57:04,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked.
[2024-11-02 21:57:04,707 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:57:09,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked.
[2024-11-02 21:57:09,046 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:57:09,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539932246]
[2024-11-02 21:57:09,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [539932246] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:57:09,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:57:09,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:57:09,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197550155]
[2024-11-02 21:57:09,053 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:57:09,056 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:57:09,057 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:57:09,079 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:57:09,079 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:57:09,081 INFO  L87              Difference]: Start difference. First operand  has 150 states, 96 states have (on average 1.4479166666666667) internal successors, (139), 97 states have internal predecessors, (139), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51)
[2024-11-02 21:57:09,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:57:09,116 INFO  L93              Difference]: Finished difference Result 293 states and 527 transitions.
[2024-11-02 21:57:09,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:57:09,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) Word has length 329
[2024-11-02 21:57:09,118 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:57:09,126 INFO  L225             Difference]: With dead ends: 293
[2024-11-02 21:57:09,127 INFO  L226             Difference]: Without dead ends: 146
[2024-11-02 21:57:09,131 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:57:09,134 INFO  L432           NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:57:09,134 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:57:09,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2024-11-02 21:57:09,180 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146.
[2024-11-02 21:57:09,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 146 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 93 states have internal predecessors, (132), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51)
[2024-11-02 21:57:09,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 234 transitions.
[2024-11-02 21:57:09,185 INFO  L78                 Accepts]: Start accepts. Automaton has 146 states and 234 transitions. Word has length 329
[2024-11-02 21:57:09,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:57:09,185 INFO  L471      AbstractCegarLoop]: Abstraction has 146 states and 234 transitions.
[2024-11-02 21:57:09,186 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51)
[2024-11-02 21:57:09,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 146 states and 234 transitions.
[2024-11-02 21:57:09,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 330
[2024-11-02 21:57:09,190 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:57:09,191 INFO  L215           NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:57:09,303 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 21:57:09,394 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:09,395 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:57:09,396 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:57:09,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 1447692437, now seen corresponding path program 1 times
[2024-11-02 21:57:09,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:57:09,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314783506]
[2024-11-02 21:57:09,396 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:57:09,396 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:09,396 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:57:09,398 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:57:09,400 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:57:10,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:57:10,516 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:57:10,526 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:57:10,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:57:10,766 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:57:15,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:57:15,531 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:57:15,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314783506]
[2024-11-02 21:57:15,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1314783506] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:57:15,531 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:57:15,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:57:15,532 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446289742]
[2024-11-02 21:57:15,532 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:57:15,539 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:57:15,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:57:15,540 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:57:15,540 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:57:15,543 INFO  L87              Difference]: Start difference. First operand 146 states and 234 transitions. Second operand  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:57:20,181 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:24,196 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:24,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:57:24,435 INFO  L93              Difference]: Finished difference Result 432 states and 696 transitions.
[2024-11-02 21:57:24,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:57:24,436 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 329
[2024-11-02 21:57:24,438 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:57:24,440 INFO  L225             Difference]: With dead ends: 432
[2024-11-02 21:57:24,441 INFO  L226             Difference]: Without dead ends: 289
[2024-11-02 21:57:24,442 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:57:24,442 INFO  L432           NwaCegarLoop]: 436 mSDtfsCounter, 226 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:57:24,446 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 664 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time]
[2024-11-02 21:57:24,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-02 21:57:24,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287.
[2024-11-02 21:57:24,495 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 287 states, 182 states have (on average 1.4230769230769231) internal successors, (259), 182 states have internal predecessors, (259), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102)
[2024-11-02 21:57:24,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 463 transitions.
[2024-11-02 21:57:24,500 INFO  L78                 Accepts]: Start accepts. Automaton has 287 states and 463 transitions. Word has length 329
[2024-11-02 21:57:24,501 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:57:24,501 INFO  L471      AbstractCegarLoop]: Abstraction has 287 states and 463 transitions.
[2024-11-02 21:57:24,501 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:57:24,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 287 states and 463 transitions.
[2024-11-02 21:57:24,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 330
[2024-11-02 21:57:24,508 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:57:24,508 INFO  L215           NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:57:24,628 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 21:57:24,709 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:24,710 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:57:24,710 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:57:24,710 INFO  L85        PathProgramCache]: Analyzing trace with hash -2146210281, now seen corresponding path program 1 times
[2024-11-02 21:57:24,710 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:57:24,710 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607038520]
[2024-11-02 21:57:24,711 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:57:24,711 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:24,711 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:57:24,714 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:57:24,715 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:57:25,684 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:57:25,882 INFO  L255         TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:57:25,890 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:57:27,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:57:27,758 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:57:34,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:57:34,195 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:57:34,195 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607038520]
[2024-11-02 21:57:34,195 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1607038520] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:57:34,195 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:57:34,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-02 21:57:34,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090039491]
[2024-11-02 21:57:34,196 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:57:34,196 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:57:34,197 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:57:34,198 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:57:34,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:57:34,199 INFO  L87              Difference]: Start difference. First operand 287 states and 463 transitions. Second operand  has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:57:36,014 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:41,681 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:45,688 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:49,709 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:53,713 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:57:55,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:57:55,677 INFO  L93              Difference]: Finished difference Result 849 states and 1363 transitions.
[2024-11-02 21:57:55,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 21:57:55,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 329
[2024-11-02 21:57:55,679 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:57:55,687 INFO  L225             Difference]: With dead ends: 849
[2024-11-02 21:57:55,687 INFO  L226             Difference]: Without dead ends: 565
[2024-11-02 21:57:55,688 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:57:55,689 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 383 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 110 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time
[2024-11-02 21:57:55,690 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 629 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 97 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time]
[2024-11-02 21:57:55,691 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 565 states.
[2024-11-02 21:57:55,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 525.
[2024-11-02 21:57:55,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 525 states, 314 states have (on average 1.356687898089172) internal successors, (426), 316 states have internal predecessors, (426), 204 states have call successors, (204), 6 states have call predecessors, (204), 6 states have return successors, (204), 202 states have call predecessors, (204), 204 states have call successors, (204)
[2024-11-02 21:57:55,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 834 transitions.
[2024-11-02 21:57:55,749 INFO  L78                 Accepts]: Start accepts. Automaton has 525 states and 834 transitions. Word has length 329
[2024-11-02 21:57:55,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:57:55,750 INFO  L471      AbstractCegarLoop]: Abstraction has 525 states and 834 transitions.
[2024-11-02 21:57:55,750 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:57:55,751 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states and 834 transitions.
[2024-11-02 21:57:55,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 330
[2024-11-02 21:57:55,754 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:57:55,756 INFO  L215           NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:57:55,875 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:57:55,957 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:55,957 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:57:55,958 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:57:55,958 INFO  L85        PathProgramCache]: Analyzing trace with hash 1726055189, now seen corresponding path program 1 times
[2024-11-02 21:57:55,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:57:55,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57032091]
[2024-11-02 21:57:55,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:57:55,959 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:57:55,959 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:57:55,960 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:57:55,961 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:57:56,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:57:57,152 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:57:57,157 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:57:57,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:57:57,670 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:58:03,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked.
[2024-11-02 21:58:03,005 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:58:03,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57032091]
[2024-11-02 21:58:03,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [57032091] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:58:03,006 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:58:03,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2024-11-02 21:58:03,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680280603]
[2024-11-02 21:58:03,006 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:58:03,009 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 21:58:03,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:58:03,011 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 21:58:03,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 21:58:03,011 INFO  L87              Difference]: Start difference. First operand 525 states and 834 transitions. Second operand  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:58:08,929 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:58:12,935 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:58:16,942 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:58:20,978 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:58:21,248 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:58:21,248 INFO  L93              Difference]: Finished difference Result 1107 states and 1764 transitions.
[2024-11-02 21:58:21,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 21:58:21,249 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 329
[2024-11-02 21:58:21,249 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:58:21,254 INFO  L225             Difference]: With dead ends: 1107
[2024-11-02 21:58:21,254 INFO  L226             Difference]: Without dead ends: 579
[2024-11-02 21:58:21,256 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 21:58:21,256 INFO  L432           NwaCegarLoop]: 407 mSDtfsCounter, 205 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:58:21,257 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1032 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 4 Unknown, 0 Unchecked, 18.0s Time]
[2024-11-02 21:58:21,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 579 states.
[2024-11-02 21:58:21,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 539.
[2024-11-02 21:58:21,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 539 states, 328 states have (on average 1.353658536585366) internal successors, (444), 330 states have internal predecessors, (444), 204 states have call successors, (204), 6 states have call predecessors, (204), 6 states have return successors, (204), 202 states have call predecessors, (204), 204 states have call successors, (204)
[2024-11-02 21:58:21,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 852 transitions.
[2024-11-02 21:58:21,293 INFO  L78                 Accepts]: Start accepts. Automaton has 539 states and 852 transitions. Word has length 329
[2024-11-02 21:58:21,293 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:58:21,293 INFO  L471      AbstractCegarLoop]: Abstraction has 539 states and 852 transitions.
[2024-11-02 21:58:21,293 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51)
[2024-11-02 21:58:21,293 INFO  L276                IsEmpty]: Start isEmpty. Operand 539 states and 852 transitions.
[2024-11-02 21:58:21,295 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 331
[2024-11-02 21:58:21,295 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:58:21,295 INFO  L215           NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:58:21,394 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 21:58:21,495 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:21,496 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:58:21,496 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:58:21,497 INFO  L85        PathProgramCache]: Analyzing trace with hash -740328558, now seen corresponding path program 1 times
[2024-11-02 21:58:21,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:58:21,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143433395]
[2024-11-02 21:58:21,497 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:58:21,497 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:58:21,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:58:21,498 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:58:21,499 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:58:22,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:58:22,518 INFO  L255         TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:58:22,523 INFO  L278         TraceCheckSpWp]: Computing forward predicates...