/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-93.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:00:50,239 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:00:50,295 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 22:00:50,298 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:00:50,299 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:00:50,322 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:00:50,322 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:00:50,322 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:00:50,323 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:00:50,323 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:00:50,323 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:00:50,324 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:00:50,324 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:00:50,324 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:00:50,325 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:00:50,325 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:00:50,327 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:00:50,329 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:00:50,329 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:00:50,329 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:00:50,329 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:00:50,329 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:00:50,330 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:00:50,330 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:00:50,330 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:00:50,330 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:00:50,330 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:00:50,331 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:00:50,331 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:00:50,331 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:00:50,331 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:00:50,331 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:00:50,332 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:00:50,332 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:00:50,332 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:00:50,334 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:00:50,334 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:00:50,334 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:00:50,334 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:00:50,334 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:00:50,335 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:00:50,335 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:00:50,335 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:00:50,335 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:00:50,335 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:00:50,509 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:00:50,527 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:00:50,529 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:00:50,531 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:00:50,531 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:00:50,532 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-93.i
[2024-11-02 22:00:51,731 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:00:51,911 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:00:51,914 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-93.i
[2024-11-02 22:00:51,925 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd5d5c234/8f81fb2a621b4c5284e4701e5c92c397/FLAGf3b3f6fe9
[2024-11-02 22:00:52,297 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd5d5c234/8f81fb2a621b4c5284e4701e5c92c397
[2024-11-02 22:00:52,299 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:00:52,300 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:00:52,303 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:00:52,303 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:00:52,307 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:00:52,308 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,308 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2287b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52, skipping insertion in model container
[2024-11-02 22:00:52,308 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,345 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:00:52,468 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-93.i[916,929]
[2024-11-02 22:00:52,580 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:00:52,599 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:00:52,613 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-93.i[916,929]
[2024-11-02 22:00:52,672 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:00:52,699 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:00:52,700 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52 WrapperNode
[2024-11-02 22:00:52,700 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:00:52,702 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:00:52,702 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:00:52,702 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:00:52,707 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,721 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,748 INFO  L138                Inliner]: procedures = 27, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 352
[2024-11-02 22:00:52,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:00:52,751 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:00:52,751 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:00:52,751 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:00:52,759 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,760 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,765 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,784 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 22:00:52,784 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,785 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,799 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,807 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,811 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,817 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,830 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:00:52,831 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:00:52,831 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:00:52,831 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:00:52,831 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (1/1) ...
[2024-11-02 22:00:52,839 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:00:52,848 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:00:52,861 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 22:00:52,863 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 22:00:52,882 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:00:52,882 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:00:52,883 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:00:52,883 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:00:52,883 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:00:52,884 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:00:52,997 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:00:52,999 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:01:15,624 INFO  L?                        ?]: Removed 46 outVars from TransFormulas that were not future-live.
[2024-11-02 22:01:15,625 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:01:15,640 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:01:15,640 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:01:15,640 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:01:15 BoogieIcfgContainer
[2024-11-02 22:01:15,640 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:01:15,642 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:01:15,642 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:01:15,644 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:01:15,644 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:00:52" (1/3) ...
[2024-11-02 22:01:15,645 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1b0fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:01:15, skipping insertion in model container
[2024-11-02 22:01:15,645 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:00:52" (2/3) ...
[2024-11-02 22:01:15,645 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1b0fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:01:15, skipping insertion in model container
[2024-11-02 22:01:15,645 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:01:15" (3/3) ...
[2024-11-02 22:01:15,646 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-93.i
[2024-11-02 22:01:15,658 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:01:15,658 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:01:15,706 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:01:15,711 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;@26007341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:01:15,711 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:01:15,715 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 149 states, 100 states have (on average 1.47) internal successors, (147), 101 states have internal predecessors, (147), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-02 22:01:15,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-02 22:01:15,732 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:01:15,733 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:15,733 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:01:15,738 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:01:15,738 INFO  L85        PathProgramCache]: Analyzing trace with hash -2006723869, now seen corresponding path program 1 times
[2024-11-02 22:01:15,744 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:01:15,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303172049]
[2024-11-02 22:01:15,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:01:15,747 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:01:15,747 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:01:15,748 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 22:01:15,749 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 22:01:16,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:01:17,200 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:01:17,210 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:01:17,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked.
[2024-11-02 22:01:17,274 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:01:21,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked.
[2024-11-02 22:01:21,852 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:01:21,852 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303172049]
[2024-11-02 22:01:21,853 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1303172049] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:01:21,854 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:01:21,854 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:01:21,855 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681113602]
[2024-11-02 22:01:21,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:01:21,860 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:01:21,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:01:21,875 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:01:21,876 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:01:21,878 INFO  L87              Difference]: Start difference. First operand  has 149 states, 100 states have (on average 1.47) internal successors, (147), 101 states have internal predecessors, (147), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-02 22:01:21,914 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:01:21,914 INFO  L93              Difference]: Finished difference Result 291 states and 518 transitions.
[2024-11-02 22:01:21,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:01:21,918 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 310
[2024-11-02 22:01:21,918 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:01:21,924 INFO  L225             Difference]: With dead ends: 291
[2024-11-02 22:01:21,924 INFO  L226             Difference]: Without dead ends: 145
[2024-11-02 22:01:21,927 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 618 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 22:01:21,930 INFO  L432           NwaCegarLoop]: 231 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, 231 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 22:01:21,930 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:01:21,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-11-02 22:01:21,975 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145.
[2024-11-02 22:01:21,976 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 145 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 97 states have internal predecessors, (139), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-02 22:01:21,981 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 231 transitions.
[2024-11-02 22:01:21,982 INFO  L78                 Accepts]: Start accepts. Automaton has 145 states and 231 transitions. Word has length 310
[2024-11-02 22:01:21,983 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:01:21,983 INFO  L471      AbstractCegarLoop]: Abstraction has 145 states and 231 transitions.
[2024-11-02 22:01:21,986 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46)
[2024-11-02 22:01:21,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 145 states and 231 transitions.
[2024-11-02 22:01:21,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-02 22:01:21,991 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:01:21,995 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:22,154 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 22:01:22,196 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 22:01:22,196 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:01:22,197 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:01:22,197 INFO  L85        PathProgramCache]: Analyzing trace with hash -1259199469, now seen corresponding path program 1 times
[2024-11-02 22:01:22,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:01:22,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876566272]
[2024-11-02 22:01:22,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:01:22,198 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:01:22,198 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:01:22,199 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 22:01:22,200 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 22:01:23,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:01:23,536 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:01:23,543 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:01:23,864 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:01:23,864 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:01:28,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:01:28,344 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:01:28,344 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876566272]
[2024-11-02 22:01:28,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [876566272] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:01:28,345 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:01:28,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:01:28,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655182886]
[2024-11-02 22:01:28,345 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:01:28,347 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:01:28,347 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:01:28,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:01:28,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:01:28,348 INFO  L87              Difference]: Start difference. First operand 145 states and 231 transitions. Second operand  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:01:34,660 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:01:38,667 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 22:01:38,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:01:38,672 INFO  L93              Difference]: Finished difference Result 342 states and 546 transitions.
[2024-11-02 22:01:38,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:01:38,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 310
[2024-11-02 22:01:38,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:01:38,911 INFO  L225             Difference]: With dead ends: 342
[2024-11-02 22:01:38,911 INFO  L226             Difference]: Without dead ends: 200
[2024-11-02 22:01:38,911 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 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 22:01:38,912 INFO  L432           NwaCegarLoop]: 230 mSDtfsCounter, 78 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time
[2024-11-02 22:01:38,913 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 432 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time]
[2024-11-02 22:01:38,913 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 200 states.
[2024-11-02 22:01:38,925 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 168.
[2024-11-02 22:01:38,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168 states, 120 states have (on average 1.4333333333333333) internal successors, (172), 120 states have internal predecessors, (172), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-02 22:01:38,928 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 264 transitions.
[2024-11-02 22:01:38,928 INFO  L78                 Accepts]: Start accepts. Automaton has 168 states and 264 transitions. Word has length 310
[2024-11-02 22:01:38,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:01:38,931 INFO  L471      AbstractCegarLoop]: Abstraction has 168 states and 264 transitions.
[2024-11-02 22:01:38,931 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:01:38,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states and 264 transitions.
[2024-11-02 22:01:38,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-02 22:01:38,936 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:01:38,937 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:39,070 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 22:01:39,137 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 22:01:39,138 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:01:39,138 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:01:39,138 INFO  L85        PathProgramCache]: Analyzing trace with hash 791784529, now seen corresponding path program 1 times
[2024-11-02 22:01:39,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:01:39,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783474568]
[2024-11-02 22:01:39,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:01:39,139 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:01:39,139 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:01:39,140 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 22:01:39,141 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 22:01:40,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:01:40,490 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:01:40,495 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:01:41,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:01:41,500 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:01:47,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:01:47,370 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:01:47,370 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783474568]
[2024-11-02 22:01:47,370 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [783474568] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:01:47,370 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:01:47,370 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2024-11-02 22:01:47,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489616727]
[2024-11-02 22:01:47,370 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:01:47,373 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 22:01:47,373 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:01:47,373 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 22:01:47,374 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:01:47,374 INFO  L87              Difference]: Start difference. First operand 168 states and 264 transitions. Second operand  has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:01:54,697 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:01:58,705 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:02:02,711 WARN  L539   Checker$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 22:02:06,716 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 22:02:06,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:02:06,719 INFO  L93              Difference]: Finished difference Result 365 states and 573 transitions.
[2024-11-02 22:02:06,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 22:02:06,990 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 310
[2024-11-02 22:02:06,991 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:02:06,992 INFO  L225             Difference]: With dead ends: 365
[2024-11-02 22:02:06,992 INFO  L226             Difference]: Without dead ends: 200
[2024-11-02 22:02:06,993 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 22:02:06,994 INFO  L432           NwaCegarLoop]: 231 mSDtfsCounter, 69 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time
[2024-11-02 22:02:06,995 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 661 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 19.1s Time]
[2024-11-02 22:02:06,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 200 states.
[2024-11-02 22:02:07,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 168.
[2024-11-02 22:02:07,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 168 states, 120 states have (on average 1.425) internal successors, (171), 120 states have internal predecessors, (171), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-02 22:02:07,005 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 263 transitions.
[2024-11-02 22:02:07,005 INFO  L78                 Accepts]: Start accepts. Automaton has 168 states and 263 transitions. Word has length 310
[2024-11-02 22:02:07,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:02:07,006 INFO  L471      AbstractCegarLoop]: Abstraction has 168 states and 263 transitions.
[2024-11-02 22:02:07,006 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:02:07,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 168 states and 263 transitions.
[2024-11-02 22:02:07,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-02 22:02:07,008 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:02:07,008 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:07,148 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 22:02:07,209 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 22:02:07,209 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:02:07,210 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:02:07,210 INFO  L85        PathProgramCache]: Analyzing trace with hash 1437162641, now seen corresponding path program 1 times
[2024-11-02 22:02:07,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:02:07,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143844976]
[2024-11-02 22:02:07,210 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:02:07,210 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:02:07,210 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:02:07,212 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 22:02:07,212 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 22:02:08,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:02:08,520 INFO  L255         TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:02:08,524 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:02:09,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:02:09,510 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:02:15,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked.
[2024-11-02 22:02:15,917 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:02:15,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143844976]
[2024-11-02 22:02:15,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1143844976] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:02:15,918 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:02:15,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:02:15,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257729689]
[2024-11-02 22:02:15,918 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:02:15,919 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:02:15,919 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:02:15,919 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:02:15,919 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:02:15,919 INFO  L87              Difference]: Start difference. First operand 168 states and 263 transitions. Second operand  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:02:22,823 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:02:26,840 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 22:02:27,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:02:27,186 INFO  L93              Difference]: Finished difference Result 374 states and 587 transitions.
[2024-11-02 22:02:27,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:02:27,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 310
[2024-11-02 22:02:27,187 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:02:27,189 INFO  L225             Difference]: With dead ends: 374
[2024-11-02 22:02:27,189 INFO  L226             Difference]: Without dead ends: 209
[2024-11-02 22:02:27,189 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 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 22:02:27,190 INFO  L432           NwaCegarLoop]: 294 mSDtfsCounter, 70 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:02:27,193 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 495 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time]
[2024-11-02 22:02:27,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 209 states.
[2024-11-02 22:02:27,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 180.
[2024-11-02 22:02:27,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 180 states, 132 states have (on average 1.4015151515151516) internal successors, (185), 132 states have internal predecessors, (185), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-11-02 22:02:27,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 277 transitions.
[2024-11-02 22:02:27,211 INFO  L78                 Accepts]: Start accepts. Automaton has 180 states and 277 transitions. Word has length 310
[2024-11-02 22:02:27,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:02:27,212 INFO  L471      AbstractCegarLoop]: Abstraction has 180 states and 277 transitions.
[2024-11-02 22:02:27,212 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46)
[2024-11-02 22:02:27,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 180 states and 277 transitions.
[2024-11-02 22:02:27,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2024-11-02 22:02:27,213 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:02:27,213 INFO  L215           NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:02:27,361 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-02 22:02:27,414 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 22:02:27,414 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:02:27,415 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:02:27,415 INFO  L85        PathProgramCache]: Analyzing trace with hash -1750902332, now seen corresponding path program 1 times
[2024-11-02 22:02:27,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:02:27,415 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635755500]
[2024-11-02 22:02:27,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:02:27,415 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:02:27,416 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:02:27,416 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 22:02:27,417 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 22:02:28,524 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:02:28,761 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-02 22:02:28,766 INFO  L278         TraceCheckSpWp]: Computing forward predicates...