/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-27.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:25:53,984 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:25:54,041 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 13:25:54,045 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:25:54,045 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:25:54,070 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:25:54,071 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:25:54,071 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:25:54,072 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:25:54,072 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:25:54,072 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:25:54,073 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:25:54,074 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:25:54,077 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:25:54,077 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:25:54,078 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:25:54,078 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:25:54,078 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:25:54,078 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:25:54,078 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:25:54,079 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:25:54,081 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:25:54,081 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:25:54,081 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:25:54,081 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:25:54,082 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:25:54,082 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:25:54,082 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:25:54,082 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:25:54,082 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:25:54,083 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:25:54,083 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:25:54,083 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:25:54,083 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:25:54,083 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:25:54,084 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:25:54,084 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:25:54,084 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:25:54,084 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:25:54,084 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:25:54,085 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:25:54,086 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:25:54,086 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:25:54,086 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:25:54,086 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:25:54,321 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:25:54,345 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:25:54,349 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:25:54,350 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:25:54,350 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:25:54,351 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-27.i
[2024-11-03 13:25:55,765 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:25:55,972 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:25:55,973 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-27.i
[2024-11-03 13:25:55,980 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c378ca5/4776ea2063684398bc97b9b77b72f5f7/FLAG5d675d492
[2024-11-03 13:25:56,344 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1c378ca5/4776ea2063684398bc97b9b77b72f5f7
[2024-11-03 13:25:56,346 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:25:56,348 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:25:56,349 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:25:56,349 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:25:56,357 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:25:56,357 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,358 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbea0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56, skipping insertion in model container
[2024-11-03 13:25:56,358 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,390 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:25:56,540 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_amount50_file-27.i[915,928]
[2024-11-03 13:25:56,604 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:25:56,618 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:25:56,628 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_amount50_file-27.i[915,928]
[2024-11-03 13:25:56,649 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:25:56,669 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:25:56,670 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56 WrapperNode
[2024-11-03 13:25:56,670 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:25:56,671 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:25:56,671 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:25:56,671 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:25:56,677 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,686 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,710 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136
[2024-11-03 13:25:56,710 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:25:56,711 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:25:56,711 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:25:56,711 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:25:56,721 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,721 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,726 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,738 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].
[2024-11-03 13:25:56,738 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,738 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,756 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,760 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,762 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,765 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,768 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:25:56,769 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:25:56,769 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:25:56,770 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:25:56,773 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (1/1) ...
[2024-11-03 13:25:56,783 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:25:56,792 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:25:56,803 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)
[2024-11-03 13:25:56,805 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
[2024-11-03 13:25:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:25:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:25:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 13:25:56,826 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 13:25:56,826 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:25:56,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:25:56,893 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:25:56,895 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:26:00,176 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 13:26:00,176 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:26:00,191 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:26:00,191 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:26:00,191 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:26:00 BoogieIcfgContainer
[2024-11-03 13:26:00,191 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:26:00,193 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:26:00,193 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:26:00,196 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:26:00,196 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:25:56" (1/3) ...
[2024-11-03 13:26:00,197 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307286f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:26:00, skipping insertion in model container
[2024-11-03 13:26:00,197 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:25:56" (2/3) ...
[2024-11-03 13:26:00,197 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307286f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:26:00, skipping insertion in model container
[2024-11-03 13:26:00,197 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:26:00" (3/3) ...
[2024-11-03 13:26:00,198 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-27.i
[2024-11-03 13:26:00,243 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:26:00,244 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:26:00,292 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:26:00,298 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;@14a4ae3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:26:00,298 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:26:00,302 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:26:00,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-03 13:26:00,316 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:26:00,317 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:26:00,318 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:26:00,323 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:26:00,324 INFO  L85        PathProgramCache]: Analyzing trace with hash -1788795234, now seen corresponding path program 1 times
[2024-11-03 13:26:00,332 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:26:00,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024874434]
[2024-11-03 13:26:00,332 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:26:00,335 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:26:00,335 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:00,337 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:26:00,338 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:26:00,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:26:00,479 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:26:00,491 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:26:00,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:26:00,541 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:26:00,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2024-11-03 13:26:00,849 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:26:00,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024874434]
[2024-11-03 13:26:00,850 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2024874434] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:26:00,850 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:26:00,850 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:26:00,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78429836]
[2024-11-03 13:26:00,854 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:26:00,860 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:26:00,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:26:00,877 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:26:00,878 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:26:00,880 INFO  L87              Difference]: Start difference. First operand  has 64 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:26:00,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:26:00,906 INFO  L93              Difference]: Finished difference Result 121 states and 206 transitions.
[2024-11-03 13:26:00,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:26:00,909 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 129
[2024-11-03 13:26:00,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:26:00,918 INFO  L225             Difference]: With dead ends: 121
[2024-11-03 13:26:00,918 INFO  L226             Difference]: Without dead ends: 60
[2024-11-03 13:26:00,922 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:26:00,925 INFO  L432           NwaCegarLoop]: 89 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, 89 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
[2024-11-03 13:26:00,925 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:26:00,939 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2024-11-03 13:26:00,962 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2024-11-03 13:26:00,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 13:26:00,965 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions.
[2024-11-03 13:26:00,967 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 129
[2024-11-03 13:26:00,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:26:00,967 INFO  L471      AbstractCegarLoop]: Abstraction has 60 states and 89 transitions.
[2024-11-03 13:26:00,968 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:26:00,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions.
[2024-11-03 13:26:00,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-03 13:26:00,970 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:26:00,971 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:26:00,974 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:26:01,172 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:01,173 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:26:01,174 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:26:01,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 1907962006, now seen corresponding path program 1 times
[2024-11-03 13:26:01,174 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:26:01,174 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669978313]
[2024-11-03 13:26:01,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:26:01,175 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:26:01,175 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:01,176 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:26:01,177 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:26:01,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:26:01,286 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 13:26:01,294 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:26:02,135 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:26:02,135 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:26:02,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:26:02,614 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:26:02,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669978313]
[2024-11-03 13:26:02,614 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1669978313] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:26:02,614 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:26:02,614 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 13:26:02,615 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592204631]
[2024-11-03 13:26:02,615 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:26:02,616 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 13:26:02,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:26:02,618 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 13:26:02,618 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 13:26:02,618 INFO  L87              Difference]: Start difference. First operand 60 states and 89 transitions. Second operand  has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:26:04,134 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:26:04,214 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:26:04,214 INFO  L93              Difference]: Finished difference Result 174 states and 261 transitions.
[2024-11-03 13:26:04,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 13:26:04,243 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 129
[2024-11-03 13:26:04,245 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:26:04,248 INFO  L225             Difference]: With dead ends: 174
[2024-11-03 13:26:04,249 INFO  L226             Difference]: Without dead ends: 117
[2024-11-03 13:26:04,250 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 13:26:04,251 INFO  L432           NwaCegarLoop]: 85 mSDtfsCounter, 40 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-03 13:26:04,253 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 245 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-03 13:26:04,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 117 states.
[2024-11-03 13:26:04,291 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 113.
[2024-11-03 13:26:04,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 70 states have internal predecessors, (88), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 13:26:04,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 168 transitions.
[2024-11-03 13:26:04,298 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 168 transitions. Word has length 129
[2024-11-03 13:26:04,298 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:26:04,299 INFO  L471      AbstractCegarLoop]: Abstraction has 113 states and 168 transitions.
[2024-11-03 13:26:04,299 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)
[2024-11-03 13:26:04,299 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 168 transitions.
[2024-11-03 13:26:04,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-03 13:26:04,304 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:26:04,304 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:26:04,307 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:26:04,504 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:04,505 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:26:04,506 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:26:04,506 INFO  L85        PathProgramCache]: Analyzing trace with hash -7161895, now seen corresponding path program 1 times
[2024-11-03 13:26:04,506 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:26:04,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062697689]
[2024-11-03 13:26:04,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:26:04,507 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:26:04,507 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:04,508 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:26:04,509 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:26:04,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:26:04,597 INFO  L255         TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 13:26:04,601 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:26:05,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 397 proven. 30 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked.
[2024-11-03 13:26:05,128 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:26:05,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2024-11-03 13:26:05,458 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:26:05,458 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062697689]
[2024-11-03 13:26:05,458 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2062697689] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 13:26:05,459 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 13:26:05,459 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2024-11-03 13:26:05,459 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687698492]
[2024-11-03 13:26:05,459 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 13:26:05,460 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 13:26:05,460 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:26:05,461 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 13:26:05,461 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:26:05,461 INFO  L87              Difference]: Start difference. First operand 113 states and 168 transitions. Second operand  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:26:07,918 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:26:07,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:26:07,926 INFO  L93              Difference]: Finished difference Result 231 states and 339 transitions.
[2024-11-03 13:26:07,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 13:26:07,955 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 130
[2024-11-03 13:26:07,955 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:26:07,957 INFO  L225             Difference]: With dead ends: 231
[2024-11-03 13:26:07,957 INFO  L226             Difference]: Without dead ends: 121
[2024-11-03 13:26:07,958 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-03 13:26:07,959 INFO  L432           NwaCegarLoop]: 82 mSDtfsCounter, 53 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-03 13:26:07,960 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-03 13:26:07,962 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-03 13:26:07,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121.
[2024-11-03 13:26:07,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 76 states have internal predecessors, (92), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2024-11-03 13:26:07,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 172 transitions.
[2024-11-03 13:26:07,982 INFO  L78                 Accepts]: Start accepts. Automaton has 121 states and 172 transitions. Word has length 130
[2024-11-03 13:26:07,983 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:26:07,983 INFO  L471      AbstractCegarLoop]: Abstraction has 121 states and 172 transitions.
[2024-11-03 13:26:07,983 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2024-11-03 13:26:07,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 172 transitions.
[2024-11-03 13:26:07,985 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-03 13:26:07,985 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:26:07,985 INFO  L215           NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:26:07,990 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:26:08,186 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:08,187 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:26:08,187 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:26:08,188 INFO  L85        PathProgramCache]: Analyzing trace with hash -2051325310, now seen corresponding path program 1 times
[2024-11-03 13:26:08,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:26:08,188 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227261681]
[2024-11-03 13:26:08,188 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:26:08,188 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:26:08,189 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:26:08,190 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:26:08,191 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:26:08,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:26:08,327 INFO  L255         TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-03 13:26:08,338 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:26:23,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 358 proven. 72 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2024-11-03 13:26:23,035 INFO  L311         TraceCheckSpWp]: Computing backward predicates...