/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_floatingpointinfluence_no-floats_file-90.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:26:36,658 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:26:36,740 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 12:26:36,747 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:26:36,747 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:26:36,772 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:26:36,773 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:26:36,773 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:26:36,773 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:26:36,774 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:26:36,774 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:26:36,774 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:26:36,775 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:26:36,775 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:26:36,776 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:26:36,776 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:26:36,778 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:26:36,781 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:26:36,781 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:26:36,781 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:26:36,781 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:26:36,782 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:26:36,782 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:26:36,782 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:26:36,782 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:26:36,783 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:26:36,783 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:26:36,783 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:26:36,783 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:26:36,784 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:26:36,785 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:26:36,785 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:26:36,785 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:26:36,785 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:26:36,785 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:26:36,786 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:26:36,786 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:26:36,786 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:26:36,786 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:26:36,787 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:26:36,787 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:26:36,788 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:26:36,788 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:26:36,788 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:26:36,788 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:26:37,038 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:26:37,062 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:26:37,065 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:26:37,066 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:26:37,067 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:26:37,068 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-90.i
[2024-11-03 12:26:38,527 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:26:38,745 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:26:38,745 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-90.i
[2024-11-03 12:26:38,758 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3698166/b48c5b04998a4015b8d336abef74cde7/FLAG84a999a20
[2024-11-03 12:26:38,778 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b3698166/b48c5b04998a4015b8d336abef74cde7
[2024-11-03 12:26:38,781 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:26:38,782 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:26:38,784 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:26:38,784 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:26:38,791 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:26:38,792 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:26:38" (1/1) ...
[2024-11-03 12:26:38,793 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264462a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:38, skipping insertion in model container
[2024-11-03 12:26:38,794 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:26:38" (1/1) ...
[2024-11-03 12:26:38,822 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:26:39,015 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_floatingpointinfluence_no-floats_file-90.i[916,929]
[2024-11-03 12:26:39,074 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:26:39,097 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:26:39,111 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_floatingpointinfluence_no-floats_file-90.i[916,929]
[2024-11-03 12:26:39,145 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:26:39,170 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:26:39,171 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39 WrapperNode
[2024-11-03 12:26:39,171 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:26:39,172 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:26:39,172 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:26:39,172 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:26:39,181 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,200 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,227 INFO  L138                Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123
[2024-11-03 12:26:39,227 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:26:39,230 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:26:39,230 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:26:39,230 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:26:39,240 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,241 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,244 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,254 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 12:26:39,255 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,255 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,263 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,266 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,268 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,269 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,272 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:26:39,273 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:26:39,273 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:26:39,273 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:26:39,274 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (1/1) ...
[2024-11-03 12:26:39,282 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:26:39,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:26:39,309 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 12:26:39,310 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 12:26:39,330 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:26:39,330 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:26:39,330 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:26:39,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:26:39,330 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:26:39,330 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:26:39,400 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:26:39,402 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:26:39,648 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 12:26:39,648 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:26:39,667 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:26:39,668 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:26:39,668 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:26:39 BoogieIcfgContainer
[2024-11-03 12:26:39,668 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:26:39,673 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:26:39,673 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:26:39,676 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:26:39,677 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:26:38" (1/3) ...
[2024-11-03 12:26:39,678 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db212bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:26:39, skipping insertion in model container
[2024-11-03 12:26:39,678 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:26:39" (2/3) ...
[2024-11-03 12:26:39,679 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db212bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:26:39, skipping insertion in model container
[2024-11-03 12:26:39,679 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:26:39" (3/3) ...
[2024-11-03 12:26:39,680 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-90.i
[2024-11-03 12:26:39,700 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:26:39,701 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:26:39,770 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:26:39,776 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;@18bc20be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:26:39,776 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:26:39,782 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 57 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 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 12:26:39,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-03 12:26:39,815 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:26:39,816 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]
[2024-11-03 12:26:39,816 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:26:39,822 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:26:39,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 1039288057, now seen corresponding path program 1 times
[2024-11-03 12:26:39,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:26:39,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283887584]
[2024-11-03 12:26:39,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:26:39,835 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:26:39,836 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:39,838 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 12:26:39,840 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:26:39,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:26:39,992 INFO  L255         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:26:40,001 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:26:40,051 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 12:26:40,051 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:26:40,165 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 12:26:40,166 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:26:40,166 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283887584]
[2024-11-03 12:26:40,166 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1283887584] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:26:40,167 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:26:40,167 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:26:40,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565288497]
[2024-11-03 12:26:40,169 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:26:40,173 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:26:40,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:26:40,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:26:40,199 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:26:40,202 INFO  L87              Difference]: Start difference. First operand  has 57 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 35 states have internal predecessors, (46), 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 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 12:26:40,232 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:26:40,233 INFO  L93              Difference]: Finished difference Result 107 states and 186 transitions.
[2024-11-03 12:26:40,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:26:40,236 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 124
[2024-11-03 12:26:40,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:26:40,245 INFO  L225             Difference]: With dead ends: 107
[2024-11-03 12:26:40,246 INFO  L226             Difference]: Without dead ends: 53
[2024-11-03 12:26:40,250 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 246 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 12:26:40,254 INFO  L432           NwaCegarLoop]: 79 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, 79 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 12:26:40,255 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:26:40,270 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-03 12:26:40,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-03 12:26:40,301 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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 12:26:40,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions.
[2024-11-03 12:26:40,305 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 79 transitions. Word has length 124
[2024-11-03 12:26:40,306 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:26:40,306 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 79 transitions.
[2024-11-03 12:26:40,306 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 12:26:40,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions.
[2024-11-03 12:26:40,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-03 12:26:40,310 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:26:40,311 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]
[2024-11-03 12:26:40,313 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:26:40,512 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:40,512 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:26:40,513 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:26:40,513 INFO  L85        PathProgramCache]: Analyzing trace with hash 1080942329, now seen corresponding path program 1 times
[2024-11-03 12:26:40,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:26:40,514 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788841309]
[2024-11-03 12:26:40,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:26:40,514 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:26:40,515 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:40,517 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 12:26:40,519 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:26:40,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:26:40,605 INFO  L255         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 12:26:40,613 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:26:41,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 468 proven. 54 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked.
[2024-11-03 12:26:41,058 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:26:41,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 57 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked.
[2024-11-03 12:26:41,416 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:26:41,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788841309]
[2024-11-03 12:26:41,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1788841309] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:26:41,416 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:26:41,417 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15
[2024-11-03 12:26:41,417 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87026270]
[2024-11-03 12:26:41,417 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:26:41,421 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-03 12:26:41,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:26:41,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-03 12:26:41,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210
[2024-11-03 12:26:41,423 INFO  L87              Difference]: Start difference. First operand 53 states and 79 transitions. Second operand  has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32)
[2024-11-03 12:26:41,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:26:41,979 INFO  L93              Difference]: Finished difference Result 121 states and 170 transitions.
[2024-11-03 12:26:41,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-03 12:26:41,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 124
[2024-11-03 12:26:41,983 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:26:41,984 INFO  L225             Difference]: With dead ends: 121
[2024-11-03 12:26:41,984 INFO  L226             Difference]: Without dead ends: 71
[2024-11-03 12:26:41,986 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=400, Unknown=0, NotChecked=0, Total=600
[2024-11-03 12:26:41,987 INFO  L432           NwaCegarLoop]: 47 mSDtfsCounter, 108 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:26:41,987 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 161 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-03 12:26:41,988 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2024-11-03 12:26:42,005 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65.
[2024-11-03 12:26:42,006 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 65 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 12:26:42,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 87 transitions.
[2024-11-03 12:26:42,008 INFO  L78                 Accepts]: Start accepts. Automaton has 65 states and 87 transitions. Word has length 124
[2024-11-03 12:26:42,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:26:42,008 INFO  L471      AbstractCegarLoop]: Abstraction has 65 states and 87 transitions.
[2024-11-03 12:26:42,009 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (31), 3 states have call predecessors, (31), 7 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32)
[2024-11-03 12:26:42,009 INFO  L276                IsEmpty]: Start isEmpty. Operand 65 states and 87 transitions.
[2024-11-03 12:26:42,013 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 12:26:42,013 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:26:42,013 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]
[2024-11-03 12:26:42,017 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:26:42,214 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:42,214 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:26:42,215 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:26:42,215 INFO  L85        PathProgramCache]: Analyzing trace with hash 1163479113, now seen corresponding path program 1 times
[2024-11-03 12:26:42,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:26:42,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920630707]
[2024-11-03 12:26:42,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:26:42,216 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:26:42,216 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:42,218 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 12:26:42,218 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:26:42,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:26:42,290 INFO  L255         TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 12:26:42,301 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:26:42,597 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 303 proven. 18 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked.
[2024-11-03 12:26:42,598 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:26:42,945 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 135 proven. 27 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked.
[2024-11-03 12:26:42,945 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:26:42,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920630707]
[2024-11-03 12:26:42,946 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1920630707] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:26:42,946 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:26:42,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19
[2024-11-03 12:26:42,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011198917]
[2024-11-03 12:26:42,947 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:26:42,948 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-03 12:26:42,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:26:42,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-03 12:26:42,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342
[2024-11-03 12:26:42,950 INFO  L87              Difference]: Start difference. First operand 65 states and 87 transitions. Second operand  has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 5 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25)
[2024-11-03 12:26:43,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:26:43,795 INFO  L93              Difference]: Finished difference Result 229 states and 289 transitions.
[2024-11-03 12:26:43,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. 
[2024-11-03 12:26:43,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 5 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 125
[2024-11-03 12:26:43,797 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:26:43,800 INFO  L225             Difference]: With dead ends: 229
[2024-11-03 12:26:43,800 INFO  L226             Difference]: Without dead ends: 167
[2024-11-03 12:26:43,801 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=510, Invalid=1212, Unknown=0, NotChecked=0, Total=1722
[2024-11-03 12:26:43,803 INFO  L432           NwaCegarLoop]: 51 mSDtfsCounter, 170 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-03 12:26:43,804 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 218 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-03 12:26:43,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2024-11-03 12:26:43,833 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 79.
[2024-11-03 12:26:43,833 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 51 states have internal predecessors, (58), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2024-11-03 12:26:43,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions.
[2024-11-03 12:26:43,836 INFO  L78                 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 125
[2024-11-03 12:26:43,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:26:43,837 INFO  L471      AbstractCegarLoop]: Abstraction has 79 states and 98 transitions.
[2024-11-03 12:26:43,837 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 5 states have call successors, (24), 4 states have call predecessors, (24), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25)
[2024-11-03 12:26:43,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions.
[2024-11-03 12:26:43,841 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-03 12:26:43,841 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:26:43,842 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]
[2024-11-03 12:26:43,847 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:26:44,042 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:44,043 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:26:44,044 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:26:44,044 INFO  L85        PathProgramCache]: Analyzing trace with hash 1165326155, now seen corresponding path program 1 times
[2024-11-03 12:26:44,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:26:44,045 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563331645]
[2024-11-03 12:26:44,045 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:26:44,045 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:26:44,045 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:26:44,047 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 12:26:44,051 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:26:44,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:26:44,120 INFO  L255         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-03 12:26:44,127 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:26:53,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 760 backedges. 303 proven. 18 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked.
[2024-11-03 12:26:53,343 INFO  L311         TraceCheckSpWp]: Computing backward predicates...