/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_has-floats_file-37.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:07:56,507 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:07:56,588 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 12:07:56,594 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:07:56,595 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:07:56,628 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:07:56,629 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:07:56,630 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:07:56,631 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:07:56,631 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:07:56,631 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:07:56,632 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:07:56,633 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:07:56,634 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:07:56,635 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:07:56,635 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:07:56,635 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:07:56,635 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:07:56,636 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:07:56,636 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:07:56,636 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:07:56,641 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:07:56,641 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:07:56,641 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:07:56,641 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:07:56,642 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:07:56,642 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:07:56,642 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:07:56,642 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:07:56,643 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:07:56,643 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:07:56,643 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:07:56,643 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:07:56,644 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:07:56,644 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:07:56,644 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:07:56,644 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:07:56,645 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:07:56,645 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:07:56,645 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:07:56,645 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:07:56,646 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:07:56,646 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:07:56,646 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:07:56,646 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:07:56,889 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:07:56,917 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:07:56,921 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:07:56,922 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:07:56,923 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:07:56,924 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-37.i
[2024-11-03 12:07:58,565 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:07:58,786 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:07:58,787 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-37.i
[2024-11-03 12:07:58,799 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ccce9d1/9838fe6502eb428db02408a857633118/FLAG5eb978986
[2024-11-03 12:07:58,816 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ccce9d1/9838fe6502eb428db02408a857633118
[2024-11-03 12:07:58,820 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:07:58,822 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:07:58,825 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:07:58,826 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:07:58,831 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:07:58,831 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:07:58" (1/1) ...
[2024-11-03 12:07:58,832 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cfc435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:58, skipping insertion in model container
[2024-11-03 12:07:58,833 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:07:58" (1/1) ...
[2024-11-03 12:07:58,864 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:07:59,050 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_has-floats_file-37.i[917,930]
[2024-11-03 12:07:59,095 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:07:59,108 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:07:59,125 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_has-floats_file-37.i[917,930]
[2024-11-03 12:07:59,143 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:07:59,164 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:07:59,165 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59 WrapperNode
[2024-11-03 12:07:59,165 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:07:59,166 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:07:59,167 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:07:59,167 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:07:59,176 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,187 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,207 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102
[2024-11-03 12:07:59,211 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:07:59,212 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:07:59,212 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:07:59,213 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:07:59,225 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,226 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,233 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,255 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 12:07:59,255 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,256 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,270 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,278 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,280 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,287 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,298 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:07:59,300 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:07:59,300 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:07:59,300 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:07:59,301 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (1/1) ...
[2024-11-03 12:07:59,310 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:07:59,323 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:07:59,345 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 12:07:59,357 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 12:07:59,387 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:07:59,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:07:59,388 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:07:59,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:07:59,388 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:07:59,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:07:59,510 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:07:59,512 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:07:59,815 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 12:07:59,816 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:07:59,837 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:07:59,837 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:07:59,838 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:07:59 BoogieIcfgContainer
[2024-11-03 12:07:59,839 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:07:59,843 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:07:59,843 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:07:59,847 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:07:59,847 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:07:58" (1/3) ...
[2024-11-03 12:07:59,848 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20007007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:07:59, skipping insertion in model container
[2024-11-03 12:07:59,848 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:07:59" (2/3) ...
[2024-11-03 12:07:59,849 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20007007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:07:59, skipping insertion in model container
[2024-11-03 12:07:59,849 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:07:59" (3/3) ...
[2024-11-03 12:07:59,850 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-37.i
[2024-11-03 12:07:59,871 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:07:59,872 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:07:59,926 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:07:59,933 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;@8c542ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:07:59,934 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:07:59,938 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:07:59,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-03 12:07:59,947 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:07:59,948 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:07:59,949 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:07:59,954 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:07:59,954 INFO  L85        PathProgramCache]: Analyzing trace with hash 893252525, now seen corresponding path program 1 times
[2024-11-03 12:07:59,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:07:59,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920460656]
[2024-11-03 12:07:59,963 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:07:59,965 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:07:59,965 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:07:59,967 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 12:07:59,969 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:08:00,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:08:00,065 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:08:00,072 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:08:00,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-03 12:08:00,110 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:08:00,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-03 12:08:00,228 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:08:00,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920460656]
[2024-11-03 12:08:00,231 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1920460656] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:08:00,231 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:08:00,231 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:08:00,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533291974]
[2024-11-03 12:08:00,234 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:08:00,239 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:08:00,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:08:00,263 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:08:00,264 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:08:00,266 INFO  L87              Difference]: Start difference. First operand  has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:08:00,289 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:08:00,290 INFO  L93              Difference]: Finished difference Result 89 states and 147 transitions.
[2024-11-03 12:08:00,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:08:00,292 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97
[2024-11-03 12:08:00,293 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:08:00,302 INFO  L225             Difference]: With dead ends: 89
[2024-11-03 12:08:00,303 INFO  L226             Difference]: Without dead ends: 44
[2024-11-03 12:08:00,308 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 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 12:08:00,314 INFO  L432           NwaCegarLoop]: 62 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, 62 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 12:08:00,316 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:08:00,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-03 12:08:00,360 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2024-11-03 12:08:00,362 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:08:00,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions.
[2024-11-03 12:08:00,369 INFO  L78                 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97
[2024-11-03 12:08:00,370 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:08:00,370 INFO  L471      AbstractCegarLoop]: Abstraction has 44 states and 62 transitions.
[2024-11-03 12:08:00,372 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:08:00,372 INFO  L276                IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions.
[2024-11-03 12:08:00,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-03 12:08:00,378 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:08:00,378 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:00,385 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:08:00,579 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:00,580 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:08:00,581 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:08:00,581 INFO  L85        PathProgramCache]: Analyzing trace with hash -664290645, now seen corresponding path program 1 times
[2024-11-03 12:08:00,581 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:08:00,582 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663597204]
[2024-11-03 12:08:00,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:08:00,584 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:08:00,586 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:00,588 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 12:08:00,592 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:08:00,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:08:00,724 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 12:08:00,730 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:08:01,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked.
[2024-11-03 12:08:01,285 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:08:02,263 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 66 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked.
[2024-11-03 12:08:02,264 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:08:02,264 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663597204]
[2024-11-03 12:08:02,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [663597204] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:08:02,266 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:08:02,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2024-11-03 12:08:02,305 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612067782]
[2024-11-03 12:08:02,305 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:08:02,307 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-03 12:08:02,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:08:02,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-03 12:08:02,312 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240
[2024-11-03 12:08:02,312 INFO  L87              Difference]: Start difference. First operand 44 states and 62 transitions. Second operand  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30)
[2024-11-03 12:08:02,783 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:08:02,784 INFO  L93              Difference]: Finished difference Result 97 states and 131 transitions.
[2024-11-03 12:08:02,786 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-03 12:08:02,786 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 97
[2024-11-03 12:08:02,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:08:02,789 INFO  L225             Difference]: With dead ends: 97
[2024-11-03 12:08:02,789 INFO  L226             Difference]: Without dead ends: 56
[2024-11-03 12:08:02,790 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420
[2024-11-03 12:08:02,793 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-03 12:08:02,793 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 130 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-03 12:08:02,795 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-03 12:08:02,807 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52.
[2024-11-03 12:08:02,808 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:08:02,809 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions.
[2024-11-03 12:08:02,809 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 97
[2024-11-03 12:08:02,809 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:08:02,810 INFO  L471      AbstractCegarLoop]: Abstraction has 52 states and 67 transitions.
[2024-11-03 12:08:02,810 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (29), 3 states have call predecessors, (29), 7 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30)
[2024-11-03 12:08:02,810 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions.
[2024-11-03 12:08:02,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-03 12:08:02,811 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:08:02,812 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:02,817 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 12:08:03,012 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:03,013 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:08:03,013 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:08:03,013 INFO  L85        PathProgramCache]: Analyzing trace with hash 15767725, now seen corresponding path program 1 times
[2024-11-03 12:08:03,014 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:08:03,018 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927068873]
[2024-11-03 12:08:03,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:08:03,019 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:08:03,019 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:03,021 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 12:08:03,022 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:08:03,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:08:03,076 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 12:08:03,080 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:08:03,829 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 222 proven. 102 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2024-11-03 12:08:03,830 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:08:11,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 21 proven. 96 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked.
[2024-11-03 12:08:11,224 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:08:11,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927068873]
[2024-11-03 12:08:11,225 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [927068873] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:08:11,225 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:08:11,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 27
[2024-11-03 12:08:11,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343084486]
[2024-11-03 12:08:11,225 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:08:11,226 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-03 12:08:11,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:08:11,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-03 12:08:11,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702
[2024-11-03 12:08:11,228 INFO  L87              Difference]: Start difference. First operand 52 states and 67 transitions. Second operand  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (29), 5 states have call predecessors, (29), 11 states have return successors, (30), 7 states have call predecessors, (30), 8 states have call successors, (30)
[2024-11-03 12:08:14,274 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:08:14,274 INFO  L93              Difference]: Finished difference Result 117 states and 145 transitions.
[2024-11-03 12:08:14,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-03 12:08:14,281 INFO  L78                 Accepts]: Start accepts. Automaton has  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (29), 5 states have call predecessors, (29), 11 states have return successors, (30), 7 states have call predecessors, (30), 8 states have call successors, (30) Word has length 97
[2024-11-03 12:08:14,282 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:08:14,283 INFO  L225             Difference]: With dead ends: 117
[2024-11-03 12:08:14,283 INFO  L226             Difference]: Without dead ends: 68
[2024-11-03 12:08:14,284 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 166 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=415, Invalid=917, Unknown=0, NotChecked=0, Total=1332
[2024-11-03 12:08:14,285 INFO  L432           NwaCegarLoop]: 43 mSDtfsCounter, 70 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:08:14,285 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 186 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-03 12:08:14,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-03 12:08:14,303 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 60.
[2024-11-03 12:08:14,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:08:14,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions.
[2024-11-03 12:08:14,307 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 97
[2024-11-03 12:08:14,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:08:14,308 INFO  L471      AbstractCegarLoop]: Abstraction has 60 states and 72 transitions.
[2024-11-03 12:08:14,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 27 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 8 states have call successors, (29), 5 states have call predecessors, (29), 11 states have return successors, (30), 7 states have call predecessors, (30), 8 states have call successors, (30)
[2024-11-03 12:08:14,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions.
[2024-11-03 12:08:14,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-03 12:08:14,312 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:08:14,312 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:08:14,321 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:08:14,513 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:14,515 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:08:14,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:08:14,520 INFO  L85        PathProgramCache]: Analyzing trace with hash 1790775087, now seen corresponding path program 1 times
[2024-11-03 12:08:14,520 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:08:14,520 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148195221]
[2024-11-03 12:08:14,520 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:08:14,521 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:08:14,521 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:08:14,522 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 12:08:14,524 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:08:14,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:08:14,608 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-03 12:08:14,619 INFO  L278         TraceCheckSpWp]: Computing forward predicates...