/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-97.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:27:19,712 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:27:19,793 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 12:27:19,797 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:27:19,798 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:27:19,831 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:27:19,831 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:27:19,832 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:27:19,833 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:27:19,834 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:27:19,834 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:27:19,835 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:27:19,837 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:27:19,837 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:27:19,837 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:27:19,838 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:27:19,838 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:27:19,838 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:27:19,839 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:27:19,839 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:27:19,839 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:27:19,844 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:27:19,844 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:27:19,844 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:27:19,844 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:27:19,845 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:27:19,845 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:27:19,845 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:27:19,845 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:27:19,846 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:27:19,846 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:27:19,846 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:27:19,846 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:27:19,847 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:27:19,847 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:27:19,848 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:27:19,848 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:27:19,848 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:27:19,848 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:27:19,848 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:27:19,849 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:27:19,849 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:27:19,849 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:27:19,849 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:27:19,850 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:27:20,115 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:27:20,139 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:27:20,142 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:27:20,144 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:27:20,145 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:27:20,147 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i
[2024-11-03 12:27:21,683 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:27:21,892 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:27:21,892 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i
[2024-11-03 12:27:21,902 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ebaf91c/7c844536bb334065b11a1c65633e466a/FLAG7368beef9
[2024-11-03 12:27:21,916 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ebaf91c/7c844536bb334065b11a1c65633e466a
[2024-11-03 12:27:21,920 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:27:21,921 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:27:21,923 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:27:21,923 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:27:21,928 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:27:21,929 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:27:21" (1/1) ...
[2024-11-03 12:27:21,930 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789e00f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:21, skipping insertion in model container
[2024-11-03 12:27:21,930 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:27:21" (1/1) ...
[2024-11-03 12:27:21,958 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:27:22,128 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-97.i[916,929]
[2024-11-03 12:27:22,170 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:27:22,185 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:27:22,201 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-97.i[916,929]
[2024-11-03 12:27:22,222 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:27:22,242 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:27:22,242 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22 WrapperNode
[2024-11-03 12:27:22,242 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:27:22,244 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:27:22,244 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:27:22,244 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:27:22,250 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,259 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,280 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111
[2024-11-03 12:27:22,281 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:27:22,282 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:27:22,282 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:27:22,282 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:27:22,292 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,293 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,296 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,318 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 12:27:22,319 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,319 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,326 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,328 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,330 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,331 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,335 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:27:22,336 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:27:22,336 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:27:22,336 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:27:22,337 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (1/1) ...
[2024-11-03 12:27:22,344 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:27:22,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:27:22,372 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 12:27:22,379 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 12:27:22,403 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:27:22,403 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:27:22,403 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:27:22,403 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:27:22,404 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:27:22,404 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:27:22,521 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:27:22,524 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:27:23,052 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-03 12:27:23,053 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:27:23,065 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:27:23,066 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:27:23,066 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:27:23 BoogieIcfgContainer
[2024-11-03 12:27:23,066 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:27:23,069 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:27:23,069 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:27:23,073 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:27:23,073 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:27:21" (1/3) ...
[2024-11-03 12:27:23,074 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f775b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:27:23, skipping insertion in model container
[2024-11-03 12:27:23,074 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:27:22" (2/3) ...
[2024-11-03 12:27:23,074 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2f775b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:27:23, skipping insertion in model container
[2024-11-03 12:27:23,074 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:27:23" (3/3) ...
[2024-11-03 12:27:23,076 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-97.i
[2024-11-03 12:27:23,092 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:27:23,093 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:27:23,149 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:27:23,156 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;@249eb32d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:27:23,156 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:27:23,160 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 12:27:23,173 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-03 12:27:23,173 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:27:23,174 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:23,175 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:27:23,179 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:27:23,180 INFO  L85        PathProgramCache]: Analyzing trace with hash 73183195, now seen corresponding path program 1 times
[2024-11-03 12:27:23,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:27:23,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582005777]
[2024-11-03 12:27:23,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:27:23,189 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:27:23,189 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:23,191 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 12:27:23,192 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:27:23,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:27:23,320 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:27:23,328 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:27:23,386 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 12:27:23,386 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:27:23,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-03 12:27:23,523 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:27:23,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582005777]
[2024-11-03 12:27:23,523 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [582005777] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:27:23,524 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:27:23,524 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:27:23,526 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563442964]
[2024-11-03 12:27:23,526 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:27:23,530 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:27:23,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:27:23,548 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:27:23,549 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:27:23,551 INFO  L87              Difference]: Start difference. First operand  has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 12:27:23,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:27:23,581 INFO  L93              Difference]: Finished difference Result 99 states and 172 transitions.
[2024-11-03 12:27:23,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:27:23,584 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 111
[2024-11-03 12:27:23,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:27:23,593 INFO  L225             Difference]: With dead ends: 99
[2024-11-03 12:27:23,594 INFO  L226             Difference]: Without dead ends: 49
[2024-11-03 12:27:23,597 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 220 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 12:27:23,600 INFO  L432           NwaCegarLoop]: 73 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, 73 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 12:27:23,600 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:27:23,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-03 12:27:23,644 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2024-11-03 12:27:23,646 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 12:27:23,647 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions.
[2024-11-03 12:27:23,649 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 111
[2024-11-03 12:27:23,649 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:27:23,650 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 73 transitions.
[2024-11-03 12:27:23,650 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 12:27:23,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions.
[2024-11-03 12:27:23,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-03 12:27:23,653 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:27:23,653 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:23,657 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:27:23,854 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:23,855 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:27:23,856 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:27:23,856 INFO  L85        PathProgramCache]: Analyzing trace with hash 753856795, now seen corresponding path program 1 times
[2024-11-03 12:27:23,856 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:27:23,857 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904630806]
[2024-11-03 12:27:23,857 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:27:23,857 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:27:23,857 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:23,860 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 12:27:23,862 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:27:23,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:27:23,977 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:27:23,988 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:27:24,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 12:27:24,084 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:27:24,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked.
[2024-11-03 12:27:24,203 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:27:24,207 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904630806]
[2024-11-03 12:27:24,207 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [904630806] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:27:24,207 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:27:24,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 12:27:24,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127216180]
[2024-11-03 12:27:24,208 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:27:24,210 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:27:24,210 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:27:24,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:27:24,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:27:24,212 INFO  L87              Difference]: Start difference. First operand 49 states and 73 transitions. Second operand  has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 12:27:25,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:27:25,092 INFO  L93              Difference]: Finished difference Result 182 states and 273 transitions.
[2024-11-03 12:27:25,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:27:25,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 111
[2024-11-03 12:27:25,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:27:25,098 INFO  L225             Difference]: With dead ends: 182
[2024-11-03 12:27:25,098 INFO  L226             Difference]: Without dead ends: 136
[2024-11-03 12:27:25,100 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:27:25,101 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-03 12:27:25,103 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 154 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-03 12:27:25,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2024-11-03 12:27:25,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 53.
[2024-11-03 12:27:25,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-03 12:27:25,132 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 78 transitions.
[2024-11-03 12:27:25,133 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 78 transitions. Word has length 111
[2024-11-03 12:27:25,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:27:25,136 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 78 transitions.
[2024-11-03 12:27:25,136 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)
[2024-11-03 12:27:25,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions.
[2024-11-03 12:27:25,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-03 12:27:25,139 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:27:25,140 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:25,143 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:27:25,340 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:25,341 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:27:25,342 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:27:25,342 INFO  L85        PathProgramCache]: Analyzing trace with hash -1021150567, now seen corresponding path program 1 times
[2024-11-03 12:27:25,342 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:27:25,343 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039011263]
[2024-11-03 12:27:25,343 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:27:25,343 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:27:25,343 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:25,345 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 12:27:25,346 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:27:25,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:27:25,434 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 12:27:25,442 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:27:26,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 350 proven. 48 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked.
[2024-11-03 12:27:26,151 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:27:26,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 96 proven. 48 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked.
[2024-11-03 12:27:26,653 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:27:26,653 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039011263]
[2024-11-03 12:27:26,654 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2039011263] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:27:26,654 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:27:26,654 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 24
[2024-11-03 12:27:26,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144997053]
[2024-11-03 12:27:26,654 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:27:26,655 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-03 12:27:26,655 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:27:26,656 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-03 12:27:26,657 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552
[2024-11-03 12:27:26,658 INFO  L87              Difference]: Start difference. First operand 53 states and 78 transitions. Second operand  has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 7 states have call successors, (25), 5 states have call predecessors, (25), 9 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26)
[2024-11-03 12:27:28,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:27:28,160 INFO  L93              Difference]: Finished difference Result 143 states and 201 transitions.
[2024-11-03 12:27:28,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2024-11-03 12:27:28,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 7 states have call successors, (25), 5 states have call predecessors, (25), 9 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 111
[2024-11-03 12:27:28,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:27:28,165 INFO  L225             Difference]: With dead ends: 143
[2024-11-03 12:27:28,165 INFO  L226             Difference]: Without dead ends: 93
[2024-11-03 12:27:28,169 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=545, Invalid=1347, Unknown=0, NotChecked=0, Total=1892
[2024-11-03 12:27:28,170 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 119 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:27:28,171 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 255 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-03 12:27:28,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2024-11-03 12:27:28,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81.
[2024-11-03 12:27:28,195 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 48 states have internal predecessors, (52), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-03 12:27:28,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions.
[2024-11-03 12:27:28,199 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 111
[2024-11-03 12:27:28,199 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:27:28,199 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 108 transitions.
[2024-11-03 12:27:28,200 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 7 states have call successors, (25), 5 states have call predecessors, (25), 9 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26)
[2024-11-03 12:27:28,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions.
[2024-11-03 12:27:28,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-03 12:27:28,201 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:27:28,201 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:28,208 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:27:28,405 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:28,406 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:27:28,407 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:27:28,407 INFO  L85        PathProgramCache]: Analyzing trace with hash 1489236011, now seen corresponding path program 1 times
[2024-11-03 12:27:28,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:27:28,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713972927]
[2024-11-03 12:27:28,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:27:28,412 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:27:28,412 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:27:28,415 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 12:27:28,416 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:27:28,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:27:28,478 INFO  L255         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-11-03 12:27:28,485 INFO  L278         TraceCheckSpWp]: Computing forward predicates...