/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:33:52,091 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:33:52,144 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 12:33:52,149 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:33:52,150 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:33:52,169 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:33:52,169 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:33:52,170 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:33:52,172 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:33:52,174 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:33:52,174 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:33:52,175 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:33:52,175 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:33:52,175 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:33:52,175 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:33:52,176 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:33:52,176 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:33:52,176 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:33:52,176 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:33:52,176 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:33:52,176 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:33:52,178 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:33:52,179 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:33:52,179 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:33:52,179 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:33:52,180 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:33:52,180 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:33:52,180 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:33:52,181 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:33:52,182 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:33:52,377 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:33:52,397 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:33:52,401 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:33:52,401 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:33:52,402 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:33:52,403 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i
[2024-11-03 12:33:53,676 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:33:53,863 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:33:53,863 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i
[2024-11-03 12:33:53,878 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce1441236/6dca9f380f43441493b72e6fb7403bcb/FLAGf30041bf0
[2024-11-03 12:33:54,235 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce1441236/6dca9f380f43441493b72e6fb7403bcb
[2024-11-03 12:33:54,237 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:33:54,238 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:33:54,239 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:33:54,239 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:33:54,244 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:33:54,245 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,246 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37697157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54, skipping insertion in model container
[2024-11-03 12:33:54,246 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,270 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:33:54,413 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i[916,929]
[2024-11-03 12:33:54,486 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:33:54,503 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:33:54,512 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-54.i[916,929]
[2024-11-03 12:33:54,548 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:33:54,566 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:33:54,566 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54 WrapperNode
[2024-11-03 12:33:54,567 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:33:54,567 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:33:54,568 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:33:54,568 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:33:54,573 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,584 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,612 INFO  L138                Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246
[2024-11-03 12:33:54,612 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:33:54,613 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:33:54,613 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:33:54,615 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:33:54,625 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,626 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,634 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,650 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 12:33:54,650 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,650 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,667 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,675 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,677 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,680 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,683 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:33:54,684 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:33:54,684 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:33:54,684 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:33:54,685 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (1/1) ...
[2024-11-03 12:33:54,693 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:33:54,702 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:33:54,715 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 12:33:54,720 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 12:33:54,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:33:54,740 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:33:54,740 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:33:54,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:33:54,741 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:33:54,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:33:54,839 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:33:54,841 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:33:56,278 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-03 12:33:56,278 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:33:56,295 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:33:56,296 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:33:56,296 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:33:56 BoogieIcfgContainer
[2024-11-03 12:33:56,296 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:33:56,298 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:33:56,298 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:33:56,301 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:33:56,301 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:33:54" (1/3) ...
[2024-11-03 12:33:56,301 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7e615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:33:56, skipping insertion in model container
[2024-11-03 12:33:56,302 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:54" (2/3) ...
[2024-11-03 12:33:56,302 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7e615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:33:56, skipping insertion in model container
[2024-11-03 12:33:56,302 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:33:56" (3/3) ...
[2024-11-03 12:33:56,303 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-54.i
[2024-11-03 12:33:56,316 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:33:56,317 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:33:56,365 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:33:56,370 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;@3ab0cfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:33:56,370 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:33:56,374 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 113 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-03 12:33:56,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 270
[2024-11-03 12:33:56,391 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:33:56,391 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:56,392 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:33:56,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:33:56,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -1763384431, now seen corresponding path program 1 times
[2024-11-03 12:33:56,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:33:56,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434777711]
[2024-11-03 12:33:56,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:33:56,407 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:33:56,407 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:56,421 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 12:33:56,423 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:33:56,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:33:56,618 INFO  L255         TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:33:56,635 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:33:56,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-03 12:33:56,702 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:33:56,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-03 12:33:56,952 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:33:56,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434777711]
[2024-11-03 12:33:56,953 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1434777711] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:33:56,953 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:33:56,953 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:33:56,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92981131]
[2024-11-03 12:33:56,956 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:33:56,960 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:33:56,960 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:33:56,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:33:56,981 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:33:56,984 INFO  L87              Difference]: Start difference. First operand  has 113 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2024-11-03 12:33:57,024 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:33:57,024 INFO  L93              Difference]: Finished difference Result 219 states and 398 transitions.
[2024-11-03 12:33:57,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:33:57,028 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 269
[2024-11-03 12:33:57,032 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:33:57,042 INFO  L225             Difference]: With dead ends: 219
[2024-11-03 12:33:57,042 INFO  L226             Difference]: Without dead ends: 109
[2024-11-03 12:33:57,046 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 536 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 12:33:57,049 INFO  L432           NwaCegarLoop]: 172 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, 172 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 12:33:57,051 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:33:57,066 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2024-11-03 12:33:57,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109.
[2024-11-03 12:33:57,093 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 109 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 63 states have internal predecessors, (84), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-03 12:33:57,097 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 172 transitions.
[2024-11-03 12:33:57,099 INFO  L78                 Accepts]: Start accepts. Automaton has 109 states and 172 transitions. Word has length 269
[2024-11-03 12:33:57,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:33:57,101 INFO  L471      AbstractCegarLoop]: Abstraction has 109 states and 172 transitions.
[2024-11-03 12:33:57,101 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2024-11-03 12:33:57,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 172 transitions.
[2024-11-03 12:33:57,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 271
[2024-11-03 12:33:57,106 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:33:57,106 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:57,112 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:33:57,306 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:57,307 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:33:57,308 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:33:57,308 INFO  L85        PathProgramCache]: Analyzing trace with hash 935944368, now seen corresponding path program 1 times
[2024-11-03 12:33:57,308 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:33:57,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23742966]
[2024-11-03 12:33:57,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:33:57,308 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:33:57,309 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:57,310 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 12:33:57,312 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:33:57,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:33:57,450 INFO  L255         TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-03 12:33:57,462 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:33:58,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 2025 proven. 204 refuted. 0 times theorem prover too weak. 1555 trivial. 0 not checked.
[2024-11-03 12:33:58,918 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:33:59,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 114 proven. 141 refuted. 0 times theorem prover too weak. 3529 trivial. 0 not checked.
[2024-11-03 12:33:59,609 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:33:59,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [23742966]
[2024-11-03 12:33:59,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [23742966] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:33:59,610 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:33:59,610 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18
[2024-11-03 12:33:59,610 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741273649]
[2024-11-03 12:33:59,610 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:33:59,612 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-03 12:33:59,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:33:59,613 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-03 12:33:59,613 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306
[2024-11-03 12:33:59,614 INFO  L87              Difference]: Start difference. First operand 109 states and 172 transitions. Second operand  has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 5 states have call successors, (69), 4 states have call predecessors, (69), 8 states have return successors, (70), 5 states have call predecessors, (70), 5 states have call successors, (70)
[2024-11-03 12:34:03,610 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:34:03,611 INFO  L93              Difference]: Finished difference Result 510 states and 772 transitions.
[2024-11-03 12:34:03,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. 
[2024-11-03 12:34:03,611 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 5 states have call successors, (69), 4 states have call predecessors, (69), 8 states have return successors, (70), 5 states have call predecessors, (70), 5 states have call successors, (70) Word has length 270
[2024-11-03 12:34:03,612 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:34:03,619 INFO  L225             Difference]: With dead ends: 510
[2024-11-03 12:34:03,619 INFO  L226             Difference]: Without dead ends: 404
[2024-11-03 12:34:03,625 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 526 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=847, Invalid=2575, Unknown=0, NotChecked=0, Total=3422
[2024-11-03 12:34:03,626 INFO  L432           NwaCegarLoop]: 211 mSDtfsCounter, 474 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:34:03,627 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 779 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-11-03 12:34:03,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 404 states.
[2024-11-03 12:34:03,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 380.
[2024-11-03 12:34:03,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 380 states, 217 states have (on average 1.2534562211981566) internal successors, (272), 218 states have internal predecessors, (272), 150 states have call successors, (150), 12 states have call predecessors, (150), 12 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150)
[2024-11-03 12:34:03,710 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 572 transitions.
[2024-11-03 12:34:03,711 INFO  L78                 Accepts]: Start accepts. Automaton has 380 states and 572 transitions. Word has length 270
[2024-11-03 12:34:03,712 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:34:03,712 INFO  L471      AbstractCegarLoop]: Abstraction has 380 states and 572 transitions.
[2024-11-03 12:34:03,713 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 5 states have call successors, (69), 4 states have call predecessors, (69), 8 states have return successors, (70), 5 states have call predecessors, (70), 5 states have call successors, (70)
[2024-11-03 12:34:03,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 380 states and 572 transitions.
[2024-11-03 12:34:03,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 272
[2024-11-03 12:34:03,717 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:34:03,717 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:03,726 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:34:03,920 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:03,920 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:34:03,921 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:34:03,921 INFO  L85        PathProgramCache]: Analyzing trace with hash 2119472895, now seen corresponding path program 1 times
[2024-11-03 12:34:03,921 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:34:03,921 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853429996]
[2024-11-03 12:34:03,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:34:03,922 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:34:03,922 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:03,923 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 12:34:03,924 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:34:04,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:34:04,032 INFO  L255         TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:34:04,037 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:04,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 1929 proven. 60 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked.
[2024-11-03 12:34:04,266 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:34:04,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 69 proven. 60 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked.
[2024-11-03 12:34:04,550 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:34:04,550 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853429996]
[2024-11-03 12:34:04,550 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1853429996] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:34:04,550 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:34:04,550 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-03 12:34:04,550 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079692887]
[2024-11-03 12:34:04,550 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:34:04,551 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 12:34:04,551 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:34:04,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 12:34:04,552 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:34:04,552 INFO  L87              Difference]: Start difference. First operand 380 states and 572 transitions. Second operand  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65)
[2024-11-03 12:34:07,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:34:07,094 INFO  L93              Difference]: Finished difference Result 1130 states and 1658 transitions.
[2024-11-03 12:34:07,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-03 12:34:07,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 271
[2024-11-03 12:34:07,096 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:34:07,103 INFO  L225             Difference]: With dead ends: 1130
[2024-11-03 12:34:07,103 INFO  L226             Difference]: Without dead ends: 781
[2024-11-03 12:34:07,105 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 534 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342
[2024-11-03 12:34:07,106 INFO  L432           NwaCegarLoop]: 202 mSDtfsCounter, 269 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-03 12:34:07,106 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 539 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-03 12:34:07,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 781 states.
[2024-11-03 12:34:07,172 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 729.
[2024-11-03 12:34:07,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 729 states, 416 states have (on average 1.2019230769230769) internal successors, (500), 417 states have internal predecessors, (500), 282 states have call successors, (282), 30 states have call predecessors, (282), 30 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282)
[2024-11-03 12:34:07,178 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1064 transitions.
[2024-11-03 12:34:07,180 INFO  L78                 Accepts]: Start accepts. Automaton has 729 states and 1064 transitions. Word has length 271
[2024-11-03 12:34:07,180 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:34:07,180 INFO  L471      AbstractCegarLoop]: Abstraction has 729 states and 1064 transitions.
[2024-11-03 12:34:07,181 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65)
[2024-11-03 12:34:07,181 INFO  L276                IsEmpty]: Start isEmpty. Operand 729 states and 1064 transitions.
[2024-11-03 12:34:07,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 272
[2024-11-03 12:34:07,183 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:34:07,183 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:07,190 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:34:07,387 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:07,388 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:34:07,389 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:34:07,389 INFO  L85        PathProgramCache]: Analyzing trace with hash -1998580741, now seen corresponding path program 1 times
[2024-11-03 12:34:07,389 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:34:07,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854334950]
[2024-11-03 12:34:07,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:34:07,389 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:34:07,390 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:07,391 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 12:34:07,393 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:34:07,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:34:07,472 INFO  L255         TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:34:07,476 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:07,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-03 12:34:07,841 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:34:08,229 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-03 12:34:08,229 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:34:08,229 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854334950]
[2024-11-03 12:34:08,230 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1854334950] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:34:08,232 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:34:08,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2024-11-03 12:34:08,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399407746]
[2024-11-03 12:34:08,233 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:34:08,233 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:34:08,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:34:08,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:34:08,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:34:08,235 INFO  L87              Difference]: Start difference. First operand 729 states and 1064 transitions. Second operand  has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:34:08,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:34:08,828 INFO  L93              Difference]: Finished difference Result 1427 states and 2079 transitions.
[2024-11-03 12:34:08,844 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:34:08,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 271
[2024-11-03 12:34:08,845 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:34:08,850 INFO  L225             Difference]: With dead ends: 1427
[2024-11-03 12:34:08,851 INFO  L226             Difference]: Without dead ends: 729
[2024-11-03 12:34:08,853 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 538 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 12:34:08,854 INFO  L432           NwaCegarLoop]: 165 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-03 12:34:08,854 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 165 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-03 12:34:08,857 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 729 states.
[2024-11-03 12:34:08,907 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729.
[2024-11-03 12:34:08,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 729 states, 416 states have (on average 1.1875) internal successors, (494), 417 states have internal predecessors, (494), 282 states have call successors, (282), 30 states have call predecessors, (282), 30 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282)
[2024-11-03 12:34:08,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1058 transitions.
[2024-11-03 12:34:08,914 INFO  L78                 Accepts]: Start accepts. Automaton has 729 states and 1058 transitions. Word has length 271
[2024-11-03 12:34:08,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:34:08,915 INFO  L471      AbstractCegarLoop]: Abstraction has 729 states and 1058 transitions.
[2024-11-03 12:34:08,915 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:34:08,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 729 states and 1058 transitions.
[2024-11-03 12:34:08,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 272
[2024-11-03 12:34:08,917 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:34:08,917 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:08,927 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:34:09,118 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:09,118 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:34:09,119 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:34:09,119 INFO  L85        PathProgramCache]: Analyzing trace with hash 708038653, now seen corresponding path program 1 times
[2024-11-03 12:34:09,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:34:09,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753292220]
[2024-11-03 12:34:09,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:34:09,119 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:34:09,119 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:09,122 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:34:09,125 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:34:09,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:34:09,218 INFO  L255         TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-03 12:34:09,223 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:11,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 2767 proven. 174 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked.
[2024-11-03 12:34:11,048 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:34:12,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 114 proven. 15 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked.
[2024-11-03 12:34:12,089 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:34:12,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753292220]
[2024-11-03 12:34:12,089 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1753292220] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:34:12,089 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:34:12,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 25
[2024-11-03 12:34:12,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580287371]
[2024-11-03 12:34:12,090 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:34:12,090 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-03 12:34:12,090 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:34:12,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-03 12:34:12,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600
[2024-11-03 12:34:12,092 INFO  L87              Difference]: Start difference. First operand 729 states and 1058 transitions. Second operand  has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 7 states have call successors, (88), 6 states have call predecessors, (88), 11 states have return successors, (88), 7 states have call predecessors, (88), 7 states have call successors, (88)
[2024-11-03 12:34:19,226 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:34:19,226 INFO  L93              Difference]: Finished difference Result 1915 states and 2657 transitions.
[2024-11-03 12:34:19,227 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. 
[2024-11-03 12:34:19,228 INFO  L78                 Accepts]: Start accepts. Automaton has  has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 7 states have call successors, (88), 6 states have call predecessors, (88), 11 states have return successors, (88), 7 states have call predecessors, (88), 7 states have call successors, (88) Word has length 271
[2024-11-03 12:34:19,228 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:34:19,234 INFO  L225             Difference]: With dead ends: 1915
[2024-11-03 12:34:19,234 INFO  L226             Difference]: Without dead ends: 1217
[2024-11-03 12:34:19,237 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=593, Invalid=2059, Unknown=0, NotChecked=0, Total=2652
[2024-11-03 12:34:19,238 INFO  L432           NwaCegarLoop]: 104 mSDtfsCounter, 579 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:34:19,238 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 469 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-03 12:34:19,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1217 states.
[2024-11-03 12:34:19,314 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 857.
[2024-11-03 12:34:19,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 857 states, 512 states have (on average 1.150390625) internal successors, (589), 513 states have internal predecessors, (589), 282 states have call successors, (282), 62 states have call predecessors, (282), 62 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282)
[2024-11-03 12:34:19,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1153 transitions.
[2024-11-03 12:34:19,321 INFO  L78                 Accepts]: Start accepts. Automaton has 857 states and 1153 transitions. Word has length 271
[2024-11-03 12:34:19,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:34:19,321 INFO  L471      AbstractCegarLoop]: Abstraction has 857 states and 1153 transitions.
[2024-11-03 12:34:19,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 25 states have (on average 4.96) internal successors, (124), 25 states have internal predecessors, (124), 7 states have call successors, (88), 6 states have call predecessors, (88), 11 states have return successors, (88), 7 states have call predecessors, (88), 7 states have call successors, (88)
[2024-11-03 12:34:19,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 857 states and 1153 transitions.
[2024-11-03 12:34:19,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 272
[2024-11-03 12:34:19,323 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:34:19,323 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:19,330 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0
[2024-11-03 12:34:19,528 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:19,529 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:34:19,529 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:34:19,529 INFO  L85        PathProgramCache]: Analyzing trace with hash 966204091, now seen corresponding path program 1 times
[2024-11-03 12:34:19,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:34:19,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314329476]
[2024-11-03 12:34:19,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:34:19,530 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:34:19,530 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:19,531 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:34:19,532 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process
[2024-11-03 12:34:19,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:34:19,620 INFO  L255         TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 39 conjuncts are in the unsatisfiable core
[2024-11-03 12:34:19,626 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:45,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 2025 proven. 204 refuted. 0 times theorem prover too weak. 1555 trivial. 0 not checked.
[2024-11-03 12:34:45,441 INFO  L311         TraceCheckSpWp]: Computing backward predicates...