/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-51.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:33:33,304 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:33:33,346 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 12:33:33,350 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:33:33,350 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:33:33,367 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:33:33,368 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:33:33,368 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:33:33,368 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:33:33,369 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:33:33,369 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:33:33,369 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:33:33,370 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:33:33,370 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:33:33,370 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:33:33,370 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:33:33,371 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:33:33,371 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:33:33,371 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:33:33,371 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:33:33,372 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:33:33,372 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:33:33,372 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:33:33,372 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:33:33,373 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:33:33,373 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:33:33,373 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:33:33,373 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:33:33,373 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:33:33,374 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:33:33,374 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:33:33,374 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:33:33,374 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:33:33,374 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:33:33,375 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:33:33,375 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:33:33,375 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:33:33,375 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:33:33,376 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:33:33,376 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:33:33,376 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:33:33,376 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:33:33,376 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:33:33,377 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:33:33,377 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:33:33,567 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:33:33,587 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:33:33,589 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:33:33,590 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:33:33,590 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:33:33,591 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-51.i
[2024-11-03 12:33:34,892 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:33:35,075 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:33:35,076 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-51.i
[2024-11-03 12:33:35,084 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3d9250d/fdf5a23b862d497490d0a10cc554f23d/FLAGddc263314
[2024-11-03 12:33:35,097 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3d9250d/fdf5a23b862d497490d0a10cc554f23d
[2024-11-03 12:33:35,100 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:33:35,101 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:33:35,104 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:33:35,104 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:33:35,108 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:33:35,108 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,109 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5a66c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35, skipping insertion in model container
[2024-11-03 12:33:35,109 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,134 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:33:35,271 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-51.i[916,929]
[2024-11-03 12:33:35,336 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:33:35,355 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:33:35,365 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-51.i[916,929]
[2024-11-03 12:33:35,403 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:33:35,429 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:33:35,430 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35 WrapperNode
[2024-11-03 12:33:35,430 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:33:35,431 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:33:35,431 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:33:35,431 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:33:35,436 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,447 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,469 INFO  L138                Inliner]: procedures = 27, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206
[2024-11-03 12:33:35,470 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:33:35,470 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:33:35,471 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:33:35,471 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:33:35,480 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,480 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,485 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,503 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 12:33:35,503 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,503 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,511 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,514 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,516 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,518 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,521 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:33:35,522 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:33:35,522 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:33:35,522 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:33:35,522 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (1/1) ...
[2024-11-03 12:33:35,530 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:33:35,540 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:33:35,558 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 12:33:35,561 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 12:33:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:33:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:33:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:33:35,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:33:35,581 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:33:35,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:33:35,668 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:33:35,670 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:33:49,472 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-03 12:33:49,472 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:33:49,484 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:33:49,484 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:33:49,484 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:33:49 BoogieIcfgContainer
[2024-11-03 12:33:49,484 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:33:49,486 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:33:49,487 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:33:49,489 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:33:49,489 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:33:35" (1/3) ...
[2024-11-03 12:33:49,490 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:33:49, skipping insertion in model container
[2024-11-03 12:33:49,490 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:33:35" (2/3) ...
[2024-11-03 12:33:49,490 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fe8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:33:49, skipping insertion in model container
[2024-11-03 12:33:49,490 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:33:49" (3/3) ...
[2024-11-03 12:33:49,491 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-51.i
[2024-11-03 12:33:49,503 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:33:49,504 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:33:49,557 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:33:49,562 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;@54642261, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:33:49,563 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:33:49,566 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 94 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 12:33:49,577 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 12:33:49,577 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:33:49,578 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:49,578 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:33:49,582 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:33:49,582 INFO  L85        PathProgramCache]: Analyzing trace with hash -927657512, now seen corresponding path program 1 times
[2024-11-03 12:33:49,588 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:33:49,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160169945]
[2024-11-03 12:33:49,588 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:33:49,590 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:33:49,590 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:49,594 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 12:33:49,595 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:33:49,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:33:49,715 INFO  L255         TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:33:49,733 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:33:49,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked.
[2024-11-03 12:33:49,794 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:33:52,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked.
[2024-11-03 12:33:52,103 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:33:52,103 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160169945]
[2024-11-03 12:33:52,103 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1160169945] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:33:52,104 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:33:52,104 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:33:52,105 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446564749]
[2024-11-03 12:33:52,105 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:33:52,109 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:33:52,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:33:52,125 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:33:52,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:33:52,128 INFO  L87              Difference]: Start difference. First operand  has 94 states, 59 states have (on average 1.423728813559322) internal successors, (84), 60 states have internal predecessors, (84), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 12:33:52,151 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:33:52,151 INFO  L93              Difference]: Finished difference Result 181 states and 322 transitions.
[2024-11-03 12:33:52,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:33:52,157 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 203
[2024-11-03 12:33:52,157 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:33:52,165 INFO  L225             Difference]: With dead ends: 181
[2024-11-03 12:33:52,165 INFO  L226             Difference]: Without dead ends: 90
[2024-11-03 12:33:52,169 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 404 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 12:33:52,172 INFO  L432           NwaCegarLoop]: 141 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, 141 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 12:33:52,173 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:33:52,185 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2024-11-03 12:33:52,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90.
[2024-11-03 12:33:52,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 56 states have (on average 1.375) internal successors, (77), 56 states have internal predecessors, (77), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-03 12:33:52,212 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 141 transitions.
[2024-11-03 12:33:52,215 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 141 transitions. Word has length 203
[2024-11-03 12:33:52,215 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:33:52,215 INFO  L471      AbstractCegarLoop]: Abstraction has 90 states and 141 transitions.
[2024-11-03 12:33:52,216 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 1 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32)
[2024-11-03 12:33:52,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions.
[2024-11-03 12:33:52,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 12:33:52,223 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:33:52,223 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:52,228 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:33:52,424 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:52,425 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:33:52,426 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:33:52,426 INFO  L85        PathProgramCache]: Analyzing trace with hash -311920876, now seen corresponding path program 1 times
[2024-11-03 12:33:52,426 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:33:52,426 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546284300]
[2024-11-03 12:33:52,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:33:52,427 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:33:52,427 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:33:52,431 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 12:33:52,432 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:33:52,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:33:52,557 INFO  L255         TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:33:52,563 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:07,826 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2024-11-03 12:34:07,826 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:34:15,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked.
[2024-11-03 12:34:15,358 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:34:15,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546284300]
[2024-11-03 12:34:15,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [546284300] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:34:15,358 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:34:15,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 12:34:15,359 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759860943]
[2024-11-03 12:34:15,359 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:34:15,363 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:34:15,363 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:34:15,364 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:34:15,364 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:34:15,364 INFO  L87              Difference]: Start difference. First operand 90 states and 141 transitions. Second operand  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64)
[2024-11-03 12:34:21,710 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:34:25,714 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:34:30,315 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:34:34,327 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:34:34,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:34:34,347 INFO  L93              Difference]: Finished difference Result 264 states and 417 transitions.
[2024-11-03 12:34:34,514 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:34:34,515 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64) Word has length 203
[2024-11-03 12:34:34,516 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:34:34,518 INFO  L225             Difference]: With dead ends: 264
[2024-11-03 12:34:34,518 INFO  L226             Difference]: Without dead ends: 177
[2024-11-03 12:34:34,519 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:34:34,522 INFO  L432           NwaCegarLoop]: 141 mSDtfsCounter, 31 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:34:34,522 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 337 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time]
[2024-11-03 12:34:34,523 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 177 states.
[2024-11-03 12:34:34,577 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175.
[2024-11-03 12:34:34,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 175 states, 108 states have (on average 1.3518518518518519) internal successors, (146), 108 states have internal predecessors, (146), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2024-11-03 12:34:34,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 274 transitions.
[2024-11-03 12:34:34,580 INFO  L78                 Accepts]: Start accepts. Automaton has 175 states and 274 transitions. Word has length 203
[2024-11-03 12:34:34,580 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:34:34,580 INFO  L471      AbstractCegarLoop]: Abstraction has 175 states and 274 transitions.
[2024-11-03 12:34:34,581 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 1 states have call predecessors, (64), 1 states have call successors, (64)
[2024-11-03 12:34:34,581 INFO  L276                IsEmpty]: Start isEmpty. Operand 175 states and 274 transitions.
[2024-11-03 12:34:34,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 12:34:34,583 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:34:34,583 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:34:34,588 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:34:34,785 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:34,786 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:34:34,786 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:34:34,786 INFO  L85        PathProgramCache]: Analyzing trace with hash 709147478, now seen corresponding path program 1 times
[2024-11-03 12:34:34,786 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:34:34,787 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468130079]
[2024-11-03 12:34:34,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:34:34,787 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:34:34,787 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:34:34,789 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 12:34:34,790 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:34:34,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:34:34,891 INFO  L255         TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 12:34:34,898 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:34:39,302 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 1011 proven. 51 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked.
[2024-11-03 12:34:39,303 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:34:43,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 1984 backedges. 42 proven. 51 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked.
[2024-11-03 12:34:43,860 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:34:43,860 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468130079]
[2024-11-03 12:34:43,860 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [468130079] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:34:43,860 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:34:43,860 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8
[2024-11-03 12:34:43,860 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431951602]
[2024-11-03 12:34:43,860 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:34:43,861 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 12:34:43,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:34:43,862 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 12:34:43,862 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:34:43,866 INFO  L87              Difference]: Start difference. First operand 175 states and 274 transitions. Second operand  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 12:34:53,888 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:34:57,909 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:01,915 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:05,918 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:09,932 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:13,946 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:17,966 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:35:18,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:35:18,678 INFO  L93              Difference]: Finished difference Result 425 states and 647 transitions.
[2024-11-03 12:35:18,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-03 12:35:18,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 203
[2024-11-03 12:35:18,679 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:35:18,681 INFO  L225             Difference]: With dead ends: 425
[2024-11-03 12:35:18,681 INFO  L226             Difference]: Without dead ends: 253
[2024-11-03 12:35:18,682 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210
[2024-11-03 12:35:18,683 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 149 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 39 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:35:18,683 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 356 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 270 Invalid, 7 Unknown, 0 Unchecked, 33.7s Time]
[2024-11-03 12:35:18,684 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 253 states.
[2024-11-03 12:35:18,701 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 236.
[2024-11-03 12:35:18,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236 states, 152 states have (on average 1.3223684210526316) internal successors, (201), 153 states have internal predecessors, (201), 77 states have call successors, (77), 6 states have call predecessors, (77), 6 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77)
[2024-11-03 12:35:18,704 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 355 transitions.
[2024-11-03 12:35:18,704 INFO  L78                 Accepts]: Start accepts. Automaton has 236 states and 355 transitions. Word has length 203
[2024-11-03 12:35:18,705 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:35:18,705 INFO  L471      AbstractCegarLoop]: Abstraction has 236 states and 355 transitions.
[2024-11-03 12:35:18,705 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50)
[2024-11-03 12:35:18,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 355 transitions.
[2024-11-03 12:35:18,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2024-11-03 12:35:18,710 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:35:18,710 INFO  L215           NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:18,725 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:35:18,911 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:35:18,911 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:35:18,912 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:35:18,912 INFO  L85        PathProgramCache]: Analyzing trace with hash -570716200, now seen corresponding path program 1 times
[2024-11-03 12:35:18,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:35:18,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171148655]
[2024-11-03 12:35:18,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:35:18,912 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:35:18,913 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:35:18,917 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 12:35:18,918 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:35:19,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:35:19,019 INFO  L255         TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 12:35:19,024 INFO  L278         TraceCheckSpWp]: Computing forward predicates...