/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_amount250_file-1.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:45:46,280 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:45:46,365 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 12:45:46,369 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:45:46,370 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:45:46,394 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:45:46,395 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:45:46,395 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:45:46,395 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:45:46,396 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:45:46,398 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:45:46,398 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:45:46,398 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:45:46,400 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:45:46,400 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:45:46,400 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:45:46,401 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:45:46,401 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:45:46,401 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:45:46,402 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:45:46,402 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:45:46,406 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:45:46,406 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:45:46,407 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:45:46,407 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:45:46,407 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:45:46,407 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:45:46,408 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:45:46,408 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:45:46,408 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:45:46,408 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:45:46,409 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:45:46,409 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:45:46,409 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:45:46,410 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:45:46,410 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:45:46,410 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:45:46,410 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:45:46,410 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:45:46,410 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:45:46,411 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:45:46,411 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:45:46,411 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:45:46,411 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:45:46,411 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:45:46,632 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:45:46,656 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:45:46,659 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:45:46,660 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:45:46,660 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:45:46,661 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-1.i
[2024-11-03 12:45:48,072 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:45:48,295 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:45:48,296 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-1.i
[2024-11-03 12:45:48,305 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9838061cf/b65ddaba7301479a9407a891c023ce81/FLAG32f9b5755
[2024-11-03 12:45:48,317 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9838061cf/b65ddaba7301479a9407a891c023ce81
[2024-11-03 12:45:48,319 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:45:48,320 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:45:48,321 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:45:48,321 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:45:48,325 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:45:48,325 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,326 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327c0a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48, skipping insertion in model container
[2024-11-03 12:45:48,326 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,362 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:45:48,516 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_amount250_file-1.i[915,928]
[2024-11-03 12:45:48,656 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:45:48,673 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:45:48,683 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_amount250_file-1.i[915,928]
[2024-11-03 12:45:48,765 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:45:48,784 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:45:48,785 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48 WrapperNode
[2024-11-03 12:45:48,785 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:45:48,786 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:45:48,786 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:45:48,786 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:45:48,793 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,809 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,860 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 348
[2024-11-03 12:45:48,861 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:45:48,862 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:45:48,862 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:45:48,862 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:45:48,872 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,872 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,882 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,916 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 12:45:48,917 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,917 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,946 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,955 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,958 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,961 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,967 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:45:48,968 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:45:48,968 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:45:48,968 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:45:48,973 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (1/1) ...
[2024-11-03 12:45:48,978 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:45:48,988 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:45:49,007 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 12:45:49,013 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 12:45:49,039 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:45:49,039 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:45:49,039 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:45:49,039 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:45:49,040 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:45:49,041 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:45:49,168 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:45:49,171 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:45:59,792 INFO  L?                        ?]: Removed 34 outVars from TransFormulas that were not future-live.
[2024-11-03 12:45:59,792 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:45:59,811 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:45:59,812 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:45:59,813 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:45:59 BoogieIcfgContainer
[2024-11-03 12:45:59,814 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:45:59,816 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:45:59,816 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:45:59,819 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:45:59,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:45:48" (1/3) ...
[2024-11-03 12:45:59,820 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d0314e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:45:59, skipping insertion in model container
[2024-11-03 12:45:59,820 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:48" (2/3) ...
[2024-11-03 12:45:59,821 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d0314e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:45:59, skipping insertion in model container
[2024-11-03 12:45:59,821 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:45:59" (3/3) ...
[2024-11-03 12:45:59,822 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-1.i
[2024-11-03 12:45:59,837 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:45:59,837 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:45:59,899 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:45:59,905 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;@3fbba9e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:45:59,905 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:45:59,910 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 139 states, 93 states have (on average 1.5268817204301075) internal successors, (142), 94 states have internal predecessors, (142), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 12:45:59,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 12:45:59,931 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:45:59,932 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:59,933 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:45:59,938 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:45:59,939 INFO  L85        PathProgramCache]: Analyzing trace with hash -234542320, now seen corresponding path program 1 times
[2024-11-03 12:45:59,946 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:45:59,947 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863673342]
[2024-11-03 12:45:59,947 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:45:59,950 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:45:59,950 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:45:59,952 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 12:45:59,954 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:46:00,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:00,220 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:00,240 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:00,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 12:46:00,310 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:46:01,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked.
[2024-11-03 12:46:01,470 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:46:01,471 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863673342]
[2024-11-03 12:46:01,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1863673342] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:46:01,471 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:46:01,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:46:01,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120875580]
[2024-11-03 12:46:01,474 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:46:01,479 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:46:01,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:46:01,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:46:01,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:46:01,503 INFO  L87              Difference]: Start difference. First operand  has 139 states, 93 states have (on average 1.5268817204301075) internal successors, (142), 94 states have internal predecessors, (142), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 12:46:01,553 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:46:01,553 INFO  L93              Difference]: Finished difference Result 271 states and 493 transitions.
[2024-11-03 12:46:01,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:46:01,556 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) Word has length 283
[2024-11-03 12:46:01,557 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:46:01,566 INFO  L225             Difference]: With dead ends: 271
[2024-11-03 12:46:01,566 INFO  L226             Difference]: Without dead ends: 135
[2024-11-03 12:46:01,575 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 564 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 12:46:01,578 INFO  L432           NwaCegarLoop]: 221 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, 221 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 12:46:01,580 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:46:01,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2024-11-03 12:46:01,628 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135.
[2024-11-03 12:46:01,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 135 states, 90 states have (on average 1.5) internal successors, (135), 90 states have internal predecessors, (135), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 12:46:01,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 221 transitions.
[2024-11-03 12:46:01,639 INFO  L78                 Accepts]: Start accepts. Automaton has 135 states and 221 transitions. Word has length 283
[2024-11-03 12:46:01,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:46:01,639 INFO  L471      AbstractCegarLoop]: Abstraction has 135 states and 221 transitions.
[2024-11-03 12:46:01,640 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43)
[2024-11-03 12:46:01,640 INFO  L276                IsEmpty]: Start isEmpty. Operand 135 states and 221 transitions.
[2024-11-03 12:46:01,646 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 12:46:01,647 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:46:01,647 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:01,651 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:46:01,849 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:01,850 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:46:01,850 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:46:01,851 INFO  L85        PathProgramCache]: Analyzing trace with hash 1370977302, now seen corresponding path program 1 times
[2024-11-03 12:46:01,851 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:46:01,851 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003142203]
[2024-11-03 12:46:01,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:46:01,852 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:46:01,852 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:01,853 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 12:46:01,854 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:46:02,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:02,027 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:02,035 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:05,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 918 proven. 108 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked.
[2024-11-03 12:46:05,211 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:46:07,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 18 proven. 108 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 12:46:07,633 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:46:07,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003142203]
[2024-11-03 12:46:07,634 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2003142203] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:46:07,634 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:46:07,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:46:07,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710310109]
[2024-11-03 12:46:07,634 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:46:07,636 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:46:07,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:46:07,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:46:07,637 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:46:07,638 INFO  L87              Difference]: Start difference. First operand 135 states and 221 transitions. Second operand  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2024-11-03 12:46:13,732 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:17,736 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:21,741 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:21,747 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:46:21,747 INFO  L93              Difference]: Finished difference Result 273 states and 444 transitions.
[2024-11-03 12:46:21,801 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 12:46:21,801 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 283
[2024-11-03 12:46:21,803 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:46:21,805 INFO  L225             Difference]: With dead ends: 273
[2024-11-03 12:46:21,805 INFO  L226             Difference]: Without dead ends: 141
[2024-11-03 12:46:21,806 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 12:46:21,807 INFO  L432           NwaCegarLoop]: 168 mSDtfsCounter, 197 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 19 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time
[2024-11-03 12:46:21,808 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 417 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 237 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time]
[2024-11-03 12:46:21,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2024-11-03 12:46:21,825 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139.
[2024-11-03 12:46:21,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 93 states have (on average 1.4731182795698925) internal successors, (137), 93 states have internal predecessors, (137), 43 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43)
[2024-11-03 12:46:21,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 223 transitions.
[2024-11-03 12:46:21,828 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 223 transitions. Word has length 283
[2024-11-03 12:46:21,829 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:46:21,829 INFO  L471      AbstractCegarLoop]: Abstraction has 139 states and 223 transitions.
[2024-11-03 12:46:21,830 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80)
[2024-11-03 12:46:21,830 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 223 transitions.
[2024-11-03 12:46:21,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 12:46:21,834 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:46:21,834 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:21,839 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:46:22,034 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:22,035 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:46:22,036 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:46:22,036 INFO  L85        PathProgramCache]: Analyzing trace with hash 1433016916, now seen corresponding path program 1 times
[2024-11-03 12:46:22,036 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:46:22,036 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383753023]
[2024-11-03 12:46:22,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:46:22,036 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:46:22,037 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:46:22,038 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 12:46:22,039 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:46:22,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:46:22,192 INFO  L255         TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-03 12:46:22,203 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:46:34,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 12:46:34,183 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:46:36,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked.
[2024-11-03 12:46:36,835 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:46:36,835 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383753023]
[2024-11-03 12:46:36,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1383753023] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:46:36,836 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:46:36,836 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-03 12:46:36,836 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249826433]
[2024-11-03 12:46:36,836 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:46:36,837 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 12:46:36,838 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:46:36,839 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 12:46:36,839 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:46:36,839 INFO  L87              Difference]: Start difference. First operand 139 states and 223 transitions. Second operand  has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86)
[2024-11-03 12:46:43,880 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:47,885 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:51,892 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:55,902 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:46:59,907 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:04,305 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:08,312 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:12,323 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:16,330 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:20,338 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:24,346 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:47:24,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:47:24,347 INFO  L93              Difference]: Finished difference Result 446 states and 725 transitions.
[2024-11-03 12:47:24,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 12:47:24,411 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) Word has length 283
[2024-11-03 12:47:24,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:47:24,416 INFO  L225             Difference]: With dead ends: 446
[2024-11-03 12:47:24,416 INFO  L226             Difference]: Without dead ends: 310
[2024-11-03 12:47:24,418 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2024-11-03 12:47:24,418 INFO  L432           NwaCegarLoop]: 244 mSDtfsCounter, 338 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 89 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:47:24,419 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1170 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 315 Invalid, 11 Unknown, 0 Unchecked, 47.1s Time]
[2024-11-03 12:47:24,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2024-11-03 12:47:24,472 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 222.
[2024-11-03 12:47:24,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 222 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 131 states have internal predecessors, (178), 86 states have call successors, (86), 4 states have call predecessors, (86), 4 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2024-11-03 12:47:24,476 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 350 transitions.
[2024-11-03 12:47:24,477 INFO  L78                 Accepts]: Start accepts. Automaton has 222 states and 350 transitions. Word has length 283
[2024-11-03 12:47:24,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:47:24,478 INFO  L471      AbstractCegarLoop]: Abstraction has 222 states and 350 transitions.
[2024-11-03 12:47:24,479 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86)
[2024-11-03 12:47:24,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 222 states and 350 transitions.
[2024-11-03 12:47:24,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 284
[2024-11-03 12:47:24,485 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:47:24,486 INFO  L215           NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:24,490 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:47:24,686 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:47:24,687 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:47:24,688 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:47:24,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 589011414, now seen corresponding path program 1 times
[2024-11-03 12:47:24,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:47:24,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1295456389]
[2024-11-03 12:47:24,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:47:24,688 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:47:24,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:47:24,690 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 12:47:24,691 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:47:24,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:47:24,824 INFO  L255         TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:47:24,828 INFO  L278         TraceCheckSpWp]: Computing forward predicates...