/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-63.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:53:05,076 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:53:05,129 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 12:53:05,134 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:53:05,134 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:53:05,157 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:53:05,158 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:53:05,158 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:53:05,159 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:53:05,160 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:53:05,160 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:53:05,160 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:53:05,160 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:53:05,161 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:53:05,161 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:53:05,161 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:53:05,161 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:53:05,162 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:53:05,162 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:53:05,164 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:53:05,166 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:53:05,167 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:53:05,167 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:53:05,168 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:53:05,168 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:53:05,169 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:53:05,170 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:53:05,170 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:53:05,170 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:53:05,170 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:53:05,337 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:53:05,357 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:53:05,359 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:53:05,361 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:53:05,361 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:53:05,362 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-63.i
[2024-11-03 12:53:06,534 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:53:06,726 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:53:06,726 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-63.i
[2024-11-03 12:53:06,740 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872ca99fb/9740426da49448aabf8b36b50852fcb5/FLAG0fc58b012
[2024-11-03 12:53:07,104 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872ca99fb/9740426da49448aabf8b36b50852fcb5
[2024-11-03 12:53:07,106 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:53:07,107 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:53:07,108 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:53:07,108 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:53:07,116 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:53:07,116 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,117 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53cc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07, skipping insertion in model container
[2024-11-03 12:53:07,117 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,148 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:53:07,267 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-63.i[916,929]
[2024-11-03 12:53:07,370 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:53:07,387 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:53:07,397 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-63.i[916,929]
[2024-11-03 12:53:07,454 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:53:07,471 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:53:07,471 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07 WrapperNode
[2024-11-03 12:53:07,471 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:53:07,472 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:53:07,472 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:53:07,472 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:53:07,476 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,489 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,513 INFO  L138                Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 350
[2024-11-03 12:53:07,513 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:53:07,514 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:53:07,514 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:53:07,514 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:53:07,522 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,522 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,529 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,552 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 12:53:07,552 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,553 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,571 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,579 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,583 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,585 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,589 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:53:07,590 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:53:07,590 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:53:07,590 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:53:07,590 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (1/1) ...
[2024-11-03 12:53:07,594 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:53:07,601 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:53:07,614 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 12:53:07,616 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 12:53:07,634 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:53:07,635 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:53:07,635 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:53:07,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:53:07,635 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:53:07,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:53:07,741 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:53:07,743 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:53:15,108 INFO  L?                        ?]: Removed 44 outVars from TransFormulas that were not future-live.
[2024-11-03 12:53:15,108 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:53:15,122 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:53:15,122 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:53:15,123 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:53:15 BoogieIcfgContainer
[2024-11-03 12:53:15,123 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:53:15,124 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:53:15,124 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:53:15,126 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:53:15,126 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:53:07" (1/3) ...
[2024-11-03 12:53:15,126 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72588eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:53:15, skipping insertion in model container
[2024-11-03 12:53:15,127 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:53:07" (2/3) ...
[2024-11-03 12:53:15,127 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72588eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:53:15, skipping insertion in model container
[2024-11-03 12:53:15,127 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:53:15" (3/3) ...
[2024-11-03 12:53:15,127 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-63.i
[2024-11-03 12:53:15,138 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:53:15,138 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:53:15,180 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:53:15,184 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;@4f2bb6a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:53:15,184 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:53:15,188 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 147 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 98 states have internal predecessors, (144), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 12:53:15,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:53:15,205 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:53:15,206 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:15,206 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:53:15,210 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:53:15,210 INFO  L85        PathProgramCache]: Analyzing trace with hash -369639437, now seen corresponding path program 1 times
[2024-11-03 12:53:15,217 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:53:15,217 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821638502]
[2024-11-03 12:53:15,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:53:15,219 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:53:15,219 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:53:15,221 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 12:53:15,222 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:53:15,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:53:15,373 INFO  L255         TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:53:15,382 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:53:15,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked.
[2024-11-03 12:53:15,444 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:53:16,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked.
[2024-11-03 12:53:16,418 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:53:16,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821638502]
[2024-11-03 12:53:16,418 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1821638502] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:53:16,418 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:53:16,418 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:53:16,420 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871928808]
[2024-11-03 12:53:16,420 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:53:16,426 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:53:16,427 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:53:16,443 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:53:16,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:53:16,446 INFO  L87              Difference]: Start difference. First operand  has 147 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 98 states have internal predecessors, (144), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 12:53:16,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:53:16,479 INFO  L93              Difference]: Finished difference Result 286 states and 515 transitions.
[2024-11-03 12:53:16,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:53:16,480 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47) Word has length 306
[2024-11-03 12:53:16,481 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:53:16,486 INFO  L225             Difference]: With dead ends: 286
[2024-11-03 12:53:16,486 INFO  L226             Difference]: Without dead ends: 142
[2024-11-03 12:53:16,489 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 610 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 12:53:16,491 INFO  L432           NwaCegarLoop]: 227 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, 227 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 12:53:16,491 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:53:16,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2024-11-03 12:53:16,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142.
[2024-11-03 12:53:16,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 142 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 93 states have internal predecessors, (133), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-11-03 12:53:16,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 227 transitions.
[2024-11-03 12:53:16,532 INFO  L78                 Accepts]: Start accepts. Automaton has 142 states and 227 transitions. Word has length 306
[2024-11-03 12:53:16,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:53:16,532 INFO  L471      AbstractCegarLoop]: Abstraction has 142 states and 227 transitions.
[2024-11-03 12:53:16,533 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 1 states have call successors, (47), 1 states have call predecessors, (47), 2 states have return successors, (47), 2 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 12:53:16,533 INFO  L276                IsEmpty]: Start isEmpty. Operand 142 states and 227 transitions.
[2024-11-03 12:53:16,537 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:53:16,537 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:53:16,538 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:16,547 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:53:16,738 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:53:16,739 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:53:16,739 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:53:16,740 INFO  L85        PathProgramCache]: Analyzing trace with hash 1358618737, now seen corresponding path program 1 times
[2024-11-03 12:53:16,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:53:16,740 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978351059]
[2024-11-03 12:53:16,740 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:53:16,740 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:53:16,740 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:53:16,741 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 12:53:16,742 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:53:16,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:53:16,878 INFO  L255         TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:53:16,883 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:53:19,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:53:19,717 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:53:21,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:53:21,343 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:53:21,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978351059]
[2024-11-03 12:53:21,344 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1978351059] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:53:21,344 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:53:21,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4
[2024-11-03 12:53:21,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58426750]
[2024-11-03 12:53:21,345 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:53:21,346 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:53:21,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:53:21,347 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:53:21,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:53:21,348 INFO  L87              Difference]: Start difference. First operand 142 states and 227 transitions. Second operand  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94)
[2024-11-03 12:53:25,853 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:53:29,857 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:53:33,861 WARN  L539   Checker$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 12:53:38,113 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:53:42,116 WARN  L539   Checker$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 12:53:45,562 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:53:45,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:53:45,647 INFO  L93              Difference]: Finished difference Result 525 states and 846 transitions.
[2024-11-03 12:53:45,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 12:53:45,705 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 306
[2024-11-03 12:53:45,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:53:45,710 INFO  L225             Difference]: With dead ends: 525
[2024-11-03 12:53:45,710 INFO  L226             Difference]: Without dead ends: 386
[2024-11-03 12:53:45,711 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-03 12:53:45,712 INFO  L432           NwaCegarLoop]: 308 mSDtfsCounter, 289 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 107 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time
[2024-11-03 12:53:45,713 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 817 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 24.2s Time]
[2024-11-03 12:53:45,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 386 states.
[2024-11-03 12:53:45,753 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 294.
[2024-11-03 12:53:45,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 294 states, 197 states have (on average 1.4263959390862944) internal successors, (281), 197 states have internal predecessors, (281), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94)
[2024-11-03 12:53:45,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 469 transitions.
[2024-11-03 12:53:45,759 INFO  L78                 Accepts]: Start accepts. Automaton has 294 states and 469 transitions. Word has length 306
[2024-11-03 12:53:45,760 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:53:45,760 INFO  L471      AbstractCegarLoop]: Abstraction has 294 states and 469 transitions.
[2024-11-03 12:53:45,760 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94)
[2024-11-03 12:53:45,761 INFO  L276                IsEmpty]: Start isEmpty. Operand 294 states and 469 transitions.
[2024-11-03 12:53:45,766 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:53:45,766 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:53:45,766 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:45,770 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0
[2024-11-03 12:53:45,968 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:53:45,968 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:53:45,969 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:53:45,969 INFO  L85        PathProgramCache]: Analyzing trace with hash -1595973263, now seen corresponding path program 1 times
[2024-11-03 12:53:45,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:53:45,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121368047]
[2024-11-03 12:53:45,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:53:45,970 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:53:45,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:53:45,971 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 12:53:45,972 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:53:46,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:53:46,076 INFO  L255         TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:53:46,081 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:53:53,153 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:53:53,154 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:53:55,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:53:55,369 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:53:55,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121368047]
[2024-11-03 12:53:55,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2121368047] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:53:55,369 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:53:55,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-03 12:53:55,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257151802]
[2024-11-03 12:53:55,370 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:53:55,370 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 12:53:55,370 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:53:55,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 12:53:55,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:53:55,372 INFO  L87              Difference]: Start difference. First operand 294 states and 469 transitions. Second operand  has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94)
[2024-11-03 12:54:00,169 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:04,174 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:08,182 WARN  L539   Checker$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 12:54:12,484 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:16,486 WARN  L539   Checker$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 12:54:20,130 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:20,214 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:54:20,214 INFO  L93              Difference]: Finished difference Result 777 states and 1242 transitions.
[2024-11-03 12:54:20,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-03 12:54:20,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 306
[2024-11-03 12:54:20,284 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:54:20,287 INFO  L225             Difference]: With dead ends: 777
[2024-11-03 12:54:20,287 INFO  L226             Difference]: Without dead ends: 486
[2024-11-03 12:54:20,288 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:54:20,289 INFO  L432           NwaCegarLoop]: 223 mSDtfsCounter, 203 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 96 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time
[2024-11-03 12:54:20,289 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 849 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 24.7s Time]
[2024-11-03 12:54:20,290 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 486 states.
[2024-11-03 12:54:20,325 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 400.
[2024-11-03 12:54:20,326 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 400 states, 255 states have (on average 1.380392156862745) internal successors, (352), 255 states have internal predecessors, (352), 141 states have call successors, (141), 3 states have call predecessors, (141), 3 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141)
[2024-11-03 12:54:20,328 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 634 transitions.
[2024-11-03 12:54:20,328 INFO  L78                 Accepts]: Start accepts. Automaton has 400 states and 634 transitions. Word has length 306
[2024-11-03 12:54:20,329 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:54:20,329 INFO  L471      AbstractCegarLoop]: Abstraction has 400 states and 634 transitions.
[2024-11-03 12:54:20,329 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94)
[2024-11-03 12:54:20,330 INFO  L276                IsEmpty]: Start isEmpty. Operand 400 states and 634 transitions.
[2024-11-03 12:54:20,331 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:54:20,331 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:54:20,331 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:20,334 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0
[2024-11-03 12:54:20,533 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:20,533 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:54:20,534 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:54:20,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -2105446353, now seen corresponding path program 1 times
[2024-11-03 12:54:20,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:54:20,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315324821]
[2024-11-03 12:54:20,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:54:20,534 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:54:20,534 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:20,536 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 12:54:20,537 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:54:20,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:54:20,628 INFO  L255         TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:54:20,632 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:54:20,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:54:20,909 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:54:22,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked.
[2024-11-03 12:54:22,192 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:54:22,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315324821]
[2024-11-03 12:54:22,193 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [315324821] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:54:22,193 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:54:22,193 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 12:54:22,193 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553804511]
[2024-11-03 12:54:22,193 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:54:22,193 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 12:54:22,194 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:54:22,194 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 12:54:22,194 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:54:22,194 INFO  L87              Difference]: Start difference. First operand 400 states and 634 transitions. Second operand  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 12:54:26,426 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:30,430 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 12:54:30,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:54:30,509 INFO  L93              Difference]: Finished difference Result 801 states and 1268 transitions.
[2024-11-03 12:54:30,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:54:30,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 306
[2024-11-03 12:54:30,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:54:30,512 INFO  L225             Difference]: With dead ends: 801
[2024-11-03 12:54:30,512 INFO  L226             Difference]: Without dead ends: 510
[2024-11-03 12:54:30,513 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:54:30,514 INFO  L432           NwaCegarLoop]: 262 mSDtfsCounter, 72 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time
[2024-11-03 12:54:30,515 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 469 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time]
[2024-11-03 12:54:30,515 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 510 states.
[2024-11-03 12:54:30,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 506.
[2024-11-03 12:54:30,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 506 states, 343 states have (on average 1.402332361516035) internal successors, (481), 345 states have internal predecessors, (481), 157 states have call successors, (157), 5 states have call predecessors, (157), 5 states have return successors, (157), 155 states have call predecessors, (157), 157 states have call successors, (157)
[2024-11-03 12:54:30,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 795 transitions.
[2024-11-03 12:54:30,543 INFO  L78                 Accepts]: Start accepts. Automaton has 506 states and 795 transitions. Word has length 306
[2024-11-03 12:54:30,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:54:30,544 INFO  L471      AbstractCegarLoop]: Abstraction has 506 states and 795 transitions.
[2024-11-03 12:54:30,544 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47)
[2024-11-03 12:54:30,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 506 states and 795 transitions.
[2024-11-03 12:54:30,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:54:30,549 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:54:30,549 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:30,552 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:54:30,749 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:30,750 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:54:30,750 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:54:30,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -182218319, now seen corresponding path program 1 times
[2024-11-03 12:54:30,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:54:30,751 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551176862]
[2024-11-03 12:54:30,751 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:54:30,751 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:54:30,751 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:30,752 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:54:30,753 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:54:30,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:54:30,851 INFO  L255         TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:54:30,855 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:54:34,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 1018 proven. 120 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked.
[2024-11-03 12:54:34,055 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:54:36,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 4324 backedges. 18 proven. 120 refuted. 0 times theorem prover too weak. 4186 trivial. 0 not checked.
[2024-11-03 12:54:36,443 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:54:36,443 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551176862]
[2024-11-03 12:54:36,443 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1551176862] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:54:36,443 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:54:36,443 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2024-11-03 12:54:36,443 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465195513]
[2024-11-03 12:54:36,443 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:54:36,444 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-03 12:54:36,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:54:36,445 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-03 12:54:36,445 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:54:36,445 INFO  L87              Difference]: Start difference. First operand 506 states and 795 transitions. Second operand  has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:54:42,781 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:46,786 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:54:50,788 WARN  L539   Checker$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 12:54:50,796 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:54:50,796 INFO  L93              Difference]: Finished difference Result 725 states and 1123 transitions.
[2024-11-03 12:54:50,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 12:54:50,855 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 306
[2024-11-03 12:54:50,855 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:54:50,859 INFO  L225             Difference]: With dead ends: 725
[2024-11-03 12:54:50,859 INFO  L226             Difference]: Without dead ends: 313
[2024-11-03 12:54:50,860 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 604 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182
[2024-11-03 12:54:50,860 INFO  L432           NwaCegarLoop]: 161 mSDtfsCounter, 302 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 124 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2024-11-03 12:54:50,861 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 387 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 267 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time]
[2024-11-03 12:54:50,861 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2024-11-03 12:54:50,884 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 299.
[2024-11-03 12:54:50,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 299 states, 190 states have (on average 1.305263157894737) internal successors, (248), 191 states have internal predecessors, (248), 102 states have call successors, (102), 6 states have call predecessors, (102), 6 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102)
[2024-11-03 12:54:50,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 452 transitions.
[2024-11-03 12:54:50,887 INFO  L78                 Accepts]: Start accepts. Automaton has 299 states and 452 transitions. Word has length 306
[2024-11-03 12:54:50,888 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:54:50,888 INFO  L471      AbstractCegarLoop]: Abstraction has 299 states and 452 transitions.
[2024-11-03 12:54:50,888 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (87), 2 states have call predecessors, (87), 4 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-03 12:54:50,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 299 states and 452 transitions.
[2024-11-03 12:54:50,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2024-11-03 12:54:50,890 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:54:50,890 INFO  L215           NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:50,894 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0
[2024-11-03 12:54:51,091 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:51,092 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:54:51,092 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:54:51,092 INFO  L85        PathProgramCache]: Analyzing trace with hash 1734752173, now seen corresponding path program 1 times
[2024-11-03 12:54:51,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:54:51,092 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269263933]
[2024-11-03 12:54:51,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:54:51,093 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:54:51,093 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:54:51,094 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 12:54:51,095 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process
[2024-11-03 12:54:51,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:54:51,189 INFO  L255         TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-03 12:54:51,193 INFO  L278         TraceCheckSpWp]: Computing forward predicates...