/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-28.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:48:06,598 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:48:06,662 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 12:48:06,667 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:48:06,668 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:48:06,695 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:48:06,695 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:48:06,696 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:48:06,696 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:48:06,697 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:48:06,697 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:48:06,697 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:48:06,698 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:48:06,700 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:48:06,700 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:48:06,701 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:48:06,701 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:48:06,701 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:48:06,701 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:48:06,702 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:48:06,702 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:48:06,706 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:48:06,707 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:48:06,707 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:48:06,707 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:48:06,707 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:48:06,707 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:48:06,708 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:48:06,708 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:48:06,708 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:48:06,708 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:48:06,708 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:48:06,709 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:48:06,709 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:48:06,709 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:48:06,709 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:48:06,710 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:48:06,710 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:48:06,710 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:48:06,710 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:48:06,710 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:48:06,711 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:48:06,711 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:48:06,711 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:48:06,711 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:48:06,945 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:48:06,971 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:48:06,973 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:48:06,975 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:48:06,975 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:48:06,976 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-28.i
[2024-11-03 12:48:08,559 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:48:08,785 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:48:08,785 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-28.i
[2024-11-03 12:48:08,800 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0684ca16f/95ad8e4cf6b4425eaa5c5a7ee754ee86/FLAGa42b0edd2
[2024-11-03 12:48:09,137 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0684ca16f/95ad8e4cf6b4425eaa5c5a7ee754ee86
[2024-11-03 12:48:09,139 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:48:09,140 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:48:09,141 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:48:09,141 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:48:09,146 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:48:09,147 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,148 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2345cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09, skipping insertion in model container
[2024-11-03 12:48:09,148 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,193 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:48:09,384 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-28.i[916,929]
[2024-11-03 12:48:09,531 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:48:09,547 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:48:09,559 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-28.i[916,929]
[2024-11-03 12:48:09,660 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:48:09,692 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:48:09,692 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09 WrapperNode
[2024-11-03 12:48:09,692 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:48:09,694 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:48:09,694 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:48:09,694 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:48:09,701 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,719 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,756 INFO  L138                Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337
[2024-11-03 12:48:09,757 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:48:09,758 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:48:09,758 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:48:09,758 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:48:09,769 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,773 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,784 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,828 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 12:48:09,828 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,829 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,858 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,863 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,867 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,874 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,884 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:48:09,888 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:48:09,888 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:48:09,888 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:48:09,889 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (1/1) ...
[2024-11-03 12:48:09,894 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:48:09,907 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:48:09,920 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 12:48:09,922 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 12:48:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:48:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:48:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:48:09,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:48:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:48:09,948 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:48:10,046 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:48:10,048 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:48:17,426 INFO  L?                        ?]: Removed 44 outVars from TransFormulas that were not future-live.
[2024-11-03 12:48:17,426 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:48:17,446 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:48:17,446 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:48:17,447 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:48:17 BoogieIcfgContainer
[2024-11-03 12:48:17,447 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:48:17,450 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:48:17,450 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:48:17,454 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:48:17,454 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:48:09" (1/3) ...
[2024-11-03 12:48:17,455 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46befe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:48:17, skipping insertion in model container
[2024-11-03 12:48:17,456 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:48:09" (2/3) ...
[2024-11-03 12:48:17,456 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46befe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:48:17, skipping insertion in model container
[2024-11-03 12:48:17,456 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:48:17" (3/3) ...
[2024-11-03 12:48:17,458 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-28.i
[2024-11-03 12:48:17,474 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:48:17,475 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:48:17,545 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:48:17,552 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;@21428f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:48:17,552 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:48:17,559 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 144 states, 98 states have (on average 1.5204081632653061) internal successors, (149), 99 states have internal predecessors, (149), 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 12:48:17,580 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 288
[2024-11-03 12:48:17,580 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:48:17,581 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, 1, 1, 1, 1]
[2024-11-03 12:48:17,582 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:48:17,587 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:48:17,588 INFO  L85        PathProgramCache]: Analyzing trace with hash -1673006911, now seen corresponding path program 1 times
[2024-11-03 12:48:17,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:48:17,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040913998]
[2024-11-03 12:48:17,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:48:17,601 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:48:17,602 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:48:17,604 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 12:48:17,606 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:48:17,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:48:17,870 INFO  L255         TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:48:17,894 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:48:17,971 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 12:48:17,971 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:48:19,634 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 12:48:19,636 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:48:19,636 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040913998]
[2024-11-03 12:48:19,637 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1040913998] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:48:19,637 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:48:19,637 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:48:19,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203733502]
[2024-11-03 12:48:19,640 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:48:19,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:48:19,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:48:19,672 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:48:19,672 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:48:19,675 INFO  L87              Difference]: Start difference. First operand  has 144 states, 98 states have (on average 1.5204081632653061) internal successors, (149), 99 states have internal predecessors, (149), 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 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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 12:48:19,714 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:48:19,715 INFO  L93              Difference]: Finished difference Result 281 states and 507 transitions.
[2024-11-03 12:48:19,718 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:48:19,719 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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 287
[2024-11-03 12:48:19,720 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:48:19,728 INFO  L225             Difference]: With dead ends: 281
[2024-11-03 12:48:19,728 INFO  L226             Difference]: Without dead ends: 140
[2024-11-03 12:48:19,732 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 572 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 12:48:19,735 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 12:48:19,736 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 12:48:19,750 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2024-11-03 12:48:19,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2024-11-03 12:48:19,779 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140 states, 95 states have (on average 1.4842105263157894) internal successors, (141), 95 states have internal predecessors, (141), 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 12:48:19,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 227 transitions.
[2024-11-03 12:48:19,793 INFO  L78                 Accepts]: Start accepts. Automaton has 140 states and 227 transitions. Word has length 287
[2024-11-03 12:48:19,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:48:19,794 INFO  L471      AbstractCegarLoop]: Abstraction has 140 states and 227 transitions.
[2024-11-03 12:48:19,795 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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 12:48:19,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 140 states and 227 transitions.
[2024-11-03 12:48:19,802 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 288
[2024-11-03 12:48:19,802 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:48:19,803 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, 1, 1, 1, 1]
[2024-11-03 12:48:19,807 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 12:48:20,003 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:48:20,004 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:48:20,005 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:48:20,005 INFO  L85        PathProgramCache]: Analyzing trace with hash 100813819, now seen corresponding path program 1 times
[2024-11-03 12:48:20,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:48:20,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819603370]
[2024-11-03 12:48:20,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:48:20,006 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:48:20,006 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:48:20,008 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 12:48:20,010 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:48:20,189 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:48:20,195 INFO  L255         TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:48:20,203 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:48:22,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1836 proven. 57 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked.
[2024-11-03 12:48:22,880 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:48:25,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 69 proven. 57 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 12:48:25,642 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:48:25,643 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819603370]
[2024-11-03 12:48:25,643 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1819603370] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:48:25,644 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:48:25,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2024-11-03 12:48:25,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990288933]
[2024-11-03 12:48:25,645 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:48:25,647 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-03 12:48:25,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:48:25,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-03 12:48:25,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-03 12:48:25,649 INFO  L87              Difference]: Start difference. First operand 140 states and 227 transitions. Second operand  has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63)
[2024-11-03 12:48:32,009 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:48:36,019 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:48:40,022 WARN  L539   Checker$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 12:48:40,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:48:40,027 INFO  L93              Difference]: Finished difference Result 282 states and 454 transitions.
[2024-11-03 12:48:40,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-03 12:48:40,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 287
[2024-11-03 12:48:40,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:48:40,121 INFO  L225             Difference]: With dead ends: 282
[2024-11-03 12:48:40,122 INFO  L226             Difference]: Without dead ends: 145
[2024-11-03 12:48:40,123 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 566 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90
[2024-11-03 12:48:40,124 INFO  L432           NwaCegarLoop]: 171 mSDtfsCounter, 124 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time
[2024-11-03 12:48:40,124 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 425 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 234 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time]
[2024-11-03 12:48:40,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 145 states.
[2024-11-03 12:48:40,140 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143.
[2024-11-03 12:48:40,140 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 97 states have internal predecessors, (139), 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 12:48:40,142 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 225 transitions.
[2024-11-03 12:48:40,143 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 225 transitions. Word has length 287
[2024-11-03 12:48:40,143 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:48:40,144 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 225 transitions.
[2024-11-03 12:48:40,144 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63)
[2024-11-03 12:48:40,144 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 225 transitions.
[2024-11-03 12:48:40,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 289
[2024-11-03 12:48:40,148 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:48:40,149 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, 1, 1, 1, 1, 1]
[2024-11-03 12:48:40,153 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:48:40,350 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:48:40,351 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:48:40,351 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:48:40,351 INFO  L85        PathProgramCache]: Analyzing trace with hash -1675160130, now seen corresponding path program 1 times
[2024-11-03 12:48:40,351 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:48:40,352 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345298727]
[2024-11-03 12:48:40,352 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:48:40,352 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:48:40,352 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:48:40,354 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 12:48:40,356 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:48:40,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:48:40,560 INFO  L255         TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-03 12:48:40,567 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:48:48,377 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 1342 proven. 96 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked.
[2024-11-03 12:48:48,378 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:48:52,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked.
[2024-11-03 12:48:52,299 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:48:52,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345298727]
[2024-11-03 12:48:52,299 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1345298727] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 12:48:52,300 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 12:48:52,300 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13
[2024-11-03 12:48:52,300 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014829140]
[2024-11-03 12:48:52,301 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 12:48:52,302 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-03 12:48:52,302 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:48:52,303 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-03 12:48:52,303 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2024-11-03 12:48:52,304 INFO  L87              Difference]: Start difference. First operand 143 states and 225 transitions. Second operand  has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-03 12:49:01,677 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:49:05,685 WARN  L539   Checker$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 12:49:09,691 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:49:13,702 WARN  L539   Checker$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 12:49:17,707 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:49:21,710 WARN  L539   Checker$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 12:49:23,705 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 12:49:29,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:49:29,287 INFO  L93              Difference]: Finished difference Result 533 states and 816 transitions.
[2024-11-03 12:49:29,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2024-11-03 12:49:29,288 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86) Word has length 288
[2024-11-03 12:49:29,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:49:29,293 INFO  L225             Difference]: With dead ends: 533
[2024-11-03 12:49:29,293 INFO  L226             Difference]: Without dead ends: 393
[2024-11-03 12:49:29,295 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=462, Invalid=1178, Unknown=0, NotChecked=0, Total=1640
[2024-11-03 12:49:29,296 INFO  L432           NwaCegarLoop]: 224 mSDtfsCounter, 798 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 495 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time
[2024-11-03 12:49:29,296 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 803 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 883 Invalid, 6 Unknown, 0 Unchecked, 33.6s Time]
[2024-11-03 12:49:29,301 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2024-11-03 12:49:29,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 227.
[2024-11-03 12:49:29,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 227 states, 133 states have (on average 1.2481203007518797) internal successors, (166), 134 states have internal predecessors, (166), 86 states have call successors, (86), 7 states have call predecessors, (86), 7 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86)
[2024-11-03 12:49:29,354 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 338 transitions.
[2024-11-03 12:49:29,355 INFO  L78                 Accepts]: Start accepts. Automaton has 227 states and 338 transitions. Word has length 288
[2024-11-03 12:49:29,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:49:29,356 INFO  L471      AbstractCegarLoop]: Abstraction has 227 states and 338 transitions.
[2024-11-03 12:49:29,356 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 4 states have call successors, (86), 3 states have call predecessors, (86), 5 states have return successors, (86), 4 states have call predecessors, (86), 4 states have call successors, (86)
[2024-11-03 12:49:29,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 227 states and 338 transitions.
[2024-11-03 12:49:29,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2024-11-03 12:49:29,359 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:49:29,360 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, 1, 1, 1, 1, 1, 1]
[2024-11-03 12:49:29,402 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:49:29,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:49:29,561 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:49:29,561 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:49:29,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 1154141629, now seen corresponding path program 1 times
[2024-11-03 12:49:29,562 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:49:29,562 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016222357]
[2024-11-03 12:49:29,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:49:29,562 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:49:29,562 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:49:29,564 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 12:49:29,565 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:49:29,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:49:29,763 INFO  L255         TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-03 12:49:29,767 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:49:37,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 3612 backedges. 2394 proven. 204 refuted. 0 times theorem prover too weak. 1014 trivial. 0 not checked.
[2024-11-03 12:49:37,952 INFO  L311         TraceCheckSpWp]: Computing backward predicates...