/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_floatingpointinfluence_has-floats_file-76.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 12:12:55,770 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 12:12:55,842 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 12:12:55,847 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 12:12:55,848 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 12:12:55,873 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 12:12:55,874 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 12:12:55,874 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 12:12:55,875 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 12:12:55,876 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 12:12:55,877 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 12:12:55,877 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 12:12:55,878 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 12:12:55,878 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 12:12:55,879 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 12:12:55,879 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 12:12:55,879 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 12:12:55,880 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 12:12:55,880 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 12:12:55,880 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 12:12:55,880 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 12:12:55,884 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 12:12:55,884 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 12:12:55,884 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 12:12:55,884 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 12:12:55,885 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 12:12:55,885 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 12:12:55,885 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 12:12:55,885 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 12:12:55,885 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 12:12:55,886 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 12:12:55,886 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 12:12:55,886 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 12:12:55,886 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 12:12:55,886 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:12:55,887 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 12:12:55,887 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 12:12:55,888 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 12:12:55,888 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 12:12:55,888 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 12:12:55,888 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 12:12:55,889 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 12:12:55,889 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 12:12:55,889 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 12:12:55,889 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 12:12:56,132 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 12:12:56,156 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 12:12:56,159 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 12:12:56,160 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 12:12:56,161 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 12:12:56,162 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-03 12:12:57,540 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 12:12:57,747 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 12:12:57,748 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-03 12:12:57,758 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2d73e11/0d49e9fec7a740d798be3e2871bc9e4c/FLAGe68e0ecca
[2024-11-03 12:12:57,779 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa2d73e11/0d49e9fec7a740d798be3e2871bc9e4c
[2024-11-03 12:12:57,782 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 12:12:57,785 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 12:12:57,788 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 12:12:57,789 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 12:12:57,794 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 12:12:57,795 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:12:57" (1/1) ...
[2024-11-03 12:12:57,796 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c6fc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:57, skipping insertion in model container
[2024-11-03 12:12:57,796 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:12:57" (1/1) ...
[2024-11-03 12:12:57,822 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 12:12:58,000 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_floatingpointinfluence_has-floats_file-76.i[917,930]
[2024-11-03 12:12:58,047 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:12:58,071 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 12:12:58,083 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_floatingpointinfluence_has-floats_file-76.i[917,930]
[2024-11-03 12:12:58,104 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 12:12:58,127 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 12:12:58,128 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58 WrapperNode
[2024-11-03 12:12:58,128 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 12:12:58,129 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 12:12:58,129 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 12:12:58,129 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 12:12:58,135 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,145 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,167 INFO  L138                Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106
[2024-11-03 12:12:58,168 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 12:12:58,168 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 12:12:58,168 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 12:12:58,169 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 12:12:58,181 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,181 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,184 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,197 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 12:12:58,197 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,197 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,212 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,215 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,217 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,218 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,221 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 12:12:58,222 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 12:12:58,222 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 12:12:58,223 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 12:12:58,224 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (1/1) ...
[2024-11-03 12:12:58,228 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 12:12:58,238 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 12:12:58,253 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 12:12:58,268 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 12:12:58,292 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 12:12:58,292 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 12:12:58,292 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 12:12:58,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 12:12:58,292 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 12:12:58,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 12:12:58,373 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 12:12:58,377 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 12:12:58,922 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 12:12:58,922 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 12:12:58,937 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 12:12:58,937 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 12:12:58,937 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:12:58 BoogieIcfgContainer
[2024-11-03 12:12:58,938 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 12:12:58,940 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 12:12:58,940 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 12:12:58,942 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 12:12:58,943 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:12:57" (1/3) ...
[2024-11-03 12:12:58,943 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6107c49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:12:58, skipping insertion in model container
[2024-11-03 12:12:58,943 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:12:58" (2/3) ...
[2024-11-03 12:12:58,943 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6107c49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:12:58, skipping insertion in model container
[2024-11-03 12:12:58,944 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:12:58" (3/3) ...
[2024-11-03 12:12:58,945 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-76.i
[2024-11-03 12:12:58,958 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 12:12:58,958 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 12:12:59,007 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 12:12:59,013 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;@77817f23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 12:12:59,013 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 12:12:59,016 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:12:59,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 98
[2024-11-03 12:12:59,025 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:12:59,026 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:59,026 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:12:59,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:12:59,029 INFO  L85        PathProgramCache]: Analyzing trace with hash -286747828, now seen corresponding path program 1 times
[2024-11-03 12:12:59,035 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:12:59,035 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261914893]
[2024-11-03 12:12:59,036 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:12:59,037 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:12:59,038 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:12:59,039 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 12:12:59,040 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 12:12:59,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:12:59,162 INFO  L255         TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 12:12:59,171 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:12:59,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:12:59,215 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:12:59,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:12:59,346 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:12:59,346 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261914893]
[2024-11-03 12:12:59,347 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [261914893] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:12:59,348 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:12:59,348 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 12:12:59,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076742167]
[2024-11-03 12:12:59,350 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:12:59,354 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 12:12:59,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:12:59,380 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 12:12:59,382 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 12:12:59,384 INFO  L87              Difference]: Start difference. First operand  has 51 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:12:59,410 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:12:59,410 INFO  L93              Difference]: Finished difference Result 95 states and 161 transitions.
[2024-11-03 12:12:59,412 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 12:12:59,414 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97
[2024-11-03 12:12:59,415 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:12:59,422 INFO  L225             Difference]: With dead ends: 95
[2024-11-03 12:12:59,423 INFO  L226             Difference]: Without dead ends: 47
[2024-11-03 12:12:59,425 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 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 12:12:59,427 INFO  L432           NwaCegarLoop]: 68 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, 68 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 12:12:59,428 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 12:12:59,440 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-03 12:12:59,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-03 12:12:59,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:12:59,464 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions.
[2024-11-03 12:12:59,466 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 97
[2024-11-03 12:12:59,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:12:59,468 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 68 transitions.
[2024-11-03 12:12:59,468 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:12:59,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions.
[2024-11-03 12:12:59,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-03 12:12:59,471 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:12:59,472 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:59,475 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0
[2024-11-03 12:12:59,673 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:12:59,674 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:12:59,675 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:12:59,675 INFO  L85        PathProgramCache]: Analyzing trace with hash 357321277, now seen corresponding path program 1 times
[2024-11-03 12:12:59,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:12:59,676 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471089153]
[2024-11-03 12:12:59,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:12:59,676 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:12:59,676 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:12:59,678 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 12:12:59,680 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 12:12:59,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:12:59,761 INFO  L255         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 12:12:59,766 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:13:00,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:00,143 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:13:00,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:00,243 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:13:00,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471089153]
[2024-11-03 12:13:00,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1471089153] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:13:00,244 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:13:00,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 6
[2024-11-03 12:13:00,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39729446]
[2024-11-03 12:13:00,245 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:13:00,248 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 12:13:00,249 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:13:00,250 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 12:13:00,250 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 12:13:00,250 INFO  L87              Difference]: Start difference. First operand 47 states and 68 transitions. Second operand  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-03 12:13:00,845 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:13:00,845 INFO  L93              Difference]: Finished difference Result 147 states and 214 transitions.
[2024-11-03 12:13:00,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-03 12:13:00,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 98
[2024-11-03 12:13:00,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:13:00,855 INFO  L225             Difference]: With dead ends: 147
[2024-11-03 12:13:00,855 INFO  L226             Difference]: Without dead ends: 103
[2024-11-03 12:13:00,858 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-03 12:13:00,860 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 55 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-03 12:13:00,861 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 276 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-03 12:13:00,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2024-11-03 12:13:00,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 47.
[2024-11-03 12:13:00,878 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:13:00,881 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions.
[2024-11-03 12:13:00,882 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 98
[2024-11-03 12:13:00,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:13:00,882 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 67 transitions.
[2024-11-03 12:13:00,883 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-11-03 12:13:00,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions.
[2024-11-03 12:13:00,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2024-11-03 12:13:00,885 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:13:00,885 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:00,889 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 12:13:01,086 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:01,087 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:13:01,088 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:13:01,088 INFO  L85        PathProgramCache]: Analyzing trace with hash -35705733, now seen corresponding path program 1 times
[2024-11-03 12:13:01,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:13:01,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750018555]
[2024-11-03 12:13:01,088 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:13:01,089 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:13:01,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:01,090 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 12:13:01,091 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 12:13:01,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:13:01,162 INFO  L255         TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 12:13:01,165 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:13:01,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:01,211 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:13:01,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:01,319 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:13:01,320 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750018555]
[2024-11-03 12:13:01,320 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [750018555] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:13:01,320 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:13:01,320 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-03 12:13:01,320 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092891227]
[2024-11-03 12:13:01,320 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:13:01,324 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-03 12:13:01,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:13:01,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-03 12:13:01,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:13:01,325 INFO  L87              Difference]: Start difference. First operand 47 states and 67 transitions. Second operand  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:13:01,491 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:13:01,492 INFO  L93              Difference]: Finished difference Result 91 states and 131 transitions.
[2024-11-03 12:13:01,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:13:01,506 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 98
[2024-11-03 12:13:01,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:13:01,508 INFO  L225             Difference]: With dead ends: 91
[2024-11-03 12:13:01,508 INFO  L226             Difference]: Without dead ends: 47
[2024-11-03 12:13:01,509 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-03 12:13:01,510 INFO  L432           NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-03 12:13:01,511 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-03 12:13:01,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-03 12:13:01,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-03 12:13:01,519 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:13:01,521 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions.
[2024-11-03 12:13:01,521 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 98
[2024-11-03 12:13:01,522 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:13:01,523 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 66 transitions.
[2024-11-03 12:13:01,523 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:13:01,523 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions.
[2024-11-03 12:13:01,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-03 12:13:01,528 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:13:01,528 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:01,532 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 12:13:01,729 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:01,729 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:13:01,730 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:13:01,730 INFO  L85        PathProgramCache]: Analyzing trace with hash -105577621, now seen corresponding path program 1 times
[2024-11-03 12:13:01,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:13:01,731 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502644829]
[2024-11-03 12:13:01,731 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:13:01,731 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:13:01,731 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:01,733 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 12:13:01,734 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 12:13:01,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:13:01,800 INFO  L255         TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 12:13:01,806 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 12:13:01,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:01,821 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 12:13:01,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2024-11-03 12:13:01,893 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 12:13:01,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502644829]
[2024-11-03 12:13:01,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1502644829] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 12:13:01,894 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 12:13:01,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 12:13:01,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395437054]
[2024-11-03 12:13:01,894 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 12:13:01,895 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 12:13:01,898 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 12:13:01,899 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 12:13:01,899 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 12:13:01,900 INFO  L87              Difference]: Start difference. First operand 47 states and 66 transitions. Second operand  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:13:02,164 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 12:13:02,164 INFO  L93              Difference]: Finished difference Result 131 states and 185 transitions.
[2024-11-03 12:13:02,171 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 12:13:02,171 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99
[2024-11-03 12:13:02,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 12:13:02,173 INFO  L225             Difference]: With dead ends: 131
[2024-11-03 12:13:02,173 INFO  L226             Difference]: Without dead ends: 87
[2024-11-03 12:13:02,174 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 12:13:02,175 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 56 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-03 12:13:02,176 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 125 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-03 12:13:02,176 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-11-03 12:13:02,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 51.
[2024-11-03 12:13:02,183 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2024-11-03 12:13:02,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions.
[2024-11-03 12:13:02,184 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 99
[2024-11-03 12:13:02,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 12:13:02,185 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 70 transitions.
[2024-11-03 12:13:02,185 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2024-11-03 12:13:02,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions.
[2024-11-03 12:13:02,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2024-11-03 12:13:02,186 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 12:13:02,186 INFO  L215           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:13:02,190 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 12:13:02,388 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:02,389 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 12:13:02,389 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 12:13:02,390 INFO  L85        PathProgramCache]: Analyzing trace with hash -48319319, now seen corresponding path program 1 times
[2024-11-03 12:13:02,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 12:13:02,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722175441]
[2024-11-03 12:13:02,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 12:13:02,390 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 12:13:02,390 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 12:13:02,392 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 12:13:02,394 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 12:13:02,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 12:13:02,451 INFO  L255         TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 12:13:02,457 INFO  L278         TraceCheckSpWp]: Computing forward predicates...