/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:27:11,650 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:27:11,728 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:27:11,734 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:27:11,735 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:27:11,757 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:27:11,758 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:27:11,758 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:27:11,758 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:27:11,759 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:27:11,759 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:27:11,760 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:27:11,760 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:27:11,761 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:27:11,761 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:27:11,762 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:27:11,762 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:27:11,762 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:27:11,763 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:27:11,763 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:27:11,763 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:27:11,764 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:27:11,764 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:27:11,764 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:27:11,765 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:27:11,765 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:27:11,765 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:27:11,766 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:27:11,766 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:27:11,766 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:27:11,766 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:27:11,767 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:27:11,767 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:27:11,767 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:27:11,768 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:27:11,768 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:27:11,768 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:27:11,768 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:27:11,769 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:27:11,769 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:27:11,769 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:27:11,770 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:27:11,770 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:27:11,770 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:27:11,770 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:11,991 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:27:12,008 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:27:12,011 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:27:12,012 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:27:12,012 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:27:12,013 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i
[2024-11-02 21:27:13,469 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:27:13,652 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:27:13,653 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i
[2024-11-02 21:27:13,661 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1421d6f7e/4da94d40a35240ef80b7a1c29f31feee/FLAG0ca4866de
[2024-11-02 21:27:13,675 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1421d6f7e/4da94d40a35240ef80b7a1c29f31feee
[2024-11-02 21:27:13,677 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:27:13,678 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:27:13,679 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:27:13,679 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:27:13,685 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:27:13,686 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:13,687 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9ddc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13, skipping insertion in model container
[2024-11-02 21:27:13,687 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:13,709 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:27:13,872 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_no-floats_file-66.i[916,929]
[2024-11-02 21:27:13,904 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:27:13,922 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:27:13,937 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_no-floats_file-66.i[916,929]
[2024-11-02 21:27:13,955 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:27:13,974 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:27:13,977 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13 WrapperNode
[2024-11-02 21:27:13,977 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:27:13,978 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:27:13,978 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:27:13,979 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:27:13,983 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:13,992 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,023 INFO  L138                Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101
[2024-11-02 21:27:14,024 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:27:14,027 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:27:14,027 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:27:14,027 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:27:14,037 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,037 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,040 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,054 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].
[2024-11-02 21:27:14,054 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,054 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,061 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,064 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,065 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,067 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,069 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:27:14,070 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:27:14,070 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:27:14,071 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:27:14,071 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (1/1) ...
[2024-11-02 21:27:14,076 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:27:14,088 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:14,105 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)
[2024-11-02 21:27:14,108 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
[2024-11-02 21:27:14,135 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:27:14,136 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:27:14,136 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:27:14,136 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:27:14,136 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:27:14,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:27:14,235 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:27:14,238 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:27:14,499 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-02 21:27:14,499 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:27:14,518 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:27:14,518 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:27:14,519 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:14 BoogieIcfgContainer
[2024-11-02 21:27:14,519 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:27:14,522 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:27:14,523 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:27:14,526 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:27:14,527 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:27:13" (1/3) ...
[2024-11-02 21:27:14,528 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6be6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:14, skipping insertion in model container
[2024-11-02 21:27:14,528 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:13" (2/3) ...
[2024-11-02 21:27:14,528 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6be6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:14, skipping insertion in model container
[2024-11-02 21:27:14,528 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:14" (3/3) ...
[2024-11-02 21:27:14,530 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-66.i
[2024-11-02 21:27:14,546 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:27:14,547 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:27:14,646 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:27:14,654 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;@383775e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:27:14,655 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:27:14,659 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 21:27:14,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 90
[2024-11-02 21:27:14,670 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:14,671 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:14,671 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:14,677 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:14,678 INFO  L85        PathProgramCache]: Analyzing trace with hash -1691062779, now seen corresponding path program 1 times
[2024-11-02 21:27:14,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:14,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258334324]
[2024-11-02 21:27:14,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:14,689 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:14,689 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:14,690 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:14,692 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:27:14,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:14,837 INFO  L255         TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:14,844 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:27:14,880 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2024-11-02 21:27:14,881 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:27:14,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2024-11-02 21:27:14,991 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:27:14,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258334324]
[2024-11-02 21:27:14,994 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1258334324] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:27:14,994 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:27:14,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:27:14,996 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102088312]
[2024-11-02 21:27:14,997 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:27:15,000 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:27:15,001 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:27:15,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:27:15,025 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:27:15,027 INFO  L87              Difference]: Start difference. First operand  has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14)
[2024-11-02 21:27:15,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:27:15,053 INFO  L93              Difference]: Finished difference Result 83 states and 140 transitions.
[2024-11-02 21:27:15,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:27:15,055 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89
[2024-11-02 21:27:15,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:27:15,062 INFO  L225             Difference]: With dead ends: 83
[2024-11-02 21:27:15,062 INFO  L226             Difference]: Without dead ends: 41
[2024-11-02 21:27:15,066 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:27:15,070 INFO  L432           NwaCegarLoop]: 59 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, 59 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
[2024-11-02 21:27:15,072 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:27:15,087 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-11-02 21:27:15,104 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-11-02 21:27:15,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 21:27:15,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions.
[2024-11-02 21:27:15,108 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 89
[2024-11-02 21:27:15,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:27:15,108 INFO  L471      AbstractCegarLoop]: Abstraction has 41 states and 59 transitions.
[2024-11-02 21:27:15,109 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14)
[2024-11-02 21:27:15,109 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions.
[2024-11-02 21:27:15,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 90
[2024-11-02 21:27:15,113 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:15,113 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:15,135 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:27:15,318 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:15,319 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:15,320 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:15,320 INFO  L85        PathProgramCache]: Analyzing trace with hash -1552521403, now seen corresponding path program 1 times
[2024-11-02 21:27:15,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:15,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862297902]
[2024-11-02 21:27:15,321 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:15,321 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:15,322 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:15,324 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:15,325 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:27:15,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:15,412 INFO  L255         TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:15,417 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:27:15,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 105 proven. 33 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked.
[2024-11-02 21:27:15,649 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:27:15,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked.
[2024-11-02 21:27:15,960 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:27:15,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862297902]
[2024-11-02 21:27:15,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [862297902] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 21:27:15,961 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 21:27:15,961 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2024-11-02 21:27:15,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131669744]
[2024-11-02 21:27:15,962 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 21:27:15,965 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:27:15,965 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:27:15,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:27:15,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:27:15,967 INFO  L87              Difference]: Start difference. First operand 41 states and 59 transitions. Second operand  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)
[2024-11-02 21:27:16,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:27:16,157 INFO  L93              Difference]: Finished difference Result 85 states and 120 transitions.
[2024-11-02 21:27:16,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 21:27:16,158 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 89
[2024-11-02 21:27:16,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:27:16,160 INFO  L225             Difference]: With dead ends: 85
[2024-11-02 21:27:16,160 INFO  L226             Difference]: Without dead ends: 47
[2024-11-02 21:27:16,161 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110
[2024-11-02 21:27:16,163 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 37 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:27:16,164 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 90 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 21:27:16,166 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-02 21:27:16,180 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45.
[2024-11-02 21:27:16,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 21:27:16,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions.
[2024-11-02 21:27:16,184 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 89
[2024-11-02 21:27:16,186 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:27:16,186 INFO  L471      AbstractCegarLoop]: Abstraction has 45 states and 61 transitions.
[2024-11-02 21:27:16,186 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)
[2024-11-02 21:27:16,187 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions.
[2024-11-02 21:27:16,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-11-02 21:27:16,188 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:16,188 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:16,207 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-02 21:27:16,389 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:16,390 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:16,390 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:16,391 INFO  L85        PathProgramCache]: Analyzing trace with hash -828174430, now seen corresponding path program 1 times
[2024-11-02 21:27:16,391 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:16,391 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601380859]
[2024-11-02 21:27:16,391 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:16,392 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:16,392 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:16,394 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:16,397 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 21:27:16,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:16,478 INFO  L255         TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:16,482 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:27:16,754 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2024-11-02 21:27:16,754 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:27:16,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2024-11-02 21:27:16,920 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:27:16,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601380859]
[2024-11-02 21:27:16,920 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [601380859] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:27:16,920 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:27:16,920 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 21:27:16,920 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883081411]
[2024-11-02 21:27:16,921 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:27:16,921 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:27:16,921 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:27:16,922 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:27:16,922 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-02 21:27:16,923 INFO  L87              Difference]: Start difference. First operand 45 states and 61 transitions. Second operand  has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2024-11-02 21:27:17,084 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:27:17,085 INFO  L93              Difference]: Finished difference Result 130 states and 178 transitions.
[2024-11-02 21:27:17,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 21:27:17,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 90
[2024-11-02 21:27:17,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:27:17,092 INFO  L225             Difference]: With dead ends: 130
[2024-11-02 21:27:17,092 INFO  L226             Difference]: Without dead ends: 88
[2024-11-02 21:27:17,092 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-02 21:27:17,093 INFO  L432           NwaCegarLoop]: 53 mSDtfsCounter, 42 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:27:17,094 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 302 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 21:27:17,097 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2024-11-02 21:27:17,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 81.
[2024-11-02 21:27:17,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 48 states have internal predecessors, (56), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28)
[2024-11-02 21:27:17,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions.
[2024-11-02 21:27:17,128 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 90
[2024-11-02 21:27:17,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:27:17,129 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 112 transitions.
[2024-11-02 21:27:17,129 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2024-11-02 21:27:17,129 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions.
[2024-11-02 21:27:17,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-11-02 21:27:17,131 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:17,131 INFO  L215           NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:17,154 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:27:17,333 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:17,334 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:17,335 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:17,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -830021472, now seen corresponding path program 1 times
[2024-11-02 21:27:17,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:17,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761045243]
[2024-11-02 21:27:17,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:17,335 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:17,336 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:17,338 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:17,341 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 21:27:17,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:17,421 INFO  L255         TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:17,430 INFO  L278         TraceCheckSpWp]: Computing forward predicates...