/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_operatoramount_amount250_file-52.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:54:45,620 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:54:45,683 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 21:54:45,686 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:54:45,687 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:54:45,709 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:54:45,709 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:54:45,710 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:54:45,710 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:54:45,714 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:54:45,715 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:54:45,715 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:54:45,715 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:54:45,715 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:54:45,716 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:54:45,716 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:54:45,716 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:54:45,716 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:54:45,716 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:54:45,717 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:54:45,717 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:54:45,719 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:54:45,720 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:54:45,720 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:54:45,720 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:54:45,720 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:54:45,721 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:54:45,721 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:54:45,721 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:54:45,721 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:54:45,721 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:54:45,721 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:54:45,722 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:54:45,722 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:54:45,722 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:54:45,722 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:54:45,723 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:54:45,723 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:54:45,723 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:54:45,723 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:54:45,914 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:54:45,945 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:54:45,948 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:54:45,949 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:54:45,949 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:54:45,950 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-52.i
[2024-11-02 21:54:47,302 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:54:47,539 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:54:47,540 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-52.i
[2024-11-02 21:54:47,552 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b7a99c4/094819ce2ca3405d8a90e9cfce71f554/FLAGe4dd20c4f
[2024-11-02 21:54:47,899 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18b7a99c4/094819ce2ca3405d8a90e9cfce71f554
[2024-11-02 21:54:47,901 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:54:47,902 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:54:47,903 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:54:47,903 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:54:47,908 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:54:47,909 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:54:47" (1/1) ...
[2024-11-02 21:54:47,909 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73054d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:47, skipping insertion in model container
[2024-11-02 21:54:47,910 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:54:47" (1/1) ...
[2024-11-02 21:54:47,948 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:54:48,079 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-52.i[916,929]
[2024-11-02 21:54:48,192 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:54:48,212 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:54:48,252 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-52.i[916,929]
[2024-11-02 21:54:48,312 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:54:48,329 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:54:48,330 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48 WrapperNode
[2024-11-02 21:54:48,330 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:54:48,331 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:54:48,331 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:54:48,331 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:54:48,336 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,351 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,409 INFO  L138                Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 342
[2024-11-02 21:54:48,409 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:54:48,410 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:54:48,410 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:54:48,410 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:54:48,418 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,418 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,426 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,439 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 21:54:48,440 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,440 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,463 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,470 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,478 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,484 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,493 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:54:48,494 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:54:48,494 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:54:48,494 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:54:48,495 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (1/1) ...
[2024-11-02 21:54:48,503 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:54:48,511 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:54:48,522 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 21:54:48,523 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 21:54:48,540 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:54:48,540 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:54:48,541 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:54:48,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:54:48,541 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:54:48,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:54:48,637 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:54:48,639 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:55:03,749 INFO  L?                        ?]: Removed 32 outVars from TransFormulas that were not future-live.
[2024-11-02 21:55:03,750 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:55:03,767 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:55:03,768 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:55:03,768 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:55:03 BoogieIcfgContainer
[2024-11-02 21:55:03,768 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:55:03,770 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:55:03,770 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:55:03,775 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:55:03,775 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:54:47" (1/3) ...
[2024-11-02 21:55:03,776 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afa9095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:55:03, skipping insertion in model container
[2024-11-02 21:55:03,776 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:54:48" (2/3) ...
[2024-11-02 21:55:03,776 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4afa9095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:55:03, skipping insertion in model container
[2024-11-02 21:55:03,776 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:55:03" (3/3) ...
[2024-11-02 21:55:03,778 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-52.i
[2024-11-02 21:55:03,792 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:55:03,792 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:55:03,841 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:55:03,848 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;@4a22c091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:55:03,849 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:55:03,856 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 138 states, 91 states have (on average 1.4835164835164836) internal successors, (135), 92 states have internal predecessors, (135), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-02 21:55:03,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 289
[2024-11-02 21:55:03,873 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:55:03,874 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:03,874 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:55:03,878 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:55:03,878 INFO  L85        PathProgramCache]: Analyzing trace with hash 669550825, now seen corresponding path program 1 times
[2024-11-02 21:55:03,885 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:55:03,885 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646369019]
[2024-11-02 21:55:03,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:55:03,887 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:55:03,888 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:55:03,889 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 21:55:03,892 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 21:55:04,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:55:04,754 INFO  L255         TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:55:04,778 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:55:04,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked.
[2024-11-02 21:55:04,823 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:55:07,280 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked.
[2024-11-02 21:55:07,281 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:55:07,281 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646369019]
[2024-11-02 21:55:07,281 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1646369019] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:55:07,281 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:55:07,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:55:07,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972910650]
[2024-11-02 21:55:07,283 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:55:07,287 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:55:07,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:55:07,302 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:55:07,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:55:07,304 INFO  L87              Difference]: Start difference. First operand  has 138 states, 91 states have (on average 1.4835164835164836) internal successors, (135), 92 states have internal predecessors, (135), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44)
[2024-11-02 21:55:07,331 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:55:07,331 INFO  L93              Difference]: Finished difference Result 269 states and 484 transitions.
[2024-11-02 21:55:07,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:55:07,333 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44) Word has length 288
[2024-11-02 21:55:07,334 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:55:07,340 INFO  L225             Difference]: With dead ends: 269
[2024-11-02 21:55:07,340 INFO  L226             Difference]: Without dead ends: 134
[2024-11-02 21:55:07,343 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 574 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 21:55:07,345 INFO  L432           NwaCegarLoop]: 215 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, 215 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 21:55:07,346 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:55:07,357 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 134 states.
[2024-11-02 21:55:07,383 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134.
[2024-11-02 21:55:07,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 134 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 88 states have internal predecessors, (127), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-02 21:55:07,388 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 215 transitions.
[2024-11-02 21:55:07,390 INFO  L78                 Accepts]: Start accepts. Automaton has 134 states and 215 transitions. Word has length 288
[2024-11-02 21:55:07,390 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:55:07,391 INFO  L471      AbstractCegarLoop]: Abstraction has 134 states and 215 transitions.
[2024-11-02 21:55:07,391 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 2 states have call successors, (44)
[2024-11-02 21:55:07,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 215 transitions.
[2024-11-02 21:55:07,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 289
[2024-11-02 21:55:07,397 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:55:07,397 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:07,481 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 21:55:07,598 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 21:55:07,600 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:55:07,601 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:55:07,601 INFO  L85        PathProgramCache]: Analyzing trace with hash 285767717, now seen corresponding path program 1 times
[2024-11-02 21:55:07,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:55:07,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735467954]
[2024-11-02 21:55:07,605 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:55:07,606 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:55:07,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:55:07,608 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 21:55:07,615 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 21:55:08,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:55:08,402 INFO  L255         TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 21:55:08,408 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:55:08,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-02 21:55:08,555 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:55:10,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-02 21:55:10,851 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:55:10,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735467954]
[2024-11-02 21:55:10,852 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [735467954] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:55:10,852 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:55:10,852 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 21:55:10,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292654858]
[2024-11-02 21:55:10,852 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:55:10,859 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 21:55:10,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:55:10,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 21:55:10,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:55:10,860 INFO  L87              Difference]: Start difference. First operand 134 states and 215 transitions. Second operand  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2024-11-02 21:55:15,444 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:55:19,455 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:55:19,658 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:55:19,658 INFO  L93              Difference]: Finished difference Result 311 states and 502 transitions.
[2024-11-02 21:55:19,660 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 21:55:19,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 288
[2024-11-02 21:55:19,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:55:19,663 INFO  L225             Difference]: With dead ends: 311
[2024-11-02 21:55:19,663 INFO  L226             Difference]: Without dead ends: 180
[2024-11-02 21:55:19,667 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 21:55:19,668 INFO  L432           NwaCegarLoop]: 280 mSDtfsCounter, 74 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2024-11-02 21:55:19,668 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 477 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time]
[2024-11-02 21:55:19,669 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 180 states.
[2024-11-02 21:55:19,690 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143.
[2024-11-02 21:55:19,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 143 states, 97 states have (on average 1.4329896907216495) internal successors, (139), 97 states have internal predecessors, (139), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-02 21:55:19,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 227 transitions.
[2024-11-02 21:55:19,714 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 227 transitions. Word has length 288
[2024-11-02 21:55:19,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:55:19,717 INFO  L471      AbstractCegarLoop]: Abstraction has 143 states and 227 transitions.
[2024-11-02 21:55:19,717 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44)
[2024-11-02 21:55:19,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 227 transitions.
[2024-11-02 21:55:19,724 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 289
[2024-11-02 21:55:19,724 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:55:19,726 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:55:19,808 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 21:55:19,926 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 21:55:19,927 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:55:19,928 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:55:19,928 INFO  L85        PathProgramCache]: Analyzing trace with hash 818714405, now seen corresponding path program 1 times
[2024-11-02 21:55:19,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:55:19,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884680743]
[2024-11-02 21:55:19,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:55:19,929 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:55:19,929 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:55:19,935 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 21:55:19,942 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 21:55:20,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:55:20,695 INFO  L255         TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 21:55:20,702 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:55:36,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-02 21:55:36,038 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:55:40,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked.
[2024-11-02 21:55:40,960 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:55:40,960 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884680743]
[2024-11-02 21:55:40,960 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [884680743] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:55:40,960 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:55:40,961 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 21:55:40,961 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541568224]
[2024-11-02 21:55:40,961 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:55:40,961 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:55:40,962 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:55:40,965 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:55:40,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:55:40,967 INFO  L87              Difference]: Start difference. First operand 143 states and 227 transitions. Second operand  has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-02 21:55:42,553 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:55:47,459 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:55:51,468 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:55:55,476 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:00,805 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:04,814 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:08,824 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:12,834 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:16,847 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:20,854 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:24,876 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:28,887 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 21:56:28,888 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:56:28,888 INFO  L93              Difference]: Finished difference Result 486 states and 777 transitions.
[2024-11-02 21:56:29,031 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 21:56:29,032 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 288
[2024-11-02 21:56:29,032 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:56:29,036 INFO  L225             Difference]: With dead ends: 486
[2024-11-02 21:56:29,036 INFO  L226             Difference]: Without dead ends: 346
[2024-11-02 21:56:29,037 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:56:29,037 INFO  L432           NwaCegarLoop]: 208 mSDtfsCounter, 275 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 178 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time
[2024-11-02 21:56:29,038 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 901 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 42 Invalid, 11 Unknown, 0 Unchecked, 47.7s Time]
[2024-11-02 21:56:29,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 346 states.
[2024-11-02 21:56:29,112 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 221.
[2024-11-02 21:56:29,113 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 221 states, 130 states have (on average 1.323076923076923) internal successors, (172), 130 states have internal predecessors, (172), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2024-11-02 21:56:29,115 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 348 transitions.
[2024-11-02 21:56:29,116 INFO  L78                 Accepts]: Start accepts. Automaton has 221 states and 348 transitions. Word has length 288
[2024-11-02 21:56:29,116 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:56:29,116 INFO  L471      AbstractCegarLoop]: Abstraction has 221 states and 348 transitions.
[2024-11-02 21:56:29,117 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88)
[2024-11-02 21:56:29,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 221 states and 348 transitions.
[2024-11-02 21:56:29,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 290
[2024-11-02 21:56:29,120 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:56:29,120 INFO  L215           NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:56:29,199 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 21:56:29,324 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 21:56:29,325 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:56:29,326 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:56:29,326 INFO  L85        PathProgramCache]: Analyzing trace with hash -1999227172, now seen corresponding path program 1 times
[2024-11-02 21:56:29,326 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:56:29,326 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242470112]
[2024-11-02 21:56:29,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:56:29,327 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:56:29,327 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:56:29,328 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 21:56:29,329 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 21:56:29,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:56:30,111 INFO  L255         TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 21:56:30,115 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:56:31,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 3784 backedges. 745 proven. 12 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked.
[2024-11-02 21:56:31,671 INFO  L311         TraceCheckSpWp]: Computing backward predicates...