/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_amount500_file-48.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:19:11,423 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:19:11,489 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 22:19:11,494 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:19:11,494 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:19:11,522 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:19:11,522 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:19:11,523 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:19:11,523 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:19:11,523 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:19:11,524 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:19:11,525 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:19:11,526 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:19:11,527 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:19:11,527 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:19:11,527 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:19:11,528 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:19:11,528 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:19:11,528 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:19:11,528 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:19:11,529 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:19:11,529 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:19:11,529 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:19:11,530 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:19:11,530 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:19:11,530 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:19:11,530 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:19:11,531 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:19:11,531 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:19:11,531 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:19:11,531 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:19:11,531 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:19:11,532 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:19:11,532 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:19:11,532 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:19:11,532 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:19:11,533 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:19:11,533 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:19:11,533 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:19:11,533 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:19:11,533 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:19:11,534 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:19:11,534 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:19:11,534 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:19:11,535 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:19:11,783 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:19:11,809 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:19:11,812 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:19:11,813 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:19:11,814 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:19:11,816 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-48.i
[2024-11-02 22:19:13,299 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:19:13,601 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:19:13,602 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-48.i
[2024-11-02 22:19:13,634 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d679fcc14/f18b94ba49064131aa7711d01c7e78fc/FLAG8717f4e69
[2024-11-02 22:19:13,651 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d679fcc14/f18b94ba49064131aa7711d01c7e78fc
[2024-11-02 22:19:13,656 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:19:13,658 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:19:13,660 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:19:13,660 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:19:13,667 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:19:13,668 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:19:13" (1/1) ...
[2024-11-02 22:19:13,669 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54955bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:13, skipping insertion in model container
[2024-11-02 22:19:13,669 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:19:13" (1/1) ...
[2024-11-02 22:19:13,729 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:19:13,920 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_amount500_file-48.i[916,929]
[2024-11-02 22:19:14,140 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:19:14,161 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:19:14,177 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_amount500_file-48.i[916,929]
[2024-11-02 22:19:14,351 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:19:14,378 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:19:14,378 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14 WrapperNode
[2024-11-02 22:19:14,379 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:19:14,380 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:19:14,380 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:19:14,380 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:19:14,386 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,415 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,467 INFO  L138                Inliner]: procedures = 27, calls = 96, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 616
[2024-11-02 22:19:14,467 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:19:14,468 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:19:14,468 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:19:14,468 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:19:14,480 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,480 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,490 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,549 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 22:19:14,550 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,551 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,580 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,586 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,594 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,600 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,621 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:19:14,622 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:19:14,622 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:19:14,623 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:19:14,623 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (1/1) ...
[2024-11-02 22:19:14,629 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:19:14,640 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:19:14,663 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 22:19:14,670 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 22:19:14,698 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:19:14,698 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:19:14,698 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:19:14,698 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:19:14,698 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:19:14,698 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:19:14,855 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:19:14,856 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:19:41,155 INFO  L?                        ?]: Removed 72 outVars from TransFormulas that were not future-live.
[2024-11-02 22:19:41,156 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:19:41,181 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:19:41,182 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:19:41,182 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:19:41 BoogieIcfgContainer
[2024-11-02 22:19:41,182 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:19:41,185 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:19:41,185 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:19:41,189 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:19:41,189 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:19:13" (1/3) ...
[2024-11-02 22:19:41,190 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5d5af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:19:41, skipping insertion in model container
[2024-11-02 22:19:41,190 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:19:14" (2/3) ...
[2024-11-02 22:19:41,190 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5d5af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:19:41, skipping insertion in model container
[2024-11-02 22:19:41,191 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:19:41" (3/3) ...
[2024-11-02 22:19:41,192 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-48.i
[2024-11-02 22:19:41,207 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:19:41,207 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:19:41,286 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:19:41,294 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;@408436ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:19:41,295 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:19:41,301 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 255 states, 169 states have (on average 1.544378698224852) internal successors, (261), 170 states have internal predecessors, (261), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83)
[2024-11-02 22:19:41,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-02 22:19:41,334 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:19:41,335 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:41,336 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:19:41,340 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:19:41,341 INFO  L85        PathProgramCache]: Analyzing trace with hash -1868265493, now seen corresponding path program 1 times
[2024-11-02 22:19:41,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:19:41,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618197814]
[2024-11-02 22:19:41,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:19:41,352 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:19:41,352 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:19:41,354 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 22:19:41,358 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 22:19:42,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:19:43,117 INFO  L255         TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:19:43,165 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:19:43,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 13448 trivial. 0 not checked.
[2024-11-02 22:19:43,240 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:19:51,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 13448 trivial. 0 not checked.
[2024-11-02 22:19:51,786 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:19:51,786 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618197814]
[2024-11-02 22:19:51,787 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [618197814] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:19:51,787 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:19:51,787 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:19:51,789 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298432325]
[2024-11-02 22:19:51,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:19:51,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:19:51,794 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:19:51,815 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:19:51,816 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:19:51,819 INFO  L87              Difference]: Start difference. First operand  has 255 states, 169 states have (on average 1.544378698224852) internal successors, (261), 170 states have internal predecessors, (261), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83)
[2024-11-02 22:19:51,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:19:51,874 INFO  L93              Difference]: Finished difference Result 503 states and 931 transitions.
[2024-11-02 22:19:51,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:19:51,877 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83) Word has length 535
[2024-11-02 22:19:51,877 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:19:51,886 INFO  L225             Difference]: With dead ends: 503
[2024-11-02 22:19:51,886 INFO  L226             Difference]: Without dead ends: 251
[2024-11-02 22:19:51,891 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1068 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 22:19:51,894 INFO  L432           NwaCegarLoop]: 418 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, 418 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 22:19:51,895 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:19:51,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 251 states.
[2024-11-02 22:19:51,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251.
[2024-11-02 22:19:51,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 251 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 states have internal predecessors, (252), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83)
[2024-11-02 22:19:51,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 418 transitions.
[2024-11-02 22:19:51,971 INFO  L78                 Accepts]: Start accepts. Automaton has 251 states and 418 transitions. Word has length 535
[2024-11-02 22:19:51,972 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:19:51,972 INFO  L471      AbstractCegarLoop]: Abstraction has 251 states and 418 transitions.
[2024-11-02 22:19:51,973 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83)
[2024-11-02 22:19:51,973 INFO  L276                IsEmpty]: Start isEmpty. Operand 251 states and 418 transitions.
[2024-11-02 22:19:51,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-02 22:19:51,991 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:19:51,992 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:52,184 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 22:19:52,192 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 22:19:52,193 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:19:52,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:19:52,194 INFO  L85        PathProgramCache]: Analyzing trace with hash -1372955883, now seen corresponding path program 1 times
[2024-11-02 22:19:52,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:19:52,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823240900]
[2024-11-02 22:19:52,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:19:52,195 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:19:52,195 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:19:52,196 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 22:19:52,197 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 22:19:53,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:19:53,851 INFO  L255         TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:19:53,861 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:19:56,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-02 22:19:56,219 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:20:07,095 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-02 22:20:07,097 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:20:07,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823240900]
[2024-11-02 22:20:07,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1823240900] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:20:07,100 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:20:07,100 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:20:07,100 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455350310]
[2024-11-02 22:20:07,101 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:20:07,106 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:20:07,106 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:20:07,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:20:07,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:20:07,108 INFO  L87              Difference]: Start difference. First operand 251 states and 418 transitions. Second operand  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-02 22:20:12,248 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:20:16,254 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 22:20:16,592 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:20:16,595 INFO  L93              Difference]: Finished difference Result 671 states and 1122 transitions.
[2024-11-02 22:20:16,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:20:16,596 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 535
[2024-11-02 22:20:16,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:20:16,609 INFO  L225             Difference]: With dead ends: 671
[2024-11-02 22:20:16,609 INFO  L226             Difference]: Without dead ends: 423
[2024-11-02 22:20:16,612 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1067 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:20:16,613 INFO  L432           NwaCegarLoop]: 607 mSDtfsCounter, 255 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time
[2024-11-02 22:20:16,614 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1012 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time]
[2024-11-02 22:20:16,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2024-11-02 22:20:16,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 420.
[2024-11-02 22:20:16,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 420 states, 293 states have (on average 1.5563139931740615) internal successors, (456), 294 states have internal predecessors, (456), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124)
[2024-11-02 22:20:16,690 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 704 transitions.
[2024-11-02 22:20:16,693 INFO  L78                 Accepts]: Start accepts. Automaton has 420 states and 704 transitions. Word has length 535
[2024-11-02 22:20:16,694 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:20:16,694 INFO  L471      AbstractCegarLoop]: Abstraction has 420 states and 704 transitions.
[2024-11-02 22:20:16,695 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-02 22:20:16,695 INFO  L276                IsEmpty]: Start isEmpty. Operand 420 states and 704 transitions.
[2024-11-02 22:20:16,707 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-02 22:20:16,708 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:20:16,709 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:16,895 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 22:20:16,909 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 22:20:16,910 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:20:16,911 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:20:16,911 INFO  L85        PathProgramCache]: Analyzing trace with hash -693683629, now seen corresponding path program 1 times
[2024-11-02 22:20:16,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:20:16,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312118443]
[2024-11-02 22:20:16,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:20:16,912 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:20:16,912 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:20:16,917 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 22:20:16,919 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 22:20:18,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:20:18,570 INFO  L255         TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:20:18,578 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:20:20,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-02 22:20:20,993 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:20:33,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-02 22:20:33,208 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:20:33,208 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312118443]
[2024-11-02 22:20:33,209 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [312118443] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:20:33,209 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:20:33,209 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:20:33,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072457955]
[2024-11-02 22:20:33,213 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:20:33,214 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:20:33,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:20:33,215 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:20:33,215 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:20:33,216 INFO  L87              Difference]: Start difference. First operand 420 states and 704 transitions. Second operand  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-02 22:20:38,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:20:42,473 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 22:20:42,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:20:42,809 INFO  L93              Difference]: Finished difference Result 1234 states and 2066 transitions.
[2024-11-02 22:20:42,809 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:20:42,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 535
[2024-11-02 22:20:42,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:20:42,819 INFO  L225             Difference]: With dead ends: 1234
[2024-11-02 22:20:42,819 INFO  L226             Difference]: Without dead ends: 817
[2024-11-02 22:20:42,821 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1067 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:20:42,822 INFO  L432           NwaCegarLoop]: 710 mSDtfsCounter, 366 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-02 22:20:42,822 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1095 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time]
[2024-11-02 22:20:42,824 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 817 states.
[2024-11-02 22:20:42,883 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 525.
[2024-11-02 22:20:42,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 525 states, 398 states have (on average 1.5804020100502512) internal successors, (629), 399 states have internal predecessors, (629), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124)
[2024-11-02 22:20:42,887 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 877 transitions.
[2024-11-02 22:20:42,888 INFO  L78                 Accepts]: Start accepts. Automaton has 525 states and 877 transitions. Word has length 535
[2024-11-02 22:20:42,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:20:42,890 INFO  L471      AbstractCegarLoop]: Abstraction has 525 states and 877 transitions.
[2024-11-02 22:20:42,890 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83)
[2024-11-02 22:20:42,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states and 877 transitions.
[2024-11-02 22:20:42,894 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2024-11-02 22:20:42,894 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:20:42,894 INFO  L215           NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:43,066 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 22:20:43,095 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 22:20:43,096 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:20:43,096 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:20:43,096 INFO  L85        PathProgramCache]: Analyzing trace with hash -1471179766, now seen corresponding path program 1 times
[2024-11-02 22:20:43,096 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:20:43,096 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021540716]
[2024-11-02 22:20:43,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:20:43,097 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:20:43,097 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:20:43,098 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 22:20:43,099 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 22:20:44,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:20:44,706 INFO  L255         TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:20:44,715 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:20:46,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked.
[2024-11-02 22:20:46,114 INFO  L311         TraceCheckSpWp]: Computing backward predicates...