/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-42.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:11:56,030 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:11:56,114 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 21:11:56,122 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:11:56,122 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:11:56,158 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:11:56,158 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:11:56,159 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:11:56,161 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:11:56,162 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:11:56,162 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:11:56,163 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:11:56,163 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:11:56,164 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:11:56,164 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:11:56,164 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:11:56,164 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:11:56,165 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:11:56,165 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:11:56,169 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:11:56,169 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:11:56,170 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:11:56,170 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:11:56,170 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:11:56,170 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:11:56,170 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:11:56,171 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:11:56,171 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:11:56,171 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:11:56,171 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:11:56,172 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:11:56,172 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:11:56,172 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:11:56,172 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:11:56,173 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:11:56,173 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:11:56,175 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:11:56,175 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:11:56,175 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:11:56,175 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:11:56,175 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:11:56,176 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:11:56,176 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:11:56,176 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:11:56,177 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:11:56,430 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:11:56,454 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:11:56,458 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:11:56,460 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:11:56,460 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:11:56,461 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-42.i
[2024-11-02 21:11:57,897 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:11:58,101 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:11:58,101 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-42.i
[2024-11-02 21:11:58,113 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21d28386/e5e72147a2ac4956b085f30e52377164/FLAG762de2c80
[2024-11-02 21:11:58,131 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e21d28386/e5e72147a2ac4956b085f30e52377164
[2024-11-02 21:11:58,133 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:11:58,134 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:11:58,139 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:11:58,139 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:11:58,144 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:11:58,145 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,146 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317a995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58, skipping insertion in model container
[2024-11-02 21:11:58,146 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,171 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:11:58,353 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-42.i[917,930]
[2024-11-02 21:11:58,394 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:11:58,412 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:11:58,425 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-42.i[917,930]
[2024-11-02 21:11:58,456 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:11:58,482 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:11:58,484 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58 WrapperNode
[2024-11-02 21:11:58,484 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:11:58,486 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:11:58,486 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:11:58,486 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:11:58,493 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,511 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,547 INFO  L138                Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 88
[2024-11-02 21:11:58,548 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:11:58,551 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:11:58,551 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:11:58,551 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:11:58,570 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,570 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,582 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,600 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 21:11:58,600 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,601 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,611 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,614 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,621 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,622 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,625 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:11:58,626 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:11:58,626 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:11:58,627 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:11:58,627 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (1/1) ...
[2024-11-02 21:11:58,634 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:11:58,645 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:11:58,662 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 21:11:58,668 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 21:11:58,694 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:11:58,694 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:11:58,694 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:11:58,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:11:58,695 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:11:58,695 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:11:58,781 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:11:58,808 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:11:59,072 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-02 21:11:59,072 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:11:59,090 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:11:59,090 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:11:59,091 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:59 BoogieIcfgContainer
[2024-11-02 21:11:59,091 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:11:59,095 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:11:59,095 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:11:59,098 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:11:59,099 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:58" (1/3) ...
[2024-11-02 21:11:59,099 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a67d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:59, skipping insertion in model container
[2024-11-02 21:11:59,099 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:58" (2/3) ...
[2024-11-02 21:11:59,100 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315a67d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:59, skipping insertion in model container
[2024-11-02 21:11:59,100 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:59" (3/3) ...
[2024-11-02 21:11:59,101 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-42.i
[2024-11-02 21:11:59,117 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:11:59,117 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:11:59,170 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:11:59,176 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;@d227f96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:11:59,176 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:11:59,179 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 41 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-02 21:11:59,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-02 21:11:59,187 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:11:59,187 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:59,188 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:11:59,192 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:11:59,192 INFO  L85        PathProgramCache]: Analyzing trace with hash -827587499, now seen corresponding path program 1 times
[2024-11-02 21:11:59,199 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:11:59,200 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145112583]
[2024-11-02 21:11:59,200 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:11:59,202 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:11:59,202 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:11:59,204 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 21:11:59,205 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 21:11:59,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:11:59,346 INFO  L255         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:11:59,358 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:11:59,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2024-11-02 21:11:59,397 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:11:59,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2024-11-02 21:11:59,476 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:11:59,476 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145112583]
[2024-11-02 21:11:59,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1145112583] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:11:59,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:11:59,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:11:59,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194242324]
[2024-11-02 21:11:59,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:11:59,483 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:11:59,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:11:59,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:11:59,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:11:59,512 INFO  L87              Difference]: Start difference. First operand  has 41 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-02 21:11:59,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:11:59,541 INFO  L93              Difference]: Finished difference Result 75 states and 123 transitions.
[2024-11-02 21:11:59,544 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:11:59,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74
[2024-11-02 21:11:59,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:11:59,552 INFO  L225             Difference]: With dead ends: 75
[2024-11-02 21:11:59,553 INFO  L226             Difference]: Without dead ends: 37
[2024-11-02 21:11:59,557 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 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 21:11:59,561 INFO  L432           NwaCegarLoop]: 50 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, 50 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 21:11:59,563 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:11:59,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-11-02 21:11:59,600 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-11-02 21:11:59,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 37 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-02 21:11:59,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions.
[2024-11-02 21:11:59,607 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 74
[2024-11-02 21:11:59,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:11:59,608 INFO  L471      AbstractCegarLoop]: Abstraction has 37 states and 50 transitions.
[2024-11-02 21:11:59,610 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11)
[2024-11-02 21:11:59,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions.
[2024-11-02 21:11:59,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-02 21:11:59,615 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:11:59,615 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:59,635 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 21:11:59,816 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 21:11:59,817 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:11:59,817 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:11:59,818 INFO  L85        PathProgramCache]: Analyzing trace with hash -865244527, now seen corresponding path program 1 times
[2024-11-02 21:11:59,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:11:59,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456258622]
[2024-11-02 21:11:59,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:11:59,818 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:11:59,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:11:59,820 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 21:11:59,822 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 21:11:59,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:11:59,939 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 21:11:59,948 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:12:00,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-02 21:12:00,147 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:12:00,289 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-02 21:12:00,289 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:12:00,290 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456258622]
[2024-11-02 21:12:00,290 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [456258622] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 21:12:00,290 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 21:12:00,290 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2024-11-02 21:12:00,291 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517505123]
[2024-11-02 21:12:00,291 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 21:12:00,294 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 21:12:00,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:12:00,297 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 21:12:00,297 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-02 21:12:00,297 INFO  L87              Difference]: Start difference. First operand 37 states and 50 transitions. Second operand  has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:12:00,892 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:12:00,893 INFO  L93              Difference]: Finished difference Result 133 states and 170 transitions.
[2024-11-02 21:12:00,894 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 21:12:00,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74
[2024-11-02 21:12:00,895 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:12:00,896 INFO  L225             Difference]: With dead ends: 133
[2024-11-02 21:12:00,896 INFO  L226             Difference]: Without dead ends: 99
[2024-11-02 21:12:00,897 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42
[2024-11-02 21:12:00,898 INFO  L432           NwaCegarLoop]: 76 mSDtfsCounter, 90 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-02 21:12:00,899 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 196 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-02 21:12:00,901 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2024-11-02 21:12:00,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 42.
[2024-11-02 21:12:00,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 28 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-02 21:12:00,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions.
[2024-11-02 21:12:00,916 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 54 transitions. Word has length 74
[2024-11-02 21:12:00,917 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:12:00,917 INFO  L471      AbstractCegarLoop]: Abstraction has 42 states and 54 transitions.
[2024-11-02 21:12:00,917 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:12:00,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions.
[2024-11-02 21:12:00,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-02 21:12:00,920 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:12:00,920 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:00,943 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 21:12:01,120 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 21:12:01,121 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:12:01,122 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:12:01,122 INFO  L85        PathProgramCache]: Analyzing trace with hash -863397485, now seen corresponding path program 1 times
[2024-11-02 21:12:01,122 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:12:01,123 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706732356]
[2024-11-02 21:12:01,123 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:12:01,123 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:12:01,123 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:12:01,125 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 21:12:01,127 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 21:12:01,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:12:01,206 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-02 21:12:01,217 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:12:12,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 92 proven. 54 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-11-02 21:12:12,282 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:12:31,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-02 21:12:31,154 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:12:31,155 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706732356]
[2024-11-02 21:12:31,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1706732356] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:12:31,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:12:31,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 22
[2024-11-02 21:12:31,155 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723497191]
[2024-11-02 21:12:31,155 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:12:31,156 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-02 21:12:31,156 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:12:31,157 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-02 21:12:31,157 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2024-11-02 21:12:31,157 INFO  L87              Difference]: Start difference. First operand 42 states and 54 transitions. Second operand  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:12:32,327 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:12:32,328 INFO  L93              Difference]: Finished difference Result 60 states and 72 transitions.
[2024-11-02 21:12:32,328 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 21:12:32,329 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74
[2024-11-02 21:12:32,329 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:12:32,331 INFO  L225             Difference]: With dead ends: 60
[2024-11-02 21:12:32,331 INFO  L226             Difference]: Without dead ends: 58
[2024-11-02 21:12:32,331 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552
[2024-11-02 21:12:32,333 INFO  L432           NwaCegarLoop]: 41 mSDtfsCounter, 28 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 21:12:32,333 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 223 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 21:12:32,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2024-11-02 21:12:32,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 45.
[2024-11-02 21:12:32,345 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-02 21:12:32,347 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions.
[2024-11-02 21:12:32,347 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 74
[2024-11-02 21:12:32,348 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:12:32,348 INFO  L471      AbstractCegarLoop]: Abstraction has 45 states and 57 transitions.
[2024-11-02 21:12:32,348 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:12:32,349 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions.
[2024-11-02 21:12:32,353 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-02 21:12:32,353 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:12:32,353 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:32,374 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 21:12:32,554 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 21:12:32,555 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:12:32,555 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:12:32,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 395627409, now seen corresponding path program 1 times
[2024-11-02 21:12:32,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:12:32,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641440202]
[2024-11-02 21:12:32,556 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:12:32,556 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:12:32,556 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:12:32,558 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 21:12:32,559 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 21:12:32,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:12:32,621 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-02 21:12:32,624 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:13:04,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2024-11-02 21:13:04,702 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:13:27,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2024-11-02 21:13:27,479 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:13:27,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641440202]
[2024-11-02 21:13:27,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [641440202] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:13:27,479 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:13:27,479 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19
[2024-11-02 21:13:27,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472008060]
[2024-11-02 21:13:27,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:13:27,480 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-02 21:13:27,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:13:27,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-02 21:13:27,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342
[2024-11-02 21:13:27,481 INFO  L87              Difference]: Start difference. First operand 45 states and 57 transitions. Second operand  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:13:27,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:13:27,961 INFO  L93              Difference]: Finished difference Result 53 states and 65 transitions.
[2024-11-02 21:13:27,963 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 21:13:27,963 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74
[2024-11-02 21:13:27,964 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:13:27,964 INFO  L225             Difference]: With dead ends: 53
[2024-11-02 21:13:27,964 INFO  L226             Difference]: Without dead ends: 51
[2024-11-02 21:13:27,965 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420
[2024-11-02 21:13:27,966 INFO  L432           NwaCegarLoop]: 44 mSDtfsCounter, 18 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 21:13:27,969 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 183 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 21:13:27,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2024-11-02 21:13:27,978 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45.
[2024-11-02 21:13:27,979 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-11-02 21:13:27,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions.
[2024-11-02 21:13:27,980 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 74
[2024-11-02 21:13:27,980 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:13:27,980 INFO  L471      AbstractCegarLoop]: Abstraction has 45 states and 57 transitions.
[2024-11-02 21:13:27,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11)
[2024-11-02 21:13:27,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions.
[2024-11-02 21:13:27,982 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-02 21:13:27,982 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:13:27,982 INFO  L215           NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:27,997 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-02 21:13:28,182 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:13:28,183 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:13:28,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:13:28,184 INFO  L85        PathProgramCache]: Analyzing trace with hash 397474451, now seen corresponding path program 1 times
[2024-11-02 21:13:28,184 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:13:28,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968780662]
[2024-11-02 21:13:28,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:13:28,184 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:13:28,185 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:13:28,186 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:13:28,187 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-02 21:13:28,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:13:28,250 INFO  L255         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-02 21:13:28,253 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:13:33,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 220 backedges. 92 proven. 54 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2024-11-02 21:13:33,973 INFO  L311         TraceCheckSpWp]: Computing backward predicates...