/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 21:27:32,114 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 21:27:32,191 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 21:27:32,195 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 21:27:32,196 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 21:27:32,226 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 21:27:32,227 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 21:27:32,227 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 21:27:32,228 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 21:27:32,233 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 21:27:32,233 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 21:27:32,234 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 21:27:32,234 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 21:27:32,234 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 21:27:32,235 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 21:27:32,235 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 21:27:32,235 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 21:27:32,235 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 21:27:32,236 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 21:27:32,236 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 21:27:32,236 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 21:27:32,237 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 21:27:32,237 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 21:27:32,237 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 21:27:32,238 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 21:27:32,238 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 21:27:32,238 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 21:27:32,238 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 21:27:32,239 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 21:27:32,239 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 21:27:32,239 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 21:27:32,239 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 21:27:32,240 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 21:27:32,240 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 21:27:32,240 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:27:32,240 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 21:27:32,241 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 21:27:32,241 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 21:27:32,241 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 21:27:32,241 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 21:27:32,242 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 21:27:32,243 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 21:27:32,243 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 21:27:32,243 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 21:27:32,244 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:32,462 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 21:27:32,484 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 21:27:32,486 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 21:27:32,488 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 21:27:32,488 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 21:27:32,489 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i
[2024-11-02 21:27:33,977 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 21:27:34,176 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 21:27:34,176 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i
[2024-11-02 21:27:34,186 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb80b9013/8f8b744bb5e54d7eb47f2c6d8a372533/FLAG9a4af8edc
[2024-11-02 21:27:34,208 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb80b9013/8f8b744bb5e54d7eb47f2c6d8a372533
[2024-11-02 21:27:34,211 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 21:27:34,212 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 21:27:34,214 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 21:27:34,214 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 21:27:34,219 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 21:27:34,220 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,221 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28aa3df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34, skipping insertion in model container
[2024-11-02 21:27:34,221 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,255 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 21:27:34,450 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i[916,929]
[2024-11-02 21:27:34,490 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:27:34,505 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 21:27:34,518 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i[916,929]
[2024-11-02 21:27:34,539 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 21:27:34,565 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 21:27:34,566 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34 WrapperNode
[2024-11-02 21:27:34,566 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 21:27:34,567 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 21:27:34,567 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 21:27:34,567 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 21:27:34,574 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,592 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,616 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107
[2024-11-02 21:27:34,617 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 21:27:34,618 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 21:27:34,618 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 21:27:34,618 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 21:27:34,628 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,628 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,634 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,657 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-02 21:27:34,657 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,657 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,664 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,669 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,673 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,675 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,677 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 21:27:34,680 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 21:27:34,680 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 21:27:34,680 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 21:27:34,681 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (1/1) ...
[2024-11-02 21:27:34,686 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 21:27:34,698 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:34,715 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-02 21:27:34,721 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-02 21:27:34,749 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 21:27:34,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 21:27:34,750 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 21:27:34,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 21:27:34,750 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 21:27:34,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 21:27:34,841 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 21:27:34,843 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 21:27:35,213 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-11-02 21:27:35,213 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 21:27:35,230 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 21:27:35,230 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 21:27:35,232 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:35 BoogieIcfgContainer
[2024-11-02 21:27:35,232 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 21:27:35,235 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 21:27:35,235 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 21:27:35,239 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 21:27:35,239 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:27:34" (1/3) ...
[2024-11-02 21:27:35,240 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2d69fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:35, skipping insertion in model container
[2024-11-02 21:27:35,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:34" (2/3) ...
[2024-11-02 21:27:35,240 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2d69fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:35, skipping insertion in model container
[2024-11-02 21:27:35,241 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:35" (3/3) ...
[2024-11-02 21:27:35,243 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-69.i
[2024-11-02 21:27:35,260 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 21:27:35,260 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 21:27:35,333 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 21:27:35,341 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;@47ccc3b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 21:27:35,342 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 21:27:35,346 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:27:35,357 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-02 21:27:35,358 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:35,358 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:35,359 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:35,365 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:35,365 INFO  L85        PathProgramCache]: Analyzing trace with hash 494546619, now seen corresponding path program 1 times
[2024-11-02 21:27:35,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:35,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403544359]
[2024-11-02 21:27:35,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:35,378 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:35,378 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:35,381 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:35,383 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 21:27:35,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:35,566 INFO  L255         TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:35,577 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:27:35,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 21:27:35,620 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:27:35,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 21:27:35,738 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:27:35,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403544359]
[2024-11-02 21:27:35,739 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1403544359] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:27:35,742 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:27:35,743 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 21:27:35,744 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250479011]
[2024-11-02 21:27:35,745 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:27:35,749 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 21:27:35,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:27:35,768 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 21:27:35,768 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:27:35,771 INFO  L87              Difference]: Start difference. First operand  has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 21:27:35,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:27:35,798 INFO  L93              Difference]: Finished difference Result 99 states and 168 transitions.
[2024-11-02 21:27:35,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 21:27:35,801 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102
[2024-11-02 21:27:35,801 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:27:35,811 INFO  L225             Difference]: With dead ends: 99
[2024-11-02 21:27:35,811 INFO  L226             Difference]: Without dead ends: 49
[2024-11-02 21:27:35,815 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 21:27:35,822 INFO  L432           NwaCegarLoop]: 72 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, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 21:27:35,823 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 21:27:35,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-02 21:27:35,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2024-11-02 21:27:35,867 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:27:35,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions.
[2024-11-02 21:27:35,873 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 102
[2024-11-02 21:27:35,874 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:27:35,874 INFO  L471      AbstractCegarLoop]: Abstraction has 49 states and 72 transitions.
[2024-11-02 21:27:35,874 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 21:27:35,874 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions.
[2024-11-02 21:27:35,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-02 21:27:35,880 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:27:35,880 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 21:27:35,899 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-02 21:27:36,084 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:36,085 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:27:36,086 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:27:36,086 INFO  L85        PathProgramCache]: Analyzing trace with hash -577696069, now seen corresponding path program 1 times
[2024-11-02 21:27:36,086 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:27:36,086 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868659679]
[2024-11-02 21:27:36,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:27:36,087 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:27:36,087 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:27:36,089 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:27:36,090 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 21:27:36,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:27:36,233 INFO  L255         TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-02 21:27:36,244 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:27:48,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-02 21:27:48,939 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:28:00,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 21:28:00,391 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:28:00,391 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868659679]
[2024-11-02 21:28:00,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [868659679] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:28:00,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:28:00,392 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16
[2024-11-02 21:28:00,392 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247575432]
[2024-11-02 21:28:00,392 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:28:00,393 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:28:00,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:28:00,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:28:00,395 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240
[2024-11-02 21:28:00,395 INFO  L87              Difference]: Start difference. First operand 49 states and 72 transitions. Second operand  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:05,150 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:28:05,151 INFO  L93              Difference]: Finished difference Result 76 states and 107 transitions.
[2024-11-02 21:28:05,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 21:28:05,164 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102
[2024-11-02 21:28:05,165 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:28:05,167 INFO  L225             Difference]: With dead ends: 76
[2024-11-02 21:28:05,167 INFO  L226             Difference]: Without dead ends: 74
[2024-11-02 21:28:05,168 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342
[2024-11-02 21:28:05,169 INFO  L432           NwaCegarLoop]: 61 mSDtfsCounter, 37 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-02 21:28:05,170 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 259 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-02 21:28:05,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-02 21:28:05,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58.
[2024-11-02 21:28:05,179 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:28:05,180 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions.
[2024-11-02 21:28:05,180 INFO  L78                 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 102
[2024-11-02 21:28:05,182 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:28:05,182 INFO  L471      AbstractCegarLoop]: Abstraction has 58 states and 85 transitions.
[2024-11-02 21:28:05,182 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:05,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions.
[2024-11-02 21:28:05,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 21:28:05,184 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:28:05,184 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:05,202 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 21:28:05,385 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 21:28:05,386 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:28:05,386 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:28:05,386 INFO  L85        PathProgramCache]: Analyzing trace with hash 1877521400, now seen corresponding path program 1 times
[2024-11-02 21:28:05,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:28:05,387 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463646317]
[2024-11-02 21:28:05,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:28:05,387 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:28:05,387 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:28:05,389 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 21:28:05,398 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 21:28:05,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:28:05,504 INFO  L255         TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-02 21:28:05,516 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:28:13,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 75 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked.
[2024-11-02 21:28:13,134 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:28:17,864 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 21:28:17,865 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:28:17,865 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463646317]
[2024-11-02 21:28:17,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [463646317] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:28:17,865 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:28:17,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18
[2024-11-02 21:28:17,866 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654191756]
[2024-11-02 21:28:17,866 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:28:17,866 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 21:28:17,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:28:17,867 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 21:28:17,868 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306
[2024-11-02 21:28:17,868 INFO  L87              Difference]: Start difference. First operand 58 states and 85 transitions. Second operand  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:20,523 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:28:20,523 INFO  L93              Difference]: Finished difference Result 74 states and 105 transitions.
[2024-11-02 21:28:20,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 21:28:20,528 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-02 21:28:20,529 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:28:20,530 INFO  L225             Difference]: With dead ends: 74
[2024-11-02 21:28:20,530 INFO  L226             Difference]: Without dead ends: 72
[2024-11-02 21:28:20,531 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380
[2024-11-02 21:28:20,532 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 28 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-02 21:28:20,533 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 280 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-02 21:28:20,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-02 21:28:20,540 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59.
[2024-11-02 21:28:20,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:28:20,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions.
[2024-11-02 21:28:20,542 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 103
[2024-11-02 21:28:20,543 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:28:20,543 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 87 transitions.
[2024-11-02 21:28:20,543 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:20,543 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions.
[2024-11-02 21:28:20,545 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2024-11-02 21:28:20,545 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:28:20,545 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:20,562 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-02 21:28:20,745 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 21:28:20,746 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:28:20,747 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:28:20,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -1994204589, now seen corresponding path program 1 times
[2024-11-02 21:28:20,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:28:20,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412304996]
[2024-11-02 21:28:20,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:28:20,747 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:28:20,748 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:28:20,749 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 21:28:20,750 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 21:28:20,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:28:20,846 INFO  L255         TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-02 21:28:20,851 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:28:25,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-02 21:28:25,861 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:28:47,868 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 21:28:47,869 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:28:47,869 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412304996]
[2024-11-02 21:28:47,869 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [412304996] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:28:47,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:28:47,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17
[2024-11-02 21:28:47,870 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868776196]
[2024-11-02 21:28:47,870 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:28:47,870 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 21:28:47,870 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:28:47,871 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 21:28:47,871 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272
[2024-11-02 21:28:47,872 INFO  L87              Difference]: Start difference. First operand 59 states and 87 transitions. Second operand  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:55,280 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:28:55,281 INFO  L93              Difference]: Finished difference Result 93 states and 132 transitions.
[2024-11-02 21:28:55,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 21:28:55,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2024-11-02 21:28:55,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:28:55,290 INFO  L225             Difference]: With dead ends: 93
[2024-11-02 21:28:55,290 INFO  L226             Difference]: Without dead ends: 91
[2024-11-02 21:28:55,291 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380
[2024-11-02 21:28:55,292 INFO  L432           NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2024-11-02 21:28:55,293 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 265 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2024-11-02 21:28:55,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-11-02 21:28:55,299 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61.
[2024-11-02 21:28:55,299 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:28:55,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 90 transitions.
[2024-11-02 21:28:55,300 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 90 transitions. Word has length 103
[2024-11-02 21:28:55,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:28:55,301 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 90 transitions.
[2024-11-02 21:28:55,301 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:28:55,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 90 transitions.
[2024-11-02 21:28:55,305 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-02 21:28:55,305 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:28:55,305 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:55,325 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 21:28:55,506 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 21:28:55,506 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:28:55,507 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:28:55,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 915430240, now seen corresponding path program 1 times
[2024-11-02 21:28:55,507 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:28:55,507 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1684102597]
[2024-11-02 21:28:55,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:28:55,508 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:28:55,508 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:28:55,511 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 21:28:55,514 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 21:28:55,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:28:55,582 INFO  L255         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-02 21:28:55,585 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 21:28:58,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2024-11-02 21:28:58,133 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 21:29:03,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 21:29:03,898 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 21:29:03,898 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1684102597]
[2024-11-02 21:29:03,898 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1684102597] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 21:29:03,898 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 21:29:03,899 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15
[2024-11-02 21:29:03,899 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128212957]
[2024-11-02 21:29:03,899 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 21:29:03,899 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 21:29:03,899 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 21:29:03,900 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 21:29:03,900 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210
[2024-11-02 21:29:03,901 INFO  L87              Difference]: Start difference. First operand 61 states and 90 transitions. Second operand  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:29:07,876 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 21:29:07,876 INFO  L93              Difference]: Finished difference Result 84 states and 120 transitions.
[2024-11-02 21:29:07,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-02 21:29:07,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104
[2024-11-02 21:29:07,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 21:29:07,881 INFO  L225             Difference]: With dead ends: 84
[2024-11-02 21:29:07,881 INFO  L226             Difference]: Without dead ends: 82
[2024-11-02 21:29:07,882 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272
[2024-11-02 21:29:07,882 INFO  L432           NwaCegarLoop]: 64 mSDtfsCounter, 20 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-02 21:29:07,883 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 278 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-02 21:29:07,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-02 21:29:07,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 59.
[2024-11-02 21:29:07,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 59 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 21:29:07,890 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions.
[2024-11-02 21:29:07,891 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 104
[2024-11-02 21:29:07,891 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 21:29:07,891 INFO  L471      AbstractCegarLoop]: Abstraction has 59 states and 87 transitions.
[2024-11-02 21:29:07,891 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 21:29:07,891 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions.
[2024-11-02 21:29:07,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-02 21:29:07,893 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 21:29:07,893 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:07,908 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-02 21:29:08,093 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:29:08,094 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 21:29:08,094 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 21:29:08,094 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571392194, now seen corresponding path program 1 times
[2024-11-02 21:29:08,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 21:29:08,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380512510]
[2024-11-02 21:29:08,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 21:29:08,095 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 21:29:08,095 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 21:29:08,096 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 21:29:08,097 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-02 21:29:08,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 21:29:08,178 INFO  L255         TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-02 21:29:08,181 INFO  L278         TraceCheckSpWp]: Computing forward predicates...