/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-11.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:26:53,117 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:26:53,172 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 22:26:53,177 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:26:53,177 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:26:53,201 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:26:53,202 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:26:53,202 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:26:53,202 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:26:53,204 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:26:53,204 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:26:53,204 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:26:53,204 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:26:53,204 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:26:53,205 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:26:53,205 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:26:53,206 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:26:53,208 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:26:53,208 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:26:53,208 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:26:53,208 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:26:53,211 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:26:53,211 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:26:53,212 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:26:53,213 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:26:53,213 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:26:53,213 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:26:53,213 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:26:53,213 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:26:53,214 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:26:53,215 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:26:53,215 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:26:53,215 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:26:53,215 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:26:53,215 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:26:53,216 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:26:53,216 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:26:53,216 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:26:53,216 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:53,415 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:26:53,438 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:26:53,440 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:26:53,444 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:26:53,444 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:26:53,445 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-11.i
[2024-11-02 22:26:54,779 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:26:54,968 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:26:54,969 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-11.i
[2024-11-02 22:26:54,982 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b2913e7/748b5ade9397462d84e4dfd435b1e432/FLAGc7f42014e
[2024-11-02 22:26:54,998 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b2913e7/748b5ade9397462d84e4dfd435b1e432
[2024-11-02 22:26:55,000 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:26:55,001 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:26:55,003 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:26:55,003 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:26:55,010 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:26:55,011 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:26:54" (1/1) ...
[2024-11-02 22:26:55,012 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5876a984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55, skipping insertion in model container
[2024-11-02 22:26:55,012 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:26:54" (1/1) ...
[2024-11-02 22:26:55,043 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:26:55,170 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-11.i[915,928]
[2024-11-02 22:26:55,213 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:26:55,225 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:26:55,236 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-11.i[915,928]
[2024-11-02 22:26:55,274 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:26:55,293 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:26:55,293 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55 WrapperNode
[2024-11-02 22:26:55,294 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:26:55,295 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:26:55,295 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:26:55,295 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:26:55,300 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,308 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,333 INFO  L138                Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127
[2024-11-02 22:26:55,333 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:26:55,334 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:26:55,334 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:26:55,334 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:26:55,343 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,343 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,350 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,365 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-02 22:26:55,366 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,366 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,372 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,375 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,377 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,378 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,380 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:26:55,381 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:26:55,381 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:26:55,381 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:26:55,385 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (1/1) ...
[2024-11-02 22:26:55,394 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:26:55,407 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:55,419 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-02 22:26:55,425 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-02 22:26:55,445 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:26:55,445 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:26:55,445 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:26:55,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:26:55,445 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:26:55,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:26:55,513 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:26:55,515 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:26:55,757 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-02 22:26:55,757 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:26:55,772 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:26:55,772 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:26:55,772 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:26:55 BoogieIcfgContainer
[2024-11-02 22:26:55,772 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:26:55,776 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:26:55,776 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:26:55,778 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:26:55,778 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:26:54" (1/3) ...
[2024-11-02 22:26:55,778 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749bc570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:26:55, skipping insertion in model container
[2024-11-02 22:26:55,779 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:26:55" (2/3) ...
[2024-11-02 22:26:55,779 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749bc570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:26:55, skipping insertion in model container
[2024-11-02 22:26:55,779 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:26:55" (3/3) ...
[2024-11-02 22:26:55,780 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-11.i
[2024-11-02 22:26:55,792 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:26:55,792 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:26:55,867 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:26:55,872 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;@3742ff38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:26:55,872 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:26:55,875 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 57 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-02 22:26:55,883 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-02 22:26:55,884 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:26:55,884 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:26:55,884 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:26:55,888 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:26:55,889 INFO  L85        PathProgramCache]: Analyzing trace with hash -1360217714, now seen corresponding path program 1 times
[2024-11-02 22:26:55,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:26:55,895 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812845268]
[2024-11-02 22:26:55,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:26:55,897 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:55,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:55,899 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:26:55,901 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 22:26:56,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:26:56,066 INFO  L255         TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:26:56,074 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:26:56,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked.
[2024-11-02 22:26:56,110 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:26:56,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked.
[2024-11-02 22:26:56,193 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:26:56,194 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812845268]
[2024-11-02 22:26:56,194 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1812845268] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:26:56,194 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:26:56,194 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:26:56,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395228293]
[2024-11-02 22:26:56,196 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:26:56,199 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:26:56,199 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:26:56,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:26:56,216 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:26:56,218 INFO  L87              Difference]: Start difference. First operand  has 57 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-02 22:26:56,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:26:56,237 INFO  L93              Difference]: Finished difference Result 107 states and 183 transitions.
[2024-11-02 22:26:56,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:26:56,240 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110
[2024-11-02 22:26:56,240 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:26:56,245 INFO  L225             Difference]: With dead ends: 107
[2024-11-02 22:26:56,245 INFO  L226             Difference]: Without dead ends: 53
[2024-11-02 22:26:56,248 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:26:56,250 INFO  L432           NwaCegarLoop]: 78 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, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:26:56,251 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:26:56,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-02 22:26:56,281 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-02 22:26:56,283 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2024-11-02 22:26:56,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 78 transitions.
[2024-11-02 22:26:56,290 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 78 transitions. Word has length 110
[2024-11-02 22:26:56,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:26:56,290 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 78 transitions.
[2024-11-02 22:26:56,291 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17)
[2024-11-02 22:26:56,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions.
[2024-11-02 22:26:56,293 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-02 22:26:56,293 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:26:56,294 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:26:56,310 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 22:26:56,497 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:56,498 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:26:56,499 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:26:56,499 INFO  L85        PathProgramCache]: Analyzing trace with hash -1522037806, now seen corresponding path program 1 times
[2024-11-02 22:26:56,499 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:26:56,499 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438312946]
[2024-11-02 22:26:56,500 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:26:56,500 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:56,500 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:56,502 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:26:56,503 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 22:26:56,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:26:56,605 INFO  L255         TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-02 22:26:56,643 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:26:57,133 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:57,133 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:26:57,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:57,251 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:26:57,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438312946]
[2024-11-02 22:26:57,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1438312946] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:26:57,251 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:26:57,251 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 22:26:57,251 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479967902]
[2024-11-02 22:26:57,252 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:26:57,253 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:26:57,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:26:57,256 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:26:57,256 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:26:57,257 INFO  L87              Difference]: Start difference. First operand 53 states and 78 transitions. Second operand  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-02 22:26:57,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:26:57,623 INFO  L93              Difference]: Finished difference Result 154 states and 229 transitions.
[2024-11-02 22:26:57,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-02 22:26:57,625 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 110
[2024-11-02 22:26:57,625 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:26:57,626 INFO  L225             Difference]: With dead ends: 154
[2024-11-02 22:26:57,627 INFO  L226             Difference]: Without dead ends: 104
[2024-11-02 22:26:57,627 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-02 22:26:57,628 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 69 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-02 22:26:57,628 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 357 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-02 22:26:57,629 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2024-11-02 22:26:57,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86.
[2024-11-02 22:26:57,643 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 22:26:57,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 127 transitions.
[2024-11-02 22:26:57,644 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 127 transitions. Word has length 110
[2024-11-02 22:26:57,645 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:26:57,645 INFO  L471      AbstractCegarLoop]: Abstraction has 86 states and 127 transitions.
[2024-11-02 22:26:57,645 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34)
[2024-11-02 22:26:57,645 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 127 transitions.
[2024-11-02 22:26:57,646 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-02 22:26:57,646 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:26:57,647 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:26:57,661 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 22:26:57,847 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:57,848 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:26:57,848 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:26:57,848 INFO  L85        PathProgramCache]: Analyzing trace with hash 1671248508, now seen corresponding path program 1 times
[2024-11-02 22:26:57,848 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:26:57,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873840793]
[2024-11-02 22:26:57,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:26:57,849 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:57,849 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:57,850 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:26:57,852 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 22:26:57,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:26:57,926 INFO  L255         TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-02 22:26:57,928 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:26:57,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:57,941 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:26:57,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:57,988 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:26:57,988 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873840793]
[2024-11-02 22:26:57,988 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1873840793] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:26:57,988 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:26:57,988 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2024-11-02 22:26:57,988 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733689761]
[2024-11-02 22:26:57,988 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:26:57,989 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 22:26:57,989 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:26:57,989 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 22:26:57,990 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:26:57,990 INFO  L87              Difference]: Start difference. First operand 86 states and 127 transitions. Second operand  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-02 22:26:58,039 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:26:58,039 INFO  L93              Difference]: Finished difference Result 181 states and 267 transitions.
[2024-11-02 22:26:58,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 22:26:58,040 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111
[2024-11-02 22:26:58,040 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:26:58,041 INFO  L225             Difference]: With dead ends: 181
[2024-11-02 22:26:58,041 INFO  L226             Difference]: Without dead ends: 131
[2024-11-02 22:26:58,042 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-02 22:26:58,043 INFO  L432           NwaCegarLoop]: 130 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:26:58,043 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 329 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:26:58,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2024-11-02 22:26:58,075 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88.
[2024-11-02 22:26:58,075 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 22:26:58,076 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions.
[2024-11-02 22:26:58,077 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 111
[2024-11-02 22:26:58,077 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:26:58,077 INFO  L471      AbstractCegarLoop]: Abstraction has 88 states and 129 transitions.
[2024-11-02 22:26:58,077 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-02 22:26:58,077 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions.
[2024-11-02 22:26:58,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-02 22:26:58,079 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:26:58,079 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:26:58,093 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-02 22:26:58,282 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:58,282 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:26:58,283 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:26:58,283 INFO  L85        PathProgramCache]: Analyzing trace with hash 1673095550, now seen corresponding path program 1 times
[2024-11-02 22:26:58,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:26:58,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039367575]
[2024-11-02 22:26:58,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:26:58,284 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:58,284 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:58,290 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:26:58,292 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-02 22:26:58,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:26:58,363 INFO  L255         TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 22:26:58,365 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:26:58,503 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked.
[2024-11-02 22:26:58,503 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:26:58,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-11-02 22:26:58,680 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:26:58,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039367575]
[2024-11-02 22:26:58,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2039367575] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:26:58,681 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:26:58,681 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2024-11-02 22:26:58,681 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806949676]
[2024-11-02 22:26:58,681 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:26:58,682 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-02 22:26:58,682 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:26:58,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-02 22:26:58,683 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-02 22:26:58,683 INFO  L87              Difference]: Start difference. First operand 88 states and 129 transitions. Second operand  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2024-11-02 22:26:58,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:26:58,945 INFO  L93              Difference]: Finished difference Result 154 states and 218 transitions.
[2024-11-02 22:26:58,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-02 22:26:58,948 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 111
[2024-11-02 22:26:58,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:26:58,949 INFO  L225             Difference]: With dead ends: 154
[2024-11-02 22:26:58,949 INFO  L226             Difference]: Without dead ends: 102
[2024-11-02 22:26:58,950 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 213 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240
[2024-11-02 22:26:58,950 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 77 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-02 22:26:58,951 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 121 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-02 22:26:58,951 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2024-11-02 22:26:58,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 94.
[2024-11-02 22:26:58,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 22:26:58,965 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions.
[2024-11-02 22:26:58,965 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 111
[2024-11-02 22:26:58,966 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:26:58,966 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 131 transitions.
[2024-11-02 22:26:58,966 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)
[2024-11-02 22:26:58,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions.
[2024-11-02 22:26:58,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-11-02 22:26:58,967 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:26:58,968 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:26:58,988 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-02 22:26:59,169 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 22:26:59,170 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:26:59,171 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:26:59,171 INFO  L85        PathProgramCache]: Analyzing trace with hash 1407360220, now seen corresponding path program 1 times
[2024-11-02 22:26:59,171 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:26:59,171 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395156225]
[2024-11-02 22:26:59,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:26:59,172 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:26:59,172 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:26:59,176 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 22:26:59,178 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 22:26:59,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:26:59,298 INFO  L255         TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:26:59,300 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:26:59,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:59,551 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:26:59,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2024-11-02 22:26:59,665 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:26:59,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395156225]
[2024-11-02 22:26:59,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [395156225] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:26:59,665 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:26:59,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-02 22:26:59,666 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891778333]
[2024-11-02 22:26:59,666 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:26:59,666 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 22:26:59,666 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:26:59,667 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 22:26:59,667 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:26:59,667 INFO  L87              Difference]: Start difference. First operand 94 states and 131 transitions. Second operand  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-02 22:27:00,438 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:27:00,438 INFO  L93              Difference]: Finished difference Result 152 states and 213 transitions.
[2024-11-02 22:27:00,440 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-02 22:27:00,441 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 112
[2024-11-02 22:27:00,441 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:27:00,442 INFO  L225             Difference]: With dead ends: 152
[2024-11-02 22:27:00,442 INFO  L226             Difference]: Without dead ends: 98
[2024-11-02 22:27:00,443 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:27:00,443 INFO  L432           NwaCegarLoop]: 124 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-02 22:27:00,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 145 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-02 22:27:00,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-11-02 22:27:00,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94.
[2024-11-02 22:27:00,465 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 55 states have internal predecessors, (61), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2024-11-02 22:27:00,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 129 transitions.
[2024-11-02 22:27:00,469 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 129 transitions. Word has length 112
[2024-11-02 22:27:00,470 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:27:00,470 INFO  L471      AbstractCegarLoop]: Abstraction has 94 states and 129 transitions.
[2024-11-02 22:27:00,470 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2024-11-02 22:27:00,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 129 transitions.
[2024-11-02 22:27:00,471 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-11-02 22:27:00,471 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:27:00,471 INFO  L215           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:27:00,489 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 22:27:00,674 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 22:27:00,675 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:27:00,675 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:27:00,675 INFO  L85        PathProgramCache]: Analyzing trace with hash -194657892, now seen corresponding path program 1 times
[2024-11-02 22:27:00,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:27:00,675 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317432278]
[2024-11-02 22:27:00,676 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:27:00,676 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:27:00,676 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:27:00,677 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 22:27:00,689 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 22:27:00,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:27:00,823 INFO  L255         TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-02 22:27:00,827 INFO  L278         TraceCheckSpWp]: Computing forward predicates...