/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_amount25_file-22.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:03:21,899 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:03:21,973 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 22:03:21,976 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:03:21,977 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:03:21,998 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:03:21,999 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:03:21,999 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:03:22,000 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:03:22,000 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:03:22,000 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:03:22,001 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:03:22,001 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:03:22,002 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:03:22,002 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:03:22,002 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:03:22,003 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:03:22,003 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:03:22,003 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:03:22,004 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:03:22,004 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:03:22,006 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:03:22,007 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:03:22,007 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:03:22,010 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:03:22,010 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:03:22,011 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:03:22,011 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:03:22,011 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:03:22,012 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:03:22,012 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:03:22,012 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:03:22,013 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:03:22,013 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:03:22,017 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:03:22,018 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:03:22,018 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:03:22,018 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:03:22,018 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:03:22,018 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:03:22,019 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:03:22,019 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:03:22,019 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:03:22,019 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:03:22,020 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:22,260 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:03:22,285 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:03:22,288 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:03:22,289 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:03:22,289 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:03:22,291 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-22.i
[2024-11-02 22:03:23,799 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:03:23,971 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:03:23,972 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-22.i
[2024-11-02 22:03:23,981 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c8749d4/9882446678fa4faf8bf73f09b3649d47/FLAG411da7159
[2024-11-02 22:03:23,993 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c8749d4/9882446678fa4faf8bf73f09b3649d47
[2024-11-02 22:03:23,995 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:03:23,997 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:03:23,998 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:03:23,998 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:03:24,003 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:03:24,003 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:03:23" (1/1) ...
[2024-11-02 22:03:24,004 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3599d981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24, skipping insertion in model container
[2024-11-02 22:03:24,004 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:03:23" (1/1) ...
[2024-11-02 22:03:24,024 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:03:24,187 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_amount25_file-22.i[915,928]
[2024-11-02 22:03:24,219 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:03:24,232 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:03:24,245 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_amount25_file-22.i[915,928]
[2024-11-02 22:03:24,260 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:03:24,281 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:03:24,281 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24 WrapperNode
[2024-11-02 22:03:24,281 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:03:24,282 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:03:24,283 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:03:24,283 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:03:24,287 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,297 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,315 INFO  L138                Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84
[2024-11-02 22:03:24,316 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:03:24,316 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:03:24,316 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:03:24,317 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:03:24,325 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,325 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,329 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,347 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 22:03:24,348 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,348 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,354 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,356 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,358 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,359 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,362 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:03:24,362 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:03:24,363 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:03:24,363 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:03:24,363 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (1/1) ...
[2024-11-02 22:03:24,374 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:03:24,383 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:24,395 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 22:03:24,396 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 22:03:24,414 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:03:24,414 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:03:24,414 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:03:24,414 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:03:24,414 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:03:24,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:03:24,477 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:03:24,479 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:03:24,754 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-02 22:03:24,754 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:03:24,768 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:03:24,769 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:03:24,770 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:03:24 BoogieIcfgContainer
[2024-11-02 22:03:24,770 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:03:24,774 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:03:24,774 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:03:24,777 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:03:24,778 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:03:23" (1/3) ...
[2024-11-02 22:03:24,779 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed008a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:03:24, skipping insertion in model container
[2024-11-02 22:03:24,779 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:03:24" (2/3) ...
[2024-11-02 22:03:24,780 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed008a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:03:24, skipping insertion in model container
[2024-11-02 22:03:24,780 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:03:24" (3/3) ...
[2024-11-02 22:03:24,781 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-22.i
[2024-11-02 22:03:24,796 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:03:24,796 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:03:24,846 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:03:24,853 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;@6c774af5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:03:24,854 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:03:24,857 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-02 22:03:24,865 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-02 22:03:24,865 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:24,866 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:24,867 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:24,872 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:24,872 INFO  L85        PathProgramCache]: Analyzing trace with hash -2131587255, now seen corresponding path program 1 times
[2024-11-02 22:03:24,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:24,881 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797651476]
[2024-11-02 22:03:24,881 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:24,885 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:24,886 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:24,888 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 22:03:24,890 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 22:03:25,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:25,036 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:25,045 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:25,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-02 22:03:25,081 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:03:25,139 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-11-02 22:03:25,140 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:03:25,141 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797651476]
[2024-11-02 22:03:25,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1797651476] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:03:25,145 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:03:25,145 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:03:25,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377640828]
[2024-11-02 22:03:25,149 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:03:25,154 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:03:25,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:03:25,180 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:03:25,180 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:03:25,183 INFO  L87              Difference]: Start difference. First operand  has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-02 22:03:25,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:03:25,206 INFO  L93              Difference]: Finished difference Result 71 states and 109 transitions.
[2024-11-02 22:03:25,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:03:25,209 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55
[2024-11-02 22:03:25,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:03:25,215 INFO  L225             Difference]: With dead ends: 71
[2024-11-02 22:03:25,215 INFO  L226             Difference]: Without dead ends: 35
[2024-11-02 22:03:25,219 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 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 22:03:25,223 INFO  L432           NwaCegarLoop]: 46 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, 46 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 22:03:25,225 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:03:25,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2024-11-02 22:03:25,260 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2024-11-02 22:03:25,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-02 22:03:25,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions.
[2024-11-02 22:03:25,268 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 55
[2024-11-02 22:03:25,268 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:03:25,268 INFO  L471      AbstractCegarLoop]: Abstraction has 35 states and 46 transitions.
[2024-11-02 22:03:25,269 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-02 22:03:25,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions.
[2024-11-02 22:03:25,271 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-02 22:03:25,272 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:25,272 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:25,295 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 22:03:25,473 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 22:03:25,473 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:25,474 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:25,474 INFO  L85        PathProgramCache]: Analyzing trace with hash -1920406395, now seen corresponding path program 1 times
[2024-11-02 22:03:25,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:25,475 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611293151]
[2024-11-02 22:03:25,475 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:25,475 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:25,475 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:25,477 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 22:03:25,478 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 22:03:25,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:25,578 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:25,585 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:25,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:03:25,990 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:03:26,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:03:26,093 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:03:26,094 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611293151]
[2024-11-02 22:03:26,094 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1611293151] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:03:26,094 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:03:26,094 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6
[2024-11-02 22:03:26,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978431121]
[2024-11-02 22:03:26,095 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:03:26,097 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-02 22:03:26,097 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:03:26,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-02 22:03:26,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-02 22:03:26,100 INFO  L87              Difference]: Start difference. First operand 35 states and 46 transitions. Second operand  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2024-11-02 22:03:26,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:03:26,286 INFO  L93              Difference]: Finished difference Result 117 states and 155 transitions.
[2024-11-02 22:03:26,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-02 22:03:26,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 55
[2024-11-02 22:03:26,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:03:26,291 INFO  L225             Difference]: With dead ends: 117
[2024-11-02 22:03:26,291 INFO  L226             Difference]: Without dead ends: 85
[2024-11-02 22:03:26,292 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:03:26,293 INFO  L432           NwaCegarLoop]: 43 mSDtfsCounter, 55 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-02 22:03:26,294 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 203 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-02 22:03:26,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2024-11-02 22:03:26,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 54.
[2024-11-02 22:03:26,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 22:03:26,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions.
[2024-11-02 22:03:26,321 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 55
[2024-11-02 22:03:26,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:03:26,322 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 71 transitions.
[2024-11-02 22:03:26,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2024-11-02 22:03:26,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions.
[2024-11-02 22:03:26,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-02 22:03:26,324 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:03:26,324 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:03:26,346 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 22:03:26,525 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 22:03:26,525 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:03:26,526 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:03:26,526 INFO  L85        PathProgramCache]: Analyzing trace with hash 1812581011, now seen corresponding path program 1 times
[2024-11-02 22:03:26,527 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:03:26,527 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065437802]
[2024-11-02 22:03:26,527 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:03:26,527 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:03:26,527 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:03:26,529 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 22:03:26,530 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 22:03:26,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:03:26,616 INFO  L255         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-11-02 22:03:26,622 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:03:38,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked.
[2024-11-02 22:03:38,675 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:04:56,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:04:56,415 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:04:56,416 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065437802]
[2024-11-02 22:04:56,416 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2065437802] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:04:56,416 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:04:56,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18
[2024-11-02 22:04:56,416 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493873740]
[2024-11-02 22:04:56,416 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:04:56,417 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:04:56,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:04:56,418 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:04:56,418 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306
[2024-11-02 22:04:56,418 INFO  L87              Difference]: Start difference. First operand 54 states and 71 transitions. Second operand  has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:04:59,159 INFO  L93              Difference]: Finished difference Result 89 states and 112 transitions.
[2024-11-02 22:04:59,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:04:59,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56
[2024-11-02 22:04:59,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:04:59,161 INFO  L225             Difference]: With dead ends: 89
[2024-11-02 22:04:59,162 INFO  L226             Difference]: Without dead ends: 87
[2024-11-02 22:04:59,162 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506
[2024-11-02 22:04:59,163 INFO  L432           NwaCegarLoop]: 34 mSDtfsCounter, 63 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-02 22:04:59,163 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 192 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-02 22:04:59,164 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-11-02 22:04:59,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 62.
[2024-11-02 22:04:59,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 22:04:59,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions.
[2024-11-02 22:04:59,176 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 56
[2024-11-02 22:04:59,176 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:04:59,176 INFO  L471      AbstractCegarLoop]: Abstraction has 62 states and 81 transitions.
[2024-11-02 22:04:59,177 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions.
[2024-11-02 22:04:59,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-02 22:04:59,178 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:04:59,178 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:59,198 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 22:04:59,378 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 22:04:59,380 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:04:59,380 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:04:59,380 INFO  L85        PathProgramCache]: Analyzing trace with hash 1419554001, now seen corresponding path program 1 times
[2024-11-02 22:04:59,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:04:59,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159626654]
[2024-11-02 22:04:59,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:04:59,381 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:04:59,381 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:04:59,383 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 22:04:59,384 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 22:04:59,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:04:59,443 INFO  L255         TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:04:59,445 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:04:59,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:04:59,457 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:04:59,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:04:59,491 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:04:59,491 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159626654]
[2024-11-02 22:04:59,491 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1159626654] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:04:59,492 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:04:59,492 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:04:59,492 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026338415]
[2024-11-02 22:04:59,492 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:04:59,492 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:04:59,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:04:59,493 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:04:59,493 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:04:59,493 INFO  L87              Difference]: Start difference. First operand 62 states and 81 transitions. Second operand  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,536 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:04:59,537 INFO  L93              Difference]: Finished difference Result 115 states and 149 transitions.
[2024-11-02 22:04:59,538 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:04:59,538 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56
[2024-11-02 22:04:59,538 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:04:59,539 INFO  L225             Difference]: With dead ends: 115
[2024-11-02 22:04:59,539 INFO  L226             Difference]: Without dead ends: 75
[2024-11-02 22:04:59,540 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:04:59,540 INFO  L432           NwaCegarLoop]: 54 mSDtfsCounter, 15 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:04:59,541 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 87 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:04:59,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-02 22:04:59,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64.
[2024-11-02 22:04:59,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 22:04:59,556 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions.
[2024-11-02 22:04:59,557 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 56
[2024-11-02 22:04:59,557 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:04:59,557 INFO  L471      AbstractCegarLoop]: Abstraction has 64 states and 83 transitions.
[2024-11-02 22:04:59,557 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,557 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions.
[2024-11-02 22:04:59,558 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-02 22:04:59,558 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:04:59,558 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:59,573 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 22:04:59,759 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 22:04:59,759 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:04:59,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:04:59,760 INFO  L85        PathProgramCache]: Analyzing trace with hash -239265633, now seen corresponding path program 1 times
[2024-11-02 22:04:59,760 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:04:59,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297024858]
[2024-11-02 22:04:59,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:04:59,760 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:04:59,761 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:04:59,762 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 22:04:59,763 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 22:04:59,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:04:59,817 INFO  L255         TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:04:59,819 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:04:59,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:04:59,833 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:04:59,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-11-02 22:04:59,861 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:04:59,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297024858]
[2024-11-02 22:04:59,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1297024858] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:04:59,862 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:04:59,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:04:59,862 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390169890]
[2024-11-02 22:04:59,862 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:04:59,863 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:04:59,863 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:04:59,863 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:04:59,863 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:04:59,864 INFO  L87              Difference]: Start difference. First operand 64 states and 83 transitions. Second operand  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,888 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:04:59,888 INFO  L93              Difference]: Finished difference Result 117 states and 150 transitions.
[2024-11-02 22:04:59,888 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:04:59,889 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 57
[2024-11-02 22:04:59,889 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:04:59,890 INFO  L225             Difference]: With dead ends: 117
[2024-11-02 22:04:59,890 INFO  L226             Difference]: Without dead ends: 75
[2024-11-02 22:04:59,890 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:04:59,891 INFO  L432           NwaCegarLoop]: 48 mSDtfsCounter, 12 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:04:59,891 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 85 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:04:59,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-02 22:04:59,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64.
[2024-11-02 22:04:59,898 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 47 states have (on average 1.148936170212766) internal successors, (54), 47 states have internal predecessors, (54), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-11-02 22:04:59,899 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions.
[2024-11-02 22:04:59,900 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 57
[2024-11-02 22:04:59,900 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:04:59,900 INFO  L471      AbstractCegarLoop]: Abstraction has 64 states and 82 transitions.
[2024-11-02 22:04:59,900 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-02 22:04:59,900 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions.
[2024-11-02 22:04:59,901 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-02 22:04:59,901 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:04:59,901 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:59,918 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-02 22:05:00,102 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 22:05:00,102 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:05:00,103 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:05:00,103 INFO  L85        PathProgramCache]: Analyzing trace with hash 461798945, now seen corresponding path program 1 times
[2024-11-02 22:05:00,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:05:00,103 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298046882]
[2024-11-02 22:05:00,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:05:00,103 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:05:00,104 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:05:00,105 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 22:05:00,106 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 22:05:00,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:05:00,171 INFO  L255         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-02 22:05:00,174 INFO  L278         TraceCheckSpWp]: Computing forward predicates...