/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-97.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:38:04,761 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:38:04,818 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 22:38:04,822 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:38:04,822 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:38:04,846 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:38:04,847 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:38:04,847 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:38:04,848 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:38:04,848 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:38:04,848 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:38:04,849 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:38:04,849 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:38:04,849 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:38:04,849 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:38:04,850 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:38:04,850 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:38:04,850 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:38:04,850 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:38:04,850 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:38:04,851 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:38:04,853 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:38:04,853 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:38:04,853 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:38:04,854 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:38:04,855 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:38:04,855 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:38:04,855 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:38:04,855 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:38:04,855 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:38:04,855 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:38:04,856 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:38:04,856 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:38:04,856 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:38:04,857 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:38:04,857 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:38:04,858 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:38:04,858 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:38:04,858 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:38:04,858 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:05,020 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:38:05,041 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:38:05,043 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:38:05,044 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:38:05,044 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:38:05,045 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-97.i
[2024-11-02 22:38:06,255 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:38:06,397 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:38:06,397 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-97.i
[2024-11-02 22:38:06,405 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a48e00bd/758e64073e124b30b832ffc8b12bcec3/FLAGa945c243e
[2024-11-02 22:38:06,820 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a48e00bd/758e64073e124b30b832ffc8b12bcec3
[2024-11-02 22:38:06,822 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:38:06,823 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:38:06,824 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:38:06,824 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:38:06,829 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:38:06,830 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:38:06" (1/1) ...
[2024-11-02 22:38:06,831 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66552bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:06, skipping insertion in model container
[2024-11-02 22:38:06,831 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:38:06" (1/1) ...
[2024-11-02 22:38:06,855 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:38:06,981 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-97.i[915,928]
[2024-11-02 22:38:07,026 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:38:07,036 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:38:07,048 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-97.i[915,928]
[2024-11-02 22:38:07,078 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:38:07,093 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:38:07,093 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07 WrapperNode
[2024-11-02 22:38:07,094 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:38:07,094 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:38:07,094 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:38:07,095 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:38:07,100 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,108 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,128 INFO  L138                Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126
[2024-11-02 22:38:07,128 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:38:07,129 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:38:07,129 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:38:07,129 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:38:07,136 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,136 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,138 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,152 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 22:38:07,152 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,152 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,158 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,160 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,161 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,162 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,164 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:38:07,165 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:38:07,165 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:38:07,165 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:38:07,166 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (1/1) ...
[2024-11-02 22:38:07,169 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:38:07,179 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:07,189 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 22:38:07,191 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 22:38:07,207 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:38:07,207 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:38:07,207 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-02 22:38:07,207 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-02 22:38:07,208 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:38:07,208 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:38:07,264 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:38:07,265 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:38:07,470 INFO  L?                        ?]: Removed 18 outVars from TransFormulas that were not future-live.
[2024-11-02 22:38:07,471 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:38:07,482 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:38:07,482 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:38:07,482 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:07 BoogieIcfgContainer
[2024-11-02 22:38:07,483 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:38:07,484 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:38:07,485 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:38:07,487 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:38:07,487 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:38:06" (1/3) ...
[2024-11-02 22:38:07,488 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5814d0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:07, skipping insertion in model container
[2024-11-02 22:38:07,488 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:38:07" (2/3) ...
[2024-11-02 22:38:07,488 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5814d0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:07, skipping insertion in model container
[2024-11-02 22:38:07,489 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:07" (3/3) ...
[2024-11-02 22:38:07,490 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-97.i
[2024-11-02 22:38:07,501 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:38:07,501 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:38:07,562 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:38:07,566 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;@597df973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:38:07,566 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:38:07,569 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 22:38:07,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-02 22:38:07,576 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:07,576 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:38:07,580 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:07,584 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:07,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 634659171, now seen corresponding path program 1 times
[2024-11-02 22:38:07,590 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:07,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762767417]
[2024-11-02 22:38:07,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:07,592 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:07,592 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:07,593 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 22:38:07,595 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 22:38:07,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:07,709 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:07,718 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:07,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 22:38:07,744 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:07,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2024-11-02 22:38:07,831 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:07,831 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762767417]
[2024-11-02 22:38:07,832 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1762767417] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-02 22:38:07,832 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-02 22:38:07,832 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-02 22:38:07,833 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650637419]
[2024-11-02 22:38:07,834 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:07,840 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-02 22:38:07,840 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:07,855 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-02 22:38:07,855 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-02 22:38:07,857 INFO  L87              Difference]: Start difference. First operand  has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 22:38:07,872 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:07,872 INFO  L93              Difference]: Finished difference Result 109 states and 182 transitions.
[2024-11-02 22:38:07,873 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-02 22:38:07,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 107
[2024-11-02 22:38:07,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:07,879 INFO  L225             Difference]: With dead ends: 109
[2024-11-02 22:38:07,879 INFO  L226             Difference]: Without dead ends: 54
[2024-11-02 22:38:07,881 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 22:38:07,883 INFO  L432           NwaCegarLoop]: 79 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, 79 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 22:38:07,884 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:38:07,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-02 22:38:07,908 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2024-11-02 22:38:07,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 22:38:07,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions.
[2024-11-02 22:38:07,913 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 107
[2024-11-02 22:38:07,913 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:07,914 INFO  L471      AbstractCegarLoop]: Abstraction has 54 states and 79 transitions.
[2024-11-02 22:38:07,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2024-11-02 22:38:07,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions.
[2024-11-02 22:38:07,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-02 22:38:07,918 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:07,918 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:38:07,934 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 22:38:08,119 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 22:38:08,120 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:08,121 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:08,121 INFO  L85        PathProgramCache]: Analyzing trace with hash 1931481759, now seen corresponding path program 1 times
[2024-11-02 22:38:08,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:08,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572417658]
[2024-11-02 22:38:08,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:08,121 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:08,122 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:08,123 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 22:38:08,123 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 22:38:08,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:08,236 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:08,241 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:08,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:08,266 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:08,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:08,331 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:08,331 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572417658]
[2024-11-02 22:38:08,332 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1572417658] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:38:08,332 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:38:08,332 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-02 22:38:08,332 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005274075]
[2024-11-02 22:38:08,332 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:08,333 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-02 22:38:08,333 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:08,334 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-02 22:38:08,334 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-02 22:38:08,336 INFO  L87              Difference]: Start difference. First operand 54 states and 79 transitions. Second operand  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:38:08,399 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:08,399 INFO  L93              Difference]: Finished difference Result 153 states and 225 transitions.
[2024-11-02 22:38:08,399 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:38:08,400 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107
[2024-11-02 22:38:08,400 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:08,401 INFO  L225             Difference]: With dead ends: 153
[2024-11-02 22:38:08,401 INFO  L226             Difference]: Without dead ends: 102
[2024-11-02 22:38:08,402 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 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 22:38:08,403 INFO  L432           NwaCegarLoop]: 139 mSDtfsCounter, 68 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:38:08,405 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 202 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-02 22:38:08,407 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2024-11-02 22:38:08,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 62.
[2024-11-02 22:38:08,416 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2024-11-02 22:38:08,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions.
[2024-11-02 22:38:08,417 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 107
[2024-11-02 22:38:08,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:08,418 INFO  L471      AbstractCegarLoop]: Abstraction has 62 states and 89 transitions.
[2024-11-02 22:38:08,418 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2024-11-02 22:38:08,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions.
[2024-11-02 22:38:08,419 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2024-11-02 22:38:08,419 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:08,419 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:38:08,434 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 22:38:08,620 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 22:38:08,621 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:08,621 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:08,621 INFO  L85        PathProgramCache]: Analyzing trace with hash -1662420959, now seen corresponding path program 1 times
[2024-11-02 22:38:08,622 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:08,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077331814]
[2024-11-02 22:38:08,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:08,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:08,622 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:08,623 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 22:38:08,624 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 22:38:08,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:08,698 INFO  L255         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:08,701 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:08,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:08,912 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:09,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:09,123 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:09,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077331814]
[2024-11-02 22:38:09,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2077331814] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:38:09,124 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:38:09,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 22:38:09,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152762275]
[2024-11-02 22:38:09,124 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:09,126 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:38:09,126 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:09,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:38:09,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:38:09,127 INFO  L87              Difference]: Start difference. First operand 62 states and 89 transitions. Second operand  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 22:38:09,605 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:09,605 INFO  L93              Difference]: Finished difference Result 261 states and 379 transitions.
[2024-11-02 22:38:09,607 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-02 22:38:09,607 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107
[2024-11-02 22:38:09,608 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:09,611 INFO  L225             Difference]: With dead ends: 261
[2024-11-02 22:38:09,611 INFO  L226             Difference]: Without dead ends: 202
[2024-11-02 22:38:09,612 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2024-11-02 22:38:09,613 INFO  L432           NwaCegarLoop]: 117 mSDtfsCounter, 237 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-02 22:38:09,613 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 405 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-02 22:38:09,615 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2024-11-02 22:38:09,645 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 122.
[2024-11-02 22:38:09,646 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122 states, 87 states have (on average 1.264367816091954) internal successors, (110), 87 states have internal predecessors, (110), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2024-11-02 22:38:09,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 174 transitions.
[2024-11-02 22:38:09,649 INFO  L78                 Accepts]: Start accepts. Automaton has 122 states and 174 transitions. Word has length 107
[2024-11-02 22:38:09,649 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:09,650 INFO  L471      AbstractCegarLoop]: Abstraction has 122 states and 174 transitions.
[2024-11-02 22:38:09,650 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 22:38:09,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 174 transitions.
[2024-11-02 22:38:09,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 109
[2024-11-02 22:38:09,651 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:09,651 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:38:09,666 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 22:38:09,855 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 22:38:09,856 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:09,856 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:09,856 INFO  L85        PathProgramCache]: Analyzing trace with hash 1132663117, now seen corresponding path program 1 times
[2024-11-02 22:38:09,857 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:09,857 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758777035]
[2024-11-02 22:38:09,857 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:09,857 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:09,857 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:09,858 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 22:38:09,859 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 22:38:09,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:09,932 INFO  L255         TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:09,935 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:38:10,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:10,345 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:38:10,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2024-11-02 22:38:10,557 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:38:10,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758777035]
[2024-11-02 22:38:10,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1758777035] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:38:10,557 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:38:10,557 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8
[2024-11-02 22:38:10,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208467126]
[2024-11-02 22:38:10,558 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:38:10,558 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-02 22:38:10,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:38:10,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-02 22:38:10,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-11-02 22:38:10,559 INFO  L87              Difference]: Start difference. First operand 122 states and 174 transitions. Second operand  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 22:38:11,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:38:11,246 INFO  L93              Difference]: Finished difference Result 376 states and 528 transitions.
[2024-11-02 22:38:11,250 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-02 22:38:11,250 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108
[2024-11-02 22:38:11,250 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:38:11,252 INFO  L225             Difference]: With dead ends: 376
[2024-11-02 22:38:11,252 INFO  L226             Difference]: Without dead ends: 257
[2024-11-02 22:38:11,256 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-11-02 22:38:11,256 INFO  L432           NwaCegarLoop]: 76 mSDtfsCounter, 186 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-02 22:38:11,257 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 304 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-02 22:38:11,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2024-11-02 22:38:11,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 232.
[2024-11-02 22:38:11,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 232 states, 163 states have (on average 1.2392638036809815) internal successors, (202), 163 states have internal predecessors, (202), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2024-11-02 22:38:11,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 330 transitions.
[2024-11-02 22:38:11,309 INFO  L78                 Accepts]: Start accepts. Automaton has 232 states and 330 transitions. Word has length 108
[2024-11-02 22:38:11,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:38:11,311 INFO  L471      AbstractCegarLoop]: Abstraction has 232 states and 330 transitions.
[2024-11-02 22:38:11,311 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)
[2024-11-02 22:38:11,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 330 transitions.
[2024-11-02 22:38:11,312 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-02 22:38:11,312 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:38:11,312 INFO  L215           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:38:11,328 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 22:38:11,513 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 22:38:11,513 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:38:11,514 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:38:11,514 INFO  L85        PathProgramCache]: Analyzing trace with hash 808167104, now seen corresponding path program 1 times
[2024-11-02 22:38:11,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:38:11,514 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277241841]
[2024-11-02 22:38:11,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:38:11,514 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:38:11,514 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:38:11,515 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 22:38:11,516 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 22:38:11,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:38:11,582 INFO  L255         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-11-02 22:38:11,586 INFO  L278         TraceCheckSpWp]: Computing forward predicates...