/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem05_label54.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-03-30 22:55:35,830 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2023-03-30 22:55:35,878 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2023-03-30 22:55:35,879 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-03-30 22:55:35,880 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-03-30 22:55:35,881 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-03-30 22:55:35,881 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2023-03-30 22:55:35,882 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-03-30 22:55:35,883 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-03-30 22:55:35,884 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-03-30 22:55:35,906 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-03-30 22:55:35,906 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-03-30 22:55:35,906 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-03-30 22:55:35,906 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-03-30 22:55:35,907 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-03-30 22:55:35,907 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-03-30 22:55:35,908 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-03-30 22:55:35,908 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-03-30 22:55:35,908 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-03-30 22:55:35,908 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-03-30 22:55:35,909 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-03-30 22:55:35,910 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-03-30 22:55:35,910 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-30 22:55:35,911 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-03-30 22:55:35,911 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-03-30 22:55:35,912 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-03-30 22:55:35,912 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-03-30 22:55:35,912 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-03-30 22:55:35,912 INFO  L138        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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-03-30 22:55:36,119 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-03-30 22:55:36,142 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-03-30 22:55:36,144 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-03-30 22:55:36,145 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-03-30 22:55:36,145 INFO  L275        PluginConnector]: CDTParser initialized
[2023-03-30 22:55:36,147 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label54.c
[2023-03-30 22:55:37,434 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-03-30 22:55:38,048 INFO  L351              CDTParser]: Found 1 translation units.
[2023-03-30 22:55:38,049 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label54.c
[2023-03-30 22:55:38,101 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7586d8c78/ca0de3c0b50646e0b541fbbba0166c27/FLAG2f5b3275c
[2023-03-30 22:55:38,118 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7586d8c78/ca0de3c0b50646e0b541fbbba0166c27
[2023-03-30 22:55:38,121 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-03-30 22:55:38,123 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-03-30 22:55:38,124 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-03-30 22:55:38,124 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-03-30 22:55:38,127 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-03-30 22:55:38,127 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:55:38" (1/1) ...
[2023-03-30 22:55:38,128 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f5e499a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:38, skipping insertion in model container
[2023-03-30 22:55:38,129 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:55:38" (1/1) ...
[2023-03-30 22:55:38,135 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-03-30 22:55:38,308 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-03-30 22:55:39,890 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label54.c[380115,380128]
[2023-03-30 22:55:39,905 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-30 22:55:39,915 INFO  L203         MainTranslator]: Completed pre-run
[2023-03-30 22:55:40,744 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label54.c[380115,380128]
[2023-03-30 22:55:40,749 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-03-30 22:55:40,793 INFO  L208         MainTranslator]: Completed translation
[2023-03-30 22:55:40,793 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40 WrapperNode
[2023-03-30 22:55:40,793 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-03-30 22:55:40,795 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-03-30 22:55:40,795 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-03-30 22:55:40,795 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-03-30 22:55:40,805 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:40,806 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:40,870 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:40,871 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,031 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,072 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,100 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,123 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,173 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-03-30 22:55:41,174 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-03-30 22:55:41,174 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-03-30 22:55:41,175 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-03-30 22:55:41,175 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (1/1) ...
[2023-03-30 22:55:41,180 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-03-30 22:55:41,188 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-03-30 22:55:41,199 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-03-30 22:55:41,224 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-03-30 22:55:41,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-03-30 22:55:41,238 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-03-30 22:55:41,239 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-03-30 22:55:41,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-03-30 22:55:41,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-03-30 22:55:41,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-03-30 22:55:41,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-03-30 22:55:41,240 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2023-03-30 22:55:41,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2023-03-30 22:55:41,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2023-03-30 22:55:41,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2023-03-30 22:55:41,241 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-03-30 22:55:41,241 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-03-30 22:55:41,241 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-03-30 22:55:41,241 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-03-30 22:55:41,241 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-03-30 22:55:41,241 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-03-30 22:55:41,242 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-03-30 22:55:41,243 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-03-30 22:55:41,243 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-03-30 22:55:41,243 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-03-30 22:55:41,243 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-03-30 22:55:41,320 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-03-30 22:55:41,386 INFO  L236             CfgBuilder]: Building ICFG
[2023-03-30 22:55:41,389 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-03-30 22:55:47,871 INFO  L277             CfgBuilder]: Performing block encoding
[2023-03-30 22:55:47,891 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-03-30 22:55:47,891 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-03-30 22:55:47,896 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:55:47 BoogieIcfgContainer
[2023-03-30 22:55:47,896 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-03-30 22:55:47,898 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-03-30 22:55:47,899 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-03-30 22:55:47,902 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-03-30 22:55:47,902 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:55:38" (1/3) ...
[2023-03-30 22:55:47,902 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c9cb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:55:47, skipping insertion in model container
[2023-03-30 22:55:47,903 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:55:40" (2/3) ...
[2023-03-30 22:55:47,903 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c9cb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:55:47, skipping insertion in model container
[2023-03-30 22:55:47,903 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:55:47" (3/3) ...
[2023-03-30 22:55:47,904 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label54.c
[2023-03-30 22:55:47,920 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-03-30 22:55:47,920 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-03-30 22:55:47,998 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-03-30 22:55:48,004 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6d8fb656, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-03-30 22:55:48,004 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-03-30 22:55:48,015 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2222 states, 2200 states have (on average 1.864090909090909) internal successors, (4101), 2201 states have internal predecessors, (4101), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2023-03-30 22:55:48,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1697
[2023-03-30 22:55:48,117 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-30 22:55:48,118 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-03-30 22:55:48,119 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-30 22:55:48,124 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-30 22:55:48,125 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411921449, now seen corresponding path program 1 times
[2023-03-30 22:55:48,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-30 22:55:48,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219718415]
[2023-03-30 22:55:48,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-30 22:55:48,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-30 22:55:48,873 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-30 22:55:57,289 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-30 22:55:57,298 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-30 22:55:57,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-03-30 22:55:57,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-30 22:55:57,362 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219718415]
[2023-03-30 22:55:57,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219718415] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-30 22:55:57,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-30 22:55:57,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-03-30 22:55:57,365 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819611229]
[2023-03-30 22:55:57,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-30 22:55:57,373 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-03-30 22:55:57,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-30 22:55:57,410 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-03-30 22:55:57,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-03-30 22:55:57,418 INFO  L87              Difference]: Start difference. First operand  has 2222 states, 2200 states have (on average 1.864090909090909) internal successors, (4101), 2201 states have internal predecessors, (4101), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 5 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-30 22:56:07,963 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-30 22:56:07,963 INFO  L93              Difference]: Finished difference Result 6360 states and 11959 transitions.
[2023-03-30 22:56:07,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-03-30 22:56:07,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1696
[2023-03-30 22:56:07,973 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-03-30 22:56:08,004 INFO  L225             Difference]: With dead ends: 6360
[2023-03-30 22:56:08,005 INFO  L226             Difference]: Without dead ends: 4074
[2023-03-30 22:56:08,017 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-03-30 22:56:08,021 INFO  L413           NwaCegarLoop]: 296 mSDtfsCounter, 6764 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 8664 mSolverCounterSat, 3733 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6764 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 12397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3733 IncrementalHoareTripleChecker+Valid, 8664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time
[2023-03-30 22:56:08,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6764 Valid, 394 Invalid, 12397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3733 Valid, 8664 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time]
[2023-03-30 22:56:08,045 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4074 states.
[2023-03-30 22:56:08,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 3986.
[2023-03-30 22:56:08,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3986 states, 3941 states have (on average 1.8553666582085766) internal successors, (7312), 3943 states have internal predecessors, (7312), 18 states have call successors, (18), 18 states have call predecessors, (18), 26 states have return successors, (42), 24 states have call predecessors, (42), 17 states have call successors, (42)
[2023-03-30 22:56:08,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 7372 transitions.
[2023-03-30 22:56:08,226 INFO  L78                 Accepts]: Start accepts. Automaton has 3986 states and 7372 transitions. Word has length 1696
[2023-03-30 22:56:08,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-03-30 22:56:08,231 INFO  L495      AbstractCegarLoop]: Abstraction has 3986 states and 7372 transitions.
[2023-03-30 22:56:08,231 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-03-30 22:56:08,232 INFO  L276                IsEmpty]: Start isEmpty. Operand 3986 states and 7372 transitions.
[2023-03-30 22:56:08,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1707
[2023-03-30 22:56:08,310 INFO  L187           NwaCegarLoop]: Found error trace
[2023-03-30 22:56:08,311 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-03-30 22:56:08,311 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-03-30 22:56:08,312 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-03-30 22:56:08,312 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-03-30 22:56:08,313 INFO  L85        PathProgramCache]: Analyzing trace with hash 1725897993, now seen corresponding path program 1 times
[2023-03-30 22:56:08,313 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-03-30 22:56:08,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641732554]
[2023-03-30 22:56:08,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-03-30 22:56:08,314 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-03-30 22:56:08,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-30 22:56:11,528 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-03-30 22:56:11,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-30 22:56:11,551 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-03-30 22:56:11,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-03-30 22:56:11,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-03-30 22:56:11,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-03-30 22:56:11,574 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641732554]
[2023-03-30 22:56:11,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641732554] provided 1 perfect and 0 imperfect interpolant sequences
[2023-03-30 22:56:11,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-03-30 22:56:11,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-03-30 22:56:11,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331972599]
[2023-03-30 22:56:11,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-03-30 22:56:11,578 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-03-30 22:56:11,578 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-03-30 22:56:11,580 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-03-30 22:56:11,581 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-03-30 22:56:11,583 INFO  L87              Difference]: Start difference. First operand 3986 states and 7372 transitions. Second operand  has 8 states, 7 states have (on average 241.85714285714286) internal successors, (1693), 5 states have internal predecessors, (1693), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-03-30 22:56:25,445 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-03-30 22:56:25,451 INFO  L93              Difference]: Finished difference Result 15325 states and 28963 transitions.
[2023-03-30 22:56:25,452 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-03-30 22:56:25,453 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 241.85714285714286) internal successors, (1693), 5 states have internal predecessors, (1693), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1706
[2023-03-30 22:56:25,453 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.