/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_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:54:36,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:54:36,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:54:36,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-30 22:54:36,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:54:36,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:54:36,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:54:36,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:54:36,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:54:36,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:54:36,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:54:36,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:54:36,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:54:36,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:54:36,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:54:36,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:54:36,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:54:36,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:54:36,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:54:36,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:54:36,742 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 22:54:36,763 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:54:36,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:54:36,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:54:36,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:54:36,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:54:36,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:54:36,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:54:36,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:54:36,765 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:54:36,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:54:36,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:54:36,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:54:36,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:54:36,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:54:36,768 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:54:36,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:54:36,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:54:36,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:54:36,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:54:36,969 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:54:36,969 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:54:36,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label40.c [2023-03-30 22:54:38,050 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:54:38,519 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:54:38,520 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label40.c [2023-03-30 22:54:38,565 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f0bab56d/3137635491d04e3da3d1e5627bdba027/FLAGa87a08309 [2023-03-30 22:54:38,577 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f0bab56d/3137635491d04e3da3d1e5627bdba027 [2023-03-30 22:54:38,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:54:38,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:54:38,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:54:38,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:54:38,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:54:38,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:54:38" (1/1) ... [2023-03-30 22:54:38,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101cdb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:38, skipping insertion in model container [2023-03-30 22:54:38,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:54:38" (1/1) ... [2023-03-30 22:54:38,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:54:38,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:54:39,875 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_label40.c[376726,376739] [2023-03-30 22:54:39,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:54:39,904 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:54:40,460 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_label40.c[376726,376739] [2023-03-30 22:54:40,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:54:40,554 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:54:40,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40 WrapperNode [2023-03-30 22:54:40,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:54:40,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:54:40,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:54:40,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:54:40,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:54:40,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:54:40,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:54:40,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:54:40,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (1/1) ... [2023-03-30 22:54:40,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:54:40,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:54:40,930 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 22:54:40,945 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 22:54:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:54:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-30 22:54:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:54:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-30 22:54:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-30 22:54:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:54:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:54:41,024 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:54:41,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:54:46,139 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:54:46,154 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:54:46,154 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-30 22:54:46,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:54:46 BoogieIcfgContainer [2023-03-30 22:54:46,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:54:46,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:54:46,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:54:46,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:54:46,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:54:38" (1/3) ... [2023-03-30 22:54:46,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:54:46, skipping insertion in model container [2023-03-30 22:54:46,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:54:40" (2/3) ... [2023-03-30 22:54:46,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:54:46, skipping insertion in model container [2023-03-30 22:54:46,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:54:46" (3/3) ... [2023-03-30 22:54:46,163 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40.c [2023-03-30 22:54:46,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:54:46,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:54:46,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:54:46,304 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;@7013c028, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:54:46,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:54:46,312 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 22:54:46,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2023-03-30 22:54:46,384 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:54:46,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:46,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:54:46,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:54:46,393 INFO L85 PathProgramCache]: Analyzing trace with hash -422681614, now seen corresponding path program 1 times [2023-03-30 22:54:46,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:54:46,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517274038] [2023-03-30 22:54:46,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:54:46,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:54:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:54:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:54:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:54:53,222 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 22:54:53,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:54:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517274038] [2023-03-30 22:54:53,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517274038] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:54:53,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:54:53,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-30 22:54:53,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281141626] [2023-03-30 22:54:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:54:53,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-30 22:54:53,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:54:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-30 22:54:53,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-30 22:54:53,294 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 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:55:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:55:05,154 INFO L93 Difference]: Finished difference Result 8118 states and 15418 transitions. [2023-03-30 22:55:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-30 22:55:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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 1671 [2023-03-30 22:55:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:55:05,200 INFO L225 Difference]: With dead ends: 8118 [2023-03-30 22:55:05,200 INFO L226 Difference]: Without dead ends: 5828 [2023-03-30 22:55:05,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-03-30 22:55:05,215 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 7049 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 10767 mSolverCounterSat, 5370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7049 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 16137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5370 IncrementalHoareTripleChecker+Valid, 10767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-03-30 22:55:05,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7049 Valid, 477 Invalid, 16137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5370 Valid, 10767 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-03-30 22:55:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2023-03-30 22:55:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5783. [2023-03-30 22:55:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 5713 states have (on average 1.7376159635918083) internal successors, (9927), 5716 states have internal predecessors, (9927), 26 states have call successors, (26), 26 states have call predecessors, (26), 43 states have return successors, (98), 40 states have call predecessors, (98), 25 states have call successors, (98) [2023-03-30 22:55:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 10051 transitions. [2023-03-30 22:55:05,399 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 10051 transitions. Word has length 1671 [2023-03-30 22:55:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:55:05,403 INFO L495 AbstractCegarLoop]: Abstraction has 5783 states and 10051 transitions. [2023-03-30 22:55:05,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 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 22:55:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 10051 transitions. [2023-03-30 22:55:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1687 [2023-03-30 22:55:05,494 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:55:05,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:55:05,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-30 22:55:05,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:55:05,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:55:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -549030843, now seen corresponding path program 1 times [2023-03-30 22:55:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:55:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444747877] [2023-03-30 22:55:05,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:55:05,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:55:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:55:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 22:55:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:55:07,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:55:07,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444747877] [2023-03-30 22:55:07,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444747877] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:55:07,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:55:07,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-30 22:55:07,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572421732] [2023-03-30 22:55:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:55:07,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-30 22:55:07,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:55:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-30 22:55:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-03-30 22:55:07,322 INFO L87 Difference]: Start difference. First operand 5783 states and 10051 transitions. Second operand has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 22:55:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:55:16,446 INFO L93 Difference]: Finished difference Result 16971 states and 29948 transitions. [2023-03-30 22:55:16,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-30 22:55:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 1686 [2023-03-30 22:55:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:55:16,484 INFO L225 Difference]: With dead ends: 16971 [2023-03-30 22:55:16,484 INFO L226 Difference]: Without dead ends: 11194 [2023-03-30 22:55:16,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-03-30 22:55:16,499 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 9925 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 12780 mSolverCounterSat, 2683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9925 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 15463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2683 IncrementalHoareTripleChecker+Valid, 12780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-03-30 22:55:16,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9925 Valid, 800 Invalid, 15463 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2683 Valid, 12780 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-03-30 22:55:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2023-03-30 22:55:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 11126. [2023-03-30 22:55:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11126 states, 10955 states have (on average 1.6466453674121406) internal successors, (18039), 10965 states have internal predecessors, (18039), 50 states have call successors, (50), 50 states have call predecessors, (50), 120 states have return successors, (385), 110 states have call predecessors, (385), 49 states have call successors, (385) [2023-03-30 22:55:16,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11126 states to 11126 states and 18474 transitions. [2023-03-30 22:55:16,706 INFO L78 Accepts]: Start accepts. Automaton has 11126 states and 18474 transitions. Word has length 1686 [2023-03-30 22:55:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:55:16,707 INFO L495 AbstractCegarLoop]: Abstraction has 11126 states and 18474 transitions. [2023-03-30 22:55:16,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 22:55:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 11126 states and 18474 transitions. [2023-03-30 22:55:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2023-03-30 22:55:16,782 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:55:16,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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] [2023-03-30 22:55:16,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-30 22:55:16,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:55:16,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:55:16,784 INFO L85 PathProgramCache]: Analyzing trace with hash 230941421, now seen corresponding path program 1 times [2023-03-30 22:55:16,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:55:16,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310122479] [2023-03-30 22:55:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:55:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:55:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:55:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 22:55:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:55:18,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:55:18,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310122479] [2023-03-30 22:55:18,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310122479] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:55:18,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:55:18,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-30 22:55:18,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589316268] [2023-03-30 22:55:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:55:18,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-30 22:55:18,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:55:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-30 22:55:18,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-03-30 22:55:18,552 INFO L87 Difference]: Start difference. First operand 11126 states and 18474 transitions. Second operand has 8 states, 7 states have (on average 250.14285714285714) internal successors, (1751), 5 states have internal predecessors, (1751), 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 22:55:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:55:30,212 INFO L93 Difference]: Finished difference Result 33341 states and 55533 transitions. [2023-03-30 22:55:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-30 22:55:30,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 250.14285714285714) internal successors, (1751), 5 states have internal predecessors, (1751), 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 1764 [2023-03-30 22:55:30,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:55:30,263 INFO L225 Difference]: With dead ends: 33341 [2023-03-30 22:55:30,263 INFO L226 Difference]: Without dead ends: 22221 [2023-03-30 22:55:30,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-03-30 22:55:30,283 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 11914 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 17656 mSolverCounterSat, 3641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11914 SdHoareTripleChecker+Valid, 1173 SdHoareTripleChecker+Invalid, 21297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3641 IncrementalHoareTripleChecker+Valid, 17656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:55:30,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11914 Valid, 1173 Invalid, 21297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3641 Valid, 17656 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-03-30 22:55:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22221 states. [2023-03-30 22:55:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22221 to 22148. [2023-03-30 22:55:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22148 states, 21665 states have (on average 1.33464112624048) internal successors, (28915), 21704 states have internal predecessors, (28915), 98 states have call successors, (98), 98 states have call predecessors, (98), 384 states have return successors, (1680), 345 states have call predecessors, (1680), 97 states have call successors, (1680) [2023-03-30 22:55:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22148 states to 22148 states and 30693 transitions. [2023-03-30 22:55:30,593 INFO L78 Accepts]: Start accepts. Automaton has 22148 states and 30693 transitions. Word has length 1764 [2023-03-30 22:55:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:55:30,593 INFO L495 AbstractCegarLoop]: Abstraction has 22148 states and 30693 transitions. [2023-03-30 22:55:30,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 250.14285714285714) internal successors, (1751), 5 states have internal predecessors, (1751), 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 22:55:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 22148 states and 30693 transitions. [2023-03-30 22:55:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1839 [2023-03-30 22:55:30,698 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:55:30,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:55:30,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-30 22:55:30,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:55:30,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:55:30,700 INFO L85 PathProgramCache]: Analyzing trace with hash 161438577, now seen corresponding path program 1 times [2023-03-30 22:55:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:55:30,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68397594] [2023-03-30 22:55:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:55:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:55:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:55:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-30 22:55:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-30 22:55:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 161 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-30 22:55:32,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:55:32,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68397594] [2023-03-30 22:55:32,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68397594] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-30 22:55:32,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678399295] [2023-03-30 22:55:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:55:32,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:55:32,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:55:32,237 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) [2023-03-30 22:55:32,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:55:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:55:32,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-30 22:55:32,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:55:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-03-30 22:55:32,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:55:32,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678399295] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:55:32,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-30 22:55:32,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-03-30 22:55:32,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560789190] [2023-03-30 22:55:32,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:55:32,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-30 22:55:32,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:55:32,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-30 22:55:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-03-30 22:55:32,885 INFO L87 Difference]: Start difference. First operand 22148 states and 30693 transitions. Second operand has 5 states, 5 states have (on average 346.8) internal successors, (1734), 4 states have internal predecessors, (1734), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)