./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-sorted-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/sll-sorted-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 618946a6e113450d0f3efa55a455801e1c2225c3ba6f88e87a9e8ad02019b85f --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 06:05:47,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 06:05:47,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 06:05:47,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 06:05:47,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 06:05:47,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 06:05:47,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 06:05:47,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 06:05:47,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 06:05:47,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 06:05:47,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 06:05:47,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 06:05:47,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 06:05:47,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 06:05:47,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 06:05:47,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 06:05:47,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 06:05:47,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 06:05:47,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 06:05:47,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 06:05:47,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 06:05:47,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 06:05:47,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 06:05:47,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 06:05:47,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 06:05:47,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 06:05:47,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 06:05:47,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 06:05:47,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 06:05:47,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 06:05:47,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 06:05:47,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 06:05:47,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 06:05:47,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 06:05:47,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 06:05:47,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 06:05:47,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 06:05:47,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 06:05:47,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 06:05:47,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 06:05:47,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 06:05:47,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 06:05:47,969 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 06:05:47,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 06:05:47,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 06:05:47,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 06:05:47,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 06:05:47,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 06:05:47,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 06:05:47,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 06:05:47,972 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 06:05:47,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 06:05:47,973 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 06:05:47,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 06:05:47,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 06:05:47,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 06:05:47,975 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 06:05:47,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 06:05:47,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 06:05:47,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 06:05:47,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 06:05:47,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:05:47,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 06:05:47,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 06:05:47,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 06:05:47,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 06:05:47,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 06:05:47,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 06:05:47,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 06:05:47,977 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 06:05:47,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 06:05:47,978 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 06:05:47,978 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618946a6e113450d0f3efa55a455801e1c2225c3ba6f88e87a9e8ad02019b85f [2023-02-17 06:05:48,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 06:05:48,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 06:05:48,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 06:05:48,238 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 06:05:48,239 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 06:05:48,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-sorted-2.i [2023-02-17 06:05:49,356 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 06:05:49,537 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 06:05:49,537 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i [2023-02-17 06:05:49,547 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed5f64ed/afbe90f940514ce5bf55883b3c5fa472/FLAG81a74ae0c [2023-02-17 06:05:49,564 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ed5f64ed/afbe90f940514ce5bf55883b3c5fa472 [2023-02-17 06:05:49,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 06:05:49,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 06:05:49,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 06:05:49,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 06:05:49,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 06:05:49,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673ddada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49, skipping insertion in model container [2023-02-17 06:05:49,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 06:05:49,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 06:05:49,778 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22317,22330] [2023-02-17 06:05:49,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22452,22465] [2023-02-17 06:05:49,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22612,22625] [2023-02-17 06:05:49,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22941,22954] [2023-02-17 06:05:49,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23005,23018] [2023-02-17 06:05:49,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23136,23149] [2023-02-17 06:05:49,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23200,23213] [2023-02-17 06:05:49,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:05:49,816 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 06:05:49,861 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22317,22330] [2023-02-17 06:05:49,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22452,22465] [2023-02-17 06:05:49,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22612,22625] [2023-02-17 06:05:49,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[22941,22954] [2023-02-17 06:05:49,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23005,23018] [2023-02-17 06:05:49,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23136,23149] [2023-02-17 06:05:49,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i[23200,23213] [2023-02-17 06:05:49,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:05:49,904 INFO L208 MainTranslator]: Completed translation [2023-02-17 06:05:49,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49 WrapperNode [2023-02-17 06:05:49,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 06:05:49,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 06:05:49,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 06:05:49,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 06:05:49,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,940 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 196 [2023-02-17 06:05:49,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 06:05:49,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 06:05:49,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 06:05:49,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 06:05:49,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,972 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 06:05:49,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 06:05:49,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 06:05:49,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 06:05:49,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (1/1) ... [2023-02-17 06:05:49,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:05:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:05:50,009 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) [2023-02-17 06:05:50,048 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 [2023-02-17 06:05:50,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 06:05:50,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 06:05:50,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 06:05:50,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 06:05:50,188 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 06:05:50,189 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 06:05:50,420 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 06:05:50,425 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 06:05:50,425 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2023-02-17 06:05:50,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:05:50 BoogieIcfgContainer [2023-02-17 06:05:50,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 06:05:50,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 06:05:50,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 06:05:50,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 06:05:50,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:05:49" (1/3) ... [2023-02-17 06:05:50,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f423143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:05:50, skipping insertion in model container [2023-02-17 06:05:50,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:05:49" (2/3) ... [2023-02-17 06:05:50,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f423143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:05:50, skipping insertion in model container [2023-02-17 06:05:50,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:05:50" (3/3) ... [2023-02-17 06:05:50,444 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2023-02-17 06:05:50,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 06:05:50,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-17 06:05:50,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 06:05:50,523 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;@339e2722, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 06:05:50,524 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-17 06:05:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 61 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 06:05:50,531 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:50,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 06:05:50,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash 890153286, now seen corresponding path program 1 times [2023-02-17 06:05:50,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:50,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624359976] [2023-02-17 06:05:50,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:50,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:50,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624359976] [2023-02-17 06:05:50,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624359976] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:05:50,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:05:50,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 06:05:50,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897144539] [2023-02-17 06:05:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:05:50,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 06:05:50,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:05:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 06:05:50,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 06:05:50,758 INFO L87 Difference]: Start difference. First operand has 62 states, 54 states have (on average 1.8518518518518519) internal successors, (100), 61 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:05:50,777 INFO L93 Difference]: Finished difference Result 118 states and 190 transitions. [2023-02-17 06:05:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 06:05:50,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 06:05:50,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:05:50,786 INFO L225 Difference]: With dead ends: 118 [2023-02-17 06:05:50,786 INFO L226 Difference]: Without dead ends: 56 [2023-02-17 06:05:50,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 06:05:50,792 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:05:50,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:05:50,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-02-17 06:05:50,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-02-17 06:05:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 49 states have (on average 1.346938775510204) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2023-02-17 06:05:50,838 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 6 [2023-02-17 06:05:50,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:05:50,839 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2023-02-17 06:05:50,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2023-02-17 06:05:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 06:05:50,840 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:50,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:05:50,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 06:05:50,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1806859191, now seen corresponding path program 1 times [2023-02-17 06:05:50,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:50,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628883532] [2023-02-17 06:05:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:50,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628883532] [2023-02-17 06:05:50,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628883532] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:05:50,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:05:50,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 06:05:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642020902] [2023-02-17 06:05:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:05:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 06:05:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:05:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 06:05:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:05:50,915 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:05:50,941 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2023-02-17 06:05:50,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 06:05:50,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 06:05:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:05:50,942 INFO L225 Difference]: With dead ends: 115 [2023-02-17 06:05:50,942 INFO L226 Difference]: Without dead ends: 61 [2023-02-17 06:05:50,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:05:50,943 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 33 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:05:50,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 86 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:05:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-17 06:05:50,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2023-02-17 06:05:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 59 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2023-02-17 06:05:50,949 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 7 [2023-02-17 06:05:50,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:05:50,949 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2023-02-17 06:05:50,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-02-17 06:05:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-17 06:05:50,950 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:50,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:05:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 06:05:50,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash 443319948, now seen corresponding path program 1 times [2023-02-17 06:05:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:50,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883297859] [2023-02-17 06:05:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 06:05:51,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:51,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883297859] [2023-02-17 06:05:51,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883297859] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:05:51,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:05:51,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 06:05:51,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134242519] [2023-02-17 06:05:51,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:05:51,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 06:05:51,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:05:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 06:05:51,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 06:05:51,065 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:51,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:05:51,122 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2023-02-17 06:05:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 06:05:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-17 06:05:51,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:05:51,123 INFO L225 Difference]: With dead ends: 99 [2023-02-17 06:05:51,124 INFO L226 Difference]: Without dead ends: 97 [2023-02-17 06:05:51,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 06:05:51,125 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 153 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:05:51,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 75 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:05:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-17 06:05:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2023-02-17 06:05:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2023-02-17 06:05:51,131 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2023-02-17 06:05:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:05:51,131 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2023-02-17 06:05:51,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2023-02-17 06:05:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 06:05:51,132 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:51,132 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:05:51,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 06:05:51,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:51,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:51,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2064961448, now seen corresponding path program 1 times [2023-02-17 06:05:51,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841362339] [2023-02-17 06:05:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:51,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:51,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841362339] [2023-02-17 06:05:51,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841362339] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:05:51,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806170966] [2023-02-17 06:05:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:51,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:05:51,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:05:51,745 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) [2023-02-17 06:05:51,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 06:05:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:51,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-17 06:05:51,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:05:51,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-17 06:05:51,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-17 06:05:51,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:51,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-02-17 06:05:51,987 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:51,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 32 [2023-02-17 06:05:51,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-17 06:05:52,000 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:52,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-17 06:05:52,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2023-02-17 06:05:52,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-02-17 06:05:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:52,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:05:52,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:52,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806170966] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:05:52,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:05:52,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2023-02-17 06:05:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808517840] [2023-02-17 06:05:52,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:05:52,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 06:05:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:05:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 06:05:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=229, Unknown=4, NotChecked=0, Total=272 [2023-02-17 06:05:52,225 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:05:53,521 INFO L93 Difference]: Finished difference Result 251 states and 305 transitions. [2023-02-17 06:05:53,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-17 06:05:53,536 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-17 06:05:53,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:05:53,538 INFO L225 Difference]: With dead ends: 251 [2023-02-17 06:05:53,538 INFO L226 Difference]: Without dead ends: 195 [2023-02-17 06:05:53,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=1019, Unknown=4, NotChecked=0, Total=1260 [2023-02-17 06:05:53,540 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 313 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-17 06:05:53,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1016 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-17 06:05:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-02-17 06:05:53,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 80. [2023-02-17 06:05:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 74 states have (on average 1.337837837837838) internal successors, (99), 79 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:53,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 99 transitions. [2023-02-17 06:05:53,581 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 99 transitions. Word has length 18 [2023-02-17 06:05:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:05:53,581 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 99 transitions. [2023-02-17 06:05:53,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:53,583 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 99 transitions. [2023-02-17 06:05:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 06:05:53,584 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:53,585 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:05:53,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 06:05:53,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:05:53,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:53,792 INFO L85 PathProgramCache]: Analyzing trace with hash -644381054, now seen corresponding path program 1 times [2023-02-17 06:05:53,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:53,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507840799] [2023-02-17 06:05:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:53,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:55,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:55,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507840799] [2023-02-17 06:05:55,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507840799] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:05:55,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847024034] [2023-02-17 06:05:55,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:55,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:05:55,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:05:55,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:05:55,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 06:05:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:55,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-17 06:05:55,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:05:55,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-17 06:05:55,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:05:55,846 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:55,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-17 06:05:55,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-17 06:05:55,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:05:55,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:55,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-17 06:05:56,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-17 06:05:56,050 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-17 06:05:56,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-02-17 06:05:56,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 06:05:56,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-17 06:05:56,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-17 06:05:56,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 97 [2023-02-17 06:05:56,315 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-17 06:05:56,315 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2023-02-17 06:05:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:56,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:05:56,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2023-02-17 06:05:56,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 142 [2023-02-17 06:05:56,499 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 126 [2023-02-17 06:05:56,519 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 149 [2023-02-17 06:05:56,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:56,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 215 [2023-02-17 06:05:56,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 197 [2023-02-17 06:05:56,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 195 [2023-02-17 06:05:56,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 191 [2023-02-17 06:05:56,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 189 [2023-02-17 06:05:56,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 185 [2023-02-17 06:05:56,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 179 [2023-02-17 06:05:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:56,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847024034] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:05:56,678 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:05:56,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2023-02-17 06:05:56,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109568434] [2023-02-17 06:05:56,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:05:56,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-17 06:05:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:05:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-17 06:05:56,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=200, Unknown=1, NotChecked=0, Total=240 [2023-02-17 06:05:56,680 INFO L87 Difference]: Start difference. First operand 80 states and 99 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:57,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:05:57,165 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2023-02-17 06:05:57,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 06:05:57,165 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-17 06:05:57,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:05:57,166 INFO L225 Difference]: With dead ends: 118 [2023-02-17 06:05:57,166 INFO L226 Difference]: Without dead ends: 116 [2023-02-17 06:05:57,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=340, Unknown=1, NotChecked=0, Total=420 [2023-02-17 06:05:57,167 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-17 06:05:57,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 409 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-17 06:05:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-02-17 06:05:57,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 92. [2023-02-17 06:05:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 91 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2023-02-17 06:05:57,182 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 21 [2023-02-17 06:05:57,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:05:57,182 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2023-02-17 06:05:57,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:05:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2023-02-17 06:05:57,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 06:05:57,193 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:05:57,193 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:05:57,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 06:05:57,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:05:57,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:05:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:05:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2029850711, now seen corresponding path program 1 times [2023-02-17 06:05:57,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:05:57,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479690532] [2023-02-17 06:05:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:05:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:58,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:05:58,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479690532] [2023-02-17 06:05:58,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479690532] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:05:58,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725902318] [2023-02-17 06:05:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:05:58,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:05:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:05:58,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:05:58,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 06:05:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:05:58,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-17 06:05:58,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:05:58,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-17 06:05:58,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:05:58,872 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:58,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-17 06:05:58,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-17 06:05:58,897 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:58,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-17 06:05:58,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:05:58,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 06:05:58,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 06:05:58,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-17 06:05:58,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-02-17 06:05:58,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-02-17 06:05:58,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:58,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:58,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-17 06:05:58,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2023-02-17 06:05:58,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:59,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:59,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2023-02-17 06:05:59,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:59,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-17 06:05:59,010 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 38 [2023-02-17 06:05:59,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 79 [2023-02-17 06:05:59,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-02-17 06:05:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:05:59,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2023-02-17 06:05:59,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2023-02-17 06:05:59,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 54 [2023-02-17 06:05:59,133 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-17 06:05:59,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 17 [2023-02-17 06:05:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:05:59,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:05:59,194 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_369 (Array Int Int)) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_370 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_370) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_371) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_369) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false [2023-02-17 06:05:59,241 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 54 [2023-02-17 06:05:59,244 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 95 [2023-02-17 06:05:59,248 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 73 [2023-02-17 06:05:59,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2023-02-17 06:05:59,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-02-17 06:05:59,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-02-17 06:05:59,353 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 106 [2023-02-17 06:05:59,360 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 90 [2023-02-17 06:05:59,375 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 310 treesize of output 233 [2023-02-17 06:05:59,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 211 [2023-02-17 06:05:59,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 209 [2023-02-17 06:05:59,402 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 346 treesize of output 345 [2023-02-17 06:05:59,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 325 [2023-02-17 06:05:59,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 325 treesize of output 317 [2023-02-17 06:05:59,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:05:59,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 317 treesize of output 320 [2023-02-17 06:05:59,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 303 [2023-02-17 06:06:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-17 06:06:00,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725902318] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:06:00,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:06:00,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2023-02-17 06:06:00,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350620833] [2023-02-17 06:06:00,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:06:00,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-17 06:06:00,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:06:00,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-17 06:06:00,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=348, Unknown=3, NotChecked=38, Total=462 [2023-02-17 06:06:00,501 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:06:02,185 INFO L93 Difference]: Finished difference Result 211 states and 256 transitions. [2023-02-17 06:06:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 06:06:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 06:06:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:06:02,186 INFO L225 Difference]: With dead ends: 211 [2023-02-17 06:06:02,186 INFO L226 Difference]: Without dead ends: 176 [2023-02-17 06:06:02,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=619, Unknown=4, NotChecked=52, Total=812 [2023-02-17 06:06:02,187 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 287 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 31 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-17 06:06:02,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 479 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 364 Invalid, 6 Unknown, 136 Unchecked, 1.3s Time] [2023-02-17 06:06:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-02-17 06:06:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2023-02-17 06:06:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 100 states have (on average 1.32) internal successors, (132), 105 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 132 transitions. [2023-02-17 06:06:02,209 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 132 transitions. Word has length 25 [2023-02-17 06:06:02,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:06:02,209 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 132 transitions. [2023-02-17 06:06:02,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 132 transitions. [2023-02-17 06:06:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 06:06:02,213 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:06:02,214 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:06:02,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 06:06:02,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:06:02,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:06:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:06:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1220504085, now seen corresponding path program 1 times [2023-02-17 06:06:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:06:02,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056730452] [2023-02-17 06:06:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:06:02,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:06:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:06:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-17 06:06:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:06:02,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056730452] [2023-02-17 06:06:02,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056730452] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:06:02,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:06:02,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 06:06:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684280343] [2023-02-17 06:06:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:06:02,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 06:06:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:06:02,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 06:06:02,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 06:06:02,544 INFO L87 Difference]: Start difference. First operand 106 states and 132 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:06:02,631 INFO L93 Difference]: Finished difference Result 155 states and 193 transitions. [2023-02-17 06:06:02,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:06:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-17 06:06:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:06:02,633 INFO L225 Difference]: With dead ends: 155 [2023-02-17 06:06:02,633 INFO L226 Difference]: Without dead ends: 117 [2023-02-17 06:06:02,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-17 06:06:02,649 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 7 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:06:02,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 180 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:06:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-17 06:06:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 110. [2023-02-17 06:06:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 104 states have (on average 1.3076923076923077) internal successors, (136), 109 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 136 transitions. [2023-02-17 06:06:02,670 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 136 transitions. Word has length 25 [2023-02-17 06:06:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:06:02,671 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 136 transitions. [2023-02-17 06:06:02,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:06:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 136 transitions. [2023-02-17 06:06:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 06:06:02,672 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:06:02,672 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:06:02,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 06:06:02,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-17 06:06:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:06:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 836449433, now seen corresponding path program 1 times [2023-02-17 06:06:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:06:02,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492884171] [2023-02-17 06:06:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:06:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:06:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:06:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:06:03,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:06:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492884171] [2023-02-17 06:06:03,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492884171] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:06:03,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751499967] [2023-02-17 06:06:03,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:06:03,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:06:03,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:06:03,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:06:03,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 06:06:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:06:03,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-17 06:06:03,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:06:03,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-17 06:06:03,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:06:03,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-17 06:06:03,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-17 06:06:03,595 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-17 06:06:03,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-02-17 06:06:03,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 06:06:03,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2023-02-17 06:06:03,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-17 06:06:03,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-17 06:06:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:06:03,682 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 148 [2023-02-17 06:06:03,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2023-02-17 06:06:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:06:03,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 06:06:03,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 56 [2023-02-17 06:06:03,721 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 66 [2023-02-17 06:06:03,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-02-17 06:06:03,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 144 [2023-02-17 06:06:03,802 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 215 treesize of output 219 [2023-02-17 06:06:03,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 140 [2023-02-17 06:06:03,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:03,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 177 [2023-02-17 06:06:04,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 121 [2023-02-17 06:06:04,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 93 [2023-02-17 06:06:04,041 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-17 06:06:04,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2023-02-17 06:06:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:06:04,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:06:04,285 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 51 [2023-02-17 06:06:04,289 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 89 [2023-02-17 06:06:04,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2023-02-17 06:06:04,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 51 [2023-02-17 06:06:04,324 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 89 [2023-02-17 06:06:04,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2023-02-17 06:06:04,561 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 392 treesize of output 369 [2023-02-17 06:06:04,565 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 452 treesize of output 373 [2023-02-17 06:06:04,574 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 575 treesize of output 434 [2023-02-17 06:06:04,593 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 06:06:04,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1095 treesize of output 1046 [2023-02-17 06:06:04,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1030 treesize of output 1026 [2023-02-17 06:06:04,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1026 treesize of output 1022 [2023-02-17 06:06:04,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1022 treesize of output 1020 [2023-02-17 06:06:04,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1020 treesize of output 1012 [2023-02-17 06:06:04,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1012 treesize of output 1008 [2023-02-17 06:06:04,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1008 treesize of output 1006 [2023-02-17 06:06:04,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1006 treesize of output 1002 [2023-02-17 06:06:04,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1002 treesize of output 1000 [2023-02-17 06:06:04,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1000 treesize of output 996 [2023-02-17 06:06:04,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 996 treesize of output 992 [2023-02-17 06:06:04,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 992 treesize of output 990 [2023-02-17 06:06:04,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 990 treesize of output 988 [2023-02-17 06:06:04,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 988 treesize of output 984 [2023-02-17 06:06:04,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 984 treesize of output 982 [2023-02-17 06:06:04,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 982 treesize of output 974 [2023-02-17 06:06:04,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 974 treesize of output 970 [2023-02-17 06:06:04,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 970 treesize of output 962 [2023-02-17 06:06:04,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 962 treesize of output 958 [2023-02-17 06:06:04,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 958 treesize of output 946 [2023-02-17 06:06:04,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 946 treesize of output 922