./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 e8d55036 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-?-e8d5503-m [2023-02-15 19:40:06,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:40:06,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:40:06,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:40:06,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:40:06,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:40:06,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:40:06,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:40:06,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:40:06,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:40:06,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:40:06,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:40:06,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:40:06,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:40:06,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:40:06,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:40:06,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:40:06,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:40:06,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:40:06,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:40:06,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:40:06,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:40:06,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:40:06,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:40:06,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:40:06,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:40:06,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:40:06,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:40:06,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:40:06,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:40:06,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:40:06,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:40:06,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:40:06,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:40:06,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:40:06,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:40:06,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:40:06,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:40:06,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:40:06,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:40:06,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:40:06,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:40:06,627 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:40:06,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:40:06,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:40:06,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:40:06,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:40:06,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:40:06,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:40:06,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:40:06,630 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:40:06,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:40:06,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:40:06,632 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:40:06,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:40:06,632 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:40:06,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:40:06,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:40:06,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:40:06,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:40:06,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:40:06,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:40:06,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:40:06,634 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:40:06,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:40:06,634 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:40:06,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618946a6e113450d0f3efa55a455801e1c2225c3ba6f88e87a9e8ad02019b85f [2023-02-15 19:40:06,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:40:06,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:40:06,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:40:06,874 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:40:06,874 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:40:06,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-sorted-2.i [2023-02-15 19:40:07,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:40:07,928 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:40:07,928 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-sorted-2.i [2023-02-15 19:40:07,939 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/232bfcf06/b5bc0213ed324ba38cde60616cc4c8b7/FLAG3c10b575d [2023-02-15 19:40:07,950 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/232bfcf06/b5bc0213ed324ba38cde60616cc4c8b7 [2023-02-15 19:40:07,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:40:07,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:40:07,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:40:07,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:40:07,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:40:07,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:40:07" (1/1) ... [2023-02-15 19:40:07,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1670a591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:07, skipping insertion in model container [2023-02-15 19:40:07,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:40:07" (1/1) ... [2023-02-15 19:40:07,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:40:08,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:40:08,227 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] [2023-02-15 19:40:08,230 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] [2023-02-15 19:40:08,231 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] [2023-02-15 19:40:08,233 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] [2023-02-15 19:40:08,234 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] [2023-02-15 19:40:08,234 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] [2023-02-15 19:40:08,235 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] [2023-02-15 19:40:08,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:40:08,242 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:40:08,264 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] [2023-02-15 19:40:08,265 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] [2023-02-15 19:40:08,266 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] [2023-02-15 19:40:08,268 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] [2023-02-15 19:40:08,268 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] [2023-02-15 19:40:08,269 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] [2023-02-15 19:40:08,269 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] [2023-02-15 19:40:08,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:40:08,286 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:40:08,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08 WrapperNode [2023-02-15 19:40:08,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:40:08,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:40:08,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:40:08,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:40:08,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,320 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 196 [2023-02-15 19:40:08,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:40:08,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:40:08,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:40:08,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:40:08,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:40:08,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:40:08,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:40:08,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:40:08,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (1/1) ... [2023-02-15 19:40:08,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:40:08,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:08,384 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) [2023-02-15 19:40:08,407 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 [2023-02-15 19:40:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:40:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:40:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:40:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:40:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 19:40:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 19:40:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 19:40:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:40:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:40:08,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:40:08,548 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:40:08,550 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:40:08,745 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:40:08,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:40:08,750 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2023-02-15 19:40:08,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:40:08 BoogieIcfgContainer [2023-02-15 19:40:08,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:40:08,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:40:08,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:40:08,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:40:08,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:40:07" (1/3) ... [2023-02-15 19:40:08,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bd97f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:40:08, skipping insertion in model container [2023-02-15 19:40:08,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:40:08" (2/3) ... [2023-02-15 19:40:08,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bd97f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:40:08, skipping insertion in model container [2023-02-15 19:40:08,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:40:08" (3/3) ... [2023-02-15 19:40:08,757 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2023-02-15 19:40:08,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:40:08,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-15 19:40:08,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:40:08,813 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;@3cf7b35a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:40:08,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-15 19:40:08,817 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) [2023-02-15 19:40:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 19:40:08,820 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:08,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 19:40:08,821 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)] === [2023-02-15 19:40:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash 890153286, now seen corresponding path program 1 times [2023-02-15 19:40:08,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:08,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715658531] [2023-02-15 19:40:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:08,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:08,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715658531] [2023-02-15 19:40:08,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715658531] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:08,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:08,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:40:08,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816929218] [2023-02-15 19:40:08,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:08,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:40:08,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:08,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:40:08,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:40:09,001 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) [2023-02-15 19:40:09,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:09,016 INFO L93 Difference]: Finished difference Result 118 states and 190 transitions. [2023-02-15 19:40:09,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:40:09,018 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 [2023-02-15 19:40:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:09,023 INFO L225 Difference]: With dead ends: 118 [2023-02-15 19:40:09,023 INFO L226 Difference]: Without dead ends: 56 [2023-02-15 19:40:09,025 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 [2023-02-15 19:40:09,027 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 [2023-02-15 19:40:09,028 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] [2023-02-15 19:40:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-02-15 19:40:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-02-15 19:40:09,060 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) [2023-02-15 19:40:09,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2023-02-15 19:40:09,062 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 6 [2023-02-15 19:40:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:09,062 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2023-02-15 19:40:09,062 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) [2023-02-15 19:40:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2023-02-15 19:40:09,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 19:40:09,063 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:09,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:09,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 19:40:09,063 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)] === [2023-02-15 19:40:09,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:09,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1806859191, now seen corresponding path program 1 times [2023-02-15 19:40:09,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:09,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495269696] [2023-02-15 19:40:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:09,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:09,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:09,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495269696] [2023-02-15 19:40:09,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495269696] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:09,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:09,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 19:40:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732474279] [2023-02-15 19:40:09,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:09,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 19:40:09,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:09,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 19:40:09,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 19:40:09,118 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) [2023-02-15 19:40:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:09,144 INFO L93 Difference]: Finished difference Result 115 states and 138 transitions. [2023-02-15 19:40:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 19:40:09,144 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 [2023-02-15 19:40:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:09,149 INFO L225 Difference]: With dead ends: 115 [2023-02-15 19:40:09,149 INFO L226 Difference]: Without dead ends: 61 [2023-02-15 19:40:09,150 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 [2023-02-15 19:40:09,150 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 [2023-02-15 19:40:09,151 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] [2023-02-15 19:40:09,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-15 19:40:09,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2023-02-15 19:40:09,160 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) [2023-02-15 19:40:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2023-02-15 19:40:09,161 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 7 [2023-02-15 19:40:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:09,162 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2023-02-15 19:40:09,162 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) [2023-02-15 19:40:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-02-15 19:40:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 19:40:09,162 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:09,163 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:09,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 19:40:09,163 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)] === [2023-02-15 19:40:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 443319948, now seen corresponding path program 1 times [2023-02-15 19:40:09,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:09,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393729405] [2023-02-15 19:40:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:09,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 19:40:09,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:09,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393729405] [2023-02-15 19:40:09,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393729405] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:09,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:09,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 19:40:09,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770600074] [2023-02-15 19:40:09,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:09,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 19:40:09,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:09,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 19:40:09,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:40:09,249 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) [2023-02-15 19:40:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:09,310 INFO L93 Difference]: Finished difference Result 99 states and 117 transitions. [2023-02-15 19:40:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 19:40:09,311 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 [2023-02-15 19:40:09,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:09,312 INFO L225 Difference]: With dead ends: 99 [2023-02-15 19:40:09,312 INFO L226 Difference]: Without dead ends: 97 [2023-02-15 19:40:09,312 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 [2023-02-15 19:40:09,313 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 [2023-02-15 19:40:09,314 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] [2023-02-15 19:40:09,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-15 19:40:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2023-02-15 19:40:09,320 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) [2023-02-15 19:40:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2023-02-15 19:40:09,321 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2023-02-15 19:40:09,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:09,321 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2023-02-15 19:40:09,321 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) [2023-02-15 19:40:09,321 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2023-02-15 19:40:09,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 19:40:09,322 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:09,322 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:09,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 19:40:09,322 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)] === [2023-02-15 19:40:09,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2064961448, now seen corresponding path program 1 times [2023-02-15 19:40:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:09,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307627422] [2023-02-15 19:40:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:10,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:10,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307627422] [2023-02-15 19:40:10,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307627422] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:10,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464822575] [2023-02-15 19:40:10,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:10,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:10,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:10,091 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) [2023-02-15 19:40:10,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 19:40:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:10,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 19:40:10,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:10,201 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 [2023-02-15 19:40:10,205 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 [2023-02-15 19:40:10,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:10,253 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 [2023-02-15 19:40:10,263 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:10,264 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 22 [2023-02-15 19:40:10,272 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 7 treesize of output 3 [2023-02-15 19:40:10,283 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:10,283 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 11 [2023-02-15 19:40:10,317 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 16 treesize of output 18 [2023-02-15 19:40:10,376 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 [2023-02-15 19:40:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:10,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:10,441 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_139 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_139) |c_ULTIMATE.start_main_~head~0#1.base|) (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4)) 0)) is different from false [2023-02-15 19:40:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:10,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464822575] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:10,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:10,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2023-02-15 19:40:10,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694935325] [2023-02-15 19:40:10,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 19:40:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:10,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 19:40:10,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=205, Unknown=1, NotChecked=28, Total=272 [2023-02-15 19:40:10,491 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) [2023-02-15 19:40:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:11,859 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2023-02-15 19:40:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 19:40:11,860 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 [2023-02-15 19:40:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:11,861 INFO L225 Difference]: With dead ends: 189 [2023-02-15 19:40:11,861 INFO L226 Difference]: Without dead ends: 133 [2023-02-15 19:40:11,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=207, Invalid=852, Unknown=1, NotChecked=62, Total=1122 [2023-02-15 19:40:11,863 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 166 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 49 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:11,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 754 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 475 Invalid, 8 Unknown, 70 Unchecked, 0.6s Time] [2023-02-15 19:40:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-15 19:40:11,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 80. [2023-02-15 19:40:11,872 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) [2023-02-15 19:40:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 99 transitions. [2023-02-15 19:40:11,872 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 99 transitions. Word has length 18 [2023-02-15 19:40:11,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:11,873 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 99 transitions. [2023-02-15 19:40:11,873 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) [2023-02-15 19:40:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 99 transitions. [2023-02-15 19:40:11,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 19:40:11,874 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:11,874 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] [2023-02-15 19:40:11,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 19:40:12,079 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 [2023-02-15 19:40:12,079 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)] === [2023-02-15 19:40:12,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:12,080 INFO L85 PathProgramCache]: Analyzing trace with hash -644381054, now seen corresponding path program 1 times [2023-02-15 19:40:12,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661579540] [2023-02-15 19:40:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:12,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:12,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:12,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:12,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661579540] [2023-02-15 19:40:12,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661579540] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:12,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761010621] [2023-02-15 19:40:12,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:12,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:12,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:12,416 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) [2023-02-15 19:40:12,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 19:40:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:12,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-15 19:40:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:12,501 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 [2023-02-15 19:40:12,523 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 [2023-02-15 19:40:12,532 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:12,533 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 20 [2023-02-15 19:40:12,537 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 [2023-02-15 19:40:12,545 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 [2023-02-15 19:40:12,554 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:12,554 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 20 [2023-02-15 19:40:12,561 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 [2023-02-15 19:40:12,567 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:12,567 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 11 [2023-02-15 19:40:12,609 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 19:40:12,609 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 45 [2023-02-15 19:40:12,612 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 18 treesize of output 20 [2023-02-15 19:40:12,618 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 19 treesize of output 11 [2023-02-15 19:40:12,731 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 [2023-02-15 19:40:12,733 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 27 treesize of output 15 [2023-02-15 19:40:12,749 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 [2023-02-15 19:40:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:12,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:12,798 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 69 treesize of output 49 [2023-02-15 19:40:12,851 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:12,851 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 37 treesize of output 38 [2023-02-15 19:40:12,855 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:12,856 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 41 treesize of output 42 [2023-02-15 19:40:12,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:12,862 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 64 treesize of output 47 [2023-02-15 19:40:12,865 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 29 treesize of output 27 [2023-02-15 19:40:12,872 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:12,873 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 48 treesize of output 51 [2023-02-15 19:40:12,879 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 35 treesize of output 33 [2023-02-15 19:40:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:12,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761010621] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:12,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:12,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2023-02-15 19:40:12,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586880442] [2023-02-15 19:40:12,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:12,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 19:40:12,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 19:40:12,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=198, Unknown=3, NotChecked=0, Total=240 [2023-02-15 19:40:12,940 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) [2023-02-15 19:40:13,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:13,209 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2023-02-15 19:40:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 19:40:13,210 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 [2023-02-15 19:40:13,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:13,211 INFO L225 Difference]: With dead ends: 118 [2023-02-15 19:40:13,211 INFO L226 Difference]: Without dead ends: 116 [2023-02-15 19:40:13,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=338, Unknown=3, NotChecked=0, Total=420 [2023-02-15 19:40:13,211 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:13,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 449 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 19:40:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-02-15 19:40:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 92. [2023-02-15 19:40:13,228 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) [2023-02-15 19:40:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2023-02-15 19:40:13,230 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 21 [2023-02-15 19:40:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:13,230 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2023-02-15 19:40:13,231 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) [2023-02-15 19:40:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2023-02-15 19:40:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 19:40:13,232 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:13,232 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] [2023-02-15 19:40:13,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 19:40:13,450 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 [2023-02-15 19:40:13,451 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)] === [2023-02-15 19:40:13,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2029850711, now seen corresponding path program 1 times [2023-02-15 19:40:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228775198] [2023-02-15 19:40:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:13,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:14,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:14,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228775198] [2023-02-15 19:40:14,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228775198] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:14,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163516943] [2023-02-15 19:40:14,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:14,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:14,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:14,163 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) [2023-02-15 19:40:14,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 19:40:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:14,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-15 19:40:14,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:14,247 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 [2023-02-15 19:40:14,264 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 [2023-02-15 19:40:14,272 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:14,273 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 20 [2023-02-15 19:40:14,275 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 [2023-02-15 19:40:14,288 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:40:14,288 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 21 [2023-02-15 19:40:14,294 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 [2023-02-15 19:40:14,297 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 [2023-02-15 19:40:14,332 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 [2023-02-15 19:40:14,336 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 [2023-02-15 19:40:14,341 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 [2023-02-15 19:40:14,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:14,411 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2023-02-15 19:40:14,412 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 86 treesize of output 79 [2023-02-15 19:40:14,416 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 30 treesize of output 28 [2023-02-15 19:40:14,428 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2023-02-15 19:40:14,429 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 2 case distinctions, treesize of input 25 treesize of output 42 [2023-02-15 19:40:14,433 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 [2023-02-15 19:40:14,439 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 34 treesize of output 32 [2023-02-15 19:40:14,455 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2023-02-15 19:40:14,456 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 1 case distinctions, treesize of input 18 treesize of output 28 [2023-02-15 19:40:14,470 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-15 19:40:14,470 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 20 treesize of output 22 [2023-02-15 19:40:14,506 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 [2023-02-15 19:40:14,510 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 45 treesize of output 41 [2023-02-15 19:40:14,514 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 25 treesize of output 30 [2023-02-15 19:40:14,622 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 72 treesize of output 52 [2023-02-15 19:40:14,625 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:14,626 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 41 treesize of output 17 [2023-02-15 19:40:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:14,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:14,682 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_369 (Array Int Int)) (v_ArrVal_371 (Array Int Int)) (v_ArrVal_370 (Array Int Int))) (= 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_371) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_369) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_370) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))) is different from false [2023-02-15 19:40:14,742 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,743 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 [2023-02-15 19:40:14,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,750 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 91 [2023-02-15 19:40:14,755 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,755 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 69 treesize of output 69 [2023-02-15 19:40:14,759 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 [2023-02-15 19:40:14,778 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 [2023-02-15 19:40:14,785 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 [2023-02-15 19:40:14,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,909 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 101 treesize of output 94 [2023-02-15 19:40:14,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,914 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 113 treesize of output 114 [2023-02-15 19:40:14,920 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,921 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 216 treesize of output 167 [2023-02-15 19:40:14,924 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 149 treesize of output 145 [2023-02-15 19:40:14,929 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 145 treesize of output 141 [2023-02-15 19:40:14,939 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 141 treesize of output 139 [2023-02-15 19:40:14,960 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,960 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 248 treesize of output 247 [2023-02-15 19:40:14,983 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:14,984 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 231 treesize of output 234 [2023-02-15 19:40:14,990 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 225 treesize of output 217 [2023-02-15 19:40:14,996 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 217 treesize of output 215 [2023-02-15 19:40:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:40:15,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163516943] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:15,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:15,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2023-02-15 19:40:15,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167719989] [2023-02-15 19:40:15,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:15,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 19:40:15,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 19:40:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=348, Unknown=3, NotChecked=38, Total=462 [2023-02-15 19:40:15,729 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) [2023-02-15 19:40:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:16,511 INFO L93 Difference]: Finished difference Result 211 states and 256 transitions. [2023-02-15 19:40:16,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 19:40:16,511 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 [2023-02-15 19:40:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:16,512 INFO L225 Difference]: With dead ends: 211 [2023-02-15 19:40:16,512 INFO L226 Difference]: Without dead ends: 176 [2023-02-15 19:40:16,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=620, Unknown=3, NotChecked=52, Total=812 [2023-02-15 19:40:16,513 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 244 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 31 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:16,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 603 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 428 Invalid, 5 Unknown, 150 Unchecked, 0.4s Time] [2023-02-15 19:40:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-02-15 19:40:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2023-02-15 19:40:16,523 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) [2023-02-15 19:40:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 132 transitions. [2023-02-15 19:40:16,523 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 132 transitions. Word has length 25 [2023-02-15 19:40:16,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:16,524 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 132 transitions. [2023-02-15 19:40:16,524 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) [2023-02-15 19:40:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 132 transitions. [2023-02-15 19:40:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 19:40:16,525 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:16,525 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] [2023-02-15 19:40:16,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 19:40:16,729 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 [2023-02-15 19:40:16,730 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)] === [2023-02-15 19:40:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1220504085, now seen corresponding path program 1 times [2023-02-15 19:40:16,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:16,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616615143] [2023-02-15 19:40:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:16,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 19:40:16,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:16,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616615143] [2023-02-15 19:40:16,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616615143] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:40:16,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:40:16,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:40:16,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868432093] [2023-02-15 19:40:16,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:40:16,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:40:16,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:40:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:40:16,801 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) [2023-02-15 19:40:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:16,862 INFO L93 Difference]: Finished difference Result 155 states and 193 transitions. [2023-02-15 19:40:16,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:40:16,877 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 [2023-02-15 19:40:16,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:16,877 INFO L225 Difference]: With dead ends: 155 [2023-02-15 19:40:16,877 INFO L226 Difference]: Without dead ends: 117 [2023-02-15 19:40:16,878 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 [2023-02-15 19:40:16,878 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:16,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 146 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:40:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-15 19:40:16,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 110. [2023-02-15 19:40:16,887 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) [2023-02-15 19:40:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 136 transitions. [2023-02-15 19:40:16,887 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 136 transitions. Word has length 25 [2023-02-15 19:40:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:16,888 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 136 transitions. [2023-02-15 19:40:16,888 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) [2023-02-15 19:40:16,888 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 136 transitions. [2023-02-15 19:40:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 19:40:16,888 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:16,891 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] [2023-02-15 19:40:16,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 19:40:16,892 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)] === [2023-02-15 19:40:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash 836449433, now seen corresponding path program 1 times [2023-02-15 19:40:16,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:16,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862974561] [2023-02-15 19:40:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:16,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:17,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862974561] [2023-02-15 19:40:17,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862974561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099469208] [2023-02-15 19:40:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:17,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:17,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:17,427 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) [2023-02-15 19:40:17,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 19:40:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:17,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-15 19:40:17,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:17,515 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 [2023-02-15 19:40:17,531 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 [2023-02-15 19:40:17,539 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:17,539 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 20 [2023-02-15 19:40:17,546 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 [2023-02-15 19:40:17,559 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:40:17,560 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 21 [2023-02-15 19:40:17,566 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 [2023-02-15 19:40:17,569 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 [2023-02-15 19:40:17,589 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 [2023-02-15 19:40:17,593 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 [2023-02-15 19:40:17,602 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 [2023-02-15 19:40:17,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:17,658 INFO L321 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2023-02-15 19:40:17,659 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 79 treesize of output 74 [2023-02-15 19:40:17,663 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 36 treesize of output 34 [2023-02-15 19:40:17,671 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2023-02-15 19:40:17,672 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 1 case distinctions, treesize of input 20 treesize of output 30 [2023-02-15 19:40:17,675 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 [2023-02-15 19:40:17,693 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2023-02-15 19:40:17,694 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 2 case distinctions, treesize of input 21 treesize of output 37 [2023-02-15 19:40:17,699 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 [2023-02-15 19:40:17,714 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-15 19:40:17,715 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 20 treesize of output 22 [2023-02-15 19:40:17,759 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 14 treesize of output 16 [2023-02-15 19:40:17,764 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 36 treesize of output 34 [2023-02-15 19:40:17,768 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 20 treesize of output 22 [2023-02-15 19:40:17,931 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 29 treesize of output 17 [2023-02-15 19:40:17,934 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 15 treesize of output 7 [2023-02-15 19:40:17,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:17,961 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:17,961 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 17 treesize of output 10 [2023-02-15 19:40:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:17,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:18,021 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_573 (Array Int Int)) (v_ArrVal_575 (Array Int Int)) (v_ArrVal_574 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_575) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_573) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_574) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)) 1)) is different from false [2023-02-15 19:40:18,067 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,067 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 [2023-02-15 19:40:18,074 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,074 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 85 [2023-02-15 19:40:18,078 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 [2023-02-15 19:40:18,177 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,178 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 95 treesize of output 96 [2023-02-15 19:40:18,186 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,186 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 87 treesize of output 80 [2023-02-15 19:40:18,195 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,195 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 210 treesize of output 161 [2023-02-15 19:40:18,199 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 143 treesize of output 139 [2023-02-15 19:40:18,203 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 139 treesize of output 137 [2023-02-15 19:40:18,207 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 137 treesize of output 135 [2023-02-15 19:40:18,214 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 135 treesize of output 131 [2023-02-15 19:40:18,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:18,225 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 239 [2023-02-15 19:40:18,232 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 223 treesize of output 219 [2023-02-15 19:40:18,236 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 219 treesize of output 211 [2023-02-15 19:40:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 19:40:18,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099469208] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:18,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:18,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 22 [2023-02-15 19:40:18,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528691163] [2023-02-15 19:40:18,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:18,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 19:40:18,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:18,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 19:40:18,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=350, Unknown=2, NotChecked=38, Total=462 [2023-02-15 19:40:18,655 INFO L87 Difference]: Start difference. First operand 110 states and 136 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 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) [2023-02-15 19:40:21,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:40:23,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-15 19:40:24,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:24,315 INFO L93 Difference]: Finished difference Result 177 states and 215 transitions. [2023-02-15 19:40:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 19:40:24,315 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 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 [2023-02-15 19:40:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:24,316 INFO L225 Difference]: With dead ends: 177 [2023-02-15 19:40:24,316 INFO L226 Difference]: Without dead ends: 175 [2023-02-15 19:40:24,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=768, Unknown=2, NotChecked=58, Total=992 [2023-02-15 19:40:24,317 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 176 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:24,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 650 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 533 Invalid, 2 Unknown, 97 Unchecked, 5.3s Time] [2023-02-15 19:40:24,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-02-15 19:40:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 103. [2023-02-15 19:40:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 102 states have internal predecessors, (128), 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) [2023-02-15 19:40:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2023-02-15 19:40:24,331 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 25 [2023-02-15 19:40:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:24,331 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2023-02-15 19:40:24,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 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) [2023-02-15 19:40:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2023-02-15 19:40:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 19:40:24,332 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:24,332 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, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:24,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 19:40:24,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:24,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:40:24,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2046348832, now seen corresponding path program 1 times [2023-02-15 19:40:24,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:24,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168992872] [2023-02-15 19:40:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:24,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:24,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168992872] [2023-02-15 19:40:24,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168992872] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:24,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95859209] [2023-02-15 19:40:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:24,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:24,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:24,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:40:24,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 19:40:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:25,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-15 19:40:25,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:25,028 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 [2023-02-15 19:40:25,034 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 [2023-02-15 19:40:25,062 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:25,062 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 11 [2023-02-15 19:40:25,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:25,066 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 [2023-02-15 19:40:25,068 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 16 treesize of output 18 [2023-02-15 19:40:25,089 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 16 treesize of output 18 [2023-02-15 19:40:25,173 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:25,175 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 20 treesize of output 16 [2023-02-15 19:40:25,186 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 19:40:25,186 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 22 [2023-02-15 19:40:25,190 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 [2023-02-15 19:40:25,196 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:25,197 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 20 treesize of output 16 [2023-02-15 19:40:25,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:25,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:25,231 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 25 [2023-02-15 19:40:25,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:25,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 24 [2023-02-15 19:40:25,263 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 [2023-02-15 19:40:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:25,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:25,317 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 41 treesize of output 37 [2023-02-15 19:40:25,321 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 37 treesize of output 33 [2023-02-15 19:40:25,334 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_main_~tmp~0#1.base_9| Int) (v_ArrVal_718 Int) (v_ArrVal_720 (Array Int Int))) (or (= |c_ULTIMATE.start_main_~x~0#1.base| |v_ULTIMATE.start_main_~tmp~0#1.base_9|) (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_main_~tmp~0#1.base_9| v_ArrVal_720))) (store .cse0 |c_ULTIMATE.start_main_~x~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_718))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse1) 0))) (or (forall ((|v_ULTIMATE.start_main_~tmp~0#1.base_9| Int) (v_ArrVal_718 Int) (v_ArrVal_720 (Array Int Int))) (= (select (select (let ((.cse2 (store |c_#memory_int| |v_ULTIMATE.start_main_~tmp~0#1.base_9| v_ArrVal_720))) (store .cse2 |c_ULTIMATE.start_main_~x~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_718))) |c_ULTIMATE.start_main_~head~0#1.base|) .cse1) 0)) (= |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) is different from false [2023-02-15 19:40:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:25,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95859209] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:40:25,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:40:25,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 22 [2023-02-15 19:40:25,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787721959] [2023-02-15 19:40:25,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:40:25,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 19:40:25,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:40:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 19:40:25,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=324, Unknown=6, NotChecked=38, Total=462 [2023-02-15 19:40:25,526 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 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) [2023-02-15 19:40:25,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:40:25,888 INFO L93 Difference]: Finished difference Result 222 states and 269 transitions. [2023-02-15 19:40:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 19:40:25,888 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 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) Word has length 27 [2023-02-15 19:40:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:40:25,894 INFO L225 Difference]: With dead ends: 222 [2023-02-15 19:40:25,894 INFO L226 Difference]: Without dead ends: 157 [2023-02-15 19:40:25,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=480, Unknown=6, NotChecked=48, Total=702 [2023-02-15 19:40:25,897 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 296 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:40:25,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 535 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 323 Invalid, 0 Unknown, 104 Unchecked, 0.2s Time] [2023-02-15 19:40:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-02-15 19:40:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2023-02-15 19:40:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 124 states have internal predecessors, (153), 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) [2023-02-15 19:40:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2023-02-15 19:40:25,944 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 27 [2023-02-15 19:40:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:40:25,944 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2023-02-15 19:40:25,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 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) [2023-02-15 19:40:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2023-02-15 19:40:25,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 19:40:25,945 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:40:25,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:40:25,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 19:40:26,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:26,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:40:26,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:40:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash 485990957, now seen corresponding path program 1 times [2023-02-15 19:40:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:40:26,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564615974] [2023-02-15 19:40:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:40:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:26,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:40:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564615974] [2023-02-15 19:40:26,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564615974] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:40:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467681882] [2023-02-15 19:40:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:40:26,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:40:26,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:40:26,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 19:40:26,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 19:40:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:40:26,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 54 conjunts are in the unsatisfiable core [2023-02-15 19:40:26,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:40:26,524 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 [2023-02-15 19:40:26,551 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-02-15 19:40:26,551 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 1 case distinctions, treesize of input 27 treesize of output 19 [2023-02-15 19:40:26,572 INFO L321 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-02-15 19:40:26,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-02-15 19:40:26,592 INFO L321 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-02-15 19:40:26,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-02-15 19:40:26,598 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 8 treesize of output 7 [2023-02-15 19:40:26,608 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 8 treesize of output 7 [2023-02-15 19:40:26,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 79 [2023-02-15 19:40:26,646 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:26,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-15 19:40:26,657 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 0 case distinctions, treesize of input 45 treesize of output 30 [2023-02-15 19:40:26,661 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:40:26,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 19 treesize of output 3 [2023-02-15 19:40:26,679 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 [2023-02-15 19:40:26,686 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:40:26,686 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 11 [2023-02-15 19:40:26,737 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 19:40:26,738 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 60 [2023-02-15 19:40:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:40:26,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-02-15 19:40:26,902 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2023-02-15 19:40:26,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 58 [2023-02-15 19:40:26,908 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-02-15 19:40:26,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 26 [2023-02-15 19:40:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:40:26,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:40:28,968 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|)) (.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 4))) (and (forall ((v_ArrVal_808 Int) (v_ArrVal_807 Int)) (= (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse1 .cse2 v_ArrVal_808)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse3 .cse2 v_ArrVal_807)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0)) (forall ((v_ArrVal_808 Int) (v_ArrVal_807 Int)) (= (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse3 .cse2 v_ArrVal_807)))) (select (select .cse4 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse1 .cse2 v_ArrVal_808)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse4 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)))) is different from false [2023-02-15 19:40:29,051 INFO L321 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-02-15 19:40:29,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 351 treesize of output 326 [2023-02-15 19:40:29,641 INFO L321 Elim1Store]: treesize reduction 707, result has 46.1 percent of original size [2023-02-15 19:40:29,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 37 case distinctions, treesize of input 580582 treesize of output 543735 [2023-02-15 19:40:53,798 WARN L233 SmtUtils]: Spent 24.15s on a formula simplification. DAG size of input: 991 DAG size of output: 981 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:40:55,493 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:55,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 648032 treesize of output 576552 [2023-02-15 19:40:58,746 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:40:58,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 688794 treesize of output 673466 [2023-02-15 19:41:04,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:41:04,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 1305403 treesize of output 1274665 [2023-02-15 19:42:38,393 WARN L233 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 1586 DAG size of output: 1572 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:42:44,610 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 [2023-02-15 19:42:47,196 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:42:47,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:42:54,121 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:42:54,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:42:59,937 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:42:59,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:43:01,606 INFO L321 Elim1Store]: treesize reduction 8, result has 95.3 percent of original size [2023-02-15 19:43:01,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 347 treesize of output 473 [2023-02-15 19:43:03,164 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:43:03,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:43:24,458 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:43:24,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:43:30,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:43:30,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:43:33,277 INFO L321 Elim1Store]: treesize reduction 8, result has 95.3 percent of original size [2023-02-15 19:43:33,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 351 treesize of output 477 [2023-02-15 19:43:42,394 INFO L321 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2023-02-15 19:43:42,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 379 [2023-02-15 19:43:47,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:43:47,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:43:53,673 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:43:53,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:44:02,962 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:02,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:44:04,933 INFO L321 Elim1Store]: treesize reduction 8, result has 95.3 percent of original size [2023-02-15 19:44:04,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 351 treesize of output 477 [2023-02-15 19:44:18,874 INFO L321 Elim1Store]: treesize reduction 8, result has 95.3 percent of original size [2023-02-15 19:44:18,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 351 treesize of output 477 [2023-02-15 19:44:24,243 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:24,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:44:26,673 INFO L321 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2023-02-15 19:44:26,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 379 [2023-02-15 19:44:31,750 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:31,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427 [2023-02-15 19:44:41,432 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:44:41,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 341 treesize of output 427