./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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-rb-cnstr_1-1.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 6070ac475d5b3c3d5905eb0c203232134efabc1c427fcfbbf8cf82789693617b --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-13 23:30:56,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 23:30:56,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 23:30:56,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 23:30:56,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 23:30:56,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 23:30:56,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 23:30:56,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 23:30:56,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 23:30:56,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 23:30:56,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 23:30:56,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 23:30:56,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 23:30:56,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 23:30:56,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 23:30:56,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 23:30:56,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 23:30:56,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 23:30:56,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 23:30:56,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 23:30:56,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 23:30:56,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 23:30:56,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 23:30:56,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 23:30:56,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 23:30:56,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 23:30:56,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 23:30:56,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 23:30:56,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 23:30:56,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 23:30:56,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 23:30:56,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 23:30:56,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 23:30:56,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 23:30:56,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 23:30:56,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 23:30:56,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 23:30:56,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 23:30:56,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 23:30:56,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 23:30:56,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 23:30:56,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-13 23:30:56,851 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 23:30:56,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 23:30:56,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-13 23:30:56,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-13 23:30:56,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-13 23:30:56,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-13 23:30:56,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 23:30:56,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 23:30:56,853 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 23:30:56,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 23:30:56,854 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-13 23:30:56,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-13 23:30:56,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-13 23:30:56,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-13 23:30:56,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 23:30:56,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 23:30:56,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-13 23:30:56,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 23:30:56,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 23:30:56,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-13 23:30:56,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-13 23:30:56,858 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-13 23:30:56,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6070ac475d5b3c3d5905eb0c203232134efabc1c427fcfbbf8cf82789693617b [2023-02-13 23:30:57,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 23:30:57,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 23:30:57,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 23:30:57,104 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 23:30:57,104 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 23:30:57,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-02-13 23:30:58,120 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-13 23:30:58,262 INFO L351 CDTParser]: Found 1 translation units. [2023-02-13 23:30:58,262 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1-1.i [2023-02-13 23:30:58,271 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df68a89d9/1e51a48c72d140e2bf131995752fe130/FLAG76491c2a3 [2023-02-13 23:30:58,282 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df68a89d9/1e51a48c72d140e2bf131995752fe130 [2023-02-13 23:30:58,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 23:30:58,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-13 23:30:58,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 23:30:58,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 23:30:58,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 23:30:58,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d378539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58, skipping insertion in model container [2023-02-13 23:30:58,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 23:30:58,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 23:30:58,460 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-rb-cnstr_1-1.i[22480,22493] [2023-02-13 23:30:58,463 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-rb-cnstr_1-1.i[22552,22565] [2023-02-13 23:30:58,464 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-rb-cnstr_1-1.i[22704,22717] [2023-02-13 23:30:58,464 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-rb-cnstr_1-1.i[22778,22791] [2023-02-13 23:30:58,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 23:30:58,478 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 23:30:58,501 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-rb-cnstr_1-1.i[22480,22493] [2023-02-13 23:30:58,502 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-rb-cnstr_1-1.i[22552,22565] [2023-02-13 23:30:58,502 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-rb-cnstr_1-1.i[22704,22717] [2023-02-13 23:30:58,503 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-rb-cnstr_1-1.i[22778,22791] [2023-02-13 23:30:58,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 23:30:58,521 INFO L208 MainTranslator]: Completed translation [2023-02-13 23:30:58,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58 WrapperNode [2023-02-13 23:30:58,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 23:30:58,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 23:30:58,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 23:30:58,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 23:30:58,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,623 INFO L138 Inliner]: procedures = 119, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2023-02-13 23:30:58,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 23:30:58,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 23:30:58,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 23:30:58,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 23:30:58,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 23:30:58,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 23:30:58,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 23:30:58,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 23:30:58,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (1/1) ... [2023-02-13 23:30:58,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 23:30:58,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:30:58,701 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) [2023-02-13 23:30:58,713 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 [2023-02-13 23:30:58,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-13 23:30:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 23:30:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 23:30:58,792 INFO L235 CfgBuilder]: Building ICFG [2023-02-13 23:30:58,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 23:30:58,909 INFO L276 CfgBuilder]: Performing block encoding [2023-02-13 23:30:58,913 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 23:30:58,913 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2023-02-13 23:30:58,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 11:30:58 BoogieIcfgContainer [2023-02-13 23:30:58,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 23:30:58,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 23:30:58,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 23:30:58,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 23:30:58,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 11:30:58" (1/3) ... [2023-02-13 23:30:58,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1a5d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 11:30:58, skipping insertion in model container [2023-02-13 23:30:58,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:30:58" (2/3) ... [2023-02-13 23:30:58,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1a5d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 11:30:58, skipping insertion in model container [2023-02-13 23:30:58,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 11:30:58" (3/3) ... [2023-02-13 23:30:58,919 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-1.i [2023-02-13 23:30:58,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-13 23:30:58,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-13 23:30:58,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-13 23:30:58,979 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;@3b7b07a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-13 23:30:58,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-13 23:30:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 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) [2023-02-13 23:30:58,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-13 23:30:58,986 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:30:58,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-13 23:30:58,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:30:58,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:30:58,991 INFO L85 PathProgramCache]: Analyzing trace with hash 889968582, now seen corresponding path program 1 times [2023-02-13 23:30:58,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:30:58,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743858234] [2023-02-13 23:30:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:30:58,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:30:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:30:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:30:59,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:30:59,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743858234] [2023-02-13 23:30:59,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743858234] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 23:30:59,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 23:30:59,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-13 23:30:59,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013317622] [2023-02-13 23:30:59,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 23:30:59,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-13 23:30:59,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:30:59,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-13 23:30:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-13 23:30:59,191 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 32 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) 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) [2023-02-13 23:30:59,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:30:59,204 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2023-02-13 23:30:59,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-13 23:30:59,206 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 [2023-02-13 23:30:59,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:30:59,210 INFO L225 Difference]: With dead ends: 61 [2023-02-13 23:30:59,211 INFO L226 Difference]: Without dead ends: 27 [2023-02-13 23:30:59,213 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 [2023-02-13 23:30:59,218 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2023-02-13 23:30:59,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 23:30:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-13 23:30:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-13 23:30:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 26 states have internal predecessors, (30), 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) [2023-02-13 23:30:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-13 23:30:59,251 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2023-02-13 23:30:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:30:59,252 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-13 23:30:59,252 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) [2023-02-13 23:30:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-13 23:30:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-13 23:30:59,253 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:30:59,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:30:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-13 23:30:59,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:30:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:30:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1806853233, now seen corresponding path program 1 times [2023-02-13 23:30:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:30:59,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668012559] [2023-02-13 23:30:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:30:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:30:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:30:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:30:59,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:30:59,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668012559] [2023-02-13 23:30:59,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668012559] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 23:30:59,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 23:30:59,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-13 23:30:59,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063915506] [2023-02-13 23:30:59,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 23:30:59,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-13 23:30:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:30:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-13 23:30:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-13 23:30:59,367 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-02-13 23:30:59,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:30:59,404 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-02-13 23:30:59,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-13 23:30:59,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 [2023-02-13 23:30:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:30:59,405 INFO L225 Difference]: With dead ends: 30 [2023-02-13 23:30:59,405 INFO L226 Difference]: Without dead ends: 28 [2023-02-13 23:30:59,405 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 [2023-02-13 23:30:59,406 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 40 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-13 23:30:59,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 28 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 23:30:59,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-13 23:30:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2023-02-13 23:30:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 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) [2023-02-13 23:30:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-13 23:30:59,411 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 7 [2023-02-13 23:30:59,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:30:59,411 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-13 23:30:59,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2023-02-13 23:30:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-02-13 23:30:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-13 23:30:59,412 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:30:59,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:30:59,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-13 23:30:59,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:30:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:30:59,413 INFO L85 PathProgramCache]: Analyzing trace with hash -856511048, now seen corresponding path program 1 times [2023-02-13 23:30:59,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:30:59,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981830389] [2023-02-13 23:30:59,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:30:59,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:30:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:30:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:30:59,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:30:59,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981830389] [2023-02-13 23:30:59,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981830389] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 23:30:59,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 23:30:59,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-13 23:30:59,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998905378] [2023-02-13 23:30:59,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 23:30:59,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-13 23:30:59,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:30:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 23:30:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-13 23:30:59,727 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2023-02-13 23:30:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:30:59,823 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2023-02-13 23:30:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-13 23:30:59,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 10 [2023-02-13 23:30:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:30:59,827 INFO L225 Difference]: With dead ends: 50 [2023-02-13 23:30:59,827 INFO L226 Difference]: Without dead ends: 48 [2023-02-13 23:30:59,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-13 23:30:59,829 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-13 23:30:59,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 53 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-13 23:30:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-13 23:30:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2023-02-13 23:30:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 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) [2023-02-13 23:30:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-02-13 23:30:59,842 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 10 [2023-02-13 23:30:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:30:59,842 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-02-13 23:30:59,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2023-02-13 23:30:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-02-13 23:30:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-13 23:30:59,843 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:30:59,843 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:30:59,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-13 23:30:59,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:30:59,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:30:59,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1594081566, now seen corresponding path program 1 times [2023-02-13 23:30:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:30:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197615398] [2023-02-13 23:30:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:30:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:30:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:00,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:00,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197615398] [2023-02-13 23:31:00,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197615398] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 23:31:00,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325888926] [2023-02-13 23:31:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:31:00,313 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) [2023-02-13 23:31:00,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-13 23:31:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:00,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-13 23:31:00,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 23:31:00,444 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 [2023-02-13 23:31:00,462 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 [2023-02-13 23:31:00,526 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-13 23:31:00,529 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 [2023-02-13 23:31:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:00,541 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 [2023-02-13 23:31:00,546 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 [2023-02-13 23:31:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:00,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:00,589 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 19 treesize of output 23 [2023-02-13 23:31:00,604 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-02-13 23:31:00,605 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 16 treesize of output 18 [2023-02-13 23:31:00,656 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 [2023-02-13 23:31:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:00,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 23:31:00,749 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-13 23:31:00,752 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-02-13 23:31:00,752 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 2 case distinctions, treesize of input 24 treesize of output 1 [2023-02-13 23:31:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:00,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325888926] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 23:31:00,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 23:31:00,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-13 23:31:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239115842] [2023-02-13 23:31:00,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 23:31:00,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-13 23:31:00,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:31:00,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-13 23:31:00,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-02-13 23:31:00,755 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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) [2023-02-13 23:31:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:31:00,899 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-02-13 23:31:00,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-13 23:31:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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 13 [2023-02-13 23:31:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:31:00,900 INFO L225 Difference]: With dead ends: 38 [2023-02-13 23:31:00,900 INFO L226 Difference]: Without dead ends: 36 [2023-02-13 23:31:00,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-02-13 23:31:00,901 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 69 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-13 23:31:00,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 62 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-13 23:31:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-13 23:31:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 23. [2023-02-13 23:31:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 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) [2023-02-13 23:31:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-13 23:31:00,905 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2023-02-13 23:31:00,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:31:00,905 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-13 23:31:00,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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) [2023-02-13 23:31:00,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-13 23:31:00,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-13 23:31:00,906 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:31:00,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:31:00,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-13 23:31:01,115 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 [2023-02-13 23:31:01,116 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:31:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:31:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1689639521, now seen corresponding path program 1 times [2023-02-13 23:31:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:31:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763657944] [2023-02-13 23:31:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:31:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:01,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:01,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763657944] [2023-02-13 23:31:01,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763657944] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 23:31:01,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 23:31:01,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-13 23:31:01,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602689058] [2023-02-13 23:31:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 23:31:01,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-13 23:31:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:31:01,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 23:31:01,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-13 23:31:01,172 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-02-13 23:31:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:31:01,215 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-02-13 23:31:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-13 23:31:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2023-02-13 23:31:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:31:01,216 INFO L225 Difference]: With dead ends: 38 [2023-02-13 23:31:01,216 INFO L226 Difference]: Without dead ends: 26 [2023-02-13 23:31:01,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-13 23:31:01,217 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-13 23:31:01,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 23:31:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-13 23:31:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-02-13 23:31:01,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 24 states have internal predecessors, (28), 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) [2023-02-13 23:31:01,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-13 23:31:01,221 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2023-02-13 23:31:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:31:01,221 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-13 23:31:01,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2023-02-13 23:31:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-02-13 23:31:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-13 23:31:01,222 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:31:01,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:31:01,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-13 23:31:01,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:31:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:31:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2084817261, now seen corresponding path program 1 times [2023-02-13 23:31:01,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:31:01,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56617914] [2023-02-13 23:31:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:01,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:31:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:01,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:01,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56617914] [2023-02-13 23:31:01,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56617914] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 23:31:01,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529351161] [2023-02-13 23:31:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:01,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:01,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:31:01,311 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) [2023-02-13 23:31:01,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-13 23:31:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:01,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-13 23:31:01,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 23:31:01,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:01,408 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 16 treesize of output 17 [2023-02-13 23:31:01,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:01,413 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 16 treesize of output 17 [2023-02-13 23:31:01,470 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 [2023-02-13 23:31:01,473 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 [2023-02-13 23:31:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:01,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 23:31:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:01,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529351161] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 23:31:01,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 23:31:01,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-02-13 23:31:01,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203172355] [2023-02-13 23:31:01,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 23:31:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-13 23:31:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:31:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-13 23:31:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-13 23:31:01,508 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2023-02-13 23:31:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:31:01,574 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2023-02-13 23:31:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-13 23:31:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 17 [2023-02-13 23:31:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:31:01,575 INFO L225 Difference]: With dead ends: 49 [2023-02-13 23:31:01,575 INFO L226 Difference]: Without dead ends: 27 [2023-02-13 23:31:01,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-13 23:31:01,575 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-13 23:31:01,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 23:31:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-13 23:31:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-13 23:31:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 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) [2023-02-13 23:31:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-13 23:31:01,579 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2023-02-13 23:31:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:31:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-13 23:31:01,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2023-02-13 23:31:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-13 23:31:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-13 23:31:01,580 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:31:01,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:31:01,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-13 23:31:01,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-13 23:31:01,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:31:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:31:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1088473273, now seen corresponding path program 1 times [2023-02-13 23:31:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:31:01,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53418682] [2023-02-13 23:31:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:01,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:31:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53418682] [2023-02-13 23:31:02,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53418682] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 23:31:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864819629] [2023-02-13 23:31:02,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:02,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:02,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:31:02,111 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) [2023-02-13 23:31:02,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-13 23:31:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:02,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-13 23:31:02,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 23:31:02,205 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 [2023-02-13 23:31:02,237 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-13 23:31:02,238 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 [2023-02-13 23:31:02,244 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 [2023-02-13 23:31:02,246 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 [2023-02-13 23:31:02,251 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 [2023-02-13 23:31:02,254 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 [2023-02-13 23:31:02,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:02,294 INFO L321 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2023-02-13 23:31:02,294 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 2 case distinctions, treesize of input 47 treesize of output 48 [2023-02-13 23:31:02,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:02,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:02,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-13 23:31:02,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 11 [2023-02-13 23:31:02,316 INFO L321 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2023-02-13 23:31:02,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2023-02-13 23:31:02,417 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 [2023-02-13 23:31:02,451 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-13 23:31:02,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2023-02-13 23:31:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:02,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 23:31:02,478 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 40 treesize of output 41 [2023-02-13 23:31:02,529 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,530 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 64 treesize of output 65 [2023-02-13 23:31:02,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,534 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 56 treesize of output 49 [2023-02-13 23:31:02,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1524 treesize of output 1125 [2023-02-13 23:31:02,655 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,656 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 1043 treesize of output 979 [2023-02-13 23:31:02,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1093 treesize of output 919 [2023-02-13 23:31:02,781 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:02,782 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 1098 treesize of output 1033 [2023-02-13 23:31:02,960 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 1018 treesize of output 982 [2023-02-13 23:31:03,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 982 treesize of output 910 [2023-02-13 23:31:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:13,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864819629] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 23:31:13,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 23:31:13,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-13 23:31:13,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92657681] [2023-02-13 23:31:13,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 23:31:13,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-13 23:31:13,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:31:13,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-13 23:31:13,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-02-13 23:31:13,334 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 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) [2023-02-13 23:31:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:31:13,901 INFO L93 Difference]: Finished difference Result 121 states and 139 transitions. [2023-02-13 23:31:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-13 23:31:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 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 20 [2023-02-13 23:31:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:31:13,903 INFO L225 Difference]: With dead ends: 121 [2023-02-13 23:31:13,903 INFO L226 Difference]: Without dead ends: 119 [2023-02-13 23:31:13,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2023-02-13 23:31:13,903 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 135 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 20 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-13 23:31:13,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 215 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 209 Invalid, 13 Unknown, 0 Unchecked, 0.4s Time] [2023-02-13 23:31:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-02-13 23:31:13,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 45. [2023-02-13 23:31:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 44 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) [2023-02-13 23:31:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 53 transitions. [2023-02-13 23:31:13,913 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 53 transitions. Word has length 20 [2023-02-13 23:31:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:31:13,914 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 53 transitions. [2023-02-13 23:31:13,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 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) [2023-02-13 23:31:13,915 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 53 transitions. [2023-02-13 23:31:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-13 23:31:13,918 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:31:13,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:31:13,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-13 23:31:14,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:14,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:31:14,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:31:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash -67404919, now seen corresponding path program 1 times [2023-02-13 23:31:14,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:31:14,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126013471] [2023-02-13 23:31:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:14,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:31:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:14,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:14,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126013471] [2023-02-13 23:31:14,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126013471] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 23:31:14,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767676331] [2023-02-13 23:31:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:14,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:14,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:31:14,544 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) [2023-02-13 23:31:14,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-13 23:31:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:14,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-13 23:31:14,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 23:31:14,634 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 [2023-02-13 23:31:14,652 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 [2023-02-13 23:31:14,660 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-13 23:31:14,660 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 [2023-02-13 23:31:14,664 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 [2023-02-13 23:31:14,669 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 [2023-02-13 23:31:14,678 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-13 23:31:14,681 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 [2023-02-13 23:31:14,687 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 [2023-02-13 23:31:14,700 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-13 23:31:14,700 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 [2023-02-13 23:31:14,720 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-13 23:31:14,720 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 50 treesize of output 47 [2023-02-13 23:31:14,724 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 21 treesize of output 13 [2023-02-13 23:31:14,728 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 [2023-02-13 23:31:14,847 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 [2023-02-13 23:31:14,849 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 [2023-02-13 23:31:14,876 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-13 23:31:14,877 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:14,877 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 [2023-02-13 23:31:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:14,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 23:31:14,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 54 [2023-02-13 23:31:14,986 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_417 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_417) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|) |c_ULTIMATE.start_main_~end~0#1.base|)) (forall ((v_ArrVal_418 (Array Int Int))) (= |c_ULTIMATE.start_main_~end~0#1.offset| (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_418) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))) is different from false [2023-02-13 23:31:14,994 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:14,994 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 [2023-02-13 23:31:14,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:14,999 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 [2023-02-13 23:31:15,005 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:15,006 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 [2023-02-13 23:31:15,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-02-13 23:31:15,018 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:15,018 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 [2023-02-13 23:31:15,022 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 [2023-02-13 23:31:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:15,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767676331] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-13 23:31:15,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-13 23:31:15,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 22 [2023-02-13 23:31:15,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786180969] [2023-02-13 23:31:15,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-13 23:31:15,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-13 23:31:15,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:31:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-13 23:31:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=364, Unknown=1, NotChecked=38, Total=462 [2023-02-13 23:31:15,097 INFO L87 Difference]: Start difference. First operand 45 states and 53 transitions. Second operand has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 states have internal predecessors, (51), 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) [2023-02-13 23:31:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:31:15,606 INFO L93 Difference]: Finished difference Result 84 states and 96 transitions. [2023-02-13 23:31:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-13 23:31:15,606 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 states have internal predecessors, (51), 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 20 [2023-02-13 23:31:15,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:31:15,607 INFO L225 Difference]: With dead ends: 84 [2023-02-13 23:31:15,607 INFO L226 Difference]: Without dead ends: 72 [2023-02-13 23:31:15,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=663, Unknown=1, NotChecked=54, Total=870 [2023-02-13 23:31:15,608 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 47 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-13 23:31:15,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 301 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 355 Invalid, 0 Unknown, 31 Unchecked, 0.2s Time] [2023-02-13 23:31:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-02-13 23:31:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2023-02-13 23:31:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 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) [2023-02-13 23:31:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2023-02-13 23:31:15,615 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 20 [2023-02-13 23:31:15,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:31:15,615 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2023-02-13 23:31:15,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 22 states have internal predecessors, (51), 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) [2023-02-13 23:31:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2023-02-13 23:31:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-13 23:31:15,616 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:31:15,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:31:15,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-13 23:31:15,816 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 [2023-02-13 23:31:15,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-02-13 23:31:15,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:31:15,817 INFO L85 PathProgramCache]: Analyzing trace with hash 299800945, now seen corresponding path program 1 times [2023-02-13 23:31:15,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:31:15,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932159174] [2023-02-13 23:31:15,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:15,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:31:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:16,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:31:16,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932159174] [2023-02-13 23:31:16,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932159174] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-13 23:31:16,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340996654] [2023-02-13 23:31:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:31:16,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-13 23:31:16,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:31:16,309 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) [2023-02-13 23:31:16,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-13 23:31:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:31:16,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 58 conjunts are in the unsatisfiable core [2023-02-13 23:31:16,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 23:31:16,394 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 [2023-02-13 23:31:16,406 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 [2023-02-13 23:31:16,413 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-13 23:31:16,414 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 [2023-02-13 23:31:16,419 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 [2023-02-13 23:31:16,429 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-13 23:31:16,430 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 [2023-02-13 23:31:16,438 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 [2023-02-13 23:31:16,440 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 [2023-02-13 23:31:16,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:16,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:16,483 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 48 treesize of output 48 [2023-02-13 23:31:16,488 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 0 case distinctions, treesize of input 20 treesize of output 23 [2023-02-13 23:31:16,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-13 23:31:16,501 INFO L321 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2023-02-13 23:31:16,502 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 53 treesize of output 54 [2023-02-13 23:31:16,505 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 37 treesize of output 21 [2023-02-13 23:31:16,507 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 16 treesize of output 15 [2023-02-13 23:31:16,520 INFO L321 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2023-02-13 23:31:16,520 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 32 treesize of output 46 [2023-02-13 23:31:16,762 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-13 23:31:16,765 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-13 23:31:16,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 47 [2023-02-13 23:31:16,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2023-02-13 23:31:16,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-02-13 23:31:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:31:16,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-13 23:31:16,869 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:16,870 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 97 treesize of output 95 [2023-02-13 23:31:16,874 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:16,874 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 90 treesize of output 88 [2023-02-13 23:31:16,876 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 251 treesize of output 173 [2023-02-13 23:31:16,943 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:16,943 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 155 treesize of output 140 [2023-02-13 23:31:16,948 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:16,948 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 163 treesize of output 148 [2023-02-13 23:31:16,995 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:16,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1981 treesize of output 1474 [2023-02-13 23:31:17,583 INFO L321 Elim1Store]: treesize reduction 294, result has 60.5 percent of original size [2023-02-13 23:31:17,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 10276 treesize of output 9765 [2023-02-13 23:31:17,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8696 treesize of output 8288 [2023-02-13 23:31:17,898 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:17,899 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 8308 treesize of output 7702 [2023-02-13 23:31:18,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:18,106 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 7662 treesize of output 6512 [2023-02-13 23:31:18,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:18,253 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 6554 treesize of output 5768 [2023-02-13 23:31:18,476 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 6310 treesize of output 6274 [2023-02-13 23:31:18,590 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 6274 treesize of output 6202 [2023-02-13 23:31:18,753 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:18,753 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 5764 treesize of output 5724 [2023-02-13 23:31:18,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-13 23:31:18,932 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 6138 treesize of output 5848