./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:53:54,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:53:54,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:53:54,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:53:54,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:53:54,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:53:54,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:53:54,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:53:54,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:53:54,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:53:54,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:53:54,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:53:54,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:53:54,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:53:54,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:53:54,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:53:54,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:53:54,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:53:54,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:53:54,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:53:54,993 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:53:54,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:53:54,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:53:54,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:53:54,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:53:55,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:53:55,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:53:55,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:53:55,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:53:55,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:53:55,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:53:55,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:53:55,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:53:55,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:53:55,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:53:55,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:53:55,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:53:55,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:53:55,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:53:55,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:53:55,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:53:55,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:53:55,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:53:55,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:53:55,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:53:55,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:53:55,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:53:55,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:53:55,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:53:55,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:53:55,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:53:55,036 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:53:55,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:53:55,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:53:55,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:53:55,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:53:55,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:53:55,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:53:55,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:53:55,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:53:55,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:53:55,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:53:55,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:53:55,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:53:55,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:53:55,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:53:55,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:53:55,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:53:55,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-07-14 01:53:55,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:53:55,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:53:55,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:53:55,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:53:55,325 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:53:55,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-07-14 01:53:55,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094fc0c29/fac80b3dc61f41d38dcbc3889ee12c2f/FLAGe8e214751 [2022-07-14 01:53:56,198 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:53:56,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-07-14 01:53:56,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094fc0c29/fac80b3dc61f41d38dcbc3889ee12c2f/FLAGe8e214751 [2022-07-14 01:53:56,709 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/094fc0c29/fac80b3dc61f41d38dcbc3889ee12c2f [2022-07-14 01:53:56,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:53:56,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:53:56,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:53:56,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:53:56,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:53:56,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:53:56" (1/1) ... [2022-07-14 01:53:56,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585095f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:56, skipping insertion in model container [2022-07-14 01:53:56,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:53:56" (1/1) ... [2022-07-14 01:53:56,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:53:56,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:53:58,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-07-14 01:53:58,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:53:58,705 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:53:59,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-07-14 01:53:59,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:53:59,149 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:53:59,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59 WrapperNode [2022-07-14 01:53:59,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:53:59,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:53:59,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:53:59,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:53:59,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,369 INFO L137 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3781 [2022-07-14 01:53:59,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:53:59,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:53:59,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:53:59,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:53:59,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:53:59,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:53:59,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:53:59,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:53:59,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (1/1) ... [2022-07-14 01:53:59,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:53:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:53:59,672 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) [2022-07-14 01:53:59,679 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 [2022-07-14 01:53:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-07-14 01:53:59,705 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-07-14 01:53:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:53:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:53:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:53:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:53:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:53:59,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:53:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 01:53:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 01:53:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 01:53:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 01:53:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:53:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:53:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:53:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:53:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 01:53:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 01:53:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 01:53:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 01:53:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:53:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:53:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:53:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:53:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-14 01:53:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-14 01:53:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-07-14 01:53:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-07-14 01:53:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-07-14 01:53:59,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-07-14 01:53:59,709 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 01:53:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 01:53:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:53:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 01:53:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-07-14 01:53:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-07-14 01:53:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 01:53:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 01:53:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:53:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-07-14 01:53:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-07-14 01:53:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 01:53:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 01:53:59,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-14 01:53:59,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-14 01:53:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 01:53:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 01:53:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:53:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:53:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 01:53:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 01:53:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:53:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 01:53:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 01:53:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:53:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-07-14 01:53:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-07-14 01:53:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-14 01:53:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-14 01:53:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-14 01:53:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-14 01:53:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 01:53:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 01:53:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-14 01:53:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-14 01:53:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 01:53:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 01:53:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 01:53:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 01:53:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-14 01:53:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-14 01:53:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-07-14 01:53:59,715 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-07-14 01:53:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-07-14 01:53:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-07-14 01:53:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 01:53:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 01:53:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 01:53:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 01:53:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-07-14 01:53:59,716 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-07-14 01:53:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 01:53:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 01:53:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:53:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 01:53:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 01:53:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 01:53:59,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 01:53:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:53:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:53:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-07-14 01:53:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-07-14 01:53:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-07-14 01:53:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-07-14 01:53:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 01:53:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 01:53:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-07-14 01:53:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-07-14 01:53:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-14 01:53:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-14 01:53:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 01:53:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 01:53:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-07-14 01:53:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-07-14 01:53:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:53:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 01:53:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 01:53:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-07-14 01:53:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-07-14 01:53:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-14 01:53:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-14 01:53:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:53:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:53:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-07-14 01:53:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-07-14 01:53:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:53:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:53:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-07-14 01:53:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-07-14 01:53:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-14 01:53:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-14 01:53:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-07-14 01:53:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-07-14 01:53:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:53:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-07-14 01:53:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-07-14 01:53:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:53:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:53:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:53:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 01:53:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 01:53:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:53:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 01:53:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 01:53:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 01:53:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-07-14 01:53:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-07-14 01:53:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-07-14 01:53:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-07-14 01:53:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-07-14 01:53:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-07-14 01:53:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 01:53:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 01:53:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-14 01:53:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-14 01:53:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-07-14 01:53:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-07-14 01:53:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-14 01:53:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-14 01:53:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:53:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-14 01:53:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-14 01:53:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:53:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:53:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-07-14 01:53:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-07-14 01:53:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-14 01:53:59,727 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-14 01:54:00,347 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:54:00,351 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:54:00,874 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:54:02,951 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 01:54:03,110 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-07-14 01:54:03,110 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-07-14 01:54:03,110 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret673#1 && #t~ret673#1 <= 9223372036854775807;havoc #t~ret673#1; [2022-07-14 01:54:03,110 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret673#1 := schedule_timeout_interruptible(1); srcloc: null [2022-07-14 01:54:03,110 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-07-14 01:54:03,111 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-07-14 01:54:03,188 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:54:03,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:54:03,211 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 01:54:03,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:54:03 BoogieIcfgContainer [2022-07-14 01:54:03,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:54:03,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:54:03,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:54:03,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:54:03,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:53:56" (1/3) ... [2022-07-14 01:54:03,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7145996b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:54:03, skipping insertion in model container [2022-07-14 01:54:03,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:53:59" (2/3) ... [2022-07-14 01:54:03,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7145996b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:54:03, skipping insertion in model container [2022-07-14 01:54:03,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:54:03" (3/3) ... [2022-07-14 01:54:03,227 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-07-14 01:54:03,241 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:54:03,241 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:54:03,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:54:03,365 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@19a373bd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26007d1d [2022-07-14 01:54:03,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:54:03,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 1687 states, 1083 states have (on average 1.3776546629732225) internal successors, (1492), 1137 states have internal predecessors, (1492), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-07-14 01:54:03,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 01:54:03,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:03,417 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:03,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:03,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -493404073, now seen corresponding path program 1 times [2022-07-14 01:54:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:03,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176074292] [2022-07-14 01:54:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:54:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:54:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:54:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 01:54:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 01:54:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:54:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 01:54:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 01:54:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 01:54:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 01:54:04,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176074292] [2022-07-14 01:54:04,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176074292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:04,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:04,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:54:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722536533] [2022-07-14 01:54:04,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:04,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:54:04,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:04,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:54:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:54:04,352 INFO L87 Difference]: Start difference. First operand has 1687 states, 1083 states have (on average 1.3776546629732225) internal successors, (1492), 1137 states have internal predecessors, (1492), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 01:54:08,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:08,899 INFO L93 Difference]: Finished difference Result 3516 states and 5444 transitions. [2022-07-14 01:54:08,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:54:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-14 01:54:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:08,929 INFO L225 Difference]: With dead ends: 3516 [2022-07-14 01:54:08,929 INFO L226 Difference]: Without dead ends: 1814 [2022-07-14 01:54:08,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:54:08,947 INFO L413 NwaCegarLoop]: 2090 mSDtfsCounter, 2137 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 2576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 4129 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2576 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:08,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 4129 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2576 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-14 01:54:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2022-07-14 01:54:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1661. [2022-07-14 01:54:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1066 states have (on average 1.3377110694183865) internal successors, (1426), 1110 states have internal predecessors, (1426), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2022-07-14 01:54:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2477 transitions. [2022-07-14 01:54:09,187 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2477 transitions. Word has length 169 [2022-07-14 01:54:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:09,187 INFO L495 AbstractCegarLoop]: Abstraction has 1661 states and 2477 transitions. [2022-07-14 01:54:09,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 01:54:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2477 transitions. [2022-07-14 01:54:09,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-07-14 01:54:09,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:09,195 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:09,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:54:09,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash -202498239, now seen corresponding path program 1 times [2022-07-14 01:54:09,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759357359] [2022-07-14 01:54:09,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:09,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:54:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:54:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:54:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:54:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 01:54:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 01:54:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:54:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 01:54:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 01:54:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 01:54:09,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:09,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759357359] [2022-07-14 01:54:09,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759357359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:09,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:09,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:54:09,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887148947] [2022-07-14 01:54:09,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:09,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:54:09,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:09,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:54:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:54:09,678 INFO L87 Difference]: Start difference. First operand 1661 states and 2477 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:20,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:54:23,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:54:25,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:54:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:26,419 INFO L93 Difference]: Finished difference Result 5251 states and 7909 transitions. [2022-07-14 01:54:26,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:54:26,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2022-07-14 01:54:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:26,447 INFO L225 Difference]: With dead ends: 5251 [2022-07-14 01:54:26,447 INFO L226 Difference]: Without dead ends: 3612 [2022-07-14 01:54:26,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:54:26,459 INFO L413 NwaCegarLoop]: 2515 mSDtfsCounter, 6894 mSDsluCounter, 4797 mSDsCounter, 0 mSdLazyCounter, 8065 mSolverCounterSat, 7185 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7148 SdHoareTripleChecker+Valid, 7312 SdHoareTripleChecker+Invalid, 15253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7185 IncrementalHoareTripleChecker+Valid, 8065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:26,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7148 Valid, 7312 Invalid, 15253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7185 Valid, 8065 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2022-07-14 01:54:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2022-07-14 01:54:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3300. [2022-07-14 01:54:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2120 states have (on average 1.3377358490566038) internal successors, (2836), 2208 states have internal predecessors, (2836), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1010 states have call predecessors, (1046), 1042 states have call successors, (1046) [2022-07-14 01:54:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4925 transitions. [2022-07-14 01:54:26,723 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4925 transitions. Word has length 168 [2022-07-14 01:54:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:26,727 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4925 transitions. [2022-07-14 01:54:26,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:26,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4925 transitions. [2022-07-14 01:54:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-14 01:54:26,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:26,740 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:26,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:54:26,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:26,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:26,744 INFO L85 PathProgramCache]: Analyzing trace with hash -102197040, now seen corresponding path program 1 times [2022-07-14 01:54:26,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:26,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025709925] [2022-07-14 01:54:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:54:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:54:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:54:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-14 01:54:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 01:54:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 01:54:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 01:54:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:54:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 01:54:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:27,206 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 01:54:27,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:27,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025709925] [2022-07-14 01:54:27,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025709925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:27,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:27,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:54:27,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915684383] [2022-07-14 01:54:27,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:27,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:54:27,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:27,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:54:27,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:54:27,215 INFO L87 Difference]: Start difference. First operand 3300 states and 4925 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:39,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:54:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:41,294 INFO L93 Difference]: Finished difference Result 10475 states and 15779 transitions. [2022-07-14 01:54:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:54:41,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2022-07-14 01:54:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:41,362 INFO L225 Difference]: With dead ends: 10475 [2022-07-14 01:54:41,363 INFO L226 Difference]: Without dead ends: 7197 [2022-07-14 01:54:41,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:54:41,393 INFO L413 NwaCegarLoop]: 2832 mSDtfsCounter, 5116 mSDsluCounter, 5791 mSDsCounter, 0 mSdLazyCounter, 9412 mSolverCounterSat, 5228 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5369 SdHoareTripleChecker+Valid, 8623 SdHoareTripleChecker+Invalid, 14641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5228 IncrementalHoareTripleChecker+Valid, 9412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:41,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5369 Valid, 8623 Invalid, 14641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5228 Valid, 9412 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-07-14 01:54:41,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2022-07-14 01:54:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 6565. [2022-07-14 01:54:41,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6565 states, 4216 states have (on average 1.337998102466793) internal successors, (5641), 4399 states have internal predecessors, (5641), 2076 states have call successors, (2076), 273 states have call predecessors, (2076), 272 states have return successors, (2089), 2004 states have call predecessors, (2089), 2075 states have call successors, (2089) [2022-07-14 01:54:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6565 states to 6565 states and 9806 transitions. [2022-07-14 01:54:41,872 INFO L78 Accepts]: Start accepts. Automaton has 6565 states and 9806 transitions. Word has length 167 [2022-07-14 01:54:41,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:41,874 INFO L495 AbstractCegarLoop]: Abstraction has 6565 states and 9806 transitions. [2022-07-14 01:54:41,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 6565 states and 9806 transitions. [2022-07-14 01:54:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-14 01:54:41,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:41,883 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:41,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:54:41,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:41,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:41,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1313951326, now seen corresponding path program 1 times [2022-07-14 01:54:41,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:41,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022981231] [2022-07-14 01:54:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:54:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:54:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:54:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 01:54:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:54:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:54:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 01:54:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 01:54:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 01:54:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 01:54:42,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:42,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022981231] [2022-07-14 01:54:42,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022981231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:42,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:42,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:54:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097987843] [2022-07-14 01:54:42,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:42,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:54:42,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:54:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:54:42,266 INFO L87 Difference]: Start difference. First operand 6565 states and 9806 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:54,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:54:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:54:55,884 INFO L93 Difference]: Finished difference Result 20898 states and 31483 transitions. [2022-07-14 01:54:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:54:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2022-07-14 01:54:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:54:55,980 INFO L225 Difference]: With dead ends: 20898 [2022-07-14 01:54:55,980 INFO L226 Difference]: Without dead ends: 14355 [2022-07-14 01:54:56,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:54:56,020 INFO L413 NwaCegarLoop]: 2272 mSDtfsCounter, 5999 mSDsluCounter, 5873 mSDsCounter, 0 mSdLazyCounter, 9078 mSolverCounterSat, 5866 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6252 SdHoareTripleChecker+Valid, 8145 SdHoareTripleChecker+Invalid, 14945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5866 IncrementalHoareTripleChecker+Valid, 9078 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:54:56,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6252 Valid, 8145 Invalid, 14945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5866 Valid, 9078 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2022-07-14 01:54:56,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2022-07-14 01:54:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 13113. [2022-07-14 01:54:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13113 states, 8426 states have (on average 1.3376453833372894) internal successors, (11271), 8790 states have internal predecessors, (11271), 4141 states have call successors, (4141), 546 states have call predecessors, (4141), 545 states have return successors, (4178), 4000 states have call predecessors, (4178), 4140 states have call successors, (4178) [2022-07-14 01:54:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13113 states to 13113 states and 19590 transitions. [2022-07-14 01:54:56,946 INFO L78 Accepts]: Start accepts. Automaton has 13113 states and 19590 transitions. Word has length 170 [2022-07-14 01:54:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:54:56,947 INFO L495 AbstractCegarLoop]: Abstraction has 13113 states and 19590 transitions. [2022-07-14 01:54:56,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:54:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 13113 states and 19590 transitions. [2022-07-14 01:54:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 01:54:56,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:54:56,957 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:54:56,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:54:56,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:54:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:54:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1180888205, now seen corresponding path program 1 times [2022-07-14 01:54:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:54:56,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110124870] [2022-07-14 01:54:56,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:54:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:54:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:54:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:54:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:54:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:54:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:54:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:54:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:54:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:54:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:54:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 01:54:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 01:54:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 01:54:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 01:54:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 01:54:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 01:54:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:54:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 01:54:57,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:54:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110124870] [2022-07-14 01:54:57,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110124870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:54:57,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:54:57,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:54:57,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775031280] [2022-07-14 01:54:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:54:57,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:54:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:54:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:54:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:54:57,344 INFO L87 Difference]: Start difference. First operand 13113 states and 19590 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:55:09,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:55:12,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:55:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:13,257 INFO L93 Difference]: Finished difference Result 41517 states and 62537 transitions. [2022-07-14 01:55:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 01:55:13,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2022-07-14 01:55:13,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:13,519 INFO L225 Difference]: With dead ends: 41517 [2022-07-14 01:55:13,520 INFO L226 Difference]: Without dead ends: 28426 [2022-07-14 01:55:13,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-07-14 01:55:13,599 INFO L413 NwaCegarLoop]: 2275 mSDtfsCounter, 7373 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 7582 mSolverCounterSat, 7581 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7626 SdHoareTripleChecker+Valid, 6870 SdHoareTripleChecker+Invalid, 15165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7581 IncrementalHoareTripleChecker+Valid, 7582 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:13,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7626 Valid, 6870 Invalid, 15165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7581 Valid, 7582 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-07-14 01:55:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28426 states. [2022-07-14 01:55:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28426 to 26037. [2022-07-14 01:55:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26037 states, 16726 states have (on average 1.3373191438479015) internal successors, (22368), 17444 states have internal predecessors, (22368), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2022-07-14 01:55:15,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26037 states to 26037 states and 38909 transitions. [2022-07-14 01:55:15,352 INFO L78 Accepts]: Start accepts. Automaton has 26037 states and 38909 transitions. Word has length 169 [2022-07-14 01:55:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:15,353 INFO L495 AbstractCegarLoop]: Abstraction has 26037 states and 38909 transitions. [2022-07-14 01:55:15,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 01:55:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 26037 states and 38909 transitions. [2022-07-14 01:55:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-14 01:55:15,364 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:15,364 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:15,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:55:15,365 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:15,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1303944672, now seen corresponding path program 1 times [2022-07-14 01:55:15,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:15,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229170430] [2022-07-14 01:55:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:55:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:55:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:55:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 01:55:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 01:55:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 01:55:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 01:55:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 01:55:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 01:55:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 01:55:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-07-14 01:55:15,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:15,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229170430] [2022-07-14 01:55:15,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229170430] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:15,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268728363] [2022-07-14 01:55:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:15,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:15,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:15,775 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) [2022-07-14 01:55:15,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:55:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:16,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 01:55:16,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-07-14 01:55:16,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:16,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268728363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:16,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:55:16,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-14 01:55:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414759873] [2022-07-14 01:55:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:16,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:55:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:55:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:55:16,516 INFO L87 Difference]: Start difference. First operand 26037 states and 38909 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 01:55:17,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:17,546 INFO L93 Difference]: Finished difference Result 53012 states and 79308 transitions. [2022-07-14 01:55:17,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:55:17,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2022-07-14 01:55:17,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:17,709 INFO L225 Difference]: With dead ends: 53012 [2022-07-14 01:55:17,709 INFO L226 Difference]: Without dead ends: 26997 [2022-07-14 01:55:17,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:55:17,828 INFO L413 NwaCegarLoop]: 2544 mSDtfsCounter, 54 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:17,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 5025 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:55:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26997 states. [2022-07-14 01:55:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26997 to 26052. [2022-07-14 01:55:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26052 states, 16741 states have (on average 1.3370169046054596) internal successors, (22383), 17459 states have internal predecessors, (22383), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2022-07-14 01:55:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26052 states to 26052 states and 38924 transitions. [2022-07-14 01:55:19,533 INFO L78 Accepts]: Start accepts. Automaton has 26052 states and 38924 transitions. Word has length 180 [2022-07-14 01:55:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:19,534 INFO L495 AbstractCegarLoop]: Abstraction has 26052 states and 38924 transitions. [2022-07-14 01:55:19,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 01:55:19,535 INFO L276 IsEmpty]: Start isEmpty. Operand 26052 states and 38924 transitions. [2022-07-14 01:55:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 01:55:19,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:19,546 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:19,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:19,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 01:55:19,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash -337206999, now seen corresponding path program 1 times [2022-07-14 01:55:19,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:19,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033336914] [2022-07-14 01:55:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:19,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:19,841 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 01:55:19,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196027585] [2022-07-14 01:55:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:19,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:19,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:19,844 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) [2022-07-14 01:55:19,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 01:55:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:20,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2250 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:20,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-14 01:55:20,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:20,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033336914] [2022-07-14 01:55:20,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 01:55:20,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196027585] [2022-07-14 01:55:20,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196027585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:20,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:20,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:55:20,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427482128] [2022-07-14 01:55:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:20,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:55:20,705 INFO L87 Difference]: Start difference. First operand 26052 states and 38924 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:22,620 INFO L93 Difference]: Finished difference Result 65194 states and 97410 transitions. [2022-07-14 01:55:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2022-07-14 01:55:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:22,924 INFO L225 Difference]: With dead ends: 65194 [2022-07-14 01:55:22,924 INFO L226 Difference]: Without dead ends: 39164 [2022-07-14 01:55:23,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:55:23,085 INFO L413 NwaCegarLoop]: 3561 mSDtfsCounter, 2497 mSDsluCounter, 16682 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 20243 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:23,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 20243 Invalid, 82 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:55:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39164 states. [2022-07-14 01:55:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39164 to 39015. [2022-07-14 01:55:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39015 states, 25080 states have (on average 1.3377990430622009) internal successors, (33552), 26164 states have internal predecessors, (33552), 12303 states have call successors, (12303), 1624 states have call predecessors, (12303), 1631 states have return successors, (12486), 11886 states have call predecessors, (12486), 12302 states have call successors, (12486) [2022-07-14 01:55:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39015 states to 39015 states and 58341 transitions. [2022-07-14 01:55:25,384 INFO L78 Accepts]: Start accepts. Automaton has 39015 states and 58341 transitions. Word has length 184 [2022-07-14 01:55:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:25,385 INFO L495 AbstractCegarLoop]: Abstraction has 39015 states and 58341 transitions. [2022-07-14 01:55:25,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 39015 states and 58341 transitions. [2022-07-14 01:55:25,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-14 01:55:25,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:25,402 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:25,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:25,627 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,SelfDestructingSolverStorable6 [2022-07-14 01:55:25,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:25,628 INFO L85 PathProgramCache]: Analyzing trace with hash -421023629, now seen corresponding path program 1 times [2022-07-14 01:55:25,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:25,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792516907] [2022-07-14 01:55:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:25,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:25,707 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 01:55:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549928029] [2022-07-14 01:55:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:25,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:25,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:25,709 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) [2022-07-14 01:55:25,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 01:55:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:26,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:26,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-14 01:55:26,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:26,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:26,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792516907] [2022-07-14 01:55:26,474 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 01:55:26,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549928029] [2022-07-14 01:55:26,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549928029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:26,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:26,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:55:26,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582971446] [2022-07-14 01:55:26,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:26,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:26,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:26,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:55:26,477 INFO L87 Difference]: Start difference. First operand 39015 states and 58341 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:28,824 INFO L93 Difference]: Finished difference Result 91173 states and 136290 transitions. [2022-07-14 01:55:28,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:28,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2022-07-14 01:55:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:29,136 INFO L225 Difference]: With dead ends: 91173 [2022-07-14 01:55:29,136 INFO L226 Difference]: Without dead ends: 52180 [2022-07-14 01:55:29,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:55:29,307 INFO L413 NwaCegarLoop]: 3859 mSDtfsCounter, 2497 mSDsluCounter, 17862 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21721 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:29,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21721 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 01:55:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52180 states. [2022-07-14 01:55:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52180 to 52010. [2022-07-14 01:55:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52010 states, 33439 states have (on average 1.3379885762134036) internal successors, (44741), 34905 states have internal predecessors, (44741), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2188 states have return successors, (16667), 15821 states have call predecessors, (16667), 16381 states have call successors, (16667) [2022-07-14 01:55:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52010 states to 52010 states and 77790 transitions. [2022-07-14 01:55:32,354 INFO L78 Accepts]: Start accepts. Automaton has 52010 states and 77790 transitions. Word has length 185 [2022-07-14 01:55:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:32,358 INFO L495 AbstractCegarLoop]: Abstraction has 52010 states and 77790 transitions. [2022-07-14 01:55:32,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 52010 states and 77790 transitions. [2022-07-14 01:55:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-14 01:55:32,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:32,383 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:32,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:32,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:32,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1577407934, now seen corresponding path program 1 times [2022-07-14 01:55:32,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:32,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62622383] [2022-07-14 01:55:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:32,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:32,682 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 01:55:32,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464773429] [2022-07-14 01:55:32,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:32,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:32,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:32,684 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) [2022-07-14 01:55:32,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 01:55:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:33,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 2254 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:33,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-14 01:55:33,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:33,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:33,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62622383] [2022-07-14 01:55:33,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 01:55:33,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464773429] [2022-07-14 01:55:33,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464773429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:33,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:33,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:55:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629202432] [2022-07-14 01:55:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:33,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:33,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:55:33,709 INFO L87 Difference]: Start difference. First operand 52010 states and 77790 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:36,261 INFO L93 Difference]: Finished difference Result 117152 states and 175170 transitions. [2022-07-14 01:55:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:36,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2022-07-14 01:55:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:36,611 INFO L225 Difference]: With dead ends: 117152 [2022-07-14 01:55:36,612 INFO L226 Difference]: Without dead ends: 65164 [2022-07-14 01:55:37,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:55:37,043 INFO L413 NwaCegarLoop]: 3862 mSDtfsCounter, 2497 mSDsluCounter, 17874 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21736 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:37,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21736 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:55:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65164 states. [2022-07-14 01:55:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65164 to 52032. [2022-07-14 01:55:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52032 states, 33455 states have (on average 1.3378269316992977) internal successors, (44757), 34923 states have internal predecessors, (44757), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2194 states have return successors, (16676), 15825 states have call predecessors, (16676), 16381 states have call successors, (16676) [2022-07-14 01:55:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52032 states to 52032 states and 77815 transitions. [2022-07-14 01:55:39,925 INFO L78 Accepts]: Start accepts. Automaton has 52032 states and 77815 transitions. Word has length 186 [2022-07-14 01:55:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:39,925 INFO L495 AbstractCegarLoop]: Abstraction has 52032 states and 77815 transitions. [2022-07-14 01:55:39,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 52032 states and 77815 transitions. [2022-07-14 01:55:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 01:55:39,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:39,945 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:39,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 01:55:40,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:40,172 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1623651796, now seen corresponding path program 1 times [2022-07-14 01:55:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:40,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28280209] [2022-07-14 01:55:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:40,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:40,239 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-14 01:55:40,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851876902] [2022-07-14 01:55:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:40,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:40,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:40,241 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) [2022-07-14 01:55:40,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 01:55:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:40,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:55:40,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-14 01:55:40,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:55:40,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:40,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28280209] [2022-07-14 01:55:40,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-14 01:55:40,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851876902] [2022-07-14 01:55:40,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851876902] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:55:40,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:55:40,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:55:40,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139829287] [2022-07-14 01:55:40,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:55:40,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:55:40,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:40,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:55:40,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:55:40,992 INFO L87 Difference]: Start difference. First operand 52032 states and 77815 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:43,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:55:43,861 INFO L93 Difference]: Finished difference Result 117182 states and 175203 transitions. [2022-07-14 01:55:43,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 01:55:43,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-14 01:55:43,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:55:44,269 INFO L225 Difference]: With dead ends: 117182 [2022-07-14 01:55:44,269 INFO L226 Difference]: Without dead ends: 65172 [2022-07-14 01:55:44,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:55:44,506 INFO L413 NwaCegarLoop]: 3862 mSDtfsCounter, 2497 mSDsluCounter, 17874 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 21736 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:55:44,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2501 Valid, 21736 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 01:55:44,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65172 states. [2022-07-14 01:55:47,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65172 to 52045. [2022-07-14 01:55:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52045 states, 33465 states have (on average 1.33772598236964) internal successors, (44767), 34932 states have internal predecessors, (44767), 16382 states have call successors, (16382), 2161 states have call predecessors, (16382), 2197 states have return successors, (16679), 15829 states have call predecessors, (16679), 16381 states have call successors, (16679) [2022-07-14 01:55:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52045 states to 52045 states and 77828 transitions. [2022-07-14 01:55:47,906 INFO L78 Accepts]: Start accepts. Automaton has 52045 states and 77828 transitions. Word has length 187 [2022-07-14 01:55:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:55:47,907 INFO L495 AbstractCegarLoop]: Abstraction has 52045 states and 77828 transitions. [2022-07-14 01:55:47,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 01:55:47,907 INFO L276 IsEmpty]: Start isEmpty. Operand 52045 states and 77828 transitions. [2022-07-14 01:55:47,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-14 01:55:47,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:55:47,928 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:55:47,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-14 01:55:48,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 01:55:48,143 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:55:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:55:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1775948927, now seen corresponding path program 1 times [2022-07-14 01:55:48,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:55:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111911182] [2022-07-14 01:55:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:55:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:55:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 01:55:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 01:55:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 01:55:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 01:55:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:55:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 01:55:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 01:55:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:55:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 01:55:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:55:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 01:55:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 01:55:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:55:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 01:55:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 01:55:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 01:55:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 01:55:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-14 01:55:48,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:55:48,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111911182] [2022-07-14 01:55:48,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111911182] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:55:48,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337112687] [2022-07-14 01:55:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:55:48,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:55:48,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:55:48,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:55:48,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 01:55:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:55:49,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 2335 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 01:55:49,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:55:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-14 01:55:49,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 01:55:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-07-14 01:55:49,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337112687] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 01:55:49,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 01:55:49,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-07-14 01:55:49,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760499952] [2022-07-14 01:55:49,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 01:55:49,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 01:55:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:55:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 01:55:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-14 01:55:49,873 INFO L87 Difference]: Start difference. First operand 52045 states and 77828 transitions. Second operand has 24 states, 24 states have (on average 6.125) internal successors, (147), 15 states have internal predecessors, (147), 5 states have call successors, (46), 9 states have call predecessors, (46), 7 states have return successors, (36), 6 states have call predecessors, (36), 5 states have call successors, (36) [2022-07-14 01:57:10,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:12,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:14,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:16,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:18,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:20,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:23,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:26,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:28,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:30,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:32,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:34,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:37,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:39,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:41,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-14 01:57:43,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []