java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:55:16,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:55:16,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:55:16,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:55:16,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:55:16,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:55:16,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:55:16,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:55:16,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:55:16,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:55:16,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:55:16,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:55:16,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:55:16,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:55:16,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:55:16,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:55:16,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:55:16,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:55:16,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:55:16,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:55:16,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:55:16,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:55:16,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:55:16,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:55:16,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:55:16,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:55:16,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:55:16,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:55:16,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:55:16,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:55:16,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:55:16,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:55:16,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:55:16,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:55:16,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:55:16,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:55:16,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:55:16,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:55:16,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:55:16,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:55:16,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:55:16,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 12:55:16,760 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:55:16,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:55:16,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:55:16,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:55:16,764 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:55:16,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:55:16,765 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:55:16,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:55:16,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:55:16,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:55:16,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:55:16,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:55:16,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:55:16,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:55:16,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:55:16,768 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:55:16,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:55:16,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:55:16,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:55:16,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:55:16,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:55:16,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:55:16,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:55:16,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:55:16,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:55:16,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:55:16,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:55:16,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:55:16,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 12:55:17,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:55:17,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:55:17,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:55:17,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:55:17,074 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:55:17,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-07 12:55:17,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512e27009/f9b0abc85f54455c88d942f897f02312/FLAG19b12d913 [2019-10-07 12:55:17,778 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:55:17,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-07 12:55:17,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512e27009/f9b0abc85f54455c88d942f897f02312/FLAG19b12d913 [2019-10-07 12:55:17,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512e27009/f9b0abc85f54455c88d942f897f02312 [2019-10-07 12:55:17,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:55:17,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:55:17,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:55:17,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:55:17,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:55:17,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:55:17" (1/1) ... [2019-10-07 12:55:17,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f64e19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:17, skipping insertion in model container [2019-10-07 12:55:17,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:55:17" (1/1) ... [2019-10-07 12:55:17,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:55:18,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:55:19,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:55:19,046 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:55:19,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:55:19,298 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:55:19,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19 WrapperNode [2019-10-07 12:55:19,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:55:19,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:55:19,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:55:19,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:55:19,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... [2019-10-07 12:55:19,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:55:19,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:55:19,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:55:19,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:55:19,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:55:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:55:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:55:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-07 12:55:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2019-10-07 12:55:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2019-10-07 12:55:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-07 12:55:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 12:55:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 12:55:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 12:55:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 12:55:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-07 12:55:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2019-10-07 12:55:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2019-10-07 12:55:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2019-10-07 12:55:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2019-10-07 12:55:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-07 12:55:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2019-10-07 12:55:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2019-10-07 12:55:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2019-10-07 12:55:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-07 12:55:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:55:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2019-10-07 12:55:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 12:55:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:55:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-07 12:55:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-07 12:55:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2019-10-07 12:55:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2019-10-07 12:55:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2019-10-07 12:55:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 12:55:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 12:55:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 12:55:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 12:55:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:55:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 12:55:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 12:55:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 12:55:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 12:55:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 12:55:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 12:55:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 12:55:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 12:55:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 12:55:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 12:55:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-07 12:55:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-07 12:55:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-07 12:55:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-07 12:55:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2019-10-07 12:55:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2019-10-07 12:55:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-07 12:55:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2019-10-07 12:55:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2019-10-07 12:55:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-07 12:55:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2019-10-07 12:55:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2019-10-07 12:55:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2019-10-07 12:55:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2019-10-07 12:55:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2019-10-07 12:55:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2019-10-07 12:55:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2019-10-07 12:55:19,627 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-10-07 12:55:19,628 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2019-10-07 12:55:19,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2019-10-07 12:55:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2019-10-07 12:55:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2019-10-07 12:55:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2019-10-07 12:55:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2019-10-07 12:55:19,630 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:55:19,631 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2019-10-07 12:55:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2019-10-07 12:55:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 12:55:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 12:55:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 12:55:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:55:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:55:20,305 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 12:55:24,857 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:55:24,857 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:55:24,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:55:24 BoogieIcfgContainer [2019-10-07 12:55:24,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:55:24,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:55:24,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:55:24,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:55:24,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:55:17" (1/3) ... [2019-10-07 12:55:24,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e387672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:55:24, skipping insertion in model container [2019-10-07 12:55:24,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:19" (2/3) ... [2019-10-07 12:55:24,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e387672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:55:24, skipping insertion in model container [2019-10-07 12:55:24,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:55:24" (3/3) ... [2019-10-07 12:55:24,867 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-07 12:55:24,877 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:55:24,889 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:55:24,900 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:55:24,936 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:55:24,936 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:55:24,936 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:55:24,936 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:55:24,937 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:55:24,937 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:55:24,937 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:55:24,937 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:55:24,967 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states. [2019-10-07 12:55:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 12:55:24,989 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:24,993 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:55:24,997 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:25,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:25,002 INFO L82 PathProgramCache]: Analyzing trace with hash -464148251, now seen corresponding path program 1 times [2019-10-07 12:55:25,011 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:25,011 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:25,011 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:25,011 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:25,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 12:55:25,433 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:25,434 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:25,434 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:55:25,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:55:25,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:55:25,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:55:25,455 INFO L87 Difference]: Start difference. First operand 545 states. Second operand 3 states. [2019-10-07 12:55:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:25,586 INFO L93 Difference]: Finished difference Result 715 states and 912 transitions. [2019-10-07 12:55:25,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:55:25,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 12:55:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:25,610 INFO L225 Difference]: With dead ends: 715 [2019-10-07 12:55:25,611 INFO L226 Difference]: Without dead ends: 284 [2019-10-07 12:55:25,619 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:55:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2019-10-07 12:55:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2019-10-07 12:55:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2019-10-07 12:55:25,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 344 transitions. [2019-10-07 12:55:25,707 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 344 transitions. Word has length 43 [2019-10-07 12:55:25,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:25,709 INFO L462 AbstractCegarLoop]: Abstraction has 284 states and 344 transitions. [2019-10-07 12:55:25,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:55:25,709 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 344 transitions. [2019-10-07 12:55:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-10-07 12:55:25,722 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:25,722 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:25,723 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash -817722709, now seen corresponding path program 1 times [2019-10-07 12:55:25,723 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:25,723 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:25,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:25,724 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 12:55:25,906 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:25,907 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:25,907 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:55:25,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:55:25,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:55:25,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:55:25,911 INFO L87 Difference]: Start difference. First operand 284 states and 344 transitions. Second operand 3 states. [2019-10-07 12:55:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:26,038 INFO L93 Difference]: Finished difference Result 668 states and 812 transitions. [2019-10-07 12:55:26,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:55:26,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2019-10-07 12:55:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:26,043 INFO L225 Difference]: With dead ends: 668 [2019-10-07 12:55:26,044 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 12:55:26,046 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:55:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 12:55:26,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 396. [2019-10-07 12:55:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-10-07 12:55:26,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 482 transitions. [2019-10-07 12:55:26,087 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 482 transitions. Word has length 61 [2019-10-07 12:55:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:26,087 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 482 transitions. [2019-10-07 12:55:26,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:55:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 482 transitions. [2019-10-07 12:55:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-07 12:55:26,090 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:26,090 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:26,091 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:26,091 INFO L82 PathProgramCache]: Analyzing trace with hash 700979260, now seen corresponding path program 1 times [2019-10-07 12:55:26,091 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:26,091 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,092 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 12:55:26,261 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,261 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:26,262 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:55:26,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:55:26,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:55:26,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:55:26,263 INFO L87 Difference]: Start difference. First operand 396 states and 482 transitions. Second operand 5 states. [2019-10-07 12:55:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:26,428 INFO L93 Difference]: Finished difference Result 1164 states and 1434 transitions. [2019-10-07 12:55:26,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 12:55:26,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-07 12:55:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:26,439 INFO L225 Difference]: With dead ends: 1164 [2019-10-07 12:55:26,440 INFO L226 Difference]: Without dead ends: 791 [2019-10-07 12:55:26,442 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:55:26,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-10-07 12:55:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 768. [2019-10-07 12:55:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-07 12:55:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 939 transitions. [2019-10-07 12:55:26,570 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 939 transitions. Word has length 63 [2019-10-07 12:55:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:26,571 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 939 transitions. [2019-10-07 12:55:26,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:55:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 939 transitions. [2019-10-07 12:55:26,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-07 12:55:26,576 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:26,576 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:26,576 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:26,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:26,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1086414561, now seen corresponding path program 1 times [2019-10-07 12:55:26,577 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:26,577 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,578 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,578 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 12:55:26,737 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,737 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:26,738 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:55:26,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:55:26,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:55:26,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:55:26,739 INFO L87 Difference]: Start difference. First operand 768 states and 939 transitions. Second operand 5 states. [2019-10-07 12:55:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:26,836 INFO L93 Difference]: Finished difference Result 1287 states and 1570 transitions. [2019-10-07 12:55:26,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:55:26,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-07 12:55:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:26,843 INFO L225 Difference]: With dead ends: 1287 [2019-10-07 12:55:26,843 INFO L226 Difference]: Without dead ends: 800 [2019-10-07 12:55:26,845 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:55:26,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2019-10-07 12:55:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 776. [2019-10-07 12:55:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2019-10-07 12:55:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 943 transitions. [2019-10-07 12:55:26,891 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 943 transitions. Word has length 64 [2019-10-07 12:55:26,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:26,891 INFO L462 AbstractCegarLoop]: Abstraction has 776 states and 943 transitions. [2019-10-07 12:55:26,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:55:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 943 transitions. [2019-10-07 12:55:26,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-07 12:55:26,893 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:26,894 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:26,894 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:26,894 INFO L82 PathProgramCache]: Analyzing trace with hash -2008858081, now seen corresponding path program 1 times [2019-10-07 12:55:26,895 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:26,895 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 12:55:26,996 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:26,997 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:26,998 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:55:26,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:55:26,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:55:26,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:55:27,000 INFO L87 Difference]: Start difference. First operand 776 states and 943 transitions. Second operand 5 states. [2019-10-07 12:55:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:27,105 INFO L93 Difference]: Finished difference Result 1305 states and 1578 transitions. [2019-10-07 12:55:27,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:55:27,106 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-07 12:55:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:27,113 INFO L225 Difference]: With dead ends: 1305 [2019-10-07 12:55:27,113 INFO L226 Difference]: Without dead ends: 808 [2019-10-07 12:55:27,116 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:55:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2019-10-07 12:55:27,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 784. [2019-10-07 12:55:27,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-07 12:55:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 947 transitions. [2019-10-07 12:55:27,180 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 947 transitions. Word has length 65 [2019-10-07 12:55:27,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:27,181 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 947 transitions. [2019-10-07 12:55:27,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:55:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 947 transitions. [2019-10-07 12:55:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-07 12:55:27,185 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:27,185 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:27,186 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:27,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1887646046, now seen corresponding path program 1 times [2019-10-07 12:55:27,186 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:27,187 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:27,187 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:27,187 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 12:55:27,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:27,370 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:55:27,370 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:55:27,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:55:27,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:55:27,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:55:27,372 INFO L87 Difference]: Start difference. First operand 784 states and 947 transitions. Second operand 5 states. [2019-10-07 12:55:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:27,471 INFO L93 Difference]: Finished difference Result 1233 states and 1483 transitions. [2019-10-07 12:55:27,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:55:27,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2019-10-07 12:55:27,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:27,476 INFO L225 Difference]: With dead ends: 1233 [2019-10-07 12:55:27,476 INFO L226 Difference]: Without dead ends: 726 [2019-10-07 12:55:27,478 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:55:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-10-07 12:55:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 708. [2019-10-07 12:55:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-07 12:55:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 852 transitions. [2019-10-07 12:55:27,516 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 852 transitions. Word has length 66 [2019-10-07 12:55:27,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:27,516 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 852 transitions. [2019-10-07 12:55:27,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:55:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 852 transitions. [2019-10-07 12:55:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 12:55:27,518 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:27,519 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:27,519 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:27,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2013370123, now seen corresponding path program 1 times [2019-10-07 12:55:27,520 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:27,520 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:27,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:27,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 12:55:27,646 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:27,646 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:55:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:55:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:27,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 12:55:27,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:55:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 12:55:28,046 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:55:28,169 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 12:55:28,169 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:55:28,169 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [9] total 13 [2019-10-07 12:55:28,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 12:55:28,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 12:55:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-07 12:55:28,171 INFO L87 Difference]: Start difference. First operand 708 states and 852 transitions. Second operand 6 states. [2019-10-07 12:55:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:55:28,258 INFO L93 Difference]: Finished difference Result 1398 states and 1686 transitions. [2019-10-07 12:55:28,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:55:28,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-10-07 12:55:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:55:28,264 INFO L225 Difference]: With dead ends: 1398 [2019-10-07 12:55:28,264 INFO L226 Difference]: Without dead ends: 710 [2019-10-07 12:55:28,267 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 12:55:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-07 12:55:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2019-10-07 12:55:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-10-07 12:55:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 854 transitions. [2019-10-07 12:55:28,312 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 854 transitions. Word has length 78 [2019-10-07 12:55:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:55:28,312 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 854 transitions. [2019-10-07 12:55:28,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 12:55:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 854 transitions. [2019-10-07 12:55:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 12:55:28,314 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:55:28,314 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 12:55:28,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:55:28,520 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:55:28,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:55:28,520 INFO L82 PathProgramCache]: Analyzing trace with hash 109587541, now seen corresponding path program 1 times [2019-10-07 12:55:28,521 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:55:28,521 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:28,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:28,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:55:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:55:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 12:55:28,654 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:55:28,654 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:55:28,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:55:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:55:28,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 12:55:28,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:55:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 12:55:29,049 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:55:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 12:55:29,211 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 12:55:29,240 INFO L162 IcfgInterpreter]: Started Sifa with 64 locations of interest [2019-10-07 12:55:29,241 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 12:55:29,251 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 12:55:29,261 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 12:55:29,262 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 12:55:30,064 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 12:55:30,837 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 418 [2019-10-07 12:55:31,078 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:31,274 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:31,434 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:31,661 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,058 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 518 DAG size of output: 516 [2019-10-07 12:55:32,236 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,442 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,647 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,806 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,936 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-10-07 12:55:32,951 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 193 for LOIs [2019-10-07 12:55:33,246 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 520 [2019-10-07 12:55:33,247 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 536 for LOIs [2019-10-07 12:55:33,451 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 536 [2019-10-07 12:55:33,687 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 536 [2019-10-07 12:55:33,927 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 586 [2019-10-07 12:55:34,065 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 12:55:34,174 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-07 12:55:34,386 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:35,497 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:35,756 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 794 [2019-10-07 12:55:36,246 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 791 [2019-10-07 12:55:36,385 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:36,530 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:36,737 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:37,752 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:38,019 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 744 [2019-10-07 12:55:38,521 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 741 [2019-10-07 12:55:38,772 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 544 [2019-10-07 12:55:38,879 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:39,060 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:39,183 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:39,478 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:39,685 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:39,859 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:40,223 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:40,367 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:40,473 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:40,638 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:40,997 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:41,386 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:41,741 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:42,098 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:42,205 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:42,349 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-07 12:55:42,515 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:42,867 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:43,220 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 598 [2019-10-07 12:55:43,408 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:43,568 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:43,743 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:44,693 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:44,905 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 637 [2019-10-07 12:55:45,344 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 12:55:45,580 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 12:55:45,815 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:45,959 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:46,133 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:47,052 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:47,275 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 637 [2019-10-07 12:55:47,594 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 12:55:47,788 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 12:55:48,076 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 605 [2019-10-07 12:55:48,218 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:48,395 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:48,535 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:48,676 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:48,848 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:49,798 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:49,969 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 12:55:50,319 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 12:55:50,530 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2019-10-07 12:55:50,911 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:51,074 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:51,248 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 12:55:52,176 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:52,346 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 650 [2019-10-07 12:55:52,679 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 12:55:52,881 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 640 [2019-10-07 12:55:53,135 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 609 [2019-10-07 12:55:53,281 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:53,674 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 12:55:54,158 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 609 [2019-10-07 12:55:54,304 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 12:55:54,488 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 12:55:54,646 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 595 [2019-10-07 12:55:54,782 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 595 [2019-10-07 12:55:54,957 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2019-10-07 12:55:55,253 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 608 [2019-10-07 12:55:55,630 WARN L191 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 607 [2019-10-07 12:55:56,192 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 623 DAG size of output: 619 [2019-10-07 12:55:57,110 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-10-07 12:55:57,267 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 12:55:57,568 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 628 [2019-10-07 12:55:57,834 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 623 [2019-10-07 12:55:58,301 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 551 [2019-10-07 12:55:58,864 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 12:55:59,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:55:59,079 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 12:55:59,085 INFO L168 Benchmark]: Toolchain (without parser) took 41101.25 ms. Allocated memory was 142.6 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 96.9 MB in the beginning and 345.1 MB in the end (delta: -248.2 MB). Peak memory consumption was 992.8 MB. Max. memory is 7.1 GB. [2019-10-07 12:55:59,086 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 12:55:59,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.95 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 96.5 MB in the beginning and 130.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:55:59,087 INFO L168 Benchmark]: Boogie Preprocessor took 227.75 ms. Allocated memory is still 202.4 MB. Free memory was 130.1 MB in the beginning and 118.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-07 12:55:59,087 INFO L168 Benchmark]: RCFGBuilder took 5329.83 ms. Allocated memory was 202.4 MB in the beginning and 381.2 MB in the end (delta: 178.8 MB). Free memory was 118.2 MB in the beginning and 334.3 MB in the end (delta: -216.0 MB). Peak memory consumption was 165.6 MB. Max. memory is 7.1 GB. [2019-10-07 12:55:59,087 INFO L168 Benchmark]: TraceAbstraction took 34223.45 ms. Allocated memory was 381.2 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 334.3 MB in the beginning and 345.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 991.6 MB. Max. memory is 7.1 GB. [2019-10-07 12:55:59,089 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory is still 118.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1315.95 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 96.5 MB in the beginning and 130.1 MB in the end (delta: -33.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 227.75 ms. Allocated memory is still 202.4 MB. Free memory was 130.1 MB in the beginning and 118.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5329.83 ms. Allocated memory was 202.4 MB in the beginning and 381.2 MB in the end (delta: 178.8 MB). Free memory was 118.2 MB in the beginning and 334.3 MB in the end (delta: -216.0 MB). Peak memory consumption was 165.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34223.45 ms. Allocated memory was 381.2 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 334.3 MB in the beginning and 345.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 991.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...