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 -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-f4eb214f-m [2019-10-13 19:10:29,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:10:29,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:10:29,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:10:29,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:10:29,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:10:30,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:10:30,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:10:30,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:10:30,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:10:30,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:10:30,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:10:30,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:10:30,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:10:30,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:10:30,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:10:30,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:10:30,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:10:30,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:10:30,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:10:30,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:10:30,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:10:30,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:10:30,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:10:30,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:10:30,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:10:30,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:10:30,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:10:30,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:10:30,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:10:30,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:10:30,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:10:30,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:10:30,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:10:30,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:10:30,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:10:30,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:10:30,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:10:30,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:10:30,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:10:30,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:10:30,036 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 [2019-10-13 19:10:30,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:10:30,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:10:30,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:10:30,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:10:30,051 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:10:30,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:10:30,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:10:30,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:10:30,053 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:10:30,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:10:30,053 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:10:30,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:10:30,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:10:30,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:10:30,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:10:30,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:10:30,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:10:30,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:10:30,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:10:30,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:10:30,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:10:30,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:10:30,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:10:30,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:10:30,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:10:30,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:10:30,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:10:30,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:10:30,396 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:10:30,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-13 19:10:30,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e7aa214/40549068935e4e6bb8de7367fd018226/FLAG99e98bd4b [2019-10-13 19:10:31,108 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:10:31,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-13 19:10:31,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e7aa214/40549068935e4e6bb8de7367fd018226/FLAG99e98bd4b [2019-10-13 19:10:31,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59e7aa214/40549068935e4e6bb8de7367fd018226 [2019-10-13 19:10:31,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:10:31,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:10:31,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:31,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:10:31,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:10:31,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:31" (1/1) ... [2019-10-13 19:10:31,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5510b8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:31, skipping insertion in model container [2019-10-13 19:10:31,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:31" (1/1) ... [2019-10-13 19:10:31,322 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:10:31,400 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:10:32,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:32,330 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:10:32,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:32,713 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:10:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32 WrapperNode [2019-10-13 19:10:32,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:32,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:10:32,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:10:32,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:10:32,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:32,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (1/1) ... [2019-10-13 19:10:33,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:10:33,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:10:33,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:10:33,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:10:33,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (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 [2019-10-13 19:10:33,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:10:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:10:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-13 19:10:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2019-10-13 19:10:33,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2019-10-13 19:10:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 19:10:33,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:10:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:10:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:10:33,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:10:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:10:33,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:10:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:10:33,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:10:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 19:10:33,083 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 19:10:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2019-10-13 19:10:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2019-10-13 19:10:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2019-10-13 19:10:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2019-10-13 19:10:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 19:10:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2019-10-13 19:10:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-10-13 19:10:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2019-10-13 19:10:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2019-10-13 19:10:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2019-10-13 19:10:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2019-10-13 19:10:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2019-10-13 19:10:33,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2019-10-13 19:10:33,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 19:10:33,091 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:10:33,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2019-10-13 19:10:33,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2019-10-13 19:10:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2019-10-13 19:10:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 19:10:33,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 19:10:33,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 19:10:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 19:10:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 19:10:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 19:10:33,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2019-10-13 19:10:33,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:10:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:10:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-13 19:10:33,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-13 19:10:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-13 19:10:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2019-10-13 19:10:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2019-10-13 19:10:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2019-10-13 19:10:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2019-10-13 19:10:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 19:10:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2019-10-13 19:10:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2019-10-13 19:10:33,101 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2019-10-13 19:10:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2019-10-13 19:10:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2019-10-13 19:10:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2019-10-13 19:10:33,102 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-10-13 19:10:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2019-10-13 19:10:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2019-10-13 19:10:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:10:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:10:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:10:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:10:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:10:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:10:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 19:10:33,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:10:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:10:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 19:10:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2019-10-13 19:10:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 19:10:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2019-10-13 19:10:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:10:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 19:10:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2019-10-13 19:10:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:10:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:10:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:10:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 19:10:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:10:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:10:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:10:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:10:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:10:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:10:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:10:33,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:10:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:10:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:10:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 19:10:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 19:10:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 19:10:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 19:10:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 19:10:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2019-10-13 19:10:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2019-10-13 19:10:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 19:10:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2019-10-13 19:10:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2019-10-13 19:10:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 19:10:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 19:10:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 19:10:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2019-10-13 19:10:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 19:10:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2019-10-13 19:10:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2019-10-13 19:10:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2019-10-13 19:10:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2019-10-13 19:10:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2019-10-13 19:10:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2019-10-13 19:10:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2019-10-13 19:10:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2019-10-13 19:10:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:10:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 19:10:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 19:10:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2019-10-13 19:10:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2019-10-13 19:10:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 19:10:33,128 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2019-10-13 19:10:33,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2019-10-13 19:10:33,130 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2019-10-13 19:10:33,131 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:10:33,132 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2019-10-13 19:10:33,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:10:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2019-10-13 19:10:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2019-10-13 19:10:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2019-10-13 19:10:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2019-10-13 19:10:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-13 19:10:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2019-10-13 19:10:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:10:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:10:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:10:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:10:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:10:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:10:33,823 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:10:38,577 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:10:38,577 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 19:10:38,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:38 BoogieIcfgContainer [2019-10-13 19:10:38,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:10:38,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:10:38,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:10:38,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:10:38,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:31" (1/3) ... [2019-10-13 19:10:38,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b394bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:38, skipping insertion in model container [2019-10-13 19:10:38,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:32" (2/3) ... [2019-10-13 19:10:38,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b394bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:38, skipping insertion in model container [2019-10-13 19:10:38,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:38" (3/3) ... [2019-10-13 19:10:38,588 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-13 19:10:38,598 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:10:38,609 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:10:38,622 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:10:38,666 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:10:38,667 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:10:38,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:10:38,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:10:38,667 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:10:38,668 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:10:38,668 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:10:38,668 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:10:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2019-10-13 19:10:38,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 19:10:38,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:38,752 INFO L380 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, 1, 1, 1, 1] [2019-10-13 19:10:38,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:38,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:38,762 INFO L82 PathProgramCache]: Analyzing trace with hash -831317850, now seen corresponding path program 1 times [2019-10-13 19:10:38,775 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:38,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363773941] [2019-10-13 19:10:38,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:38,776 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:38,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,636 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:10:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:10:39,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363773941] [2019-10-13 19:10:39,864 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:10:39,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:10:39,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489729443] [2019-10-13 19:10:39,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:10:39,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:39,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:10:39,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:10:39,890 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 6 states. [2019-10-13 19:10:40,289 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:10:40,781 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:10:41,213 WARN L191 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-13 19:10:44,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:10:44,381 INFO L93 Difference]: Finished difference Result 921 states and 1207 transitions. [2019-10-13 19:10:44,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:10:44,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-10-13 19:10:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:10:44,405 INFO L225 Difference]: With dead ends: 921 [2019-10-13 19:10:44,405 INFO L226 Difference]: Without dead ends: 421 [2019-10-13 19:10:44,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:10:44,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-13 19:10:44,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 331. [2019-10-13 19:10:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2019-10-13 19:10:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 401 transitions. [2019-10-13 19:10:44,546 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 401 transitions. Word has length 47 [2019-10-13 19:10:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:10:44,546 INFO L462 AbstractCegarLoop]: Abstraction has 331 states and 401 transitions. [2019-10-13 19:10:44,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:10:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 401 transitions. [2019-10-13 19:10:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:10:44,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:44,551 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:10:44,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1475112585, now seen corresponding path program 1 times [2019-10-13 19:10:44,553 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:44,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226543845] [2019-10-13 19:10:44,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:44,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:44,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,072 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:10:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 19:10:45,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226543845] [2019-10-13 19:10:45,224 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:10:45,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:10:45,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679980663] [2019-10-13 19:10:45,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:10:45,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:45,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:10:45,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:10:45,227 INFO L87 Difference]: Start difference. First operand 331 states and 401 transitions. Second operand 8 states. [2019-10-13 19:10:45,540 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:10:45,939 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:10:46,332 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-13 19:10:46,977 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-13 19:10:47,339 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-13 19:10:47,789 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-13 19:10:48,910 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-13 19:10:54,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:10:54,240 INFO L93 Difference]: Finished difference Result 1124 states and 1455 transitions. [2019-10-13 19:10:54,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:10:54,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-10-13 19:10:54,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:10:54,252 INFO L225 Difference]: With dead ends: 1124 [2019-10-13 19:10:54,253 INFO L226 Difference]: Without dead ends: 810 [2019-10-13 19:10:54,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:10:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-13 19:10:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 651. [2019-10-13 19:10:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2019-10-13 19:10:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 796 transitions. [2019-10-13 19:10:54,389 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 796 transitions. Word has length 70 [2019-10-13 19:10:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:10:54,390 INFO L462 AbstractCegarLoop]: Abstraction has 651 states and 796 transitions. [2019-10-13 19:10:54,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:10:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 796 transitions. [2019-10-13 19:10:54,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 19:10:54,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:54,394 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:10:54,395 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:54,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:54,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1184897628, now seen corresponding path program 1 times [2019-10-13 19:10:54,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:54,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226440406] [2019-10-13 19:10:54,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:54,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:54,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:10:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,772 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:10:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:10:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 19:10:54,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226440406] [2019-10-13 19:10:54,973 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:10:54,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:10:54,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372554100] [2019-10-13 19:10:54,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:10:54,976 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:10:54,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:10:54,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:10:54,978 INFO L87 Difference]: Start difference. First operand 651 states and 796 transitions. Second operand 8 states. [2019-10-13 19:10:55,352 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:10:55,819 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:10:56,191 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-13 19:10:56,834 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-13 19:10:57,209 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-13 19:10:57,577 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-13 19:11:00,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:00,916 INFO L93 Difference]: Finished difference Result 1443 states and 1855 transitions. [2019-10-13 19:11:00,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:11:00,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2019-10-13 19:11:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:00,924 INFO L225 Difference]: With dead ends: 1443 [2019-10-13 19:11:00,924 INFO L226 Difference]: Without dead ends: 809 [2019-10-13 19:11:00,927 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:11:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2019-10-13 19:11:01,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 655. [2019-10-13 19:11:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-13 19:11:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 796 transitions. [2019-10-13 19:11:01,049 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 796 transitions. Word has length 71 [2019-10-13 19:11:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:01,050 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 796 transitions. [2019-10-13 19:11:01,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:11:01,050 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 796 transitions. [2019-10-13 19:11:01,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-13 19:11:01,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:01,053 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:01,053 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:01,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1836309482, now seen corresponding path program 1 times [2019-10-13 19:11:01,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:01,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718448748] [2019-10-13 19:11:01,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:01,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:01,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,390 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:11:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 19:11:01,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718448748] [2019-10-13 19:11:01,504 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:01,504 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:11:01,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536885046] [2019-10-13 19:11:01,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:11:01,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:01,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:11:01,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:11:01,507 INFO L87 Difference]: Start difference. First operand 655 states and 796 transitions. Second operand 6 states. [2019-10-13 19:11:01,807 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:02,194 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:11:02,535 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-13 19:11:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:06,352 INFO L93 Difference]: Finished difference Result 1741 states and 2205 transitions. [2019-10-13 19:11:06,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:11:06,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-10-13 19:11:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:06,361 INFO L225 Difference]: With dead ends: 1741 [2019-10-13 19:11:06,361 INFO L226 Difference]: Without dead ends: 1103 [2019-10-13 19:11:06,364 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:11:06,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2019-10-13 19:11:06,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 905. [2019-10-13 19:11:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2019-10-13 19:11:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1100 transitions. [2019-10-13 19:11:06,509 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1100 transitions. Word has length 68 [2019-10-13 19:11:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:06,509 INFO L462 AbstractCegarLoop]: Abstraction has 905 states and 1100 transitions. [2019-10-13 19:11:06,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:11:06,510 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1100 transitions. [2019-10-13 19:11:06,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 19:11:06,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:06,512 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:11:06,512 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:06,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1790903156, now seen corresponding path program 1 times [2019-10-13 19:11:06,513 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:06,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410310324] [2019-10-13 19:11:06,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:06,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:06,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,854 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:11:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:06,965 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 19:11:06,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410310324] [2019-10-13 19:11:06,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:06,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:11:06,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638654909] [2019-10-13 19:11:06,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:11:06,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:06,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:11:06,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:11:06,969 INFO L87 Difference]: Start difference. First operand 905 states and 1100 transitions. Second operand 8 states. [2019-10-13 19:11:07,279 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-13 19:11:07,627 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-13 19:11:07,976 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-13 19:11:08,559 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 206