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 0.1.24-13a467a-m [2019-10-14 23:09:30,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:09:30,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:09:30,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:09:30,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:09:30,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:09:30,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:09:30,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:09:30,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:09:30,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:09:30,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:09:30,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:09:30,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:09:30,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:09:30,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:09:30,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:09:30,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:09:30,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:09:30,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:09:30,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:09:30,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:09:30,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:09:30,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:09:30,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:09:30,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:09:30,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:09:30,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:09:30,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:09:30,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:09:30,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:09:30,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:09:30,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:09:30,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:09:30,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:09:30,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:09:30,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:09:30,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:09:30,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:09:30,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:09:30,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:09:30,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:09:30,744 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 [2019-10-14 23:09:30,757 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:09:30,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:09:30,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:09:30,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:09:30,759 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:09:30,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:09:30,760 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:09:30,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:09:30,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:09:30,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:09:30,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:09:30,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:09:30,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:09:30,761 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:09:30,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:09:30,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:09:30,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:09:30,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:09:30,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:09:30,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:09:30,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:09:30,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:30,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:09:30,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:09:30,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:09:30,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:09:30,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:09:30,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:09:30,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:09:31,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:09:31,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:09:31,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:09:31,067 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:09:31,067 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:09:31,068 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-14 23:09:31,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/306c624ec/81c395db7cd04c25a5f713cb851c5e8c/FLAGb268bf2aa [2019-10-14 23:09:31,825 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:09:31,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-14 23:09:31,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/306c624ec/81c395db7cd04c25a5f713cb851c5e8c/FLAGb268bf2aa [2019-10-14 23:09:31,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/306c624ec/81c395db7cd04c25a5f713cb851c5e8c [2019-10-14 23:09:31,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:09:31,920 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:09:31,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:31,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:09:31,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:09:31,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:31" (1/1) ... [2019-10-14 23:09:31,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b268c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:31, skipping insertion in model container [2019-10-14 23:09:31,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:31" (1/1) ... [2019-10-14 23:09:31,935 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:09:32,001 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:09:32,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:32,951 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:09:33,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:33,206 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:09:33,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33 WrapperNode [2019-10-14 23:09:33,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:33,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:09:33,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:09:33,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:09:33,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (1/1) ... [2019-10-14 23:09:33,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:09:33,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:09:33,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:09:33,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:09:33,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (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 [2019-10-14 23:09:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:09:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:09:33,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-14 23:09:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2019-10-14 23:09:33,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2019-10-14 23:09:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-14 23:09:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:09:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:09:33,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:09:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:09:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:09:33,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:09:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:09:33,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 23:09:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 23:09:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-14 23:09:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2019-10-14 23:09:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2019-10-14 23:09:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2019-10-14 23:09:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2019-10-14 23:09:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-14 23:09:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2019-10-14 23:09:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-10-14 23:09:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2019-10-14 23:09:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2019-10-14 23:09:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-14 23:09:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-14 23:09:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 23:09:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-14 23:09:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-14 23:09:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-14 23:09:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2019-10-14 23:09:33,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-14 23:09:33,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2019-10-14 23:09:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:09:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:09:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-14 23:09:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-14 23:09:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-14 23:09:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2019-10-14 23:09:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2019-10-14 23:09:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2019-10-14 23:09:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2019-10-14 23:09:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-14 23:09:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2019-10-14 23:09:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2019-10-14 23:09:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2019-10-14 23:09:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2019-10-14 23:09:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2019-10-14 23:09:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2019-10-14 23:09:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-10-14 23:09:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2019-10-14 23:09:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2019-10-14 23:09:33,540 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:09:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:09:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:09:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:09:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:09:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 23:09:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:09:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:09:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-14 23:09:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2019-10-14 23:09:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:09:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:09:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:09:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:09:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:09:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:09:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:09:33,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:09:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:09:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:09:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:09:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:09:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:09:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:09:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 23:09:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-14 23:09:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-14 23:09:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-14 23:09:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2019-10-14 23:09:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 23:09:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-14 23:09:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-14 23:09:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2019-10-14 23:09:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-14 23:09:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2019-10-14 23:09:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2019-10-14 23:09:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2019-10-14 23:09:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:09:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-14 23:09:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2019-10-14 23:09:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2019-10-14 23:09:33,566 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2019-10-14 23:09:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2019-10-14 23:09:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:09:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2019-10-14 23:09:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:09:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:09:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:09:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:09:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:09:34,237 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:09:38,461 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:09:38,461 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:09:38,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:38 BoogieIcfgContainer [2019-10-14 23:09:38,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:09:38,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:09:38,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:09:38,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:09:38,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:09:31" (1/3) ... [2019-10-14 23:09:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5971e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:38, skipping insertion in model container [2019-10-14 23:09:38,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:33" (2/3) ... [2019-10-14 23:09:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5971e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:38, skipping insertion in model container [2019-10-14 23:09:38,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:38" (3/3) ... [2019-10-14 23:09:38,475 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-10-14 23:09:38,484 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:09:38,497 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:09:38,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:09:38,549 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:09:38,550 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:09:38,550 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:09:38,550 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:09:38,550 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:09:38,550 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:09:38,550 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:09:38,551 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:09:38,601 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states. [2019-10-14 23:09:38,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 23:09:38,627 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:38,628 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] [2019-10-14 23:09:38,631 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash -831317850, now seen corresponding path program 1 times [2019-10-14 23:09:38,646 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:38,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527534765] [2019-10-14 23:09:38,647 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:38,647 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:38,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,567 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:09:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:09:39,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527534765] [2019-10-14 23:09:39,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:09:39,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:09:39,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023715664] [2019-10-14 23:09:39,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:09:39,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:09:39,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:09:39,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:09:39,719 INFO L87 Difference]: Start difference. First operand 631 states. Second operand 6 states. [2019-10-14 23:09:40,060 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:09:40,456 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:09:40,894 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-14 23:09:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:09:43,847 INFO L93 Difference]: Finished difference Result 921 states and 1207 transitions. [2019-10-14 23:09:43,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:09:43,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-10-14 23:09:43,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:09:43,870 INFO L225 Difference]: With dead ends: 921 [2019-10-14 23:09:43,871 INFO L226 Difference]: Without dead ends: 421 [2019-10-14 23:09:43,881 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:09:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-14 23:09:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 331. [2019-10-14 23:09:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2019-10-14 23:09:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 401 transitions. [2019-10-14 23:09:44,048 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 401 transitions. Word has length 47 [2019-10-14 23:09:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:09:44,049 INFO L462 AbstractCegarLoop]: Abstraction has 331 states and 401 transitions. [2019-10-14 23:09:44,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:09:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 401 transitions. [2019-10-14 23:09:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:09:44,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:44,054 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] [2019-10-14 23:09:44,054 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:44,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:44,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1475112585, now seen corresponding path program 1 times [2019-10-14 23:09:44,055 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:44,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161889119] [2019-10-14 23:09:44,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:44,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:44,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,459 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:09:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:44,673 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:09:44,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161889119] [2019-10-14 23:09:44,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:09:44,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:09:44,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651206800] [2019-10-14 23:09:44,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:09:44,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:09:44,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:09:44,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:09:44,680 INFO L87 Difference]: Start difference. First operand 331 states and 401 transitions. Second operand 8 states. [2019-10-14 23:09:45,002 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:09:45,422 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:09:45,839 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-14 23:09:46,543 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:09:46,908 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-14 23:09:47,377 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:09:48,574 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-14 23:09:54,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:09:54,161 INFO L93 Difference]: Finished difference Result 1124 states and 1455 transitions. [2019-10-14 23:09:54,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:09:54,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-10-14 23:09:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:09:54,170 INFO L225 Difference]: With dead ends: 1124 [2019-10-14 23:09:54,170 INFO L226 Difference]: Without dead ends: 810 [2019-10-14 23:09:54,173 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:09:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-14 23:09:54,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 651. [2019-10-14 23:09:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2019-10-14 23:09:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 796 transitions. [2019-10-14 23:09:54,309 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 796 transitions. Word has length 70 [2019-10-14 23:09:54,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:09:54,309 INFO L462 AbstractCegarLoop]: Abstraction has 651 states and 796 transitions. [2019-10-14 23:09:54,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:09:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 796 transitions. [2019-10-14 23:09:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-14 23:09:54,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:54,312 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] [2019-10-14 23:09:54,313 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:54,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1184897628, now seen corresponding path program 1 times [2019-10-14 23:09:54,313 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:54,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196125132] [2019-10-14 23:09:54,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:54,314 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:54,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,681 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:09:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:09:54,851 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:09:54,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196125132] [2019-10-14 23:09:54,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:09:54,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:09:54,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632852951] [2019-10-14 23:09:54,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:09:54,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:09:54,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:09:54,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:09:54,854 INFO L87 Difference]: Start difference. First operand 651 states and 796 transitions. Second operand 8 states. [2019-10-14 23:09:55,132 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:09:55,528 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:09:55,864 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-14 23:09:56,484 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:09:56,837 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:09:57,148 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-14 23:10:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:00,203 INFO L93 Difference]: Finished difference Result 1443 states and 1855 transitions. [2019-10-14 23:10:00,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:10:00,207 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2019-10-14 23:10:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:00,213 INFO L225 Difference]: With dead ends: 1443 [2019-10-14 23:10:00,214 INFO L226 Difference]: Without dead ends: 809 [2019-10-14 23:10:00,216 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:10:00,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2019-10-14 23:10:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 655. [2019-10-14 23:10:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-14 23:10:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 796 transitions. [2019-10-14 23:10:00,326 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 796 transitions. Word has length 71 [2019-10-14 23:10:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:00,374 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 796 transitions. [2019-10-14 23:10:00,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:10:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 796 transitions. [2019-10-14 23:10:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-14 23:10:00,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:00,377 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] [2019-10-14 23:10:00,377 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:00,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1790903156, now seen corresponding path program 1 times [2019-10-14 23:10:00,378 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:00,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238148471] [2019-10-14 23:10:00,379 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:00,379 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:00,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,776 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:10:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,917 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:10:00,918 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238148471] [2019-10-14 23:10:00,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:00,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:10:00,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794671453] [2019-10-14 23:10:00,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:10:00,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:00,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:10:00,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:10:00,924 INFO L87 Difference]: Start difference. First operand 655 states and 796 transitions. Second operand 8 states. [2019-10-14 23:10:01,301 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:01,666 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:10:02,010 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-14 23:10:02,636 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:10:02,934 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-10-14 23:10:03,338 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-14 23:10:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:06,430 INFO L93 Difference]: Finished difference Result 1450 states and 1850 transitions. [2019-10-14 23:10:06,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:10:06,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2019-10-14 23:10:06,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:06,435 INFO L225 Difference]: With dead ends: 1450 [2019-10-14 23:10:06,436 INFO L226 Difference]: Without dead ends: 812 [2019-10-14 23:10:06,438 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:10:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2019-10-14 23:10:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 659. [2019-10-14 23:10:06,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-10-14 23:10:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 796 transitions. [2019-10-14 23:10:06,547 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 796 transitions. Word has length 72 [2019-10-14 23:10:06,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:06,548 INFO L462 AbstractCegarLoop]: Abstraction has 659 states and 796 transitions. [2019-10-14 23:10:06,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:10:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 796 transitions. [2019-10-14 23:10:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-14 23:10:06,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:06,550 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] [2019-10-14 23:10:06,551 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:06,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:06,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1836309482, now seen corresponding path program 1 times [2019-10-14 23:10:06,551 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:06,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867437843] [2019-10-14 23:10:06,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:06,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:06,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,887 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:10:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:10:06,983 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867437843] [2019-10-14 23:10:06,983 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:06,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:10:06,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216479091] [2019-10-14 23:10:06,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:10:06,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:06,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:10:06,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:10:06,985 INFO L87 Difference]: Start difference. First operand 659 states and 796 transitions. Second operand 6 states. [2019-10-14 23:10:07,264 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:07,668 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:10:07,988 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 195