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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.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 0.1.24-112bae1 [2019-09-10 11:31:16,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:31:16,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:31:16,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:31:16,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:31:16,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:31:16,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:31:16,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:31:16,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:31:16,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:31:16,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:31:16,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:31:16,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:31:16,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:31:16,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:31:16,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:31:16,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:31:16,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:31:16,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:31:16,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:31:16,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:31:16,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:31:16,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:31:16,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:31:16,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:31:16,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:31:16,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:31:16,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:31:16,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:31:16,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:31:16,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:31:16,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:31:16,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:31:16,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:31:16,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:31:16,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:31:16,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:31:16,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:31:16,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:31:16,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:31:16,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:31:16,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 11:31:16,118 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:31:16,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:31:16,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:31:16,119 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:31:16,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:31:16,120 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:31:16,120 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:31:16,120 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:31:16,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:31:16,120 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:31:16,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:31:16,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:31:16,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:31:16,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:31:16,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:31:16,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:31:16,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:31:16,122 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:31:16,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:31:16,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:31:16,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:31:16,123 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:31:16,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:31:16,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:31:16,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:31:16,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:31:16,124 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:31:16,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:31:16,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:31:16,125 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:31:16,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:31:16,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:31:16,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:31:16,175 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:31:16,175 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:31:16,176 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-09-10 11:31:16,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567956650/19d1deff310a4b98b46abacfa2806e11/FLAG825771fa3 [2019-09-10 11:31:16,952 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:31:16,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-09-10 11:31:16,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567956650/19d1deff310a4b98b46abacfa2806e11/FLAG825771fa3 [2019-09-10 11:31:17,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567956650/19d1deff310a4b98b46abacfa2806e11 [2019-09-10 11:31:17,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:31:17,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:31:17,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:31:17,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:31:17,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:31:17,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:31:17" (1/1) ... [2019-09-10 11:31:17,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780b3015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:17, skipping insertion in model container [2019-09-10 11:31:17,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:31:17" (1/1) ... [2019-09-10 11:31:17,120 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:31:17,216 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:31:18,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:31:18,253 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:31:18,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:31:18,560 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:31:18,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18 WrapperNode [2019-09-10 11:31:18,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:31:18,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:31:18,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:31:18,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:31:18,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (1/1) ... [2019-09-10 11:31:18,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:31:18,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:31:18,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:31:18,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:31:18,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (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 [2019-09-10 11:31:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:31:18,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:31:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-09-10 11:31:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2019-09-10 11:31:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2019-09-10 11:31:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:31:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:31:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:31:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 11:31:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-10 11:31:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-09-10 11:31:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2019-09-10 11:31:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2019-09-10 11:31:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2019-09-10 11:31:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2019-09-10 11:31:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2019-09-10 11:31:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2019-09-10 11:31:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2019-09-10 11:31:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2019-09-10 11:31:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2019-09-10 11:31:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2019-09-10 11:31:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2019-09-10 11:31:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2019-09-10 11:31:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2019-09-10 11:31:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2019-09-10 11:31:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2019-09-10 11:31:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-09-10 11:31:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-10 11:31:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2019-09-10 11:31:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2019-09-10 11:31:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2019-09-10 11:31:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 11:31:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 11:31:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 11:31:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-09-10 11:31:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2019-09-10 11:31:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-09-10 11:31:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2019-09-10 11:31:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-09-10 11:31:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2019-09-10 11:31:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2019-09-10 11:31:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:31:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:31:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:31:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:31:18,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-09-10 11:31:18,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:31:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:31:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:31:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:31:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-10 11:31:18,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2019-09-10 11:31:18,866 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:31:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:31:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:31:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 11:31:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:31:18,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:31:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:31:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:31:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:31:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:31:18,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:31:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:31:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:31:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:31:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-10 11:31:18,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-09-10 11:31:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-09-10 11:31:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-09-10 11:31:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-09-10 11:31:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2019-09-10 11:31:18,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2019-09-10 11:31:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-09-10 11:31:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2019-09-10 11:31:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2019-09-10 11:31:18,871 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-09-10 11:31:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-09-10 11:31:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-09-10 11:31:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2019-09-10 11:31:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-09-10 11:31:18,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2019-09-10 11:31:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2019-09-10 11:31:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2019-09-10 11:31:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2019-09-10 11:31:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2019-09-10 11:31:18,873 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2019-09-10 11:31:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2019-09-10 11:31:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2019-09-10 11:31:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:31:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-09-10 11:31:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-09-10 11:31:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2019-09-10 11:31:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2019-09-10 11:31:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-09-10 11:31:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-10 11:31:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-10 11:31:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-10 11:31:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-09-10 11:31:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-09-10 11:31:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-10 11:31:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-10 11:31:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2019-09-10 11:31:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2019-09-10 11:31:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2019-09-10 11:31:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2019-09-10 11:31:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2019-09-10 11:31:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2019-09-10 11:31:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2019-09-10 11:31:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2019-09-10 11:31:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2019-09-10 11:31:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2019-09-10 11:31:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2019-09-10 11:31:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2019-09-10 11:31:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2019-09-10 11:31:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2019-09-10 11:31:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:31:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2019-09-10 11:31:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2019-09-10 11:31:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:31:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:31:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2019-09-10 11:31:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2019-09-10 11:31:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2019-09-10 11:31:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2019-09-10 11:31:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2019-09-10 11:31:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2019-09-10 11:31:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:31:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2019-09-10 11:31:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2019-09-10 11:31:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2019-09-10 11:31:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2019-09-10 11:31:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2019-09-10 11:31:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2019-09-10 11:31:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:31:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:31:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-09-10 11:31:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-09-10 11:31:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-09-10 11:31:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:31:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:31:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 11:31:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 11:31:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2019-09-10 11:31:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:31:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:31:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:31:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:31:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:31:18,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:31:19,741 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:31:24,396 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:31:24,397 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 11:31:24,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:31:24 BoogieIcfgContainer [2019-09-10 11:31:24,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:31:24,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:31:24,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:31:24,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:31:24,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:31:17" (1/3) ... [2019-09-10 11:31:24,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef18969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:31:24, skipping insertion in model container [2019-09-10 11:31:24,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:31:18" (2/3) ... [2019-09-10 11:31:24,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef18969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:31:24, skipping insertion in model container [2019-09-10 11:31:24,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:31:24" (3/3) ... [2019-09-10 11:31:24,407 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2019-09-10 11:31:24,417 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:31:24,434 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:31:24,451 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:31:24,474 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:31:24,475 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:31:24,475 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:31:24,475 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:31:24,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:31:24,475 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:31:24,475 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:31:24,475 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:31:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states. [2019-09-10 11:31:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 11:31:24,525 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:24,526 INFO L399 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] [2019-09-10 11:31:24,528 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1054970132, now seen corresponding path program 1 times [2019-09-10 11:31:24,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:24,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:24,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:24,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:24,607 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 11:31:24,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:24,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:31:24,971 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:24,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:31:24,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:31:24,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:31:24,996 INFO L87 Difference]: Start difference. First operand 632 states. Second operand 3 states. [2019-09-10 11:31:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:25,070 INFO L93 Difference]: Finished difference Result 354 states and 431 transitions. [2019-09-10 11:31:25,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:31:25,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 11:31:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:25,101 INFO L225 Difference]: With dead ends: 354 [2019-09-10 11:31:25,101 INFO L226 Difference]: Without dead ends: 332 [2019-09-10 11:31:25,105 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:31:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-09-10 11:31:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-09-10 11:31:25,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-09-10 11:31:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 403 transitions. [2019-09-10 11:31:25,216 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 403 transitions. Word has length 47 [2019-09-10 11:31:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:25,218 INFO L475 AbstractCegarLoop]: Abstraction has 332 states and 403 transitions. [2019-09-10 11:31:25,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:31:25,219 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 403 transitions. [2019-09-10 11:31:25,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 11:31:25,224 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:25,225 INFO L399 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] [2019-09-10 11:31:25,225 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:25,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1407787280, now seen corresponding path program 1 times [2019-09-10 11:31:25,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:25,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:25,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:25,230 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:31:25,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:25,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:31:25,405 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:25,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:31:25,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:31:25,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:31:25,408 INFO L87 Difference]: Start difference. First operand 332 states and 403 transitions. Second operand 3 states. [2019-09-10 11:31:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:25,509 INFO L93 Difference]: Finished difference Result 462 states and 561 transitions. [2019-09-10 11:31:25,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:31:25,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 11:31:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:25,514 INFO L225 Difference]: With dead ends: 462 [2019-09-10 11:31:25,514 INFO L226 Difference]: Without dead ends: 462 [2019-09-10 11:31:25,515 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:31:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2019-09-10 11:31:25,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 459. [2019-09-10 11:31:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-09-10 11:31:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 559 transitions. [2019-09-10 11:31:25,543 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 559 transitions. Word has length 68 [2019-09-10 11:31:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:25,544 INFO L475 AbstractCegarLoop]: Abstraction has 459 states and 559 transitions. [2019-09-10 11:31:25,544 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:31:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 559 transitions. [2019-09-10 11:31:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 11:31:25,548 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:25,548 INFO L399 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] [2019-09-10 11:31:25,548 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:25,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1595392143, now seen corresponding path program 1 times [2019-09-10 11:31:25,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:25,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:25,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:25,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:25,553 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:31:25,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:25,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:31:25,719 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:25,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:31:25,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:31:25,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:31:25,720 INFO L87 Difference]: Start difference. First operand 459 states and 559 transitions. Second operand 5 states. [2019-09-10 11:31:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:25,905 INFO L93 Difference]: Finished difference Result 913 states and 1124 transitions. [2019-09-10 11:31:25,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 11:31:25,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 11:31:25,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:25,923 INFO L225 Difference]: With dead ends: 913 [2019-09-10 11:31:25,923 INFO L226 Difference]: Without dead ends: 913 [2019-09-10 11:31:25,924 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 11:31:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2019-09-10 11:31:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 890. [2019-09-10 11:31:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2019-09-10 11:31:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1092 transitions. [2019-09-10 11:31:25,998 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1092 transitions. Word has length 70 [2019-09-10 11:31:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:25,999 INFO L475 AbstractCegarLoop]: Abstraction has 890 states and 1092 transitions. [2019-09-10 11:31:25,999 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:31:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1092 transitions. [2019-09-10 11:31:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 11:31:26,009 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:26,010 INFO L399 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] [2019-09-10 11:31:26,010 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:26,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1725664656, now seen corresponding path program 1 times [2019-09-10 11:31:26,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:26,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:26,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,017 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:31:26,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:26,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:31:26,126 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:26,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:31:26,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:31:26,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:31:26,128 INFO L87 Difference]: Start difference. First operand 890 states and 1092 transitions. Second operand 5 states. [2019-09-10 11:31:26,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:26,230 INFO L93 Difference]: Finished difference Result 922 states and 1124 transitions. [2019-09-10 11:31:26,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 11:31:26,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-10 11:31:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:26,239 INFO L225 Difference]: With dead ends: 922 [2019-09-10 11:31:26,239 INFO L226 Difference]: Without dead ends: 922 [2019-09-10 11:31:26,241 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 11:31:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2019-09-10 11:31:26,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 898. [2019-09-10 11:31:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2019-09-10 11:31:26,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1094 transitions. [2019-09-10 11:31:26,291 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1094 transitions. Word has length 71 [2019-09-10 11:31:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:26,292 INFO L475 AbstractCegarLoop]: Abstraction has 898 states and 1094 transitions. [2019-09-10 11:31:26,292 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:31:26,292 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1094 transitions. [2019-09-10 11:31:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-10 11:31:26,295 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:26,295 INFO L399 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] [2019-09-10 11:31:26,296 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:26,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1099926446, now seen corresponding path program 1 times [2019-09-10 11:31:26,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:26,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:26,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:31:26,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:26,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:31:26,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:26,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:31:26,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:31:26,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:31:26,426 INFO L87 Difference]: Start difference. First operand 898 states and 1094 transitions. Second operand 5 states. [2019-09-10 11:31:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:26,504 INFO L93 Difference]: Finished difference Result 930 states and 1122 transitions. [2019-09-10 11:31:26,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 11:31:26,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-09-10 11:31:26,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:26,510 INFO L225 Difference]: With dead ends: 930 [2019-09-10 11:31:26,511 INFO L226 Difference]: Without dead ends: 930 [2019-09-10 11:31:26,511 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 11:31:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2019-09-10 11:31:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 906. [2019-09-10 11:31:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 906 states. [2019-09-10 11:31:26,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1096 transitions. [2019-09-10 11:31:26,544 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1096 transitions. Word has length 72 [2019-09-10 11:31:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:26,545 INFO L475 AbstractCegarLoop]: Abstraction has 906 states and 1096 transitions. [2019-09-10 11:31:26,545 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:31:26,545 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1096 transitions. [2019-09-10 11:31:26,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 11:31:26,549 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:26,549 INFO L399 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, 1] [2019-09-10 11:31:26,550 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:26,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1068009101, now seen corresponding path program 1 times [2019-09-10 11:31:26,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:26,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,555 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:31:26,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:31:26,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:31:26,698 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:26,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:31:26,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:31:26,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:31:26,699 INFO L87 Difference]: Start difference. First operand 906 states and 1096 transitions. Second operand 5 states. [2019-09-10 11:31:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:26,796 INFO L93 Difference]: Finished difference Result 833 states and 998 transitions. [2019-09-10 11:31:26,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 11:31:26,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-09-10 11:31:26,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:26,802 INFO L225 Difference]: With dead ends: 833 [2019-09-10 11:31:26,803 INFO L226 Difference]: Without dead ends: 833 [2019-09-10 11:31:26,803 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 11:31:26,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-09-10 11:31:26,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 815. [2019-09-10 11:31:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2019-09-10 11:31:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 980 transitions. [2019-09-10 11:31:26,837 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 980 transitions. Word has length 73 [2019-09-10 11:31:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:26,837 INFO L475 AbstractCegarLoop]: Abstraction has 815 states and 980 transitions. [2019-09-10 11:31:26,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:31:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 980 transitions. [2019-09-10 11:31:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 11:31:26,841 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:31:26,841 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:31:26,841 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:31:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1305699994, now seen corresponding path program 1 times [2019-09-10 11:31:26,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:31:26,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:31:26,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:31:26,849 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:31:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:31:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-10 11:31:27,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:31:27,081 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:31:27,086 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 86 with the following transitions: [2019-09-10 11:31:27,098 INFO L207 CegarAbsIntRunner]: [21], [23], [24], [34], [43], [44], [216], [243], [271], [277], [278], [316], [317], [323], [324], [339], [341], [344], [346], [349], [352], [722], [724], [727], [729], [751], [754], [757], [760], [776], [778], [779], [853], [856], [858], [891], [894], [896], [907], [912], [914], [938], [941], [945], [1072], [1073], [1130], [1154], [1155], [1156], [1157], [1158], [1159], [1160], [1161], [1222], [1223], [1224], [1225], [1226], [1232], [1270], [1271], [1280], [1281], [1284], [1285], [1340], [1341], [1342] [2019-09-10 11:31:27,149 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:31:27,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:31:27,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:31:27,238 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 103 root evaluator evaluations with a maximum evaluation depth of 0. Performed 103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 160 variables. [2019-09-10 11:31:27,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:31:27,243 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:31:27,290 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:31:27,291 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:31:27,294 INFO L420 sIntCurrentIteration]: We unified 84 AI predicates to 84 [2019-09-10 11:31:27,294 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:31:27,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:31:27,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-10 11:31:27,296 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:31:27,296 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:31:27,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:31:27,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:31:27,297 INFO L87 Difference]: Start difference. First operand 815 states and 980 transitions. Second operand 2 states. [2019-09-10 11:31:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:31:27,297 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:31:27,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:31:27,297 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 85 [2019-09-10 11:31:27,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:31:27,298 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:31:27,298 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:31:27,298 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:31:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:31:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:31:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:31:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:31:27,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2019-09-10 11:31:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:31:27,300 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:31:27,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:31:27,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:31:27,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:31:27,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:31:27 BoogieIcfgContainer [2019-09-10 11:31:27,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:31:27,309 INFO L168 Benchmark]: Toolchain (without parser) took 10206.63 ms. Allocated memory was 132.1 MB in the beginning and 457.7 MB in the end (delta: 325.6 MB). Free memory was 82.6 MB in the beginning and 319.2 MB in the end (delta: -236.6 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,310 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1457.78 ms. Allocated memory was 132.1 MB in the beginning and 201.9 MB in the end (delta: 69.7 MB). Free memory was 82.2 MB in the beginning and 126.8 MB in the end (delta: -44.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,312 INFO L168 Benchmark]: Boogie Preprocessor took 205.51 ms. Allocated memory is still 201.9 MB. Free memory was 126.8 MB in the beginning and 117.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,313 INFO L168 Benchmark]: RCFGBuilder took 5631.61 ms. Allocated memory was 201.9 MB in the beginning and 369.6 MB in the end (delta: 167.8 MB). Free memory was 116.6 MB in the beginning and 278.1 MB in the end (delta: -161.4 MB). Peak memory consumption was 219.6 MB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,314 INFO L168 Benchmark]: TraceAbstraction took 2906.20 ms. Allocated memory was 369.6 MB in the beginning and 457.7 MB in the end (delta: 88.1 MB). Free memory was 278.1 MB in the beginning and 319.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2019-09-10 11:31:27,318 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1457.78 ms. Allocated memory was 132.1 MB in the beginning and 201.9 MB in the end (delta: 69.7 MB). Free memory was 82.2 MB in the beginning and 126.8 MB in the end (delta: -44.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 205.51 ms. Allocated memory is still 201.9 MB. Free memory was 126.8 MB in the beginning and 117.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5631.61 ms. Allocated memory was 201.9 MB in the beginning and 369.6 MB in the end (delta: 167.8 MB). Free memory was 116.6 MB in the beginning and 278.1 MB in the end (delta: -161.4 MB). Peak memory consumption was 219.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2906.20 ms. Allocated memory was 369.6 MB in the beginning and 457.7 MB in the end (delta: 88.1 MB). Free memory was 278.1 MB in the beginning and 319.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 96 procedures, 672 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2516 SDtfs, 2157 SDslu, 4019 SDs, 0 SdLazy, 118 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=906occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.607142857142857 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 92 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 51195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 53/57 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...