java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 06:20:12,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 06:20:12,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 06:20:12,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 06:20:12,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 06:20:12,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 06:20:12,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 06:20:12,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 06:20:12,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 06:20:12,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 06:20:12,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 06:20:12,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 06:20:12,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 06:20:12,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 06:20:12,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 06:20:12,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 06:20:12,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 06:20:12,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 06:20:12,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 06:20:12,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 06:20:12,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 06:20:12,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 06:20:12,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 06:20:12,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 06:20:12,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 06:20:12,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 06:20:12,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 06:20:12,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 06:20:12,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 06:20:12,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 06:20:12,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 06:20:12,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 06:20:12,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 06:20:12,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 06:20:12,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 06:20:12,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 06:20:12,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 06:20:12,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 06:20:12,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 06:20:12,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 06:20:12,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 06:20:12,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 06:20:12,962 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 06:20:12,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 06:20:12,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 06:20:12,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 06:20:12,965 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 06:20:12,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 06:20:12,965 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 06:20:12,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 06:20:12,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 06:20:12,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 06:20:12,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 06:20:12,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 06:20:12,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 06:20:12,967 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 06:20:12,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 06:20:12,967 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 06:20:12,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 06:20:12,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 06:20:12,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 06:20:12,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 06:20:12,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 06:20:12,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 06:20:12,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 06:20:12,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 06:20:12,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 06:20:12,969 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 06:20:12,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 06:20:12,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 06:20:12,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 06:20:13,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 06:20:13,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 06:20:13,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 06:20:13,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 06:20:13,310 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 06:20:13,311 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-07 06:20:13,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90fe18f/5bc05e5e1db647b995d365cf08ac4cfe/FLAG360b429c9 [2019-10-07 06:20:14,379 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 06:20:14,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-07 06:20:14,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90fe18f/5bc05e5e1db647b995d365cf08ac4cfe/FLAG360b429c9 [2019-10-07 06:20:14,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90fe18f/5bc05e5e1db647b995d365cf08ac4cfe [2019-10-07 06:20:14,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 06:20:14,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 06:20:14,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 06:20:14,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 06:20:14,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 06:20:14,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 06:20:14" (1/1) ... [2019-10-07 06:20:14,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4d736e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:14, skipping insertion in model container [2019-10-07 06:20:14,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 06:20:14" (1/1) ... [2019-10-07 06:20:14,902 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 06:20:15,060 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 06:20:16,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 06:20:16,825 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 06:20:17,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 06:20:17,373 INFO L192 MainTranslator]: Completed translation [2019-10-07 06:20:17,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17 WrapperNode [2019-10-07 06:20:17,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 06:20:17,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 06:20:17,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 06:20:17,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 06:20:17,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... [2019-10-07 06:20:17,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 06:20:17,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 06:20:17,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 06:20:17,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 06:20:17,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 06:20:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 06:20:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 06:20:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 06:20:17,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 06:20:17,901 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-07 06:20:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-07 06:20:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 06:20:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 06:20:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-07 06:20:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 06:20:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 06:20:17,907 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-07 06:20:17,907 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-07 06:20:17,908 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-07 06:20:17,909 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-07 06:20:17,909 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-07 06:20:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-07 06:20:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-07 06:20:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2019-10-07 06:20:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2019-10-07 06:20:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2019-10-07 06:20:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2019-10-07 06:20:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2019-10-07 06:20:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2019-10-07 06:20:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2019-10-07 06:20:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2019-10-07 06:20:17,915 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2019-10-07 06:20:17,916 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2019-10-07 06:20:17,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2019-10-07 06:20:17,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-07 06:20:17,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2019-10-07 06:20:17,916 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2019-10-07 06:20:17,917 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2019-10-07 06:20:17,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2019-10-07 06:20:17,917 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2019-10-07 06:20:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2019-10-07 06:20:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2019-10-07 06:20:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2019-10-07 06:20:17,918 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2019-10-07 06:20:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2019-10-07 06:20:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-07 06:20:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-07 06:20:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 06:20:17,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-07 06:20:17,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-07 06:20:17,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-07 06:20:17,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-07 06:20:17,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2019-10-07 06:20:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2019-10-07 06:20:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2019-10-07 06:20:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 06:20:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 06:20:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 06:20:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-07 06:20:17,923 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-07 06:20:17,923 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-07 06:20:17,924 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 06:20:17,924 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-07 06:20:17,924 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2019-10-07 06:20:17,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-07 06:20:17,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-07 06:20:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-07 06:20:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-07 06:20:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-07 06:20:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 06:20:17,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-07 06:20:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2019-10-07 06:20:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2019-10-07 06:20:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-07 06:20:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-07 06:20:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 06:20:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 06:20:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-07 06:20:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-07 06:20:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-07 06:20:17,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-10-07 06:20:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-07 06:20:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2019-10-07 06:20:17,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-07 06:20:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-07 06:20:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-07 06:20:17,932 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2019-10-07 06:20:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-07 06:20:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 06:20:17,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 06:20:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 06:20:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-07 06:20:17,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 06:20:17,935 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 06:20:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-07 06:20:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-07 06:20:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 06:20:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-07 06:20:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 06:20:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 06:20:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-07 06:20:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 06:20:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-07 06:20:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 06:20:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 06:20:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-07 06:20:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 06:20:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 06:20:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 06:20:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 06:20:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-07 06:20:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 06:20:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-07 06:20:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 06:20:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-07 06:20:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2019-10-07 06:20:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-07 06:20:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2019-10-07 06:20:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 06:20:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-07 06:20:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-07 06:20:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 06:20:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 06:20:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 06:20:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-07 06:20:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-07 06:20:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-07 06:20:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-07 06:20:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-07 06:20:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-07 06:20:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-07 06:20:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-07 06:20:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-07 06:20:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-07 06:20:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 06:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-10-07 06:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2019-10-07 06:20:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-07 06:20:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-07 06:20:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-07 06:20:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 06:20:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-07 06:20:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-07 06:20:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-07 06:20:17,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-07 06:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 06:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-07 06:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-07 06:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-07 06:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-07 06:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-07 06:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-07 06:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-07 06:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2019-10-07 06:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2019-10-07 06:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2019-10-07 06:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2019-10-07 06:20:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2019-10-07 06:20:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2019-10-07 06:20:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2019-10-07 06:20:17,975 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2019-10-07 06:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2019-10-07 06:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2019-10-07 06:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2019-10-07 06:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2019-10-07 06:20:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2019-10-07 06:20:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2019-10-07 06:20:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2019-10-07 06:20:17,977 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2019-10-07 06:20:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2019-10-07 06:20:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2019-10-07 06:20:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2019-10-07 06:20:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-07 06:20:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2019-10-07 06:20:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2019-10-07 06:20:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2019-10-07 06:20:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2019-10-07 06:20:17,979 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2019-10-07 06:20:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2019-10-07 06:20:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 06:20:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 06:20:17,980 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2019-10-07 06:20:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2019-10-07 06:20:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-07 06:20:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 06:20:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-07 06:20:17,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 06:20:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 06:20:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 06:20:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-07 06:20:17,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-07 06:20:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-07 06:20:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 06:20:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 06:20:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 06:20:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 06:20:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 06:20:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 06:20:17,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 06:20:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 06:20:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 06:20:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 06:20:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 06:20:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 06:20:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 06:20:20,588 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-07 06:20:27,796 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 06:20:27,820 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-07 06:20:27,821 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-07 06:20:27,999 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 06:20:28,067 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2019-10-07 06:20:28,068 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2019-10-07 06:20:34,852 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 06:20:34,853 INFO L284 CfgBuilder]: Removed 40 assume(true) statements. [2019-10-07 06:20:34,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 06:20:34 BoogieIcfgContainer [2019-10-07 06:20:34,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 06:20:34,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 06:20:34,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 06:20:34,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 06:20:34,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 06:20:14" (1/3) ... [2019-10-07 06:20:34,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332c0804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 06:20:34, skipping insertion in model container [2019-10-07 06:20:34,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 06:20:17" (2/3) ... [2019-10-07 06:20:34,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332c0804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 06:20:34, skipping insertion in model container [2019-10-07 06:20:34,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 06:20:34" (3/3) ... [2019-10-07 06:20:34,864 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2019-10-07 06:20:34,875 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 06:20:34,894 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 06:20:34,906 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 06:20:34,953 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 06:20:34,953 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 06:20:34,954 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 06:20:34,954 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 06:20:34,954 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 06:20:34,954 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 06:20:34,954 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 06:20:34,954 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 06:20:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states. [2019-10-07 06:20:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-07 06:20:35,007 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:35,008 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:35,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:35,018 INFO L82 PathProgramCache]: Analyzing trace with hash 86399700, now seen corresponding path program 1 times [2019-10-07 06:20:35,028 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:35,029 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:35,029 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:35,029 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:20:36,002 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:36,003 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:36,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:36,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:36,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:36,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:36,027 INFO L87 Difference]: Start difference. First operand 555 states. Second operand 3 states. [2019-10-07 06:20:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:36,226 INFO L93 Difference]: Finished difference Result 925 states and 1229 transitions. [2019-10-07 06:20:36,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:36,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-07 06:20:36,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:36,258 INFO L225 Difference]: With dead ends: 925 [2019-10-07 06:20:36,258 INFO L226 Difference]: Without dead ends: 595 [2019-10-07 06:20:36,273 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-10-07 06:20:36,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 591. [2019-10-07 06:20:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-07 06:20:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-10-07 06:20:36,440 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 25 [2019-10-07 06:20:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:36,440 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-10-07 06:20:36,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-10-07 06:20:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-07 06:20:36,446 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:36,446 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:36,447 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1616917055, now seen corresponding path program 1 times [2019-10-07 06:20:36,448 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:36,448 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:36,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:36,448 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:36,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:20:36,800 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:36,801 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:36,801 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:36,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:36,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:36,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:36,804 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 3 states. [2019-10-07 06:20:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:36,926 INFO L93 Difference]: Finished difference Result 593 states and 741 transitions. [2019-10-07 06:20:36,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:36,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-07 06:20:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:36,932 INFO L225 Difference]: With dead ends: 593 [2019-10-07 06:20:36,933 INFO L226 Difference]: Without dead ends: 581 [2019-10-07 06:20:36,934 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:36,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-07 06:20:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2019-10-07 06:20:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-07 06:20:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 726 transitions. [2019-10-07 06:20:36,990 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 726 transitions. Word has length 26 [2019-10-07 06:20:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:36,990 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 726 transitions. [2019-10-07 06:20:36,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 726 transitions. [2019-10-07 06:20:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-07 06:20:36,996 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:36,996 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:36,996 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:36,997 INFO L82 PathProgramCache]: Analyzing trace with hash 845106721, now seen corresponding path program 1 times [2019-10-07 06:20:36,997 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:36,997 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:36,998 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:36,998 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:37,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 06:20:37,428 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:37,428 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:37,429 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:37,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:37,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:37,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:37,431 INFO L87 Difference]: Start difference. First operand 581 states and 726 transitions. Second operand 3 states. [2019-10-07 06:20:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:37,602 INFO L93 Difference]: Finished difference Result 1163 states and 1472 transitions. [2019-10-07 06:20:37,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:37,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-10-07 06:20:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:37,612 INFO L225 Difference]: With dead ends: 1163 [2019-10-07 06:20:37,612 INFO L226 Difference]: Without dead ends: 603 [2019-10-07 06:20:37,616 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2019-10-07 06:20:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 595. [2019-10-07 06:20:37,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-07 06:20:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 740 transitions. [2019-10-07 06:20:37,680 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 740 transitions. Word has length 54 [2019-10-07 06:20:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:37,683 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 740 transitions. [2019-10-07 06:20:37,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 740 transitions. [2019-10-07 06:20:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 06:20:37,699 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:37,700 INFO L385 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:37,700 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:37,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:37,701 INFO L82 PathProgramCache]: Analyzing trace with hash 35543351, now seen corresponding path program 1 times [2019-10-07 06:20:37,701 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:37,702 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:37,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:37,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 06:20:38,118 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:38,118 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:38,118 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:38,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:38,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:38,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:38,120 INFO L87 Difference]: Start difference. First operand 595 states and 740 transitions. Second operand 3 states. [2019-10-07 06:20:38,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:38,250 INFO L93 Difference]: Finished difference Result 1193 states and 1502 transitions. [2019-10-07 06:20:38,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:38,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-10-07 06:20:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:38,260 INFO L225 Difference]: With dead ends: 1193 [2019-10-07 06:20:38,261 INFO L226 Difference]: Without dead ends: 619 [2019-10-07 06:20:38,265 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-07 06:20:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 607. [2019-10-07 06:20:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-07 06:20:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 752 transitions. [2019-10-07 06:20:38,311 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 752 transitions. Word has length 82 [2019-10-07 06:20:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:38,312 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 752 transitions. [2019-10-07 06:20:38,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 752 transitions. [2019-10-07 06:20:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 06:20:38,317 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:38,318 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:38,318 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:38,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1404506741, now seen corresponding path program 1 times [2019-10-07 06:20:38,320 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:38,320 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:38,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:38,321 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:38,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 06:20:38,698 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:38,699 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:38,700 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 06:20:38,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 06:20:38,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 06:20:38,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-07 06:20:38,703 INFO L87 Difference]: Start difference. First operand 607 states and 752 transitions. Second operand 5 states. [2019-10-07 06:20:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:38,954 INFO L93 Difference]: Finished difference Result 1259 states and 1594 transitions. [2019-10-07 06:20:38,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 06:20:38,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2019-10-07 06:20:38,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:38,960 INFO L225 Difference]: With dead ends: 1259 [2019-10-07 06:20:38,960 INFO L226 Difference]: Without dead ends: 671 [2019-10-07 06:20:38,963 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-07 06:20:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2019-10-07 06:20:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 654. [2019-10-07 06:20:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2019-10-07 06:20:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 825 transitions. [2019-10-07 06:20:38,998 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 825 transitions. Word has length 92 [2019-10-07 06:20:38,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:38,998 INFO L462 AbstractCegarLoop]: Abstraction has 654 states and 825 transitions. [2019-10-07 06:20:38,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 06:20:38,999 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 825 transitions. [2019-10-07 06:20:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 06:20:39,000 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:39,001 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:39,001 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:39,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash -328933617, now seen corresponding path program 1 times [2019-10-07 06:20:39,002 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:39,002 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:39,002 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:39,002 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:39,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 06:20:39,340 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:39,340 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:39,340 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:39,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:39,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:39,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:39,342 INFO L87 Difference]: Start difference. First operand 654 states and 825 transitions. Second operand 3 states. [2019-10-07 06:20:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:39,439 INFO L93 Difference]: Finished difference Result 1329 states and 1686 transitions. [2019-10-07 06:20:39,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:39,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2019-10-07 06:20:39,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:39,457 INFO L225 Difference]: With dead ends: 1329 [2019-10-07 06:20:39,457 INFO L226 Difference]: Without dead ends: 696 [2019-10-07 06:20:39,460 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-07 06:20:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2019-10-07 06:20:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2019-10-07 06:20:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 859 transitions. [2019-10-07 06:20:39,521 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 859 transitions. Word has length 113 [2019-10-07 06:20:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:39,523 INFO L462 AbstractCegarLoop]: Abstraction has 684 states and 859 transitions. [2019-10-07 06:20:39,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 859 transitions. [2019-10-07 06:20:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 06:20:39,534 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:39,534 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:39,535 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:39,535 INFO L82 PathProgramCache]: Analyzing trace with hash 369441069, now seen corresponding path program 1 times [2019-10-07 06:20:39,535 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:39,536 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:39,536 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:39,536 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 06:20:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 06:20:40,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:40,101 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 06:20:40,102 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 06:20:40,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 06:20:40,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 06:20:40,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:40,107 INFO L87 Difference]: Start difference. First operand 684 states and 859 transitions. Second operand 3 states. [2019-10-07 06:20:40,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 06:20:40,215 INFO L93 Difference]: Finished difference Result 1371 states and 1740 transitions. [2019-10-07 06:20:40,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 06:20:40,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 06:20:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 06:20:40,225 INFO L225 Difference]: With dead ends: 1371 [2019-10-07 06:20:40,225 INFO L226 Difference]: Without dead ends: 708 [2019-10-07 06:20:40,233 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 06:20:40,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-07 06:20:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 694. [2019-10-07 06:20:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-07 06:20:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 869 transitions. [2019-10-07 06:20:40,275 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 869 transitions. Word has length 121 [2019-10-07 06:20:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 06:20:40,277 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 869 transitions. [2019-10-07 06:20:40,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 06:20:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 869 transitions. [2019-10-07 06:20:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 06:20:40,282 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 06:20:40,283 INFO L385 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 06:20:40,283 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 06:20:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 06:20:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash 7258583, now seen corresponding path program 1 times [2019-10-07 06:20:40,284 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 06:20:40,284 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 06:20:40,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:40,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 06:20:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 06:20:40,466 ERROR L261 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-07 06:20:40,467 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Benchmark is only available after the trace check is finished. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.getStatistics(TraceCheck.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.getStatistics(InterpolatingTraceCheck.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.aggregateStatistics(IpTcStrategyModuleTraceCheck.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-07 06:20:40,483 INFO L168 Benchmark]: Toolchain (without parser) took 25603.30 ms. Allocated memory was 140.0 MB in the beginning and 712.0 MB in the end (delta: 572.0 MB). Free memory was 93.7 MB in the beginning and 533.7 MB in the end (delta: -440.0 MB). Peak memory consumption was 132.0 MB. Max. memory is 7.1 GB. [2019-10-07 06:20:40,486 INFO L168 Benchmark]: CDTParser took 1.72 ms. Allocated memory is still 140.0 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 06:20:40,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2495.92 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 93.5 MB in the beginning and 89.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2019-10-07 06:20:40,490 INFO L168 Benchmark]: Boogie Preprocessor took 391.67 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 89.1 MB in the beginning and 180.2 MB in the end (delta: -91.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2019-10-07 06:20:40,500 INFO L168 Benchmark]: RCFGBuilder took 17087.26 ms. Allocated memory was 235.4 MB in the beginning and 586.7 MB in the end (delta: 351.3 MB). Free memory was 180.2 MB in the beginning and 233.7 MB in the end (delta: -53.6 MB). Peak memory consumption was 373.0 MB. Max. memory is 7.1 GB. [2019-10-07 06:20:40,502 INFO L168 Benchmark]: TraceAbstraction took 5623.01 ms. Allocated memory was 586.7 MB in the beginning and 712.0 MB in the end (delta: 125.3 MB). Free memory was 233.7 MB in the beginning and 533.7 MB in the end (delta: -300.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 06:20:40,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.72 ms. Allocated memory is still 140.0 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2495.92 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 93.5 MB in the beginning and 89.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 391.67 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 89.1 MB in the beginning and 180.2 MB in the end (delta: -91.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17087.26 ms. Allocated memory was 235.4 MB in the beginning and 586.7 MB in the end (delta: 351.3 MB). Free memory was 180.2 MB in the beginning and 233.7 MB in the end (delta: -53.6 MB). Peak memory consumption was 373.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5623.01 ms. Allocated memory was 586.7 MB in the beginning and 712.0 MB in the end (delta: 125.3 MB). Free memory was 233.7 MB in the beginning and 533.7 MB in the end (delta: -300.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Benchmark is only available after the trace check is finished. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Benchmark is only available after the trace check is finished.: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.getStatistics(TraceCheck.java:457) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...