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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:22:33,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:22:33,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:22:33,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:22:33,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:22:33,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:22:33,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:22:33,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:22:33,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:22:33,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:22:33,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:22:33,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:22:33,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:22:33,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:22:33,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:22:33,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:22:33,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:22:33,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:22:33,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:22:33,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:22:33,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:22:33,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:22:33,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:22:33,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:22:33,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:22:33,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:22:33,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:22:33,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:22:33,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:22:33,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:22:33,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:22:33,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:22:33,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:22:33,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:22:33,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:22:33,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:22:33,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:22:33,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:22:33,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:22:33,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:22:33,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:22:33,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:22:33,925 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:22:33,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:22:33,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:22:33,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:22:33,927 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:22:33,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:22:33,927 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:22:33,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:22:33,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:22:33,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:22:33,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:22:33,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:22:33,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:22:33,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:22:33,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:22:33,930 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:22:33,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:22:33,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:22:33,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:22:33,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:22:33,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:22:33,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:33,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:22:33,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:22:33,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:22:33,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:22:33,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:22:33,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:22:33,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:22:34,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:22:34,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:22:34,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:22:34,312 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:22:34,312 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:22:34,313 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-13 20:22:34,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146186d0d/4e09ef032ff24e9c885d7fda2519f226/FLAG665e59cee [2019-10-13 20:22:35,161 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:22:35,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-13 20:22:35,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146186d0d/4e09ef032ff24e9c885d7fda2519f226/FLAG665e59cee [2019-10-13 20:22:35,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146186d0d/4e09ef032ff24e9c885d7fda2519f226 [2019-10-13 20:22:35,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:22:35,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:22:35,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:35,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:22:35,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:22:35,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:35" (1/1) ... [2019-10-13 20:22:35,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9c56da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:35, skipping insertion in model container [2019-10-13 20:22:35,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:35" (1/1) ... [2019-10-13 20:22:35,728 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:22:35,847 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:22:36,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:37,060 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:22:37,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:37,417 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:22:37,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37 WrapperNode [2019-10-13 20:22:37,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:37,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:22:37,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:22:37,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:22:37,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... [2019-10-13 20:22:37,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:22:37,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:22:37,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:22:37,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:22:37,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:22:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:22:37,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:22:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:22:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:22:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:22:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-13 20:22:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 20:22:37,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-13 20:22:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 20:22:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-10-13 20:22:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2019-10-13 20:22:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2019-10-13 20:22:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2019-10-13 20:22:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2019-10-13 20:22:37,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2019-10-13 20:22:37,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2019-10-13 20:22:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2019-10-13 20:22:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2019-10-13 20:22:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2019-10-13 20:22:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2019-10-13 20:22:37,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 20:22:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 20:22:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 20:22:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 20:22:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:22:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-10-13 20:22:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-10-13 20:22:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:22:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 20:22:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2019-10-13 20:22:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 20:22:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-13 20:22:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 20:22:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-13 20:22:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-10-13 20:22:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-10-13 20:22:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 20:22:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:22:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:22:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:22:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:22:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 20:22:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:22:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:22:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:22:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:22:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-13 20:22:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 20:22:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-13 20:22:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2019-10-13 20:22:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-10-13 20:22:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-13 20:22:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 20:22:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-13 20:22:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 20:22:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 20:22:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:22:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 20:22:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-13 20:22:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:22:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:22:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 20:22:37,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-10-13 20:22:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2019-10-13 20:22:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2019-10-13 20:22:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:22:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 20:22:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:22:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:22:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:22:37,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 20:22:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 20:22:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 20:22:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:22:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:22:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:22:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:22:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:22:38,459 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:38,586 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2019-10-13 20:22:38,586 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2019-10-13 20:22:38,622 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:38,677 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2019-10-13 20:22:38,678 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2019-10-13 20:22:39,025 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 20:22:39,031 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:39,061 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2019-10-13 20:22:39,061 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2019-10-13 20:22:41,502 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:41,607 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2019-10-13 20:22:41,607 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2019-10-13 20:22:41,631 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:22:41,631 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-13 20:22:41,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:41 BoogieIcfgContainer [2019-10-13 20:22:41,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:22:41,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:22:41,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:22:41,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:22:41,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:22:35" (1/3) ... [2019-10-13 20:22:41,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f430744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:41, skipping insertion in model container [2019-10-13 20:22:41,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:37" (2/3) ... [2019-10-13 20:22:41,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f430744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:41, skipping insertion in model container [2019-10-13 20:22:41,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:41" (3/3) ... [2019-10-13 20:22:41,641 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2019-10-13 20:22:41,652 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:22:41,663 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:22:41,675 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:22:41,710 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:22:41,710 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:22:41,710 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:22:41,711 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:22:41,711 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:22:41,711 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:22:41,711 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:22:41,711 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:22:41,750 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-10-13 20:22:41,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 20:22:41,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:41,760 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:41,763 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:41,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:41,771 INFO L82 PathProgramCache]: Analyzing trace with hash 921078484, now seen corresponding path program 1 times [2019-10-13 20:22:41,783 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:41,783 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653910163] [2019-10-13 20:22:41,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:41,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:41,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:42,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653910163] [2019-10-13 20:22:42,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:42,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:22:42,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487349872] [2019-10-13 20:22:42,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:22:42,559 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:42,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:22:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:22:42,583 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 6 states. [2019-10-13 20:22:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:50,505 INFO L93 Difference]: Finished difference Result 1165 states and 1604 transitions. [2019-10-13 20:22:50,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:22:50,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-10-13 20:22:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:50,531 INFO L225 Difference]: With dead ends: 1165 [2019-10-13 20:22:50,531 INFO L226 Difference]: Without dead ends: 737 [2019-10-13 20:22:50,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:22:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-10-13 20:22:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 725. [2019-10-13 20:22:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2019-10-13 20:22:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 902 transitions. [2019-10-13 20:22:50,666 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 902 transitions. Word has length 27 [2019-10-13 20:22:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:50,667 INFO L462 AbstractCegarLoop]: Abstraction has 725 states and 902 transitions. [2019-10-13 20:22:50,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:22:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 902 transitions. [2019-10-13 20:22:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 20:22:50,668 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:50,669 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:50,669 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:50,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:50,669 INFO L82 PathProgramCache]: Analyzing trace with hash -99989870, now seen corresponding path program 1 times [2019-10-13 20:22:50,670 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:50,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073954724] [2019-10-13 20:22:50,670 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:50,670 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:50,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:50,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073954724] [2019-10-13 20:22:50,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:50,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:50,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388163985] [2019-10-13 20:22:50,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:50,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:50,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:50,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:50,917 INFO L87 Difference]: Start difference. First operand 725 states and 902 transitions. Second operand 3 states. [2019-10-13 20:22:50,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:51,000 INFO L93 Difference]: Finished difference Result 2100 states and 2637 transitions. [2019-10-13 20:22:51,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:51,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-13 20:22:51,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:51,012 INFO L225 Difference]: With dead ends: 2100 [2019-10-13 20:22:51,013 INFO L226 Difference]: Without dead ends: 1410 [2019-10-13 20:22:51,016 INFO L600 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 [2019-10-13 20:22:51,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2019-10-13 20:22:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1395. [2019-10-13 20:22:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-10-13 20:22:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1749 transitions. [2019-10-13 20:22:51,129 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1749 transitions. Word has length 27 [2019-10-13 20:22:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:51,130 INFO L462 AbstractCegarLoop]: Abstraction has 1395 states and 1749 transitions. [2019-10-13 20:22:51,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1749 transitions. [2019-10-13 20:22:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-13 20:22:51,131 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:51,131 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:51,132 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:51,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:51,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1195105585, now seen corresponding path program 1 times [2019-10-13 20:22:51,132 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:51,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005037175] [2019-10-13 20:22:51,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,133 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:51,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005037175] [2019-10-13 20:22:51,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:51,393 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:51,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925696827] [2019-10-13 20:22:51,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:51,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:51,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:51,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:51,395 INFO L87 Difference]: Start difference. First operand 1395 states and 1749 transitions. Second operand 3 states. [2019-10-13 20:22:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:51,466 INFO L93 Difference]: Finished difference Result 1397 states and 1750 transitions. [2019-10-13 20:22:51,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:51,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-13 20:22:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:51,486 INFO L225 Difference]: With dead ends: 1397 [2019-10-13 20:22:51,486 INFO L226 Difference]: Without dead ends: 1372 [2019-10-13 20:22:51,487 INFO L600 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 [2019-10-13 20:22:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2019-10-13 20:22:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1372. [2019-10-13 20:22:51,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1372 states. [2019-10-13 20:22:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1719 transitions. [2019-10-13 20:22:51,582 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1719 transitions. Word has length 28 [2019-10-13 20:22:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:51,583 INFO L462 AbstractCegarLoop]: Abstraction has 1372 states and 1719 transitions. [2019-10-13 20:22:51,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1719 transitions. [2019-10-13 20:22:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-10-13 20:22:51,598 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:51,598 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:51,599 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:51,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:51,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1665270100, now seen corresponding path program 1 times [2019-10-13 20:22:51,599 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:51,600 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26252572] [2019-10-13 20:22:51,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:51,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 20:22:51,895 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26252572] [2019-10-13 20:22:51,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:51,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:22:51,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316992982] [2019-10-13 20:22:51,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:22:51,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:51,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:22:51,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:22:51,898 INFO L87 Difference]: Start difference. First operand 1372 states and 1719 transitions. Second operand 6 states. [2019-10-13 20:22:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:52,073 INFO L93 Difference]: Finished difference Result 2710 states and 3402 transitions. [2019-10-13 20:22:52,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:22:52,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2019-10-13 20:22:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:52,081 INFO L225 Difference]: With dead ends: 2710 [2019-10-13 20:22:52,082 INFO L226 Difference]: Without dead ends: 1367 [2019-10-13 20:22:52,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:22:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2019-10-13 20:22:52,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1367. [2019-10-13 20:22:52,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-10-13 20:22:52,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1712 transitions. [2019-10-13 20:22:52,156 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1712 transitions. Word has length 102 [2019-10-13 20:22:52,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:52,156 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1712 transitions. [2019-10-13 20:22:52,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:22:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1712 transitions. [2019-10-13 20:22:52,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 20:22:52,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:52,160 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:52,161 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:52,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:52,161 INFO L82 PathProgramCache]: Analyzing trace with hash 960569056, now seen corresponding path program 1 times [2019-10-13 20:22:52,161 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:52,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637174754] [2019-10-13 20:22:52,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:52,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:52,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 20:22:52,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637174754] [2019-10-13 20:22:52,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:52,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:52,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997179704] [2019-10-13 20:22:52,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:52,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:52,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:52,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:52,383 INFO L87 Difference]: Start difference. First operand 1367 states and 1712 transitions. Second operand 5 states. [2019-10-13 20:22:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:58,053 INFO L93 Difference]: Finished difference Result 2727 states and 3424 transitions. [2019-10-13 20:22:58,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:22:58,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-13 20:22:58,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:58,065 INFO L225 Difference]: With dead ends: 2727 [2019-10-13 20:22:58,065 INFO L226 Difference]: Without dead ends: 1393 [2019-10-13 20:22:58,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:22:58,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2019-10-13 20:22:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1367. [2019-10-13 20:22:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2019-10-13 20:22:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1710 transitions. [2019-10-13 20:22:58,195 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1710 transitions. Word has length 112 [2019-10-13 20:22:58,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:58,196 INFO L462 AbstractCegarLoop]: Abstraction has 1367 states and 1710 transitions. [2019-10-13 20:22:58,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:58,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1710 transitions. [2019-10-13 20:22:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 20:22:58,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:58,208 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:58,209 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:58,209 INFO L82 PathProgramCache]: Analyzing trace with hash 467942882, now seen corresponding path program 1 times [2019-10-13 20:22:58,210 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:58,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745999637] [2019-10-13 20:22:58,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:58,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:58,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 20:22:58,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745999637] [2019-10-13 20:22:58,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:58,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:58,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036402504] [2019-10-13 20:22:58,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:58,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:58,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:58,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:58,581 INFO L87 Difference]: Start difference. First operand 1367 states and 1710 transitions. Second operand 5 states. [2019-10-13 20:22:58,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:58,684 INFO L93 Difference]: Finished difference Result 2674 states and 3360 transitions. [2019-10-13 20:22:58,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:22:58,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-13 20:22:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:58,696 INFO L225 Difference]: With dead ends: 2674 [2019-10-13 20:22:58,700 INFO L226 Difference]: Without dead ends: 1340 [2019-10-13 20:22:58,707 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-10-13 20:22:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1336. [2019-10-13 20:22:58,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-13 20:22:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1665 transitions. [2019-10-13 20:22:58,809 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1665 transitions. Word has length 112 [2019-10-13 20:22:58,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:58,812 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1665 transitions. [2019-10-13 20:22:58,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:58,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1665 transitions. [2019-10-13 20:22:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 20:22:58,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:58,820 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:58,821 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:58,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:58,821 INFO L82 PathProgramCache]: Analyzing trace with hash -26259892, now seen corresponding path program 1 times [2019-10-13 20:22:58,822 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:58,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313800335] [2019-10-13 20:22:58,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:58,823 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:58,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:59,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313800335] [2019-10-13 20:22:59,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:59,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:59,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283628500] [2019-10-13 20:22:59,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:59,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:59,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:59,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:59,176 INFO L87 Difference]: Start difference. First operand 1336 states and 1665 transitions. Second operand 5 states. [2019-10-13 20:22:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:59,283 INFO L93 Difference]: Finished difference Result 2025 states and 2529 transitions. [2019-10-13 20:22:59,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:22:59,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2019-10-13 20:22:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:59,311 INFO L225 Difference]: With dead ends: 2025 [2019-10-13 20:22:59,311 INFO L226 Difference]: Without dead ends: 1340 [2019-10-13 20:22:59,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2019-10-13 20:22:59,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2019-10-13 20:22:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2019-10-13 20:22:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1667 transitions. [2019-10-13 20:22:59,416 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1667 transitions. Word has length 109 [2019-10-13 20:22:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:59,417 INFO L462 AbstractCegarLoop]: Abstraction has 1340 states and 1667 transitions. [2019-10-13 20:22:59,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1667 transitions. [2019-10-13 20:22:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 20:22:59,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:59,423 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:22:59,423 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:59,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:59,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1161044579, now seen corresponding path program 1 times [2019-10-13 20:22:59,425 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:59,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559912994] [2019-10-13 20:22:59,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 20:22:59,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559912994] [2019-10-13 20:22:59,922 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:59,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:59,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425399942] [2019-10-13 20:22:59,923 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:59,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:59,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:59,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:59,925 INFO L87 Difference]: Start difference. First operand 1340 states and 1667 transitions. Second operand 5 states. [2019-10-13 20:23:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:05,405 INFO L93 Difference]: Finished difference Result 2668 states and 3327 transitions. [2019-10-13 20:23:05,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:23:05,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2019-10-13 20:23:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:05,418 INFO L225 Difference]: With dead ends: 2668 [2019-10-13 20:23:05,419 INFO L226 Difference]: Without dead ends: 1361 [2019-10-13 20:23:05,423 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:23:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-10-13 20:23:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1336. [2019-10-13 20:23:05,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2019-10-13 20:23:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1659 transitions. [2019-10-13 20:23:05,598 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1659 transitions. Word has length 112 [2019-10-13 20:23:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:05,598 INFO L462 AbstractCegarLoop]: Abstraction has 1336 states and 1659 transitions. [2019-10-13 20:23:05,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:23:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1659 transitions. [2019-10-13 20:23:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 20:23:05,601 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:05,601 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 20:23:05,601 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:05,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:05,602 INFO L82 PathProgramCache]: Analyzing trace with hash 971083495, now seen corresponding path program 1 times [2019-10-13 20:23:05,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:05,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701292024] [2019-10-13 20:23:05,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:05,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:05,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 20:23:05,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701292024] [2019-10-13 20:23:05,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:05,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:23:05,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047365803] [2019-10-13 20:23:05,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:23:05,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:05,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:23:05,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:05,983 INFO L87 Difference]: Start difference. First operand 1336 states and 1659 transitions. Second operand 6 states. [2019-10-13 20:23:09,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:09,788 INFO L93 Difference]: Finished difference Result 2029 states and 2531 transitions. [2019-10-13 20:23:09,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 20:23:09,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2019-10-13 20:23:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:09,856 INFO L225 Difference]: With dead ends: 2029 [2019-10-13 20:23:09,856 INFO L226 Difference]: Without dead ends: 2026 [2019-10-13 20:23:09,858 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:23:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2019-10-13 20:23:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 2008. [2019-10-13 20:23:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states.