java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:10:24,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:10:24,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:10:24,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:10:24,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:10:24,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:10:24,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:10:24,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:10:24,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:10:24,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:10:24,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:10:24,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:10:24,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:10:24,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:10:24,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:10:24,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:10:24,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:10:24,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:10:24,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:10:24,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:10:24,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:10:24,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:10:24,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:10:24,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:10:24,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:10:24,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:10:24,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:10:24,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:10:24,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:10:24,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:10:24,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:10:24,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:10:24,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:10:24,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:10:24,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:10:24,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:10:24,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:10:24,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:10:24,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:10:24,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:10:24,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:10:24,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:10:24,870 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:10:24,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:10:24,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:10:24,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:10:24,872 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:10:24,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:10:24,873 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:10:24,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:10:24,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:10:24,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:10:24,876 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:10:24,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:10:24,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:10:24,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:10:24,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:10:24,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:10:24,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:10:24,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:10:24,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:10:24,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:10:24,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:10:24,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:10:24,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:10:24,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:10:25,147 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:10:25,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:10:25,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:10:25,164 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:10:25,164 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:10:25,165 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:10:25,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f30cd87/60883cafb7724caa92bffeff9b04d37c/FLAG9943078f0 [2019-10-14 23:10:25,952 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:10:25,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:10:25,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f30cd87/60883cafb7724caa92bffeff9b04d37c/FLAG9943078f0 [2019-10-14 23:10:26,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f30cd87/60883cafb7724caa92bffeff9b04d37c [2019-10-14 23:10:26,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:10:26,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:10:26,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:10:26,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:10:26,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:10:26,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:10:26" (1/1) ... [2019-10-14 23:10:26,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c66585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:26, skipping insertion in model container [2019-10-14 23:10:26,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:10:26" (1/1) ... [2019-10-14 23:10:26,090 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:10:26,195 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:10:27,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:10:27,219 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:10:27,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:10:27,482 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:10:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27 WrapperNode [2019-10-14 23:10:27,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:10:27,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:10:27,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:10:27,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:10:27,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... [2019-10-14 23:10:27,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:10:27,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:10:27,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:10:27,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:10:27,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:10:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:10:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:10:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 23:10:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-14 23:10:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-14 23:10:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-14 23:10:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-14 23:10:27,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-14 23:10:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-14 23:10:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2019-10-14 23:10:27,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 23:10:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 23:10:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 23:10:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:10:27,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:10:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-14 23:10:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-14 23:10:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:10:27,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:10:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:10:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:10:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 23:10:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-14 23:10:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-14 23:10:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-14 23:10:27,784 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2019-10-14 23:10:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-14 23:10:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-14 23:10:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-14 23:10:27,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_irq [2019-10-14 23:10:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_open [2019-10-14 23:10:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_close [2019-10-14 23:10:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_probe [2019-10-14 23:10:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2019-10-14 23:10:27,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_init [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_exit [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_2 [2019-10-14 23:10:27,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_6 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_8 [2019-10-14 23:10:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_10 [2019-10-14 23:10:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2019-10-14 23:10:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:10:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-14 23:10:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-14 23:10:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-14 23:10:27,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-14 23:10:27,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-14 23:10:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:10:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-14 23:10:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-14 23:10:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-14 23:10:27,792 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 23:10:27,793 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-14 23:10:27,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-14 23:10:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-14 23:10:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:10:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:10:27,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:10:27,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:10:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:10:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 23:10:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-14 23:10:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:10:27,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-14 23:10:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-14 23:10:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-14 23:10:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-14 23:10:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 23:10:27,797 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-14 23:10:27,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_8 [2019-10-14 23:10:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2019-10-14 23:10:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-14 23:10:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-14 23:10:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:10:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_2 [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2019-10-14 23:10:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_6 [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_10 [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-14 23:10:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-14 23:10:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-14 23:10:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-14 23:10:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2019-10-14 23:10:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-14 23:10:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-14 23:10:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:10:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:10:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 23:10:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 23:10:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 23:10:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:10:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:10:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:10:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:10:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:10:27,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-14 23:10:27,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:10:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:10:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:10:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:10:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:10:27,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-14 23:10:27,808 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-14 23:10:27,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_irq [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_open [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_close [2019-10-14 23:10:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_probe [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_init [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_exit [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:10:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-14 23:10:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-14 23:10:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-14 23:10:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-14 23:10:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-14 23:10:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:10:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:10:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:10:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:10:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:10:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:10:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:10:28,749 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:10:29,861 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:10:29,862 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:10:29,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:10:29 BoogieIcfgContainer [2019-10-14 23:10:29,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:10:29,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:10:29,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:10:29,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:10:29,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:10:26" (1/3) ... [2019-10-14 23:10:29,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea751c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:10:29, skipping insertion in model container [2019-10-14 23:10:29,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:10:27" (2/3) ... [2019-10-14 23:10:29,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea751c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:10:29, skipping insertion in model container [2019-10-14 23:10:29,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:10:29" (3/3) ... [2019-10-14 23:10:29,871 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_2a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:10:29,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:10:29,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:10:29,899 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:10:29,928 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:10:29,929 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:10:29,929 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:10:29,929 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:10:29,929 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:10:29,929 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:10:29,929 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:10:29,930 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:10:29,960 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states. [2019-10-14 23:10:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-14 23:10:29,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:29,970 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:10:29,972 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:29,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1288315444, now seen corresponding path program 1 times [2019-10-14 23:10:29,985 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:29,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488415934] [2019-10-14 23:10:29,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:29,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:29,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,813 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:30,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:10:30,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488415934] [2019-10-14 23:10:30,962 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:30,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:10:30,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316449807] [2019-10-14 23:10:30,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:10:30,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:31,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:10:31,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:10:31,025 INFO L87 Difference]: Start difference. First operand 504 states. Second operand 7 states. [2019-10-14 23:10:31,384 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:32,028 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:10:32,727 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-14 23:10:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:38,869 INFO L93 Difference]: Finished difference Result 1226 states and 1512 transitions. [2019-10-14 23:10:38,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:10:38,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2019-10-14 23:10:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:38,898 INFO L225 Difference]: With dead ends: 1226 [2019-10-14 23:10:38,898 INFO L226 Difference]: Without dead ends: 844 [2019-10-14 23:10:38,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:10:38,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2019-10-14 23:10:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 658. [2019-10-14 23:10:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-10-14 23:10:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 772 transitions. [2019-10-14 23:10:39,100 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 772 transitions. Word has length 43 [2019-10-14 23:10:39,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:39,101 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 772 transitions. [2019-10-14 23:10:39,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:10:39,101 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 772 transitions. [2019-10-14 23:10:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:10:39,106 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:39,106 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:10:39,106 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:39,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:39,107 INFO L82 PathProgramCache]: Analyzing trace with hash 2143860229, now seen corresponding path program 1 times [2019-10-14 23:10:39,107 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:39,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073834929] [2019-10-14 23:10:39,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:39,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:39,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,589 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:10:39,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073834929] [2019-10-14 23:10:39,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:39,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:10:39,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541591478] [2019-10-14 23:10:39,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:10:39,905 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:10:39,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:10:39,907 INFO L87 Difference]: Start difference. First operand 658 states and 772 transitions. Second operand 11 states. [2019-10-14 23:10:40,202 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:40,604 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:10:40,957 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-14 23:10:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:45,928 INFO L93 Difference]: Finished difference Result 1500 states and 1816 transitions. [2019-10-14 23:10:45,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:10:45,929 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2019-10-14 23:10:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:45,937 INFO L225 Difference]: With dead ends: 1500 [2019-10-14 23:10:45,938 INFO L226 Difference]: Without dead ends: 862 [2019-10-14 23:10:45,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:10:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2019-10-14 23:10:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 663. [2019-10-14 23:10:46,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2019-10-14 23:10:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 776 transitions. [2019-10-14 23:10:46,070 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 776 transitions. Word has length 70 [2019-10-14 23:10:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:46,071 INFO L462 AbstractCegarLoop]: Abstraction has 663 states and 776 transitions. [2019-10-14 23:10:46,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:10:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 776 transitions. [2019-10-14 23:10:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:10:46,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:46,075 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:10:46,075 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:46,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:46,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1392784187, now seen corresponding path program 1 times [2019-10-14 23:10:46,076 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:46,076 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633628778] [2019-10-14 23:10:46,076 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:46,076 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:46,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,455 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:10:46,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633628778] [2019-10-14 23:10:46,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:46,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:10:46,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452913991] [2019-10-14 23:10:46,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:10:46,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:46,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:10:46,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:10:46,655 INFO L87 Difference]: Start difference. First operand 663 states and 776 transitions. Second operand 8 states. [2019-10-14 23:10:46,921 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:47,323 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-14 23:10:47,693 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:54,422 INFO L93 Difference]: Finished difference Result 2300 states and 2821 transitions. [2019-10-14 23:10:54,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:10:54,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-10-14 23:10:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:54,434 INFO L225 Difference]: With dead ends: 2300 [2019-10-14 23:10:54,434 INFO L226 Difference]: Without dead ends: 1657 [2019-10-14 23:10:54,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:10:54,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2019-10-14 23:10:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1325. [2019-10-14 23:10:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1325 states. [2019-10-14 23:10:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1558 transitions. [2019-10-14 23:10:54,713 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1558 transitions. Word has length 70 [2019-10-14 23:10:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:54,713 INFO L462 AbstractCegarLoop]: Abstraction has 1325 states and 1558 transitions. [2019-10-14 23:10:54,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:10:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1558 transitions. [2019-10-14 23:10:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-14 23:10:54,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:54,717 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:10:54,717 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:54,718 INFO L82 PathProgramCache]: Analyzing trace with hash -226781931, now seen corresponding path program 1 times [2019-10-14 23:10:54,718 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:54,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952519357] [2019-10-14 23:10:54,718 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:54,718 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:54,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,116 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:10:55,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952519357] [2019-10-14 23:10:55,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:55,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:10:55,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280850388] [2019-10-14 23:10:55,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:10:55,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:55,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:10:55,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:10:55,339 INFO L87 Difference]: Start difference. First operand 1325 states and 1558 transitions. Second operand 8 states. [2019-10-14 23:10:55,616 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:56,006 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2019-10-14 23:10:56,335 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:10:59,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:59,534 INFO L93 Difference]: Finished difference Result 1649 states and 2045 transitions. [2019-10-14 23:10:59,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:10:59,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2019-10-14 23:10:59,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:59,546 INFO L225 Difference]: With dead ends: 1649 [2019-10-14 23:10:59,546 INFO L226 Difference]: Without dead ends: 1646 [2019-10-14 23:10:59,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:10:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2019-10-14 23:10:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1324. [2019-10-14 23:10:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1324 states. [2019-10-14 23:10:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1556 transitions. [2019-10-14 23:10:59,746 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1556 transitions. Word has length 71 [2019-10-14 23:10:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:59,747 INFO L462 AbstractCegarLoop]: Abstraction has 1324 states and 1556 transitions. [2019-10-14 23:10:59,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:10:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1556 transitions. [2019-10-14 23:10:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-14 23:10:59,750 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:59,751 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:10:59,751 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:59,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1559554504, now seen corresponding path program 1 times [2019-10-14 23:10:59,751 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:59,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032645650] [2019-10-14 23:10:59,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:59,752 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:59,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,118 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:11:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:11:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:11:00,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032645650] [2019-10-14 23:11:00,322 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:11:00,322 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:11:00,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269187065] [2019-10-14 23:11:00,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:11:00,323 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:11:00,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:11:00,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:11:00,323 INFO L87 Difference]: Start difference. First operand 1324 states and 1556 transitions. Second operand 8 states. [2019-10-14 23:11:00,645 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-10-14 23:11:01,073 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-10-14 23:11:01,394 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 201