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-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:20:26,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:20:26,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:20:26,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:20:26,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:20:26,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:20:26,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:20:26,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:20:26,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:20:26,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:20:26,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:20:26,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:20:26,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:20:26,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:20:26,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:20:26,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:20:26,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:20:26,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:20:26,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:20:26,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:20:26,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:20:26,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:20:26,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:20:26,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:20:26,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:20:26,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:20:26,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:20:26,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:20:26,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:20:26,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:20:26,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:20:26,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:20:26,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:20:26,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:20:26,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:20:26,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:20:26,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:20:26,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:20:26,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:20:26,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:20:26,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:20:26,762 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 18:20:26,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:20:26,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:20:26,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:20:26,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:20:26,782 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:20:26,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:20:26,782 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:20:26,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:20:26,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:20:26,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:20:26,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:20:26,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:20:26,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:20:26,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:20:26,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:20:26,784 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:20:26,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:20:26,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:20:26,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:20:26,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:20:26,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:20:26,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:20:26,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:20:26,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:20:26,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:20:26,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:20:26,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:20:26,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:20:26,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:20:27,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:20:27,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:20:27,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:20:27,100 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:20:27,101 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:20:27,101 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 18:20:27,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16049c67/2c731502f2124ca7b0e475c36cbbf298/FLAG51b999bf0 [2019-10-13 18:20:27,987 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:20:27,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 18:20:28,037 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16049c67/2c731502f2124ca7b0e475c36cbbf298/FLAG51b999bf0 [2019-10-13 18:20:28,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c16049c67/2c731502f2124ca7b0e475c36cbbf298 [2019-10-13 18:20:28,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:20:28,525 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:20:28,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:28,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:20:28,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:20:28,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:28" (1/1) ... [2019-10-13 18:20:28,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba368ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:28, skipping insertion in model container [2019-10-13 18:20:28,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:28" (1/1) ... [2019-10-13 18:20:28,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:20:28,643 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:20:30,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:30,235 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:20:30,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:30,790 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:20:30,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30 WrapperNode [2019-10-13 18:20:30,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:30,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:20:30,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:20:30,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:20:30,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:30,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:30,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:30,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:31,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:31,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:31,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (1/1) ... [2019-10-13 18:20:31,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:20:31,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:20:31,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:20:31,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:20:31,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (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 18:20:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:20:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:20:31,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 18:20:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 18:20:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 18:20:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 18:20:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 18:20:31,180 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 18:20:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-13 18:20:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 18:20:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 18:20:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 18:20:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 18:20:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 18:20:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-13 18:20:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-13 18:20:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-13 18:20:31,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-13 18:20:31,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-13 18:20:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 18:20:31,184 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-13 18:20:31,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 18:20:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 18:20:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 18:20:31,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 18:20:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 18:20:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:20:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:20:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 18:20:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-10-13 18:20:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-10-13 18:20:31,189 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 18:20:31,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 18:20:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 18:20:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 18:20:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 18:20:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 18:20:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 18:20:31,193 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 18:20:31,193 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 18:20:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 18:20:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 18:20:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 18:20:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 18:20:31,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:20:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 18:20:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-13 18:20:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 18:20:31,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:20:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 18:20:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 18:20:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 18:20:31,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 18:20:31,197 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 18:20:31,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:20:31,197 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 18:20:31,198 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 18:20:31,198 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 18:20:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-13 18:20:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-13 18:20:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 18:20:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-13 18:20:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:20:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:20:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:20:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:20:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:20:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 18:20:31,202 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:20:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:20:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 18:20:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 18:20:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 18:20:31,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:20:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 18:20:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:20:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 18:20:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-13 18:20:31,204 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 18:20:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 18:20:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 18:20:31,205 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 18:20:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 18:20:31,206 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 18:20:31,207 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 18:20:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 18:20:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 18:20:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:20:31,208 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 18:20:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:20:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 18:20:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 18:20:31,209 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-13 18:20:31,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-13 18:20:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-13 18:20:31,213 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-13 18:20:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-13 18:20:31,214 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 18:20:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 18:20:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 18:20:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:20:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 18:20:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 18:20:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 18:20:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:20:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 18:20:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 18:20:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 18:20:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 18:20:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-10-13 18:20:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:20:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-10-13 18:20:31,228 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:20:31,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:20:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 18:20:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 18:20:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 18:20:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:20:31,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:20:31,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:20:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:20:31,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:20:32,251 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:32,267 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 18:20:32,267 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 18:20:32,313 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:32,633 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-10-13 18:20:32,634 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-10-13 18:20:32,733 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 18:20:34,276 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:34,371 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-13 18:20:34,372 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-13 18:20:34,476 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:34,764 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-10-13 18:20:34,765 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-10-13 18:20:34,945 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:35,001 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 18:20:35,001 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 18:20:35,290 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:20:35,290 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-13 18:20:35,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:35 BoogieIcfgContainer [2019-10-13 18:20:35,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:20:35,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:20:35,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:20:35,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:20:35,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:20:28" (1/3) ... [2019-10-13 18:20:35,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc69eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:35, skipping insertion in model container [2019-10-13 18:20:35,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:30" (2/3) ... [2019-10-13 18:20:35,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fc69eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:35, skipping insertion in model container [2019-10-13 18:20:35,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:35" (3/3) ... [2019-10-13 18:20:35,303 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-13 18:20:35,318 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:20:35,330 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:20:35,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:20:35,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:20:35,396 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:20:35,396 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:20:35,396 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:20:35,396 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:20:35,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:20:35,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:20:35,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:20:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-10-13 18:20:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 18:20:35,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:35,469 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] [2019-10-13 18:20:35,477 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:35,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:35,486 INFO L82 PathProgramCache]: Analyzing trace with hash 39899685, now seen corresponding path program 1 times [2019-10-13 18:20:35,497 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:35,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99322029] [2019-10-13 18:20:35,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:35,501 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:35,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,622 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 439 [2019-10-13 18:20:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,778 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 18:20:37,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99322029] [2019-10-13 18:20:37,780 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:37,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:20:37,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055888814] [2019-10-13 18:20:37,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:20:37,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:37,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:20:37,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:20:37,805 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 4 states. [2019-10-13 18:20:40,237 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 441 [2019-10-13 18:20:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:58,251 INFO L93 Difference]: Finished difference Result 2315 states and 3259 transitions. [2019-10-13 18:20:58,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 18:20:58,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-13 18:20:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:58,287 INFO L225 Difference]: With dead ends: 2315 [2019-10-13 18:20:58,288 INFO L226 Difference]: Without dead ends: 1551 [2019-10-13 18:20:58,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:20:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2019-10-13 18:20:58,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1521. [2019-10-13 18:20:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1521 states. [2019-10-13 18:20:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2001 transitions. [2019-10-13 18:20:58,756 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2001 transitions. Word has length 29 [2019-10-13 18:20:58,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:58,757 INFO L462 AbstractCegarLoop]: Abstraction has 1521 states and 2001 transitions. [2019-10-13 18:20:58,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:20:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2001 transitions. [2019-10-13 18:20:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 18:20:58,758 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:58,759 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] [2019-10-13 18:20:58,759 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:58,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:58,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1236422027, now seen corresponding path program 1 times [2019-10-13 18:20:58,760 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:58,760 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316110725] [2019-10-13 18:20:58,760 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:58,761 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:58,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,143 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 439 [2019-10-13 18:21:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:00,302 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 18:21:00,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316110725] [2019-10-13 18:21:00,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:00,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:21:00,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904164066] [2019-10-13 18:21:00,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:21:00,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:00,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:21:00,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:21:00,309 INFO L87 Difference]: Start difference. First operand 1521 states and 2001 transitions. Second operand 4 states. [2019-10-13 18:21:02,099 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 441