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 0.1.24-13a467a-m [2019-10-14 22:19:26,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:19:26,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:19:26,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:19:26,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:19:26,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:19:26,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:19:26,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:19:26,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:19:26,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:19:26,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:19:26,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:19:26,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:19:26,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:19:26,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:19:26,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:19:26,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:19:26,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:19:26,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:19:26,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:19:26,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:19:26,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:19:26,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:19:26,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:19:26,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:19:26,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:19:26,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:19:26,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:19:26,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:19:26,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:19:26,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:19:26,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:19:26,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:19:26,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:19:26,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:19:26,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:19:26,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:19:26,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:19:26,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:19:26,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:19:26,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:19:26,083 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 22:19:26,096 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:19:26,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:19:26,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:19:26,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:19:26,098 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:19:26,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:19:26,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:19:26,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:19:26,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:19:26,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:19:26,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:19:26,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:19:26,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:19:26,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:19:26,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:19:26,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:19:26,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:19:26,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:19:26,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:19:26,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:19:26,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:19:26,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:19:26,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:19:26,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:19:26,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:19:26,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:19:26,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:19:26,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:19:26,412 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:19:26,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-14 22:19:26,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dee0fb8f/d4bef68e54414f08a38d1dcb35c44acd/FLAG2281cc0e0 [2019-10-14 22:19:27,260 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:19:27,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-14 22:19:27,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dee0fb8f/d4bef68e54414f08a38d1dcb35c44acd/FLAG2281cc0e0 [2019-10-14 22:19:27,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dee0fb8f/d4bef68e54414f08a38d1dcb35c44acd [2019-10-14 22:19:27,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:19:27,404 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:19:27,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:19:27,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:19:27,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:19:27,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:27" (1/1) ... [2019-10-14 22:19:27,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1dcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:27, skipping insertion in model container [2019-10-14 22:19:27,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:19:27" (1/1) ... [2019-10-14 22:19:27,422 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:19:27,536 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:19:28,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:19:28,808 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:19:29,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:19:29,285 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:19:29,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29 WrapperNode [2019-10-14 22:19:29,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:19:29,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:19:29,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:19:29,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:19:29,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (1/1) ... [2019-10-14 22:19:29,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:19:29,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:19:29,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:19:29,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:19:29,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (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 22:19:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:19:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:19:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-14 22:19:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-14 22:19:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-14 22:19:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-14 22:19:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-14 22:19:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-14 22:19:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-14 22:19:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-14 22:19:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-14 22:19:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-14 22:19:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-14 22:19:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-14 22:19:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-14 22:19:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-14 22:19:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-14 22:19:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-14 22:19:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-10-14 22:19:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-14 22:19:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-14 22:19:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-14 22:19:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-14 22:19:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-14 22:19:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-14 22:19:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-14 22:19:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-14 22:19:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-14 22:19:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-14 22:19:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-14 22:19:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-14 22:19:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:19:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:19:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-14 22:19:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_report [2019-10-14 22:19:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_report [2019-10-14 22:19:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_callback [2019-10-14 22:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write_callback [2019-10-14 22:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_delete [2019-10-14 22:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure read_index [2019-10-14 22:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_read [2019-10-14 22:19:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_write [2019-10-14 22:19:29,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_ioctl [2019-10-14 22:19:29,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_open [2019-10-14 22:19:29,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_release [2019-10-14 22:19:29,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_poll [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_devnode [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_probe [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_disconnect [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_init [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure iowarrior_exit [2019-10-14 22:19:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-14 22:19:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-14 22:19:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:19:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-14 22:19:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-14 22:19:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-14 22:19:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:19:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-14 22:19:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-14 22:19:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-14 22:19:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-14 22:19:29,694 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-14 22:19:29,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-14 22:19:29,696 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-14 22:19:29,697 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-14 22:19:29,698 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:19:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:19:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 22:19:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 22:19:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:19:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-14 22:19:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:19:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-14 22:19:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-14 22:19:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-14 22:19:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-14 22:19:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-14 22:19:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 22:19:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 22:19:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-14 22:19:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-14 22:19:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-14 22:19:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:19:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-14 22:19:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-14 22:19:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-14 22:19:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-14 22:19:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-14 22:19:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-14 22:19:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-14 22:19:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-14 22:19:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:19:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-14 22:19:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:19:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-14 22:19:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-14 22:19:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-14 22:19:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-14 22:19:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-14 22:19:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-14 22:19:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-14 22:19:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-14 22:19:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-14 22:19:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-14 22:19:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-14 22:19:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-14 22:19:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-14 22:19:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-14 22:19:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-14 22:19:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-14 22:19:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:19:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-14 22:19:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-14 22:19:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-14 22:19:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-14 22:19:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-14 22:19:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-14 22:19:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-14 22:19:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-14 22:19:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-14 22:19:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:19:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:19:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:19:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-14 22:19:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-14 22:19:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_report [2019-10-14 22:19:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_report [2019-10-14 22:19:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_callback [2019-10-14 22:19:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 22:19:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write_callback [2019-10-14 22:19:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_delete [2019-10-14 22:19:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure read_index [2019-10-14 22:19:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_read [2019-10-14 22:19:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:19:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_write [2019-10-14 22:19:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_ioctl [2019-10-14 22:19:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 22:19:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_open [2019-10-14 22:19:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_release [2019-10-14 22:19:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_poll [2019-10-14 22:19:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_devnode [2019-10-14 22:19:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_probe [2019-10-14 22:19:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_disconnect [2019-10-14 22:19:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_init [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure iowarrior_exit [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:19:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:19:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:19:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:19:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:19:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:19:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:19:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:19:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 22:19:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:19:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 22:19:30,834 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 22:19:30,845 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-14 22:19:30,845 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-14 22:19:30,880 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 22:19:31,141 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2019-10-14 22:19:31,141 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2019-10-14 22:19:31,247 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-14 22:19:32,685 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 22:19:32,786 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2019-10-14 22:19:32,787 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2019-10-14 22:19:32,880 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 22:19:33,130 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2019-10-14 22:19:33,131 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2019-10-14 22:19:33,276 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-14 22:19:33,335 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-14 22:19:33,335 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-14 22:19:33,677 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:19:33,678 INFO L284 CfgBuilder]: Removed 27 assume(true) statements. [2019-10-14 22:19:33,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:33 BoogieIcfgContainer [2019-10-14 22:19:33,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:19:33,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:19:33,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:19:33,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:19:33,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:19:27" (1/3) ... [2019-10-14 22:19:33,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efa956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:33, skipping insertion in model container [2019-10-14 22:19:33,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:19:29" (2/3) ... [2019-10-14 22:19:33,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efa956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:19:33, skipping insertion in model container [2019-10-14 22:19:33,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:19:33" (3/3) ... [2019-10-14 22:19:33,691 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-misc-iowarrior.ko.cil.out.i [2019-10-14 22:19:33,702 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:19:33,714 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:19:33,727 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:19:33,766 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:19:33,767 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:19:33,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:19:33,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:19:33,767 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:19:33,767 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:19:33,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:19:33,768 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:19:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states. [2019-10-14 22:19:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-14 22:19:33,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:19:33,825 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] [2019-10-14 22:19:33,828 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:19:33,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:19:33,838 INFO L82 PathProgramCache]: Analyzing trace with hash 39899685, now seen corresponding path program 1 times [2019-10-14 22:19:33,847 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:19:33,848 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20268737] [2019-10-14 22:19:33,857 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:33,857 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:33,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:19:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,820 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 439 [2019-10-14 22:19:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:19:35,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20268737] [2019-10-14 22:19:35,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:19:35,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 22:19:35,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665498877] [2019-10-14 22:19:35,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 22:19:35,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:19:35,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 22:19:35,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 22:19:35,991 INFO L87 Difference]: Start difference. First operand 820 states. Second operand 4 states. [2019-10-14 22:19:38,548 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 441 [2019-10-14 22:19:56,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:19:56,866 INFO L93 Difference]: Finished difference Result 2315 states and 3259 transitions. [2019-10-14 22:19:56,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 22:19:56,869 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-14 22:19:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:19:56,904 INFO L225 Difference]: With dead ends: 2315 [2019-10-14 22:19:56,905 INFO L226 Difference]: Without dead ends: 1551 [2019-10-14 22:19:56,918 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 [2019-10-14 22:19:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2019-10-14 22:19:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1521. [2019-10-14 22:19:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1521 states. [2019-10-14 22:19:57,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2001 transitions. [2019-10-14 22:19:57,419 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2001 transitions. Word has length 29 [2019-10-14 22:19:57,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:19:57,420 INFO L462 AbstractCegarLoop]: Abstraction has 1521 states and 2001 transitions. [2019-10-14 22:19:57,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 22:19:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2001 transitions. [2019-10-14 22:19:57,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-14 22:19:57,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:19:57,421 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] [2019-10-14 22:19:57,422 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:19:57,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:19:57,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1236422027, now seen corresponding path program 1 times [2019-10-14 22:19:57,422 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:19:57,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797536382] [2019-10-14 22:19:57,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:57,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:19:57,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:19:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,575 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-14 22:19:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:19:58,701 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 22:19:58,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797536382] [2019-10-14 22:19:58,702 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:19:58,702 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 22:19:58,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910863219] [2019-10-14 22:19:58,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 22:19:58,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:19:58,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 22:19:58,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 22:19:58,705 INFO L87 Difference]: Start difference. First operand 1521 states and 2001 transitions. Second operand 4 states. [2019-10-14 22:20:01,085 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 441