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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:32:09,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:32:09,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:32:09,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:32:09,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:32:09,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:32:09,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:32:09,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:32:09,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:32:09,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:32:09,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:32:09,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:32:09,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:32:09,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:32:09,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:32:09,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:32:09,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:32:09,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:32:09,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:32:09,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:32:09,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:32:09,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:32:09,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:32:09,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:32:09,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:32:09,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:32:09,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:32:09,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:32:09,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:32:09,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:32:09,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:32:09,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:32:09,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:32:09,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:32:09,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:32:09,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:32:09,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:32:09,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:32:09,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:32:09,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:32:09,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:32:09,085 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 18:32:09,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:32:09,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:32:09,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:32:09,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:32:09,108 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:32:09,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:32:09,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:32:09,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:32:09,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:32:09,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:32:09,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:32:09,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:32:09,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:32:09,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:32:09,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:32:09,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:32:09,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:32:09,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:32:09,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:32:09,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:32:09,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:32:09,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:32:09,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:32:09,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:32:09,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:32:09,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:32:09,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:32:09,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:32:09,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:32:09,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:32:09,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:32:09,393 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:32:09,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:32:09,395 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:32:09,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2019-10-13 18:32:09,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a50e0f8/8854a8b3fc3a4f979bc3e55d8712bbf2/FLAG512dd7dc5 [2019-10-13 18:32:10,236 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:32:10,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2019-10-13 18:32:10,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a50e0f8/8854a8b3fc3a4f979bc3e55d8712bbf2/FLAG512dd7dc5 [2019-10-13 18:32:10,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67a50e0f8/8854a8b3fc3a4f979bc3e55d8712bbf2 [2019-10-13 18:32:10,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:32:10,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:32:10,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:32:10,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:32:10,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:32:10,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:32:10" (1/1) ... [2019-10-13 18:32:10,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0310ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:10, skipping insertion in model container [2019-10-13 18:32:10,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:32:10" (1/1) ... [2019-10-13 18:32:10,810 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:32:10,918 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:32:12,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:32:12,081 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:32:12,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:32:12,541 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:32:12,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12 WrapperNode [2019-10-13 18:32:12,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:32:12,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:32:12,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:32:12,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:32:12,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (1/1) ... [2019-10-13 18:32:12,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:32:12,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:32:12,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:32:12,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:32:12,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (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 18:32:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:32:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:32:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:32:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:32:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:32:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-13 18:32:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:32:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:32:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:32:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:32:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:32:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:32:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:32:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:32:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:32:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-13 18:32:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 18:32:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2019-10-13 18:32:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_bind [2019-10-13 18:32:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_unbind [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_init [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_exit [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:32:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2019-10-13 18:32:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 18:32:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:32:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 18:32:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 18:32:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-10-13 18:32:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-10-13 18:32:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:32:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:32:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:32:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:32:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:32:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:32:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 18:32:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-10-13 18:32:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 18:32:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:32:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:32:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-13 18:32:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 18:32:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-10-13 18:32:12,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:32:12,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_bind [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_unbind [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_init [2019-10-13 18:32:12,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_exit [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 18:32:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 18:32:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:32:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:32:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:32:13,484 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:32:15,608 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:32:15,610 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 18:32:15,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:32:15 BoogieIcfgContainer [2019-10-13 18:32:15,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:32:15,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:32:15,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:32:15,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:32:15,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:32:10" (1/3) ... [2019-10-13 18:32:15,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301c0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:32:15, skipping insertion in model container [2019-10-13 18:32:15,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:32:12" (2/3) ... [2019-10-13 18:32:15,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301c0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:32:15, skipping insertion in model container [2019-10-13 18:32:15,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:32:15" (3/3) ... [2019-10-13 18:32:15,627 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2019-10-13 18:32:15,637 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:32:15,650 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:32:15,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:32:15,698 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:32:15,698 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:32:15,698 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:32:15,698 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:32:15,699 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:32:15,699 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:32:15,699 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:32:15,699 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:32:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states. [2019-10-13 18:32:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 18:32:15,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:32:15,768 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:32:15,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:32:15,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:32:15,778 INFO L82 PathProgramCache]: Analyzing trace with hash 2139495828, now seen corresponding path program 1 times [2019-10-13 18:32:15,787 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:32:15,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153712241] [2019-10-13 18:32:15,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:15,790 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:15,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:32:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:16,935 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-13 18:32:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 18:32:17,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153712241] [2019-10-13 18:32:17,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:32:17,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 18:32:17,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140016252] [2019-10-13 18:32:17,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:32:17,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:32:17,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:32:17,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:32:17,265 INFO L87 Difference]: Start difference. First operand 416 states. Second operand 8 states. [2019-10-13 18:32:19,813 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2019-10-13 18:32:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:32:27,882 INFO L93 Difference]: Finished difference Result 1523 states and 2162 transitions. [2019-10-13 18:32:27,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 18:32:27,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2019-10-13 18:32:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:32:27,935 INFO L225 Difference]: With dead ends: 1523 [2019-10-13 18:32:27,935 INFO L226 Difference]: Without dead ends: 1110 [2019-10-13 18:32:27,949 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2019-10-13 18:32:27,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2019-10-13 18:32:28,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 708. [2019-10-13 18:32:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-13 18:32:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 912 transitions. [2019-10-13 18:32:28,166 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 912 transitions. Word has length 60 [2019-10-13 18:32:28,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:32:28,167 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 912 transitions. [2019-10-13 18:32:28,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:32:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 912 transitions. [2019-10-13 18:32:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 18:32:28,172 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:32:28,173 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:32:28,173 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:32:28,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:32:28,174 INFO L82 PathProgramCache]: Analyzing trace with hash 325365841, now seen corresponding path program 1 times [2019-10-13 18:32:28,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:32:28,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537640767] [2019-10-13 18:32:28,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:28,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:28,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:32:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,786 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-13 18:32:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 18:32:29,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537640767] [2019-10-13 18:32:29,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:32:29,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 18:32:29,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300574526] [2019-10-13 18:32:29,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 18:32:29,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:32:29,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 18:32:29,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-13 18:32:29,087 INFO L87 Difference]: Start difference. First operand 708 states and 912 transitions. Second operand 12 states. [2019-10-13 18:32:32,990 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2019-10-13 18:32:39,470 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 243 [2019-10-13 18:32:39,886 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2019-10-13 18:32:40,279 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2019-10-13 18:32:40,849 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2019-10-13 18:32:45,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:32:45,590 INFO L93 Difference]: Finished difference Result 2627 states and 3625 transitions. [2019-10-13 18:32:45,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 18:32:45,596 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 76 [2019-10-13 18:32:45,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:32:45,610 INFO L225 Difference]: With dead ends: 2627 [2019-10-13 18:32:45,611 INFO L226 Difference]: Without dead ends: 1918 [2019-10-13 18:32:45,616 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=203, Invalid=447, Unknown=0, NotChecked=0, Total=650 [2019-10-13 18:32:45,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2019-10-13 18:32:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1465. [2019-10-13 18:32:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1465 states. [2019-10-13 18:32:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1928 transitions. [2019-10-13 18:32:45,870 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1928 transitions. Word has length 76 [2019-10-13 18:32:45,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:32:45,870 INFO L462 AbstractCegarLoop]: Abstraction has 1465 states and 1928 transitions. [2019-10-13 18:32:45,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 18:32:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1928 transitions. [2019-10-13 18:32:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 18:32:45,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:32:45,877 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:32:45,878 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:32:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:32:45,878 INFO L82 PathProgramCache]: Analyzing trace with hash 66962243, now seen corresponding path program 1 times [2019-10-13 18:32:45,878 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:32:45,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766097461] [2019-10-13 18:32:45,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:45,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:45,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:32:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,390 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-13 18:32:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 18:32:46,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766097461] [2019-10-13 18:32:46,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277103113] [2019-10-13 18:32:46,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:32:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:47,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 18:32:47,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 18:32:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 18:32:47,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-13 18:32:47,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 14 [2019-10-13 18:32:47,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323889046] [2019-10-13 18:32:47,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 18:32:47,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:32:47,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 18:32:47,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-13 18:32:47,385 INFO L87 Difference]: Start difference. First operand 1465 states and 1928 transitions. Second operand 3 states. [2019-10-13 18:32:47,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:32:47,684 INFO L93 Difference]: Finished difference Result 3242 states and 4266 transitions. [2019-10-13 18:32:47,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 18:32:47,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 18:32:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:32:47,698 INFO L225 Difference]: With dead ends: 3242 [2019-10-13 18:32:47,698 INFO L226 Difference]: Without dead ends: 1800 [2019-10-13 18:32:47,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-13 18:32:47,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2019-10-13 18:32:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1776. [2019-10-13 18:32:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2019-10-13 18:32:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2337 transitions. [2019-10-13 18:32:48,121 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2337 transitions. Word has length 133 [2019-10-13 18:32:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:32:48,121 INFO L462 AbstractCegarLoop]: Abstraction has 1776 states and 2337 transitions. [2019-10-13 18:32:48,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 18:32:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2337 transitions. [2019-10-13 18:32:48,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 18:32:48,128 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:32:48,128 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:32:48,336 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 18:32:48,337 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:32:48,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:32:48,337 INFO L82 PathProgramCache]: Analyzing trace with hash 927428433, now seen corresponding path program 1 times [2019-10-13 18:32:48,337 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:32:48,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859282321] [2019-10-13 18:32:48,338 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:48,338 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:32:48,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:32:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:48,902 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-13 18:32:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:32:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat