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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.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--gl620a.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 00:53:40,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 00:53:40,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 00:53:40,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 00:53:40,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 00:53:40,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 00:53:40,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 00:53:40,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 00:53:40,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 00:53:40,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 00:53:40,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 00:53:40,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 00:53:40,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 00:53:40,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 00:53:40,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 00:53:40,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 00:53:40,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 00:53:40,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 00:53:40,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 00:53:40,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 00:53:40,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 00:53:40,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 00:53:40,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 00:53:40,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 00:53:40,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 00:53:40,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 00:53:40,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 00:53:40,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 00:53:40,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 00:53:40,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 00:53:40,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 00:53:40,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 00:53:40,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 00:53:40,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 00:53:40,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 00:53:40,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 00:53:40,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 00:53:40,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 00:53:40,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 00:53:40,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 00:53:40,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 00:53:40,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 00:53:40,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 00:53:40,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 00:53:40,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 00:53:40,823 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 00:53:40,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 00:53:40,824 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 00:53:40,824 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 00:53:40,825 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 00:53:40,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 00:53:40,825 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 00:53:40,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 00:53:40,826 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 00:53:40,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 00:53:40,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 00:53:40,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 00:53:40,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 00:53:40,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 00:53:40,827 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 00:53:40,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 00:53:40,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 00:53:40,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 00:53:40,828 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 00:53:40,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 00:53:40,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 00:53:40,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 00:53:40,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 00:53:40,829 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 00:53:40,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 00:53:40,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 00:53:40,830 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 00:53:40,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 00:53:40,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 00:53:40,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 00:53:40,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 00:53:40,883 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 00:53:40,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-03 00:53:40,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9296f86/e518a83356434e70b09dab8b6a3303a6/FLAGd8b351e18 [2019-10-03 00:53:41,713 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 00:53:41,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-03 00:53:41,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9296f86/e518a83356434e70b09dab8b6a3303a6/FLAGd8b351e18 [2019-10-03 00:53:41,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9296f86/e518a83356434e70b09dab8b6a3303a6 [2019-10-03 00:53:41,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 00:53:41,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 00:53:41,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 00:53:41,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 00:53:41,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 00:53:41,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:53:41" (1/1) ... [2019-10-03 00:53:41,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd009ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:41, skipping insertion in model container [2019-10-03 00:53:41,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:53:41" (1/1) ... [2019-10-03 00:53:41,824 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 00:53:41,963 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 00:53:43,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 00:53:43,316 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 00:53:43,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 00:53:43,768 INFO L192 MainTranslator]: Completed translation [2019-10-03 00:53:43,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43 WrapperNode [2019-10-03 00:53:43,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 00:53:43,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 00:53:43,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 00:53:43,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 00:53:43,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:43,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:43,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:43,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:43,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:44,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:44,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (1/1) ... [2019-10-03 00:53:44,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 00:53:44,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 00:53:44,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 00:53:44,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 00:53:44,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (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 [2019-10-03 00:53:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 00:53:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 00:53:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-03 00:53:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-03 00:53:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-03 00:53:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-03 00:53:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-10-03 00:53:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2019-10-03 00:53:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-03 00:53:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-03 00:53:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 00:53:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 00:53:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 00:53:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 00:53:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 00:53:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 00:53:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 00:53:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 00:53:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-03 00:53:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-03 00:53:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-03 00:53:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2019-10-03 00:53:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2019-10-03 00:53:44,164 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_bind [2019-10-03 00:53:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_init [2019-10-03 00:53:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_exit [2019-10-03 00:53:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-10-03 00:53:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-03 00:53:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 00:53:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-03 00:53:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-03 00:53:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-03 00:53:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-03 00:53:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-03 00:53:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_13 [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_14 [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-03 00:53:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-03 00:53:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-03 00:53:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-03 00:53:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-03 00:53:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-03 00:53:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-03 00:53:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-03 00:53:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 00:53:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-03 00:53:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-03 00:53:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-03 00:53:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-03 00:53:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-03 00:53:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 00:53:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-03 00:53:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-03 00:53:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-03 00:53:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-10-03 00:53:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-10-03 00:53:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-03 00:53:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-03 00:53:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-03 00:53:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-03 00:53:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-03 00:53:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-10-03 00:53:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-10-03 00:53:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-10-03 00:53:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-10-03 00:53:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-10-03 00:53:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 00:53:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 00:53:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 00:53:44,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 00:53:44,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-03 00:53:44,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-03 00:53:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 00:53:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 00:53:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-03 00:53:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 00:53:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-03 00:53:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-03 00:53:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 00:53:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-03 00:53:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-03 00:53:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-03 00:53:44,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-03 00:53:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-03 00:53:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2019-10-03 00:53:44,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-10-03 00:53:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-03 00:53:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 00:53:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-03 00:53:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-03 00:53:44,186 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-03 00:53:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-03 00:53:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-03 00:53:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-03 00:53:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-03 00:53:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 00:53:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 00:53:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 00:53:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 00:53:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 00:53:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 00:53:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 00:53:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 00:53:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 00:53:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 00:53:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 00:53:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 00:53:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 00:53:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 00:53:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 00:53:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-03 00:53:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-10-03 00:53:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-03 00:53:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-03 00:53:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-03 00:53:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-03 00:53:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_13 [2019-10-03 00:53:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-03 00:53:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_14 [2019-10-03 00:53:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-03 00:53:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-03 00:53:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-10-03 00:53:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-10-03 00:53:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-10-03 00:53:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-10-03 00:53:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-10-03 00:53:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2019-10-03 00:53:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 00:53:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-03 00:53:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 00:53:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 00:53:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2019-10-03 00:53:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-03 00:53:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_bind [2019-10-03 00:53:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_init [2019-10-03 00:53:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_exit [2019-10-03 00:53:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-10-03 00:53:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-03 00:53:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 00:53:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 00:53:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-03 00:53:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-03 00:53:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-03 00:53:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-03 00:53:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-03 00:53:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-03 00:53:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 00:53:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-03 00:53:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-03 00:53:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-03 00:53:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-03 00:53:44,859 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 00:53:46,132 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 00:53:46,132 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 00:53:46,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:53:46 BoogieIcfgContainer [2019-10-03 00:53:46,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 00:53:46,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 00:53:46,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 00:53:46,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 00:53:46,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 12:53:41" (1/3) ... [2019-10-03 00:53:46,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ce41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:53:46, skipping insertion in model container [2019-10-03 00:53:46,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:53:43" (2/3) ... [2019-10-03 00:53:46,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608ce41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:53:46, skipping insertion in model container [2019-10-03 00:53:46,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:53:46" (3/3) ... [2019-10-03 00:53:46,147 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2019-10-03 00:53:46,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 00:53:46,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 00:53:46,190 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 00:53:46,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 00:53:46,225 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 00:53:46,225 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 00:53:46,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 00:53:46,226 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 00:53:46,226 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 00:53:46,226 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 00:53:46,226 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 00:53:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states. [2019-10-03 00:53:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-03 00:53:46,308 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:46,309 INFO L411 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] [2019-10-03 00:53:46,313 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:46,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:46,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1066215107, now seen corresponding path program 1 times [2019-10-03 00:53:46,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:46,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:46,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:46,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:46,454 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 00:53:47,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:47,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:53:47,076 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:47,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:53:47,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:53:47,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:47,107 INFO L87 Difference]: Start difference. First operand 376 states. Second operand 3 states. [2019-10-03 00:53:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:47,315 INFO L93 Difference]: Finished difference Result 645 states and 807 transitions. [2019-10-03 00:53:47,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:53:47,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-10-03 00:53:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:47,355 INFO L225 Difference]: With dead ends: 645 [2019-10-03 00:53:47,355 INFO L226 Difference]: Without dead ends: 628 [2019-10-03 00:53:47,359 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:47,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-10-03 00:53:47,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2019-10-03 00:53:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-03 00:53:47,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 782 transitions. [2019-10-03 00:53:47,495 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 782 transitions. Word has length 66 [2019-10-03 00:53:47,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:47,496 INFO L475 AbstractCegarLoop]: Abstraction has 628 states and 782 transitions. [2019-10-03 00:53:47,496 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:53:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 782 transitions. [2019-10-03 00:53:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-03 00:53:47,501 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:47,501 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-03 00:53:47,502 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:47,502 INFO L82 PathProgramCache]: Analyzing trace with hash 585963417, now seen corresponding path program 1 times [2019-10-03 00:53:47,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:47,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:47,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:47,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:47,511 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-03 00:53:47,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:47,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 00:53:47,841 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:47,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 00:53:47,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 00:53:47,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 00:53:47,843 INFO L87 Difference]: Start difference. First operand 628 states and 782 transitions. Second operand 6 states. [2019-10-03 00:53:48,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:48,423 INFO L93 Difference]: Finished difference Result 1232 states and 1544 transitions. [2019-10-03 00:53:48,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 00:53:48,424 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2019-10-03 00:53:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:48,434 INFO L225 Difference]: With dead ends: 1232 [2019-10-03 00:53:48,435 INFO L226 Difference]: Without dead ends: 1211 [2019-10-03 00:53:48,436 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 00:53:48,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2019-10-03 00:53:48,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2019-10-03 00:53:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2019-10-03 00:53:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1521 transitions. [2019-10-03 00:53:48,530 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1521 transitions. Word has length 82 [2019-10-03 00:53:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:48,536 INFO L475 AbstractCegarLoop]: Abstraction has 1211 states and 1521 transitions. [2019-10-03 00:53:48,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 00:53:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1521 transitions. [2019-10-03 00:53:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-03 00:53:48,548 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:48,549 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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, 1, 1] [2019-10-03 00:53:48,549 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:48,550 INFO L82 PathProgramCache]: Analyzing trace with hash 671450202, now seen corresponding path program 1 times [2019-10-03 00:53:48,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:48,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:48,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:48,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:48,557 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-03 00:53:48,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:48,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:53:48,791 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:48,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:53:48,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:53:48,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:48,794 INFO L87 Difference]: Start difference. First operand 1211 states and 1521 transitions. Second operand 3 states. [2019-10-03 00:53:48,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:48,880 INFO L93 Difference]: Finished difference Result 1549 states and 1959 transitions. [2019-10-03 00:53:48,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:53:48,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-03 00:53:48,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:48,892 INFO L225 Difference]: With dead ends: 1549 [2019-10-03 00:53:48,892 INFO L226 Difference]: Without dead ends: 1549 [2019-10-03 00:53:48,894 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2019-10-03 00:53:48,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1525. [2019-10-03 00:53:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2019-10-03 00:53:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1936 transitions. [2019-10-03 00:53:48,954 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1936 transitions. Word has length 159 [2019-10-03 00:53:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:48,955 INFO L475 AbstractCegarLoop]: Abstraction has 1525 states and 1936 transitions. [2019-10-03 00:53:48,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:53:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1936 transitions. [2019-10-03 00:53:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-03 00:53:48,963 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:48,964 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:53:48,964 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:48,964 INFO L82 PathProgramCache]: Analyzing trace with hash -871647698, now seen corresponding path program 1 times [2019-10-03 00:53:48,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:48,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:48,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:48,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:48,971 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2019-10-03 00:53:49,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:49,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:53:49,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:49,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:53:49,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:53:49,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:49,200 INFO L87 Difference]: Start difference. First operand 1525 states and 1936 transitions. Second operand 3 states. [2019-10-03 00:53:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:49,326 INFO L93 Difference]: Finished difference Result 2589 states and 3245 transitions. [2019-10-03 00:53:49,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:53:49,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-03 00:53:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:49,342 INFO L225 Difference]: With dead ends: 2589 [2019-10-03 00:53:49,343 INFO L226 Difference]: Without dead ends: 2589 [2019-10-03 00:53:49,343 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:53:49,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2019-10-03 00:53:49,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2565. [2019-10-03 00:53:49,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2565 states. [2019-10-03 00:53:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3222 transitions. [2019-10-03 00:53:49,448 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3222 transitions. Word has length 194 [2019-10-03 00:53:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:49,451 INFO L475 AbstractCegarLoop]: Abstraction has 2565 states and 3222 transitions. [2019-10-03 00:53:49,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:53:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3222 transitions. [2019-10-03 00:53:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-03 00:53:49,459 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:49,460 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:53:49,461 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:49,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:49,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1042186454, now seen corresponding path program 1 times [2019-10-03 00:53:49,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:49,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:49,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:49,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:49,469 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-10-03 00:53:49,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:49,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 00:53:49,720 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:49,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 00:53:49,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 00:53:49,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 00:53:49,721 INFO L87 Difference]: Start difference. First operand 2565 states and 3222 transitions. Second operand 5 states. [2019-10-03 00:53:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:49,780 INFO L93 Difference]: Finished difference Result 2619 states and 3285 transitions. [2019-10-03 00:53:49,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 00:53:49,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2019-10-03 00:53:49,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:49,797 INFO L225 Difference]: With dead ends: 2619 [2019-10-03 00:53:49,797 INFO L226 Difference]: Without dead ends: 2619 [2019-10-03 00:53:49,798 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 00:53:49,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2019-10-03 00:53:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2605. [2019-10-03 00:53:49,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2019-10-03 00:53:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3270 transitions. [2019-10-03 00:53:49,906 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3270 transitions. Word has length 194 [2019-10-03 00:53:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:49,907 INFO L475 AbstractCegarLoop]: Abstraction has 2605 states and 3270 transitions. [2019-10-03 00:53:49,907 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 00:53:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3270 transitions. [2019-10-03 00:53:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-03 00:53:50,011 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:50,012 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:53:50,013 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:50,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:50,014 INFO L82 PathProgramCache]: Analyzing trace with hash -338348745, now seen corresponding path program 1 times [2019-10-03 00:53:50,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:50,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:50,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:50,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:50,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-03 00:53:50,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:53:50,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 00:53:50,294 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:50,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 00:53:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 00:53:50,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 00:53:50,295 INFO L87 Difference]: Start difference. First operand 2605 states and 3270 transitions. Second operand 4 states. [2019-10-03 00:53:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:50,349 INFO L93 Difference]: Finished difference Result 2608 states and 3273 transitions. [2019-10-03 00:53:50,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 00:53:50,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2019-10-03 00:53:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:50,372 INFO L225 Difference]: With dead ends: 2608 [2019-10-03 00:53:50,372 INFO L226 Difference]: Without dead ends: 2606 [2019-10-03 00:53:50,373 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 00:53:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2019-10-03 00:53:50,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2606. [2019-10-03 00:53:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2606 states. [2019-10-03 00:53:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3271 transitions. [2019-10-03 00:53:50,469 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3271 transitions. Word has length 200 [2019-10-03 00:53:50,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:50,470 INFO L475 AbstractCegarLoop]: Abstraction has 2606 states and 3271 transitions. [2019-10-03 00:53:50,471 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 00:53:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3271 transitions. [2019-10-03 00:53:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-03 00:53:50,484 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:53:50,485 INFO L411 BasicCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:53:50,485 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:53:50,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:50,486 INFO L82 PathProgramCache]: Analyzing trace with hash -986780509, now seen corresponding path program 1 times [2019-10-03 00:53:50,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:53:50,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:50,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:53:50,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:53:50,492 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:53:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:53:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-03 00:53:50,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 00:53:50,799 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 00:53:50,800 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2019-10-03 00:53:50,803 INFO L207 CegarAbsIntRunner]: [28], [29], [37], [38], [44], [45], [46], [47], [52], [53], [54], [56], [58], [59], [114], [116], [117], [123], [125], [126], [127], [129], [133], [135], [136], [157], [160], [162], [163], [166], [168], [169], [182], [186], [188], [189], [192], [193], [209], [211], [212], [217], [219], [221], [224], [226], [228], [345], [348], [351], [354], [357], [359], [363], [366], [369], [371], [374], [383], [402], [405], [408], [411], [414], [416], [426], [512], [521], [526], [538], [542], [545], [546], [601], [602], [650], [654], [667], [669], [671], [684], [686], [696], [698], [700], [704], [706], [708], [721], [722], [726], [779], [781], [783], [784], [789], [791], [796], [800], [803], [804], [806], [807], [813], [814], [817], [818], [819], [820], [829], [830], [833], [834], [835], [836], [837], [838], [841], [842], [843], [844], [855], [856], [857], [858], [859], [860], [861], [862], [863], [864], [865], [866], [881], [882], [883], [884], [885], [886], [889], [890], [905], [927], [928], [931], [932], [939], [940], [941], [942], [945], [946], [963], [964], [965], [966], [969], [970], [971], [973], [974], [975], [976], [977] [2019-10-03 00:53:50,865 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 00:53:50,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 00:53:50,949 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 00:53:50,951 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 103 root evaluator evaluations with a maximum evaluation depth of 0. Performed 103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 190 variables. [2019-10-03 00:53:50,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:53:50,956 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 00:53:51,027 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 00:53:51,027 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 00:53:51,033 INFO L420 sIntCurrentIteration]: We unified 201 AI predicates to 201 [2019-10-03 00:53:51,033 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 00:53:51,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 00:53:51,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-10-03 00:53:51,035 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:53:51,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 00:53:51,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 00:53:51,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 00:53:51,036 INFO L87 Difference]: Start difference. First operand 2606 states and 3271 transitions. Second operand 2 states. [2019-10-03 00:53:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:53:51,037 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 00:53:51,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 00:53:51,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 202 [2019-10-03 00:53:51,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:53:51,037 INFO L225 Difference]: With dead ends: 2 [2019-10-03 00:53:51,037 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 00:53:51,038 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 00:53:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 00:53:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 00:53:51,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 00:53:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 00:53:51,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2019-10-03 00:53:51,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:53:51,039 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 00:53:51,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 00:53:51,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 00:53:51,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 00:53:51,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 12:53:51 BoogieIcfgContainer [2019-10-03 00:53:51,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 00:53:51,047 INFO L168 Benchmark]: Toolchain (without parser) took 9239.37 ms. Allocated memory was 129.0 MB in the beginning and 406.3 MB in the end (delta: 277.3 MB). Free memory was 77.2 MB in the beginning and 104.9 MB in the end (delta: -27.6 MB). Peak memory consumption was 249.7 MB. Max. memory is 7.1 GB. [2019-10-03 00:53:51,048 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 129.0 MB. Free memory is still 102.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 00:53:51,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1961.71 ms. Allocated memory was 129.0 MB in the beginning and 210.2 MB in the end (delta: 81.3 MB). Free memory was 76.8 MB in the beginning and 100.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. [2019-10-03 00:53:51,050 INFO L168 Benchmark]: Boogie Preprocessor took 283.67 ms. Allocated memory is still 210.2 MB. Free memory was 100.8 MB in the beginning and 91.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-03 00:53:51,051 INFO L168 Benchmark]: RCFGBuilder took 2080.03 ms. Allocated memory was 210.2 MB in the beginning and 279.4 MB in the end (delta: 69.2 MB). Free memory was 91.7 MB in the beginning and 76.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2019-10-03 00:53:51,052 INFO L168 Benchmark]: TraceAbstraction took 4909.33 ms. Allocated memory was 279.4 MB in the beginning and 406.3 MB in the end (delta: 126.9 MB). Free memory was 76.1 MB in the beginning and 104.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. [2019-10-03 00:53:51,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 129.0 MB. Free memory is still 102.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1961.71 ms. Allocated memory was 129.0 MB in the beginning and 210.2 MB in the end (delta: 81.3 MB). Free memory was 76.8 MB in the beginning and 100.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 63.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 283.67 ms. Allocated memory is still 210.2 MB. Free memory was 100.8 MB in the beginning and 91.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2080.03 ms. Allocated memory was 210.2 MB in the beginning and 279.4 MB in the end (delta: 69.2 MB). Free memory was 91.7 MB in the beginning and 76.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4909.33 ms. Allocated memory was 279.4 MB in the beginning and 406.3 MB in the end (delta: 126.9 MB). Free memory was 76.1 MB in the beginning and 104.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5634]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 75 procedures, 473 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3000 SDtfs, 1326 SDslu, 5138 SDs, 0 SdLazy, 241 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2606occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.1393034825870645 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 62 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1097 NumberOfCodeBlocks, 1097 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1090 ConstructedInterpolants, 0 QuantifiedInterpolants, 210507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 478/485 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...