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--cx82310_eth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 11:02:42,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:02:42,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:02:42,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:02:42,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:02:42,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:02:42,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:02:42,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:02:42,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:02:42,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:02:42,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:02:42,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:02:42,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:02:42,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:02:42,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:02:42,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:02:42,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:02:42,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:02:42,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:02:42,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:02:42,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:02:42,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:02:42,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:02:42,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:02:42,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:02:42,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:02:42,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:02:42,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:02:42,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:02:42,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:02:42,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:02:42,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:02:42,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:02:42,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:02:42,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:02:42,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:02:42,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:02:42,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:02:42,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:02:42,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:02:42,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:02:42,954 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 [2019-09-10 11:02:42,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:02:42,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:02:42,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:02:42,969 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:02:42,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:02:42,970 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:02:42,970 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:02:42,970 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:02:42,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:02:42,971 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:02:42,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:02:42,972 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:02:42,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:02:42,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:02:42,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:02:42,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:02:42,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:02:42,973 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:02:42,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:02:42,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:02:42,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:02:42,974 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:02:42,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:02:42,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:02:42,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:02:42,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:02:42,975 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:02:42,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:02:42,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:02:42,975 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:02:43,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:02:43,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:02:43,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:02:43,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:02:43,020 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:02:43,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2019-09-10 11:02:43,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7cf8539/e4a8e65c841b4c489dc568afa3e96563/FLAG7cd2a4d3b [2019-09-10 11:02:43,843 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:02:43,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2019-09-10 11:02:43,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7cf8539/e4a8e65c841b4c489dc568afa3e96563/FLAG7cd2a4d3b [2019-09-10 11:02:43,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc7cf8539/e4a8e65c841b4c489dc568afa3e96563 [2019-09-10 11:02:43,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:02:43,936 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:02:43,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:02:43,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:02:43,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:02:43,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:02:43" (1/1) ... [2019-09-10 11:02:43,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df518fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:43, skipping insertion in model container [2019-09-10 11:02:43,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:02:43" (1/1) ... [2019-09-10 11:02:43,952 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:02:44,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:02:45,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:02:45,398 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:02:45,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:02:45,754 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:02:45,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45 WrapperNode [2019-09-10 11:02:45,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:02:45,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:02:45,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:02:45,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:02:45,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (1/1) ... [2019-09-10 11:02:45,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:02:45,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:02:45,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:02:45,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:02:45,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (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 [2019-09-10 11:02:46,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:02:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:02:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 11:02:46,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 11:02:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-10 11:02:46,012 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-09-10 11:02:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:02:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:02:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:02:46,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:02:46,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 11:02:46,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-10 11:02:46,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-09-10 11:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-10 11:02:46,017 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2019-09-10 11:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_bind [2019-09-10 11:02:46,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_unbind [2019-09-10 11:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2019-09-10 11:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2019-09-10 11:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_init [2019-09-10 11:02:46,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_exit [2019-09-10 11:02:46,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-09-10 11:02:46,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-10 11:02:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:02:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-09-10 11:02:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-09-10 11:02:46,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-09-10 11:02:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-09-10 11:02:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-09-10 11:02:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2019-09-10 11:02:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-09-10 11:02:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-09-10 11:02:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 11:02:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 11:02:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 11:02:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 11:02:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-09-10 11:02:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:02:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-09-10 11:02:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-09-10 11:02:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-10 11:02:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-10 11:02:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-09-10 11:02:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-09-10 11:02:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-10 11:02:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-10 11:02:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2019-09-10 11:02:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-09-10 11:02:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2019-09-10 11:02:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-09-10 11:02:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-09-10 11:02:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-09-10 11:02:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-09-10 11:02:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:02:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:02:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:02:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:02:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-10 11:02:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:02:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 11:02:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:02:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-10 11:02:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:02:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:02:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 11:02:46,034 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 11:02:46,035 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-10 11:02:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-10 11:02:46,036 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-09-10 11:02:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2019-09-10 11:02:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:02:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:02:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:02:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:02:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:02:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:02:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:02:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:02:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-10 11:02:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-09-10 11:02:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-10 11:02:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-09-10 11:02:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-09-10 11:02:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-10 11:02:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2019-09-10 11:02:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-10 11:02:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2019-09-10 11:02:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-09-10 11:02:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2019-09-10 11:02:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-10 11:02:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:02:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-10 11:02:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-09-10 11:02:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-09-10 11:02:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-09-10 11:02:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-09-10 11:02:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2019-09-10 11:02:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-09-10 11:02:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2019-09-10 11:02:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:02:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-10 11:02:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:02:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:02:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_bind [2019-09-10 11:02:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_unbind [2019-09-10 11:02:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2019-09-10 11:02:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_init [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_exit [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:02:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:02:46,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:02:46,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-09-10 11:02:46,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-10 11:02:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:02:46,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 11:02:46,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:02:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-10 11:02:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-10 11:02:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-10 11:02:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-10 11:02:46,710 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:02:47,616 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:02:47,617 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 11:02:47,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:02:47 BoogieIcfgContainer [2019-09-10 11:02:47,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:02:47,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:02:47,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:02:47,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:02:47,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:02:43" (1/3) ... [2019-09-10 11:02:47,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e2faf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:02:47, skipping insertion in model container [2019-09-10 11:02:47,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:02:45" (2/3) ... [2019-09-10 11:02:47,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e2faf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:02:47, skipping insertion in model container [2019-09-10 11:02:47,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:02:47" (3/3) ... [2019-09-10 11:02:47,627 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 [2019-09-10 11:02:47,637 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:02:47,646 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:02:47,664 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:02:47,692 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:02:47,692 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:02:47,692 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:02:47,693 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:02:47,693 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:02:47,693 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:02:47,693 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:02:47,693 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:02:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-09-10 11:02:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 11:02:47,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:47,800 INFO L399 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] [2019-09-10 11:02:47,803 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:47,809 INFO L82 PathProgramCache]: Analyzing trace with hash 428026574, now seen corresponding path program 1 times [2019-09-10 11:02:47,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:47,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:47,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:47,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:47,906 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 11:02:48,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:02:48,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:02:48,356 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:48,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:02:48,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:02:48,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:02:48,379 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 3 states. [2019-09-10 11:02:48,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:48,566 INFO L93 Difference]: Finished difference Result 727 states and 941 transitions. [2019-09-10 11:02:48,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:02:48,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-10 11:02:48,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:48,593 INFO L225 Difference]: With dead ends: 727 [2019-09-10 11:02:48,593 INFO L226 Difference]: Without dead ends: 710 [2019-09-10 11:02:48,595 INFO L628 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 [2019-09-10 11:02:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-09-10 11:02:48,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2019-09-10 11:02:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-09-10 11:02:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 916 transitions. [2019-09-10 11:02:48,742 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 916 transitions. Word has length 60 [2019-09-10 11:02:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:48,743 INFO L475 AbstractCegarLoop]: Abstraction has 710 states and 916 transitions. [2019-09-10 11:02:48,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:02:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 916 transitions. [2019-09-10 11:02:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-10 11:02:48,749 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:48,749 INFO L399 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] [2019-09-10 11:02:48,750 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:48,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:48,750 INFO L82 PathProgramCache]: Analyzing trace with hash -686633077, now seen corresponding path program 1 times [2019-09-10 11:02:48,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:48,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:48,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:48,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:48,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 11:02:49,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:02:49,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 11:02:49,005 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:49,006 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 11:02:49,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 11:02:49,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 11:02:49,007 INFO L87 Difference]: Start difference. First operand 710 states and 916 transitions. Second operand 6 states. [2019-09-10 11:02:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:49,645 INFO L93 Difference]: Finished difference Result 1398 states and 1817 transitions. [2019-09-10 11:02:49,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 11:02:49,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2019-09-10 11:02:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:49,659 INFO L225 Difference]: With dead ends: 1398 [2019-09-10 11:02:49,716 INFO L226 Difference]: Without dead ends: 1377 [2019-09-10 11:02:49,717 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 11:02:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2019-09-10 11:02:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2019-09-10 11:02:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1377 states. [2019-09-10 11:02:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1794 transitions. [2019-09-10 11:02:49,772 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1794 transitions. Word has length 76 [2019-09-10 11:02:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:49,773 INFO L475 AbstractCegarLoop]: Abstraction has 1377 states and 1794 transitions. [2019-09-10 11:02:49,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 11:02:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1794 transitions. [2019-09-10 11:02:49,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 11:02:49,785 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:49,785 INFO L399 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] [2019-09-10 11:02:49,786 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:49,786 INFO L82 PathProgramCache]: Analyzing trace with hash -566202684, now seen corresponding path program 1 times [2019-09-10 11:02:49,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:49,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:49,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:49,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:49,793 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 11:02:49,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:02:49,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:02:49,969 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:49,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:02:49,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:02:49,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:02:49,971 INFO L87 Difference]: Start difference. First operand 1377 states and 1794 transitions. Second operand 3 states. [2019-09-10 11:02:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:50,061 INFO L93 Difference]: Finished difference Result 1715 states and 2232 transitions. [2019-09-10 11:02:50,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:02:50,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2019-09-10 11:02:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:50,077 INFO L225 Difference]: With dead ends: 1715 [2019-09-10 11:02:50,078 INFO L226 Difference]: Without dead ends: 1715 [2019-09-10 11:02:50,078 INFO L628 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 [2019-09-10 11:02:50,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2019-09-10 11:02:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1691. [2019-09-10 11:02:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1691 states. [2019-09-10 11:02:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2209 transitions. [2019-09-10 11:02:50,161 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2209 transitions. Word has length 116 [2019-09-10 11:02:50,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:50,162 INFO L475 AbstractCegarLoop]: Abstraction has 1691 states and 2209 transitions. [2019-09-10 11:02:50,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:02:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2209 transitions. [2019-09-10 11:02:50,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 11:02:50,171 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:50,172 INFO L399 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] [2019-09-10 11:02:50,172 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:50,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:50,172 INFO L82 PathProgramCache]: Analyzing trace with hash 856947118, now seen corresponding path program 1 times [2019-09-10 11:02:50,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:50,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:50,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:50,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:50,180 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-09-10 11:02:50,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:02:50,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:02:50,383 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:50,385 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:02:50,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:02:50,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:02:50,386 INFO L87 Difference]: Start difference. First operand 1691 states and 2209 transitions. Second operand 3 states. [2019-09-10 11:02:50,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:50,492 INFO L93 Difference]: Finished difference Result 2587 states and 3336 transitions. [2019-09-10 11:02:50,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:02:50,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-09-10 11:02:50,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:50,508 INFO L225 Difference]: With dead ends: 2587 [2019-09-10 11:02:50,508 INFO L226 Difference]: Without dead ends: 2587 [2019-09-10 11:02:50,509 INFO L628 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 [2019-09-10 11:02:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2019-09-10 11:02:50,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2563. [2019-09-10 11:02:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2019-09-10 11:02:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3313 transitions. [2019-09-10 11:02:50,609 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3313 transitions. Word has length 157 [2019-09-10 11:02:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:50,610 INFO L475 AbstractCegarLoop]: Abstraction has 2563 states and 3313 transitions. [2019-09-10 11:02:50,610 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:02:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3313 transitions. [2019-09-10 11:02:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 11:02:50,616 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:50,616 INFO L399 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] [2019-09-10 11:02:50,617 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:50,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:50,617 INFO L82 PathProgramCache]: Analyzing trace with hash -2101355918, now seen corresponding path program 1 times [2019-09-10 11:02:50,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:50,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:50,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:50,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:50,621 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-09-10 11:02:50,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:02:50,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:02:50,916 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:50,918 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:02:50,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:02:50,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:02:50,919 INFO L87 Difference]: Start difference. First operand 2563 states and 3313 transitions. Second operand 5 states. [2019-09-10 11:02:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:50,985 INFO L93 Difference]: Finished difference Result 2617 states and 3377 transitions. [2019-09-10 11:02:50,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 11:02:50,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2019-09-10 11:02:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:51,005 INFO L225 Difference]: With dead ends: 2617 [2019-09-10 11:02:51,005 INFO L226 Difference]: Without dead ends: 2617 [2019-09-10 11:02:51,006 INFO L628 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 [2019-09-10 11:02:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2019-09-10 11:02:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2603. [2019-09-10 11:02:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2603 states. [2019-09-10 11:02:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3363 transitions. [2019-09-10 11:02:51,126 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3363 transitions. Word has length 157 [2019-09-10 11:02:51,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:51,127 INFO L475 AbstractCegarLoop]: Abstraction has 2603 states and 3363 transitions. [2019-09-10 11:02:51,128 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:02:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3363 transitions. [2019-09-10 11:02:51,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-09-10 11:02:51,137 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:02:51,137 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2019-09-10 11:02:51,137 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:02:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:51,138 INFO L82 PathProgramCache]: Analyzing trace with hash -791527107, now seen corresponding path program 1 times [2019-09-10 11:02:51,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:02:51,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:51,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:02:51,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:02:51,147 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:02:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:02:51,340 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-09-10 11:02:51,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:02:51,341 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:02:51,342 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2019-09-10 11:02:51,345 INFO L207 CegarAbsIntRunner]: [30], [31], [41], [42], [48], [49], [50], [51], [78], [80], [82], [84], [85], [121], [123], [124], [132], [135], [137], [140], [210], [211], [213], [214], [217], [219], [223], [225], [226], [245], [252], [254], [255], [266], [272], [273], [326], [327], [345], [347], [350], [352], [354], [471], [474], [477], [480], [483], [485], [489], [492], [495], [497], [500], [509], [528], [531], [534], [537], [540], [542], [552], [638], [647], [652], [664], [668], [671], [672], [725], [726], [742], [744], [745], [765], [768], [770], [772], [773], [877], [879], [884], [888], [891], [892], [894], [895], [901], [902], [913], [914], [915], [916], [917], [918], [923], [924], [927], [928], [957], [958], [959], [960], [961], [962], [967], [968], [993], [994], [995], [996], [997], [998], [999], [1000], [1015], [1016], [1017], [1018], [1019], [1020], [1023], [1024], [1039], [1047], [1048], [1057], [1058], [1059], [1060], [1061], [1062], [1083], [1084], [1085], [1087], [1088], [1089], [1090], [1091] [2019-09-10 11:02:51,406 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:02:51,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:02:51,510 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:02:51,512 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 99 root evaluator evaluations with a maximum evaluation depth of 0. Performed 99 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 180 variables. [2019-09-10 11:02:51,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:02:51,517 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:02:51,584 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:02:51,584 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:02:51,591 INFO L420 sIntCurrentIteration]: We unified 162 AI predicates to 162 [2019-09-10 11:02:51,591 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:02:51,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:02:51,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-10 11:02:51,593 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:02:51,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:02:51,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:02:51,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:02:51,594 INFO L87 Difference]: Start difference. First operand 2603 states and 3363 transitions. Second operand 2 states. [2019-09-10 11:02:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:02:51,594 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:02:51,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:02:51,595 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 163 [2019-09-10 11:02:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:02:51,595 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:02:51,595 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:02:51,596 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:02:51,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:02:51,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:02:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:02:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:02:51,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 163 [2019-09-10 11:02:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:02:51,597 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:02:51,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:02:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:02:51,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:02:51,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:02:51 BoogieIcfgContainer [2019-09-10 11:02:51,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:02:51,606 INFO L168 Benchmark]: Toolchain (without parser) took 7669.23 ms. Allocated memory was 140.0 MB in the beginning and 357.0 MB in the end (delta: 217.1 MB). Free memory was 80.1 MB in the beginning and 159.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 137.6 MB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,607 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1818.14 ms. Allocated memory was 140.0 MB in the beginning and 222.8 MB in the end (delta: 82.8 MB). Free memory was 79.9 MB in the beginning and 113.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,609 INFO L168 Benchmark]: Boogie Preprocessor took 186.87 ms. Allocated memory is still 222.8 MB. Free memory was 113.6 MB in the beginning and 104.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,610 INFO L168 Benchmark]: RCFGBuilder took 1675.50 ms. Allocated memory was 222.8 MB in the beginning and 266.9 MB in the end (delta: 44.0 MB). Free memory was 104.9 MB in the beginning and 73.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,611 INFO L168 Benchmark]: TraceAbstraction took 3983.26 ms. Allocated memory was 266.9 MB in the beginning and 357.0 MB in the end (delta: 90.2 MB). Free memory was 73.8 MB in the beginning and 159.5 MB in the end (delta: -85.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 11:02:51,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1818.14 ms. Allocated memory was 140.0 MB in the beginning and 222.8 MB in the end (delta: 82.8 MB). Free memory was 79.9 MB in the beginning and 113.6 MB in the end (delta: -33.7 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 186.87 ms. Allocated memory is still 222.8 MB. Free memory was 113.6 MB in the beginning and 104.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1675.50 ms. Allocated memory was 222.8 MB in the beginning and 266.9 MB in the end (delta: 44.0 MB). Free memory was 104.9 MB in the beginning and 73.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3983.26 ms. Allocated memory was 266.9 MB in the beginning and 357.0 MB in the end (delta: 90.2 MB). Free memory was 73.8 MB in the beginning and 159.5 MB in the end (delta: -85.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5562]: 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 76 procedures, 513 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2942 SDtfs, 1522 SDslu, 4910 SDs, 0 SdLazy, 259 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2603occurred in iteration=5, 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, 2.1666666666666665 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 62 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 723 ConstructedInterpolants, 0 QuantifiedInterpolants, 111753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 253/256 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...