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_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 10:58:04,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 10:58:04,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 10:58:04,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 10:58:04,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 10:58:04,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 10:58:04,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 10:58:04,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 10:58:04,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 10:58:04,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 10:58:04,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 10:58:04,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 10:58:04,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 10:58:04,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 10:58:04,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 10:58:04,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 10:58:04,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 10:58:04,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 10:58:04,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 10:58:04,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 10:58:04,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 10:58:04,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 10:58:04,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 10:58:04,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 10:58:04,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 10:58:04,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 10:58:04,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 10:58:04,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 10:58:04,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 10:58:04,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 10:58:04,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 10:58:04,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 10:58:04,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 10:58:04,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 10:58:04,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 10:58:04,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 10:58:04,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 10:58:04,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 10:58:04,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 10:58:04,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 10:58:04,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 10:58:04,888 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 10:58:04,904 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 10:58:04,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 10:58:04,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 10:58:04,905 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 10:58:04,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 10:58:04,906 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 10:58:04,906 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 10:58:04,906 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 10:58:04,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 10:58:04,907 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 10:58:04,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 10:58:04,908 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 10:58:04,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 10:58:04,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 10:58:04,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 10:58:04,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 10:58:04,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 10:58:04,909 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 10:58:04,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 10:58:04,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 10:58:04,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 10:58:04,910 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 10:58:04,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 10:58:04,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 10:58:04,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 10:58:04,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 10:58:04,911 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 10:58:04,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 10:58:04,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 10:58:04,911 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 10:58:04,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 10:58:04,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 10:58:04,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 10:58:04,975 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 10:58:04,975 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 10:58:04,976 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-09-10 10:58:05,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92196be39/9b7144ea20bd477eab9e0d9a4a8038be/FLAG1842e83fd [2019-09-10 10:58:05,920 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 10:58:05,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-09-10 10:58:05,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92196be39/9b7144ea20bd477eab9e0d9a4a8038be/FLAG1842e83fd [2019-09-10 10:58:06,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92196be39/9b7144ea20bd477eab9e0d9a4a8038be [2019-09-10 10:58:06,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 10:58:06,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 10:58:06,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 10:58:06,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 10:58:06,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 10:58:06,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:58:06" (1/1) ... [2019-09-10 10:58:06,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8306c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:06, skipping insertion in model container [2019-09-10 10:58:06,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:58:06" (1/1) ... [2019-09-10 10:58:06,438 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 10:58:06,555 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 10:58:08,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 10:58:08,154 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 10:58:08,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 10:58:08,576 INFO L192 MainTranslator]: Completed translation [2019-09-10 10:58:08,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08 WrapperNode [2019-09-10 10:58:08,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 10:58:08,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 10:58:08,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 10:58:08,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 10:58:08,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (1/1) ... [2019-09-10 10:58:08,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 10:58:08,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 10:58:08,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 10:58:08,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 10:58:08,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (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 10:58:08,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 10:58:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 10:58:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-09-10 10:58:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-09-10 10:58:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2019-09-10 10:58:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-09-10 10:58:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-09-10 10:58:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2019-09-10 10:58:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-09-10 10:58:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-10 10:58:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-09-10 10:58:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-09-10 10:58:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-09-10 10:58:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-09-10 10:58:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2019-09-10 10:58:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-09-10 10:58:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-09-10 10:58:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 10:58:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 10:58:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 10:58:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 10:58:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 10:58:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-09-10 10:58:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-09-10 10:58:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2019-09-10 10:58:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-09-10 10:58:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2019-09-10 10:58:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-10 10:58:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2019-09-10 10:58:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2019-09-10 10:58:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2019-09-10 10:58:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2019-09-10 10:58:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-09-10 10:58:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-09-10 10:58:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-09-10 10:58:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2019-09-10 10:58:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2019-09-10 10:58:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-09-10 10:58:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-10 10:58:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-09-10 10:58:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-09-10 10:58:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-09-10 10:58:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 10:58:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 10:58:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 10:58:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 10:58:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-09-10 10:58:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 10:58:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-09-10 10:58:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-09-10 10:58:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-09-10 10:58:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-09-10 10:58:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-09-10 10:58:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 10:58:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-09-10 10:58:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-09-10 10:58:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-09-10 10:58:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-10 10:58:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-10 10:58:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-10 10:58:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-09-10 10:58:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-10 10:58:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-10 10:58:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-09-10 10:58:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-10 10:58:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-10 10:58:08,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-10 10:58:08,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2019-09-10 10:58:08,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-09-10 10:58:08,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2019-09-10 10:58:08,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-09-10 10:58:08,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-09-10 10:58:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-09-10 10:58:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-09-10 10:58:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 10:58:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 10:58:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 10:58:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 10:58:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-09-10 10:58:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 10:58:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 10:58:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-09-10 10:58:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-09-10 10:58:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2019-09-10 10:58:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 10:58:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-09-10 10:58:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-09-10 10:58:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-10 10:58:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 10:58:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-09-10 10:58:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-09-10 10:58:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-09-10 10:58:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-09-10 10:58:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-09-10 10:58:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-09-10 10:58:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-09-10 10:58:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-09-10 10:58:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 10:58:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-10 10:58:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-10 10:58:08,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-10 10:58:08,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-09-10 10:58:08,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-09-10 10:58:08,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-09-10 10:58:08,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-09-10 10:58:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 10:58:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 10:58:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 10:58:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 10:58:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 10:58:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 10:58:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 10:58:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 10:58:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 10:58:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 10:58:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-09-10 10:58:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-10 10:58:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-10 10:58:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-09-10 10:58:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-09-10 10:58:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-09-10 10:58:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-09-10 10:58:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2019-09-10 10:58:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2019-09-10 10:58:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2019-09-10 10:58:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-09-10 10:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-09-10 10:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 10:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-09-10 10:58:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-09-10 10:58:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 10:58:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 10:58:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 10:58:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 10:58:08,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-10 10:58:08,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-10 10:58:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-10 10:58:09,651 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 10:58:10,787 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 10:58:10,788 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 10:58:10,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:58:10 BoogieIcfgContainer [2019-09-10 10:58:10,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 10:58:10,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 10:58:10,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 10:58:10,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 10:58:10,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:58:06" (1/3) ... [2019-09-10 10:58:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9908de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:58:10, skipping insertion in model container [2019-09-10 10:58:10,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:58:08" (2/3) ... [2019-09-10 10:58:10,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9908de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:58:10, skipping insertion in model container [2019-09-10 10:58:10,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:58:10" (3/3) ... [2019-09-10 10:58:10,798 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-09-10 10:58:10,809 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 10:58:10,819 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 10:58:10,838 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 10:58:10,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 10:58:10,869 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 10:58:10,869 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 10:58:10,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 10:58:10,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 10:58:10,869 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 10:58:10,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 10:58:10,870 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 10:58:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2019-09-10 10:58:10,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 10:58:10,917 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:10,918 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] [2019-09-10 10:58:10,920 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:10,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:10,927 INFO L82 PathProgramCache]: Analyzing trace with hash 444838920, now seen corresponding path program 1 times [2019-09-10 10:58:10,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:11,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:11,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:11,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:11,011 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:11,485 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 10:58:11,488 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:11,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 10:58:11,489 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:11,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 10:58:11,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 10:58:11,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 10:58:11,517 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 3 states. [2019-09-10 10:58:11,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:11,724 INFO L93 Difference]: Finished difference Result 909 states and 1117 transitions. [2019-09-10 10:58:11,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 10:58:11,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-10 10:58:11,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:11,782 INFO L225 Difference]: With dead ends: 909 [2019-09-10 10:58:11,782 INFO L226 Difference]: Without dead ends: 892 [2019-09-10 10:58:11,784 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 10:58:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2019-09-10 10:58:11,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2019-09-10 10:58:11,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2019-09-10 10:58:11,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1092 transitions. [2019-09-10 10:58:11,902 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1092 transitions. Word has length 66 [2019-09-10 10:58:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:11,903 INFO L475 AbstractCegarLoop]: Abstraction has 892 states and 1092 transitions. [2019-09-10 10:58:11,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 10:58:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1092 transitions. [2019-09-10 10:58:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 10:58:11,910 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:11,911 INFO L399 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] [2019-09-10 10:58:11,911 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:11,912 INFO L82 PathProgramCache]: Analyzing trace with hash 253018515, now seen corresponding path program 1 times [2019-09-10 10:58:11,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:11,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:11,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:11,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:11,917 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 10:58:12,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:12,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 10:58:12,153 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:12,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 10:58:12,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 10:58:12,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 10:58:12,156 INFO L87 Difference]: Start difference. First operand 892 states and 1092 transitions. Second operand 6 states. [2019-09-10 10:58:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:12,914 INFO L93 Difference]: Finished difference Result 1760 states and 2164 transitions. [2019-09-10 10:58:12,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 10:58:12,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2019-09-10 10:58:12,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:12,927 INFO L225 Difference]: With dead ends: 1760 [2019-09-10 10:58:12,927 INFO L226 Difference]: Without dead ends: 1739 [2019-09-10 10:58:12,929 INFO L628 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 [2019-09-10 10:58:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2019-09-10 10:58:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2019-09-10 10:58:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2019-09-10 10:58:13,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2141 transitions. [2019-09-10 10:58:13,008 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2141 transitions. Word has length 82 [2019-09-10 10:58:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:13,010 INFO L475 AbstractCegarLoop]: Abstraction has 1739 states and 2141 transitions. [2019-09-10 10:58:13,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 10:58:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2141 transitions. [2019-09-10 10:58:13,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-09-10 10:58:13,038 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:13,039 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 10:58:13,039 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:13,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1639076073, now seen corresponding path program 1 times [2019-09-10 10:58:13,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:13,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:13,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:13,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:13,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:13,238 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-09-10 10:58:13,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:13,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 10:58:13,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:13,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 10:58:13,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 10:58:13,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 10:58:13,241 INFO L87 Difference]: Start difference. First operand 1739 states and 2141 transitions. Second operand 3 states. [2019-09-10 10:58:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:13,319 INFO L93 Difference]: Finished difference Result 2077 states and 2579 transitions. [2019-09-10 10:58:13,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 10:58:13,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-09-10 10:58:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:13,333 INFO L225 Difference]: With dead ends: 2077 [2019-09-10 10:58:13,333 INFO L226 Difference]: Without dead ends: 2077 [2019-09-10 10:58:13,334 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 10:58:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2019-09-10 10:58:13,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2053. [2019-09-10 10:58:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2053 states. [2019-09-10 10:58:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2556 transitions. [2019-09-10 10:58:13,422 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2556 transitions. Word has length 197 [2019-09-10 10:58:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:13,422 INFO L475 AbstractCegarLoop]: Abstraction has 2053 states and 2556 transitions. [2019-09-10 10:58:13,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 10:58:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2556 transitions. [2019-09-10 10:58:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-09-10 10:58:13,430 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:13,430 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:13,430 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:13,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:13,431 INFO L82 PathProgramCache]: Analyzing trace with hash 2021663145, now seen corresponding path program 1 times [2019-09-10 10:58:13,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:13,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:13,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:13,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:13,436 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:13,776 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-10 10:58:13,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:13,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 10:58:13,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:13,778 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 10:58:13,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 10:58:13,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 10:58:13,779 INFO L87 Difference]: Start difference. First operand 2053 states and 2556 transitions. Second operand 3 states. [2019-09-10 10:58:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:13,881 INFO L93 Difference]: Finished difference Result 3557 states and 4395 transitions. [2019-09-10 10:58:13,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 10:58:13,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-09-10 10:58:13,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:13,901 INFO L225 Difference]: With dead ends: 3557 [2019-09-10 10:58:13,901 INFO L226 Difference]: Without dead ends: 3557 [2019-09-10 10:58:13,902 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 10:58:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2019-09-10 10:58:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3533. [2019-09-10 10:58:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3533 states. [2019-09-10 10:58:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4372 transitions. [2019-09-10 10:58:14,028 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4372 transitions. Word has length 232 [2019-09-10 10:58:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:14,030 INFO L475 AbstractCegarLoop]: Abstraction has 3533 states and 4372 transitions. [2019-09-10 10:58:14,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 10:58:14,034 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4372 transitions. [2019-09-10 10:58:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-09-10 10:58:14,045 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:14,045 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:14,047 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2121959977, now seen corresponding path program 1 times [2019-09-10 10:58:14,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:14,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:14,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:14,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:14,052 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:14,427 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-09-10 10:58:14,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:14,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 10:58:14,429 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:14,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 10:58:14,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 10:58:14,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 10:58:14,430 INFO L87 Difference]: Start difference. First operand 3533 states and 4372 transitions. Second operand 3 states. [2019-09-10 10:58:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:14,470 INFO L93 Difference]: Finished difference Result 3549 states and 4388 transitions. [2019-09-10 10:58:14,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 10:58:14,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-09-10 10:58:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:14,489 INFO L225 Difference]: With dead ends: 3549 [2019-09-10 10:58:14,489 INFO L226 Difference]: Without dead ends: 3549 [2019-09-10 10:58:14,489 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 10:58:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2019-09-10 10:58:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3541. [2019-09-10 10:58:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3541 states. [2019-09-10 10:58:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 4380 transitions. [2019-09-10 10:58:14,602 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 4380 transitions. Word has length 232 [2019-09-10 10:58:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:14,603 INFO L475 AbstractCegarLoop]: Abstraction has 3541 states and 4380 transitions. [2019-09-10 10:58:14,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 10:58:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 4380 transitions. [2019-09-10 10:58:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-09-10 10:58:14,611 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 10:58:14,611 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:14,611 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 10:58:14,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 10:58:14,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1356948152, now seen corresponding path program 1 times [2019-09-10 10:58:14,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 10:58:14,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:14,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 10:58:14,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 10:58:14,616 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 10:58:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 10:58:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-09-10 10:58:14,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 10:58:14,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 10:58:14,978 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 10:58:14,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 10:58:14,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 10:58:14,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-09-10 10:58:14,980 INFO L87 Difference]: Start difference. First operand 3541 states and 4380 transitions. Second operand 9 states. [2019-09-10 10:58:16,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 10:58:16,908 INFO L93 Difference]: Finished difference Result 1744 states and 2141 transitions. [2019-09-10 10:58:16,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 10:58:16,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 234 [2019-09-10 10:58:16,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 10:58:16,911 INFO L225 Difference]: With dead ends: 1744 [2019-09-10 10:58:16,912 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 10:58:16,912 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-09-10 10:58:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 10:58:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 10:58:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 10:58:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 10:58:16,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2019-09-10 10:58:16,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 10:58:16,914 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 10:58:16,914 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 10:58:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 10:58:16,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 10:58:16,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:58:16 BoogieIcfgContainer [2019-09-10 10:58:16,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 10:58:16,924 INFO L168 Benchmark]: Toolchain (without parser) took 10506.00 ms. Allocated memory was 135.8 MB in the beginning and 412.6 MB in the end (delta: 276.8 MB). Free memory was 83.4 MB in the beginning and 224.6 MB in the end (delta: -141.2 MB). Peak memory consumption was 135.6 MB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,925 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2157.18 ms. Allocated memory was 135.8 MB in the beginning and 234.9 MB in the end (delta: 99.1 MB). Free memory was 82.9 MB in the beginning and 115.5 MB in the end (delta: -32.6 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,928 INFO L168 Benchmark]: Boogie Preprocessor took 226.10 ms. Allocated memory is still 234.9 MB. Free memory was 115.5 MB in the beginning and 106.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,930 INFO L168 Benchmark]: RCFGBuilder took 1985.45 ms. Allocated memory was 234.9 MB in the beginning and 272.1 MB in the end (delta: 37.2 MB). Free memory was 106.0 MB in the beginning and 192.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,931 INFO L168 Benchmark]: TraceAbstraction took 6129.69 ms. Allocated memory was 272.1 MB in the beginning and 412.6 MB in the end (delta: 140.5 MB). Free memory was 192.7 MB in the beginning and 224.6 MB in the end (delta: -31.9 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. [2019-09-10 10:58:16,940 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 135.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2157.18 ms. Allocated memory was 135.8 MB in the beginning and 234.9 MB in the end (delta: 99.1 MB). Free memory was 82.9 MB in the beginning and 115.5 MB in the end (delta: -32.6 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 226.10 ms. Allocated memory is still 234.9 MB. Free memory was 115.5 MB in the beginning and 106.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1985.45 ms. Allocated memory was 234.9 MB in the beginning and 272.1 MB in the end (delta: 37.2 MB). Free memory was 106.0 MB in the beginning and 192.7 MB in the end (delta: -86.7 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6129.69 ms. Allocated memory was 272.1 MB in the beginning and 412.6 MB in the end (delta: 140.5 MB). Free memory was 192.7 MB in the beginning and 224.6 MB in the end (delta: -31.9 MB). Peak memory consumption was 108.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5676]: 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 99 procedures, 614 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3810 SDtfs, 2507 SDslu, 5157 SDs, 0 SdLazy, 1491 SolverSat, 365 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3541occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 56 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1043 NumberOfCodeBlocks, 1043 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1037 ConstructedInterpolants, 0 QuantifiedInterpolants, 277492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 348/348 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...