java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_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-f4eb214f-m [2019-10-13 18:30:59,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:30:59,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:30:59,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:30:59,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:30:59,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:30:59,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:30:59,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:30:59,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:30:59,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:30:59,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:30:59,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:30:59,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:30:59,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:30:59,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:30:59,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:30:59,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:30:59,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:30:59,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:30:59,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:30:59,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:30:59,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:30:59,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:30:59,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:30:59,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:30:59,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:30:59,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:30:59,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:30:59,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:30:59,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:30:59,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:30:59,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:30:59,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:30:59,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:30:59,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:30:59,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:30:59,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:30:59,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:30:59,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:30:59,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:30:59,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:30:59,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:30:59,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:30:59,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:30:59,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:30:59,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:30:59,994 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:30:59,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:30:59,995 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:30:59,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:30:59,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:30:59,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:30:59,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:30:59,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:30:59,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:30:59,997 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:30:59,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:30:59,997 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:30:59,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:30:59,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:30:59,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:30:59,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:30:59,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:30:59,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:30:59,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:30:59,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:30:59,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:31:00,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:31:00,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:31:00,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:31:00,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:31:00,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:31:00,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:31:00,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:31:00,334 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:31:00,335 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:31:00,335 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-10-13 18:31:00,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac65919eb/d77ed0086e59408d9bdfed3a2ec5b3b6/FLAGb694ebfea [2019-10-13 18:31:01,201 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:31:01,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-10-13 18:31:01,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac65919eb/d77ed0086e59408d9bdfed3a2ec5b3b6/FLAGb694ebfea [2019-10-13 18:31:01,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac65919eb/d77ed0086e59408d9bdfed3a2ec5b3b6 [2019-10-13 18:31:01,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:31:01,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:31:01,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:31:01,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:31:01,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:31:01,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:01" (1/1) ... [2019-10-13 18:31:01,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa2ed54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:01, skipping insertion in model container [2019-10-13 18:31:01,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:01" (1/1) ... [2019-10-13 18:31:01,776 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:31:01,891 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:31:03,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:31:03,436 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:31:03,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:31:03,731 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:31:03,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03 WrapperNode [2019-10-13 18:31:03,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:31:03,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:31:03,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:31:03,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:31:03,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... [2019-10-13 18:31:03,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:31:03,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:31:03,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:31:03,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:31:03,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:31:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:31:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:31:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-13 18:31:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-13 18:31:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2019-10-13 18:31:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-10-13 18:31:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-13 18:31:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2019-10-13 18:31:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 18:31:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:31:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-13 18:31:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-13 18:31:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-13 18:31:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-10-13 18:31:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2019-10-13 18:31:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-13 18:31:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-13 18:31:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:31:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:31:03,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:31:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-10-13 18:31:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2019-10-13 18:31:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-13 18:31:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2019-10-13 18:31:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 18:31:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 18:31:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-13 18:31:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-10-13 18:31:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 18:31:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-10-13 18:31:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:31:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:31:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:31:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:31:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-13 18:31:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:31:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:31:03,987 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2019-10-13 18:31:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 18:31:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-13 18:31:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2019-10-13 18:31:03,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-13 18:31:03,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:31:03,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:31:03,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-13 18:31:03,995 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2019-10-13 18:31:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2019-10-13 18:31:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-10-13 18:31:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2019-10-13 18:31:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:31:04,000 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:31:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 18:31:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 18:31:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:31:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:31:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:31:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:31:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:31:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:31:04,597 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:31:06,499 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:31:06,500 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 18:31:06,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:06 BoogieIcfgContainer [2019-10-13 18:31:06,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:31:06,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:31:06,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:31:06,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:31:06,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:31:01" (1/3) ... [2019-10-13 18:31:06,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193d645d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:06, skipping insertion in model container [2019-10-13 18:31:06,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:03" (2/3) ... [2019-10-13 18:31:06,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193d645d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:06, skipping insertion in model container [2019-10-13 18:31:06,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:06" (3/3) ... [2019-10-13 18:31:06,510 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 [2019-10-13 18:31:06,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:31:06,531 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:31:06,545 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:31:06,578 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:31:06,578 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:31:06,578 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:31:06,579 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:31:06,579 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:31:06,579 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:31:06,579 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:31:06,579 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:31:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states. [2019-10-13 18:31:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-13 18:31:06,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:06,631 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:31:06,633 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:06,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:06,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1143159700, now seen corresponding path program 1 times [2019-10-13 18:31:06,648 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:06,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582605676] [2019-10-13 18:31:06,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:06,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:06,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,605 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-13 18:31:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-13 18:31:07,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582605676] [2019-10-13 18:31:07,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:07,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 18:31:07,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154015679] [2019-10-13 18:31:07,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:31:07,803 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:07,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:31:07,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:31:07,820 INFO L87 Difference]: Start difference. First operand 538 states. Second operand 8 states. [2019-10-13 18:31:13,587 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2019-10-13 18:31:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:31:23,673 INFO L93 Difference]: Finished difference Result 1876 states and 2555 transitions. [2019-10-13 18:31:23,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 18:31:23,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2019-10-13 18:31:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:31:23,705 INFO L225 Difference]: With dead ends: 1876 [2019-10-13 18:31:23,705 INFO L226 Difference]: Without dead ends: 1374 [2019-10-13 18:31:23,715 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2019-10-13 18:31:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2019-10-13 18:31:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 890. [2019-10-13 18:31:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2019-10-13 18:31:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1088 transitions. [2019-10-13 18:31:23,988 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1088 transitions. Word has length 66 [2019-10-13 18:31:23,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:31:23,989 INFO L462 AbstractCegarLoop]: Abstraction has 890 states and 1088 transitions. [2019-10-13 18:31:23,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:31:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1088 transitions. [2019-10-13 18:31:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-13 18:31:23,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:23,997 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:31:23,997 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:23,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:23,998 INFO L82 PathProgramCache]: Analyzing trace with hash -153251815, now seen corresponding path program 1 times [2019-10-13 18:31:23,998 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:23,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219889710] [2019-10-13 18:31:23,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:23,999 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:23,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,575 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-10-13 18:31:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 18:31:24,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219889710] [2019-10-13 18:31:24,893 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:24,893 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 18:31:24,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668089673] [2019-10-13 18:31:24,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 18:31:24,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:24,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 18:31:24,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-10-13 18:31:24,896 INFO L87 Difference]: Start difference. First operand 890 states and 1088 transitions. Second operand 12 states. [2019-10-13 18:31:28,700 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2019-10-13 18:31:32,317 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 213 [2019-10-13 18:31:32,792 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 18:31:33,168 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 18:31:37,868 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2019-10-13 18:31:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:31:40,954 INFO L93 Difference]: Finished difference Result 2415 states and 3239 transitions. [2019-10-13 18:31:40,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 18:31:40,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2019-10-13 18:31:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:31:40,974 INFO L225 Difference]: With dead ends: 2415 [2019-10-13 18:31:40,974 INFO L226 Difference]: Without dead ends: 2388 [2019-10-13 18:31:40,977 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2019-10-13 18:31:40,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2019-10-13 18:31:41,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 1863. [2019-10-13 18:31:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2019-10-13 18:31:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2349 transitions. [2019-10-13 18:31:41,320 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2349 transitions. Word has length 82 [2019-10-13 18:31:41,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:31:41,323 INFO L462 AbstractCegarLoop]: Abstraction has 1863 states and 2349 transitions. [2019-10-13 18:31:41,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 18:31:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2349 transitions. [2019-10-13 18:31:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 18:31:41,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:41,342 INFO L380 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] [2019-10-13 18:31:41,343 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1388294539, now seen corresponding path program 1 times [2019-10-13 18:31:41,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:41,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384880440] [2019-10-13 18:31:41,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:41,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:41,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat