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 0.1.24-673a906-m [2019-10-03 00:49:40,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 00:49:40,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 00:49:40,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 00:49:40,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 00:49:40,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 00:49:40,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 00:49:40,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 00:49:40,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 00:49:40,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 00:49:40,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 00:49:40,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 00:49:40,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 00:49:40,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 00:49:40,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 00:49:40,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 00:49:40,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 00:49:40,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 00:49:40,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 00:49:40,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 00:49:40,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 00:49:40,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 00:49:40,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 00:49:40,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 00:49:40,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 00:49:40,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 00:49:40,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 00:49:40,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 00:49:40,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 00:49:40,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 00:49:40,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 00:49:40,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 00:49:40,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 00:49:40,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 00:49:41,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 00:49:41,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 00:49:41,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 00:49:41,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 00:49:41,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 00:49:41,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 00:49:41,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 00:49:41,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 00:49:41,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 00:49:41,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 00:49:41,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 00:49:41,019 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 00:49:41,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 00:49:41,020 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 00:49:41,021 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 00:49:41,021 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 00:49:41,021 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 00:49:41,021 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 00:49:41,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 00:49:41,022 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 00:49:41,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 00:49:41,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 00:49:41,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 00:49:41,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 00:49:41,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 00:49:41,023 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 00:49:41,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 00:49:41,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 00:49:41,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 00:49:41,024 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 00:49:41,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 00:49:41,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 00:49:41,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 00:49:41,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 00:49:41,025 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 00:49:41,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 00:49:41,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 00:49:41,026 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 00:49:41,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 00:49:41,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 00:49:41,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 00:49:41,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 00:49:41,073 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 00:49:41,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-10-03 00:49:41,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5003f300d/1f44440fddef49c8a888663d14a1e2d8/FLAG3f4596408 [2019-10-03 00:49:41,935 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 00:49:41,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_eem.ko-entry_point.cil.out.i [2019-10-03 00:49:41,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5003f300d/1f44440fddef49c8a888663d14a1e2d8/FLAG3f4596408 [2019-10-03 00:49:42,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5003f300d/1f44440fddef49c8a888663d14a1e2d8 [2019-10-03 00:49:42,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 00:49:42,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 00:49:42,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 00:49:42,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 00:49:42,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 00:49:42,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:49:42" (1/1) ... [2019-10-03 00:49:42,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145640b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:42, skipping insertion in model container [2019-10-03 00:49:42,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:49:42" (1/1) ... [2019-10-03 00:49:42,061 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 00:49:42,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 00:49:43,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 00:49:43,569 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 00:49:43,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 00:49:44,088 INFO L192 MainTranslator]: Completed translation [2019-10-03 00:49:44,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44 WrapperNode [2019-10-03 00:49:44,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 00:49:44,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 00:49:44,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 00:49:44,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 00:49:44,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... [2019-10-03 00:49:44,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 00:49:44,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 00:49:44,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 00:49:44,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 00:49:44,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 00:49:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 00:49:44,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 00:49:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-03 00:49:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-03 00:49:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32p [2019-10-03 00:49:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2019-10-03 00:49:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-03 00:49:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2019-10-03 00:49:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-03 00:49:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-03 00:49:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-03 00:49:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-03 00:49:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-03 00:49:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2019-10-03 00:49:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2019-10-03 00:49:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-03 00:49:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-03 00:49:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 00:49:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 00:49:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 00:49:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 00:49:44,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 00:49:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 00:49:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 00:49:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 00:49:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-03 00:49:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-03 00:49:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-03 00:49:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2019-10-03 00:49:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be32 [2019-10-03 00:49:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-10-03 00:49:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2019-10-03 00:49:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-03 00:49:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-03 00:49:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2019-10-03 00:49:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd_complete [2019-10-03 00:49:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_linkcmd [2019-10-03 00:49:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_bind [2019-10-03 00:49:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_tx_fixup [2019-10-03 00:49:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_rx_fixup [2019-10-03 00:49:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_init [2019-10-03 00:49:44,432 INFO L138 BoogieDeclarations]: Found implementation of procedure eem_driver_exit [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-03 00:49:44,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-03 00:49:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-03 00:49:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-03 00:49:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_12 [2019-10-03 00:49:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_13 [2019-10-03 00:49:44,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-03 00:49:44,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-03 00:49:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-03 00:49:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-03 00:49:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-03 00:49:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 00:49:44,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 00:49:44,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-03 00:49:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-03 00:49:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-10-03 00:49:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-03 00:49:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-10-03 00:49:44,438 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-10-03 00:49:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-10-03 00:49:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2019-10-03 00:49:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-03 00:49:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-03 00:49:44,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-03 00:49:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-03 00:49:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-03 00:49:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-03 00:49:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-10-03 00:49:44,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_device_suggests_idle [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2019-10-03 00:49:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2019-10-03 00:49:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2019-10-03 00:49:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2019-10-03 00:49:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2019-10-03 00:49:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 00:49:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 00:49:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-03 00:49:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 00:49:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-03 00:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 00:49:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 00:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-03 00:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-03 00:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32p [2019-10-03 00:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 00:49:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-03 00:49:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-03 00:49:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-03 00:49:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 00:49:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-03 00:49:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-03 00:49:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-03 00:49:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-03 00:49:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-03 00:49:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-10-03 00:49:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2019-10-03 00:49:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 00:49:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2019-10-03 00:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-03 00:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-03 00:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-03 00:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-03 00:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 00:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 00:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 00:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 00:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 00:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 00:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 00:49:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 00:49:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 00:49:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 00:49:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 00:49:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-03 00:49:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be32 [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-10-03 00:49:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_12 [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-03 00:49:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_13 [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-10-03 00:49:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_device_suggests_idle [2019-10-03 00:49:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd_complete [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure eem_linkcmd [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure eem_bind [2019-10-03 00:49:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure eem_tx_fixup [2019-10-03 00:49:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-03 00:49:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure eem_rx_fixup [2019-10-03 00:49:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 00:49:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_init [2019-10-03 00:49:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure eem_driver_exit [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 00:49:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-03 00:49:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-03 00:49:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-03 00:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-03 00:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-03 00:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 00:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 00:49:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 00:49:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-03 00:49:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-03 00:49:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-03 00:49:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-03 00:49:45,141 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 00:49:46,358 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 00:49:46,358 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 00:49:46,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:49:46 BoogieIcfgContainer [2019-10-03 00:49:46,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 00:49:46,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 00:49:46,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 00:49:46,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 00:49:46,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 12:49:42" (1/3) ... [2019-10-03 00:49:46,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741aa6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:49:46, skipping insertion in model container [2019-10-03 00:49:46,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:49:44" (2/3) ... [2019-10-03 00:49:46,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741aa6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 12:49:46, skipping insertion in model container [2019-10-03 00:49:46,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:49:46" (3/3) ... [2019-10-03 00:49:46,370 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 [2019-10-03 00:49:46,381 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 00:49:46,395 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 00:49:46,414 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 00:49:46,443 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 00:49:46,443 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 00:49:46,443 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 00:49:46,443 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 00:49:46,444 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 00:49:46,444 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 00:49:46,444 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 00:49:46,444 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 00:49:46,472 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states. [2019-10-03 00:49:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-03 00:49:46,490 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:46,491 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:49:46,494 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:46,500 INFO L82 PathProgramCache]: Analyzing trace with hash 444838920, now seen corresponding path program 1 times [2019-10-03 00:49:46,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:46,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:46,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:46,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:46,580 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-03 00:49:47,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:47,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:49:47,008 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:47,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:49:47,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:49:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:47,032 INFO L87 Difference]: Start difference. First operand 539 states. Second operand 3 states. [2019-10-03 00:49:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:47,242 INFO L93 Difference]: Finished difference Result 909 states and 1117 transitions. [2019-10-03 00:49:47,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:49:47,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-10-03 00:49:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:47,306 INFO L225 Difference]: With dead ends: 909 [2019-10-03 00:49:47,306 INFO L226 Difference]: Without dead ends: 892 [2019-10-03 00:49:47,310 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2019-10-03 00:49:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2019-10-03 00:49:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 892 states. [2019-10-03 00:49:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1092 transitions. [2019-10-03 00:49:47,492 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1092 transitions. Word has length 66 [2019-10-03 00:49:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:47,492 INFO L475 AbstractCegarLoop]: Abstraction has 892 states and 1092 transitions. [2019-10-03 00:49:47,492 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:49:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1092 transitions. [2019-10-03 00:49:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-03 00:49:47,508 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:47,508 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 00:49:47,509 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:47,509 INFO L82 PathProgramCache]: Analyzing trace with hash 253018515, now seen corresponding path program 1 times [2019-10-03 00:49:47,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:47,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:47,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:47,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:47,529 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-03 00:49:47,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:47,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 00:49:47,833 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:47,843 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 00:49:47,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 00:49:47,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 00:49:47,848 INFO L87 Difference]: Start difference. First operand 892 states and 1092 transitions. Second operand 6 states. [2019-10-03 00:49:48,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:48,736 INFO L93 Difference]: Finished difference Result 1760 states and 2164 transitions. [2019-10-03 00:49:48,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 00:49:48,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2019-10-03 00:49:48,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:48,756 INFO L225 Difference]: With dead ends: 1760 [2019-10-03 00:49:48,756 INFO L226 Difference]: Without dead ends: 1739 [2019-10-03 00:49:48,758 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 00:49:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2019-10-03 00:49:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2019-10-03 00:49:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2019-10-03 00:49:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2141 transitions. [2019-10-03 00:49:48,847 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2141 transitions. Word has length 82 [2019-10-03 00:49:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:48,849 INFO L475 AbstractCegarLoop]: Abstraction has 1739 states and 2141 transitions. [2019-10-03 00:49:48,850 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 00:49:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2141 transitions. [2019-10-03 00:49:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-03 00:49:48,867 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:48,867 INFO L411 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] [2019-10-03 00:49:48,868 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:48,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:48,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1639076073, now seen corresponding path program 1 times [2019-10-03 00:49:48,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:48,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:48,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:48,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:48,882 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-03 00:49:49,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:49,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:49:49,071 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:49,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:49:49,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:49:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:49,073 INFO L87 Difference]: Start difference. First operand 1739 states and 2141 transitions. Second operand 3 states. [2019-10-03 00:49:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:49,163 INFO L93 Difference]: Finished difference Result 2077 states and 2579 transitions. [2019-10-03 00:49:49,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:49:49,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-03 00:49:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:49,177 INFO L225 Difference]: With dead ends: 2077 [2019-10-03 00:49:49,178 INFO L226 Difference]: Without dead ends: 2077 [2019-10-03 00:49:49,178 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2019-10-03 00:49:49,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2053. [2019-10-03 00:49:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2053 states. [2019-10-03 00:49:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2053 states to 2053 states and 2556 transitions. [2019-10-03 00:49:49,286 INFO L78 Accepts]: Start accepts. Automaton has 2053 states and 2556 transitions. Word has length 197 [2019-10-03 00:49:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:49,286 INFO L475 AbstractCegarLoop]: Abstraction has 2053 states and 2556 transitions. [2019-10-03 00:49:49,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:49:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2053 states and 2556 transitions. [2019-10-03 00:49:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-03 00:49:49,295 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:49,295 INFO L411 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] [2019-10-03 00:49:49,296 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2021663145, now seen corresponding path program 1 times [2019-10-03 00:49:49,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:49,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:49,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:49,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:49,304 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-03 00:49:49,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:49,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:49:49,595 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:49,597 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:49:49,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:49:49,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:49,598 INFO L87 Difference]: Start difference. First operand 2053 states and 2556 transitions. Second operand 3 states. [2019-10-03 00:49:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:49,715 INFO L93 Difference]: Finished difference Result 3557 states and 4395 transitions. [2019-10-03 00:49:49,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:49:49,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-10-03 00:49:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:49,735 INFO L225 Difference]: With dead ends: 3557 [2019-10-03 00:49:49,735 INFO L226 Difference]: Without dead ends: 3557 [2019-10-03 00:49:49,736 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:49,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2019-10-03 00:49:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3533. [2019-10-03 00:49:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3533 states. [2019-10-03 00:49:49,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4372 transitions. [2019-10-03 00:49:49,858 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4372 transitions. Word has length 232 [2019-10-03 00:49:49,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:49,858 INFO L475 AbstractCegarLoop]: Abstraction has 3533 states and 4372 transitions. [2019-10-03 00:49:49,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:49:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4372 transitions. [2019-10-03 00:49:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-03 00:49:49,872 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:49,872 INFO L411 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] [2019-10-03 00:49:49,875 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:49,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:49,876 INFO L82 PathProgramCache]: Analyzing trace with hash -2121959977, now seen corresponding path program 1 times [2019-10-03 00:49:49,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:49,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:49,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:49,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:49,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-03 00:49:50,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:50,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 00:49:50,094 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:50,095 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 00:49:50,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 00:49:50,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:50,096 INFO L87 Difference]: Start difference. First operand 3533 states and 4372 transitions. Second operand 3 states. [2019-10-03 00:49:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:50,138 INFO L93 Difference]: Finished difference Result 3549 states and 4388 transitions. [2019-10-03 00:49:50,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 00:49:50,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-10-03 00:49:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:50,165 INFO L225 Difference]: With dead ends: 3549 [2019-10-03 00:49:50,166 INFO L226 Difference]: Without dead ends: 3549 [2019-10-03 00:49:50,166 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 00:49:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2019-10-03 00:49:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3541. [2019-10-03 00:49:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3541 states. [2019-10-03 00:49:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 4380 transitions. [2019-10-03 00:49:50,282 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 4380 transitions. Word has length 232 [2019-10-03 00:49:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:50,285 INFO L475 AbstractCegarLoop]: Abstraction has 3541 states and 4380 transitions. [2019-10-03 00:49:50,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 00:49:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 4380 transitions. [2019-10-03 00:49:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-03 00:49:50,297 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 00:49:50,297 INFO L411 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] [2019-10-03 00:49:50,297 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 00:49:50,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 00:49:50,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1356948152, now seen corresponding path program 1 times [2019-10-03 00:49:50,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 00:49:50,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:50,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 00:49:50,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 00:49:50,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 00:49:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 00:49:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-10-03 00:49:50,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 00:49:50,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 00:49:50,874 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 00:49:50,875 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 00:49:50,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 00:49:50,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-10-03 00:49:50,876 INFO L87 Difference]: Start difference. First operand 3541 states and 4380 transitions. Second operand 9 states. [2019-10-03 00:49:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 00:49:52,764 INFO L93 Difference]: Finished difference Result 1744 states and 2141 transitions. [2019-10-03 00:49:52,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 00:49:52,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 234 [2019-10-03 00:49:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 00:49:52,766 INFO L225 Difference]: With dead ends: 1744 [2019-10-03 00:49:52,766 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 00:49:52,766 INFO L640 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 [2019-10-03 00:49:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 00:49:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 00:49:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 00:49:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 00:49:52,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2019-10-03 00:49:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 00:49:52,768 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 00:49:52,768 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 00:49:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 00:49:52,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 00:49:52,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 12:49:52 BoogieIcfgContainer [2019-10-03 00:49:52,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 00:49:52,777 INFO L168 Benchmark]: Toolchain (without parser) took 10733.99 ms. Allocated memory was 132.6 MB in the beginning and 439.4 MB in the end (delta: 306.7 MB). Free memory was 80.3 MB in the beginning and 363.2 MB in the end (delta: -282.9 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,779 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2046.77 ms. Allocated memory was 132.6 MB in the beginning and 220.2 MB in the end (delta: 87.6 MB). Free memory was 79.8 MB in the beginning and 106.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,781 INFO L168 Benchmark]: Boogie Preprocessor took 258.34 ms. Allocated memory is still 220.2 MB. Free memory was 106.2 MB in the beginning and 96.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,783 INFO L168 Benchmark]: RCFGBuilder took 2011.69 ms. Allocated memory was 220.2 MB in the beginning and 270.5 MB in the end (delta: 50.3 MB). Free memory was 96.6 MB in the beginning and 207.1 MB in the end (delta: -110.5 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,785 INFO L168 Benchmark]: TraceAbstraction took 6412.56 ms. Allocated memory was 270.5 MB in the beginning and 439.4 MB in the end (delta: 168.8 MB). Free memory was 207.1 MB in the beginning and 363.2 MB in the end (delta: -156.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-03 00:49:52,794 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2046.77 ms. Allocated memory was 132.6 MB in the beginning and 220.2 MB in the end (delta: 87.6 MB). Free memory was 79.8 MB in the beginning and 106.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 258.34 ms. Allocated memory is still 220.2 MB. Free memory was 106.2 MB in the beginning and 96.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2011.69 ms. Allocated memory was 220.2 MB in the beginning and 270.5 MB in the end (delta: 50.3 MB). Free memory was 96.6 MB in the beginning and 207.1 MB in the end (delta: -110.5 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6412.56 ms. Allocated memory was 270.5 MB in the beginning and 439.4 MB in the end (delta: 168.8 MB). Free memory was 207.1 MB in the beginning and 363.2 MB in the end (delta: -156.1 MB). Peak memory consumption was 12.7 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, 6.3s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 3.4s 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, 0.3s 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s 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...