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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 23:15:36,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 23:15:36,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 23:15:36,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 23:15:36,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 23:15:36,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 23:15:36,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 23:15:36,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 23:15:36,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 23:15:36,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 23:15:36,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 23:15:36,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 23:15:36,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 23:15:36,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 23:15:36,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 23:15:36,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 23:15:36,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 23:15:36,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 23:15:36,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 23:15:36,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 23:15:36,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 23:15:36,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 23:15:36,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 23:15:36,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 23:15:36,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 23:15:36,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 23:15:36,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 23:15:36,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 23:15:36,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 23:15:36,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 23:15:36,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 23:15:36,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 23:15:36,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 23:15:36,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 23:15:36,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 23:15:36,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 23:15:36,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 23:15:36,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 23:15:36,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 23:15:36,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 23:15:36,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 23:15:36,695 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 [2019-10-02 23:15:36,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 23:15:36,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 23:15:36,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 23:15:36,713 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 23:15:36,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 23:15:36,714 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 23:15:36,714 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 23:15:36,714 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 23:15:36,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 23:15:36,714 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 23:15:36,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 23:15:36,716 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 23:15:36,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 23:15:36,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 23:15:36,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 23:15:36,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 23:15:36,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 23:15:36,717 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 23:15:36,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 23:15:36,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 23:15:36,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 23:15:36,718 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 23:15:36,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 23:15:36,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 23:15:36,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 23:15:36,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 23:15:36,719 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 23:15:36,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 23:15:36,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 23:15:36,720 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 23:15:36,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 23:15:36,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 23:15:36,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 23:15:36,780 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 23:15:36,781 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 23:15:36,781 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-10-02 23:15:36,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf16031a4/0d71883a3b4b4d1ba7316f8bb8485c1d/FLAG9a64f63b6 [2019-10-02 23:15:37,816 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 23:15:37,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-10-02 23:15:37,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf16031a4/0d71883a3b4b4d1ba7316f8bb8485c1d/FLAG9a64f63b6 [2019-10-02 23:15:38,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf16031a4/0d71883a3b4b4d1ba7316f8bb8485c1d [2019-10-02 23:15:38,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 23:15:38,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 23:15:38,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 23:15:38,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 23:15:38,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 23:15:38,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:15:38" (1/1) ... [2019-10-02 23:15:38,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c50b988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:38, skipping insertion in model container [2019-10-02 23:15:38,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:15:38" (1/1) ... [2019-10-02 23:15:38,365 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 23:15:38,516 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 23:15:40,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:15:40,650 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 23:15:41,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 23:15:41,466 INFO L192 MainTranslator]: Completed translation [2019-10-02 23:15:41,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41 WrapperNode [2019-10-02 23:15:41,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 23:15:41,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 23:15:41,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 23:15:41,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 23:15:41,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (1/1) ... [2019-10-02 23:15:41,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 23:15:41,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 23:15:41,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 23:15:41,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 23:15:41,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (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 [2019-10-02 23:15:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 23:15:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 23:15:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-02 23:15:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-10-02 23:15:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-10-02 23:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-02 23:15:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-02 23:15:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-02 23:15:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-10-02 23:15:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-02 23:15:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-02 23:15:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-02 23:15:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-02 23:15:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-02 23:15:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-02 23:15:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-10-02 23:15:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-10-02 23:15:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-02 23:15:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-10-02 23:15:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-10-02 23:15:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-10-02 23:15:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-10-02 23:15:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-10-02 23:15:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-10-02 23:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-10-02 23:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-10-02 23:15:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-10-02 23:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-10-02 23:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-10-02 23:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-10-02 23:15:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-10-02 23:15:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-10-02 23:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-10-02 23:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-10-02 23:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-10-02 23:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-10-02 23:15:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-10-02 23:15:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-02 23:15:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-02 23:15:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 23:15:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-02 23:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-02 23:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-10-02 23:15:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-10-02 23:15:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-02 23:15:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-10-02 23:15:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-02 23:15:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-02 23:15:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-02 23:15:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-02 23:15:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-02 23:15:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-02 23:15:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-02 23:15:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-02 23:15:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-02 23:15:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-02 23:15:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-02 23:15:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-02 23:15:41,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-02 23:15:41,983 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-02 23:15:41,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-02 23:15:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-02 23:15:41,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 23:15:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-02 23:15:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-02 23:15:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-10-02 23:15:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-02 23:15:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-02 23:15:41,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 23:15:42,000 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-02 23:15:42,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 23:15:42,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 23:15:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 23:15:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-02 23:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 23:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 23:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-02 23:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-02 23:15:42,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-02 23:15:42,004 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-02 23:15:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-10-02 23:15:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-02 23:15:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-10-02 23:15:42,008 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-02 23:15:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-02 23:15:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-10-02 23:15:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-10-02 23:15:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 23:15:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 23:15:42,014 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-10-02 23:15:42,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-02 23:15:42,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-02 23:15:42,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-02 23:15:42,018 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-02 23:15:42,019 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-02 23:15:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-10-02 23:15:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 23:15:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-10-02 23:15:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-02 23:15:42,026 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-10-02 23:15:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-02 23:15:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-10-02 23:15:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-10-02 23:15:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-10-02 23:15:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-02 23:15:42,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-10-02 23:15:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-10-02 23:15:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 23:15:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-10-02 23:15:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-10-02 23:15:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-10-02 23:15:42,038 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 23:15:42,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-02 23:15:42,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 23:15:42,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 23:15:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 23:15:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-02 23:15:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 23:15:42,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-02 23:15:43,498 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-02 23:15:51,754 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 23:15:51,754 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 23:15:51,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:15:51 BoogieIcfgContainer [2019-10-02 23:15:51,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 23:15:51,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 23:15:51,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 23:15:51,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 23:15:51,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:15:38" (1/3) ... [2019-10-02 23:15:51,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b14c146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:15:51, skipping insertion in model container [2019-10-02 23:15:51,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:15:41" (2/3) ... [2019-10-02 23:15:51,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b14c146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:15:51, skipping insertion in model container [2019-10-02 23:15:51,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:15:51" (3/3) ... [2019-10-02 23:15:51,768 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-10-02 23:15:51,780 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 23:15:51,797 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 23:15:51,820 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 23:15:51,857 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 23:15:51,857 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 23:15:51,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 23:15:51,857 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 23:15:51,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 23:15:51,858 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 23:15:51,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 23:15:51,858 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 23:15:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-10-02 23:15:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-02 23:15:51,943 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:51,944 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:51,949 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:51,957 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-10-02 23:15:51,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:52,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:52,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:52,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:52,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:53,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:53,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:53,162 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:53,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:53,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:53,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:53,190 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-10-02 23:15:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:53,481 INFO L93 Difference]: Finished difference Result 2672 states and 3666 transitions. [2019-10-02 23:15:53,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:15:53,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-02 23:15:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:53,545 INFO L225 Difference]: With dead ends: 2672 [2019-10-02 23:15:53,546 INFO L226 Difference]: Without dead ends: 2662 [2019-10-02 23:15:53,548 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-10-02 23:15:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-10-02 23:15:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-10-02 23:15:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3649 transitions. [2019-10-02 23:15:53,890 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3649 transitions. Word has length 29 [2019-10-02 23:15:53,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:53,891 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3649 transitions. [2019-10-02 23:15:53,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:15:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3649 transitions. [2019-10-02 23:15:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-02 23:15:53,893 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:53,894 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:53,894 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:53,894 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-10-02 23:15:53,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:53,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:53,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:53,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:53,906 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:54,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:54,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:54,265 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:54,267 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:54,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:54,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:54,268 INFO L87 Difference]: Start difference. First operand 2657 states and 3649 transitions. Second operand 3 states. [2019-10-02 23:15:54,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:54,388 INFO L93 Difference]: Finished difference Result 3905 states and 5376 transitions. [2019-10-02 23:15:54,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:15:54,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-02 23:15:54,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:54,433 INFO L225 Difference]: With dead ends: 3905 [2019-10-02 23:15:54,433 INFO L226 Difference]: Without dead ends: 3905 [2019-10-02 23:15:54,434 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:54,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2019-10-02 23:15:54,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3892. [2019-10-02 23:15:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3892 states. [2019-10-02 23:15:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 5364 transitions. [2019-10-02 23:15:54,633 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 5364 transitions. Word has length 30 [2019-10-02 23:15:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:54,634 INFO L475 AbstractCegarLoop]: Abstraction has 3892 states and 5364 transitions. [2019-10-02 23:15:54,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:15:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 5364 transitions. [2019-10-02 23:15:54,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-02 23:15:54,639 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:54,640 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:54,640 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:54,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-10-02 23:15:54,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:54,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:54,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:54,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:54,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:55,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:55,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:55,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 23:15:55,556 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:55,557 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 23:15:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 23:15:55,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:15:55,558 INFO L87 Difference]: Start difference. First operand 3892 states and 5364 transitions. Second operand 7 states. [2019-10-02 23:15:55,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:55,675 INFO L93 Difference]: Finished difference Result 3882 states and 5353 transitions. [2019-10-02 23:15:55,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 23:15:55,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2019-10-02 23:15:55,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:55,708 INFO L225 Difference]: With dead ends: 3882 [2019-10-02 23:15:55,709 INFO L226 Difference]: Without dead ends: 3882 [2019-10-02 23:15:55,709 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 23:15:55,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2019-10-02 23:15:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2019-10-02 23:15:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2019-10-02 23:15:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5353 transitions. [2019-10-02 23:15:55,911 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5353 transitions. Word has length 62 [2019-10-02 23:15:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:55,912 INFO L475 AbstractCegarLoop]: Abstraction has 3882 states and 5353 transitions. [2019-10-02 23:15:55,912 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 23:15:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5353 transitions. [2019-10-02 23:15:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-02 23:15:55,914 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:55,914 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:55,914 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:55,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:55,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1848247394, now seen corresponding path program 1 times [2019-10-02 23:15:55,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:55,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:55,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:55,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:55,932 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:57,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:57,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:57,107 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:57,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:57,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:57,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:57,108 INFO L87 Difference]: Start difference. First operand 3882 states and 5353 transitions. Second operand 3 states. [2019-10-02 23:15:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:15:57,247 INFO L93 Difference]: Finished difference Result 7691 states and 10619 transitions. [2019-10-02 23:15:57,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:15:57,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-10-02 23:15:57,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:15:57,318 INFO L225 Difference]: With dead ends: 7691 [2019-10-02 23:15:57,318 INFO L226 Difference]: Without dead ends: 7683 [2019-10-02 23:15:57,319 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2019-10-02 23:15:57,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 6444. [2019-10-02 23:15:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6444 states. [2019-10-02 23:15:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 8889 transitions. [2019-10-02 23:15:57,658 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 8889 transitions. Word has length 65 [2019-10-02 23:15:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:15:57,660 INFO L475 AbstractCegarLoop]: Abstraction has 6444 states and 8889 transitions. [2019-10-02 23:15:57,660 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:15:57,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 8889 transitions. [2019-10-02 23:15:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-02 23:15:57,671 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:15:57,672 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:15:57,673 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:15:57,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:15:57,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1504060568, now seen corresponding path program 1 times [2019-10-02 23:15:57,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:15:57,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:15:57,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:15:57,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:15:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:15:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:15:58,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:15:58,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:15:58,056 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:15:58,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:15:58,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:15:58,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:15:58,058 INFO L87 Difference]: Start difference. First operand 6444 states and 8889 transitions. Second operand 3 states. [2019-10-02 23:16:00,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:00,958 INFO L93 Difference]: Finished difference Result 7675 states and 10594 transitions. [2019-10-02 23:16:00,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:00,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-02 23:16:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:01,028 INFO L225 Difference]: With dead ends: 7675 [2019-10-02 23:16:01,028 INFO L226 Difference]: Without dead ends: 7665 [2019-10-02 23:16:01,029 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2019-10-02 23:16:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 5170. [2019-10-02 23:16:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5170 states. [2019-10-02 23:16:01,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 7123 transitions. [2019-10-02 23:16:01,305 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 7123 transitions. Word has length 80 [2019-10-02 23:16:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:01,309 INFO L475 AbstractCegarLoop]: Abstraction has 5170 states and 7123 transitions. [2019-10-02 23:16:01,309 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:01,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 7123 transitions. [2019-10-02 23:16:01,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-02 23:16:01,313 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:01,313 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:16:01,314 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:01,314 INFO L82 PathProgramCache]: Analyzing trace with hash 556862832, now seen corresponding path program 1 times [2019-10-02 23:16:01,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:01,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:01,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:01,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:01,329 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 23:16:01,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:01,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:01,744 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:01,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:01,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:01,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:01,746 INFO L87 Difference]: Start difference. First operand 5170 states and 7123 transitions. Second operand 8 states. [2019-10-02 23:16:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:01,931 INFO L93 Difference]: Finished difference Result 5155 states and 7104 transitions. [2019-10-02 23:16:02,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:02,047 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2019-10-02 23:16:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:02,090 INFO L225 Difference]: With dead ends: 5155 [2019-10-02 23:16:02,090 INFO L226 Difference]: Without dead ends: 5155 [2019-10-02 23:16:02,091 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-02 23:16:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5155 states. [2019-10-02 23:16:02,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155. [2019-10-02 23:16:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2019-10-02 23:16:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 7104 transitions. [2019-10-02 23:16:02,277 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 7104 transitions. Word has length 96 [2019-10-02 23:16:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:02,278 INFO L475 AbstractCegarLoop]: Abstraction has 5155 states and 7104 transitions. [2019-10-02 23:16:02,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 7104 transitions. [2019-10-02 23:16:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-02 23:16:02,280 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:02,281 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:02,281 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:02,282 INFO L82 PathProgramCache]: Analyzing trace with hash -594444368, now seen corresponding path program 1 times [2019-10-02 23:16:02,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:02,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:02,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:02,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:02,294 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:02,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:02,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:02,680 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:02,681 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:02,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:02,683 INFO L87 Difference]: Start difference. First operand 5155 states and 7104 transitions. Second operand 8 states. [2019-10-02 23:16:02,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:02,887 INFO L93 Difference]: Finished difference Result 3885 states and 5341 transitions. [2019-10-02 23:16:02,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:02,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-02 23:16:02,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:02,933 INFO L225 Difference]: With dead ends: 3885 [2019-10-02 23:16:02,933 INFO L226 Difference]: Without dead ends: 3885 [2019-10-02 23:16:02,934 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-02 23:16:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2019-10-02 23:16:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2019-10-02 23:16:03,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-10-02 23:16:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5341 transitions. [2019-10-02 23:16:03,078 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5341 transitions. Word has length 103 [2019-10-02 23:16:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:03,079 INFO L475 AbstractCegarLoop]: Abstraction has 3885 states and 5341 transitions. [2019-10-02 23:16:03,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5341 transitions. [2019-10-02 23:16:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-02 23:16:03,084 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:03,084 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:03,084 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:03,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:03,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1992954746, now seen corresponding path program 1 times [2019-10-02 23:16:03,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:03,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:03,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:03,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:03,097 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:03,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:03,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:03,478 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:03,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:03,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:03,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:03,481 INFO L87 Difference]: Start difference. First operand 3885 states and 5341 transitions. Second operand 8 states. [2019-10-02 23:16:03,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:03,644 INFO L93 Difference]: Finished difference Result 2659 states and 3632 transitions. [2019-10-02 23:16:03,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:03,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2019-10-02 23:16:03,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:03,657 INFO L225 Difference]: With dead ends: 2659 [2019-10-02 23:16:03,657 INFO L226 Difference]: Without dead ends: 2659 [2019-10-02 23:16:03,658 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-02 23:16:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2019-10-02 23:16:03,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2019-10-02 23:16:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2019-10-02 23:16:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3632 transitions. [2019-10-02 23:16:03,741 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3632 transitions. Word has length 106 [2019-10-02 23:16:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:03,745 INFO L475 AbstractCegarLoop]: Abstraction has 2659 states and 3632 transitions. [2019-10-02 23:16:03,745 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3632 transitions. [2019-10-02 23:16:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-02 23:16:03,752 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:03,752 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:03,752 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:03,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:03,753 INFO L82 PathProgramCache]: Analyzing trace with hash 14046403, now seen corresponding path program 1 times [2019-10-02 23:16:03,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:03,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:03,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:03,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:03,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 23:16:04,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:04,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 23:16:04,247 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:04,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 23:16:04,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 23:16:04,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 23:16:04,248 INFO L87 Difference]: Start difference. First operand 2659 states and 3632 transitions. Second operand 11 states. [2019-10-02 23:16:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:04,458 INFO L93 Difference]: Finished difference Result 1434 states and 1923 transitions. [2019-10-02 23:16:04,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 23:16:04,458 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-10-02 23:16:04,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:04,466 INFO L225 Difference]: With dead ends: 1434 [2019-10-02 23:16:04,466 INFO L226 Difference]: Without dead ends: 1400 [2019-10-02 23:16:04,466 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-02 23:16:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-10-02 23:16:04,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1398. [2019-10-02 23:16:04,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-02 23:16:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1886 transitions. [2019-10-02 23:16:04,507 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1886 transitions. Word has length 110 [2019-10-02 23:16:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:04,507 INFO L475 AbstractCegarLoop]: Abstraction has 1398 states and 1886 transitions. [2019-10-02 23:16:04,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 23:16:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1886 transitions. [2019-10-02 23:16:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-02 23:16:04,509 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:04,509 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:04,510 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1859144313, now seen corresponding path program 1 times [2019-10-02 23:16:04,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:04,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:04,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:04,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:04,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:05,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:05,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 23:16:05,100 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:05,101 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 23:16:05,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 23:16:05,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 23:16:05,102 INFO L87 Difference]: Start difference. First operand 1398 states and 1886 transitions. Second operand 8 states. [2019-10-02 23:16:05,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:05,227 INFO L93 Difference]: Finished difference Result 1389 states and 1873 transitions. [2019-10-02 23:16:05,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 23:16:05,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-10-02 23:16:05,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:05,234 INFO L225 Difference]: With dead ends: 1389 [2019-10-02 23:16:05,234 INFO L226 Difference]: Without dead ends: 1389 [2019-10-02 23:16:05,235 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 23:16:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2019-10-02 23:16:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2019-10-02 23:16:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2019-10-02 23:16:05,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1873 transitions. [2019-10-02 23:16:05,274 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1873 transitions. Word has length 109 [2019-10-02 23:16:05,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:05,275 INFO L475 AbstractCegarLoop]: Abstraction has 1389 states and 1873 transitions. [2019-10-02 23:16:05,275 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 23:16:05,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1873 transitions. [2019-10-02 23:16:05,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-02 23:16:05,277 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:05,278 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:05,278 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:05,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1360408703, now seen corresponding path program 1 times [2019-10-02 23:16:05,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:05,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:05,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:05,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:05,289 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:05,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:05,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 23:16:05,688 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:05,689 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 23:16:05,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 23:16:05,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 23:16:05,690 INFO L87 Difference]: Start difference. First operand 1389 states and 1873 transitions. Second operand 11 states. [2019-10-02 23:16:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:05,905 INFO L93 Difference]: Finished difference Result 1386 states and 1869 transitions. [2019-10-02 23:16:05,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 23:16:05,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-10-02 23:16:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:05,913 INFO L225 Difference]: With dead ends: 1386 [2019-10-02 23:16:05,914 INFO L226 Difference]: Without dead ends: 1386 [2019-10-02 23:16:05,915 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 23:16:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2019-10-02 23:16:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2019-10-02 23:16:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2019-10-02 23:16:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1869 transitions. [2019-10-02 23:16:05,960 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1869 transitions. Word has length 108 [2019-10-02 23:16:05,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:05,960 INFO L475 AbstractCegarLoop]: Abstraction has 1386 states and 1869 transitions. [2019-10-02 23:16:05,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 23:16:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1869 transitions. [2019-10-02 23:16:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-02 23:16:05,964 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:05,965 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 23:16:05,965 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:05,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:05,965 INFO L82 PathProgramCache]: Analyzing trace with hash -780573357, now seen corresponding path program 1 times [2019-10-02 23:16:05,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:05,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:05,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:05,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:05,976 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 23:16:06,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:06,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:16:06,318 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:06,318 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:16:06,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:16:06,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:06,320 INFO L87 Difference]: Start difference. First operand 1386 states and 1869 transitions. Second operand 3 states. [2019-10-02 23:16:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:08,800 INFO L93 Difference]: Finished difference Result 1385 states and 1867 transitions. [2019-10-02 23:16:08,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:08,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-10-02 23:16:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:08,807 INFO L225 Difference]: With dead ends: 1385 [2019-10-02 23:16:08,808 INFO L226 Difference]: Without dead ends: 1337 [2019-10-02 23:16:08,808 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:08,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-10-02 23:16:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-10-02 23:16:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-10-02 23:16:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1817 transitions. [2019-10-02 23:16:08,844 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1817 transitions. Word has length 123 [2019-10-02 23:16:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:08,845 INFO L475 AbstractCegarLoop]: Abstraction has 1337 states and 1817 transitions. [2019-10-02 23:16:08,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1817 transitions. [2019-10-02 23:16:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-02 23:16:08,847 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 23:16:08,848 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 23:16:08,848 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 23:16:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 23:16:08,848 INFO L82 PathProgramCache]: Analyzing trace with hash -994404246, now seen corresponding path program 1 times [2019-10-02 23:16:08,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 23:16:08,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:08,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 23:16:08,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 23:16:08,857 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 23:16:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 23:16:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-02 23:16:09,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 23:16:09,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 23:16:09,163 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 23:16:09,163 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 23:16:09,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 23:16:09,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:09,165 INFO L87 Difference]: Start difference. First operand 1337 states and 1817 transitions. Second operand 3 states. [2019-10-02 23:16:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 23:16:11,625 INFO L93 Difference]: Finished difference Result 1334 states and 1814 transitions. [2019-10-02 23:16:11,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 23:16:11,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-02 23:16:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 23:16:11,628 INFO L225 Difference]: With dead ends: 1334 [2019-10-02 23:16:11,629 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 23:16:11,629 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 23:16:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 23:16:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 23:16:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 23:16:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 23:16:11,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2019-10-02 23:16:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 23:16:11,630 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 23:16:11,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 23:16:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 23:16:11,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 23:16:11,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:16:11 BoogieIcfgContainer [2019-10-02 23:16:11,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 23:16:11,641 INFO L168 Benchmark]: Toolchain (without parser) took 33295.38 ms. Allocated memory was 137.4 MB in the beginning and 815.8 MB in the end (delta: 678.4 MB). Free memory was 77.8 MB in the beginning and 261.2 MB in the end (delta: -183.4 MB). Peak memory consumption was 495.1 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,643 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3123.00 ms. Allocated memory was 137.4 MB in the beginning and 270.5 MB in the end (delta: 133.2 MB). Free memory was 77.4 MB in the beginning and 203.1 MB in the end (delta: -125.7 MB). Peak memory consumption was 107.5 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,648 INFO L168 Benchmark]: Boogie Preprocessor took 380.95 ms. Allocated memory is still 270.5 MB. Free memory was 203.1 MB in the beginning and 171.2 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,654 INFO L168 Benchmark]: RCFGBuilder took 9906.21 ms. Allocated memory was 270.5 MB in the beginning and 469.8 MB in the end (delta: 199.2 MB). Free memory was 171.2 MB in the beginning and 113.5 MB in the end (delta: 57.7 MB). Peak memory consumption was 338.5 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,656 INFO L168 Benchmark]: TraceAbstraction took 19879.46 ms. Allocated memory was 469.8 MB in the beginning and 815.8 MB in the end (delta: 346.0 MB). Free memory was 113.5 MB in the beginning and 261.2 MB in the end (delta: -147.7 MB). Peak memory consumption was 198.3 MB. Max. memory is 7.1 GB. [2019-10-02 23:16:11,670 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 137.4 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3123.00 ms. Allocated memory was 137.4 MB in the beginning and 270.5 MB in the end (delta: 133.2 MB). Free memory was 77.4 MB in the beginning and 203.1 MB in the end (delta: -125.7 MB). Peak memory consumption was 107.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 380.95 ms. Allocated memory is still 270.5 MB. Free memory was 203.1 MB in the beginning and 171.2 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9906.21 ms. Allocated memory was 270.5 MB in the beginning and 469.8 MB in the end (delta: 199.2 MB). Free memory was 171.2 MB in the beginning and 113.5 MB in the end (delta: 57.7 MB). Peak memory consumption was 338.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19879.46 ms. Allocated memory was 469.8 MB in the beginning and 815.8 MB in the end (delta: 346.0 MB). Free memory was 113.5 MB in the beginning and 261.2 MB in the end (delta: -147.7 MB). Peak memory consumption was 198.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5603]: 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 161 procedures, 1580 locations, 1 error locations. SAFE Result, 19.7s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 10.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28776 SDtfs, 10926 SDslu, 94690 SDs, 0 SdLazy, 379 SolverSat, 27 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6444occurred in iteration=4, 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: 1.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 3754 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1147 NumberOfCodeBlocks, 1147 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1134 ConstructedInterpolants, 0 QuantifiedInterpolants, 147640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 34/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...