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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:42:38,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:42:38,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:42:38,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:42:38,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:42:38,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:42:38,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:42:38,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:42:38,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:42:38,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:42:38,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:42:38,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:42:38,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:42:38,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:42:38,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:42:38,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:42:38,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:42:38,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:42:38,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:42:38,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:42:38,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:42:38,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:42:38,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:42:38,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:42:38,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:42:38,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:42:38,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:42:38,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:42:38,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:42:38,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:42:38,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:42:38,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:42:38,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:42:38,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:42:38,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:42:38,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:42:38,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:42:38,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:42:38,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:42:38,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:42:38,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:42:38,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:42:38,474 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:42:38,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:42:38,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:42:38,474 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:42:38,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:42:38,475 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:42:38,476 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:42:38,476 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:42:38,476 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:42:38,476 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:42:38,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:42:38,477 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:42:38,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:42:38,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:42:38,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:42:38,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:42:38,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:42:38,478 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:42:38,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:42:38,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:42:38,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:42:38,479 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:42:38,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:42:38,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:42:38,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:42:38,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:42:38,480 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:42:38,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:42:38,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:42:38,481 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:42:38,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:42:38,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:42:38,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:42:38,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:42:38,536 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:42:38,537 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-20 13:42:38,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5bea1f7/d05bdc096ec8483c9dc5f118548dd6b8/FLAGcf0ea4f41 [2019-09-20 13:42:39,401 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:42:39,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-20 13:42:39,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5bea1f7/d05bdc096ec8483c9dc5f118548dd6b8/FLAGcf0ea4f41 [2019-09-20 13:42:39,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5bea1f7/d05bdc096ec8483c9dc5f118548dd6b8 [2019-09-20 13:42:39,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:42:39,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:42:39,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:42:39,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:42:39,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:42:39,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:42:39" (1/1) ... [2019-09-20 13:42:39,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:39, skipping insertion in model container [2019-09-20 13:42:39,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:42:39" (1/1) ... [2019-09-20 13:42:39,989 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:42:40,129 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:42:41,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:42:41,947 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:42:42,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:42:42,648 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:42:42,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42 WrapperNode [2019-09-20 13:42:42,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:42:42,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:42:42,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:42:42,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:42:42,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... [2019-09-20 13:42:42,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:42:42,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:42:42,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:42:42,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:42:43,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:42:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:42:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-20 13:42:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-20 13:42:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:42:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-20 13:42:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-20 13:42:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-09-20 13:42:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-20 13:42:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-20 13:42:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-20 13:42:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-09-20 13:42:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-20 13:42:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-20 13:42:43,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-20 13:42:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-20 13:42:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-20 13:42:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-20 13:42:43,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-20 13:42:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-09-20 13:42:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-09-20 13:42:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-20 13:42:43,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-20 13:42:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-09-20 13:42:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-20 13:42:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-20 13:42:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-20 13:42:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-09-20 13:42:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-20 13:42:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-09-20 13:42:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-09-20 13:42:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-09-20 13:42:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-09-20 13:42:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-09-20 13:42:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-09-20 13:42:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-09-20 13:42:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-09-20 13:42:43,083 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-09-20 13:42:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-09-20 13:42:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-09-20 13:42:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-09-20 13:42:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-09-20 13:42:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-09-20 13:42:43,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-09-20 13:42:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-09-20 13:42:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-09-20 13:42:43,086 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-09-20 13:42:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-09-20 13:42:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-09-20 13:42:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-09-20 13:42:43,087 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-09-20 13:42:43,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-09-20 13:42:43,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-09-20 13:42:43,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-09-20 13:42:43,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-09-20 13:42:43,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-09-20 13:42:43,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-09-20 13:42:43,091 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-20 13:42:43,091 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:42:43,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:42:43,092 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-09-20 13:42:43,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-09-20 13:42:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-20 13:42:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-09-20 13:42:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-09-20 13:42:43,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-20 13:42:43,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-09-20 13:42:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-09-20 13:42:43,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 13:42:43,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-09-20 13:42:43,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-20 13:42:43,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-20 13:42:43,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-20 13:42:43,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-20 13:42:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-20 13:42:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-20 13:42:43,099 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-20 13:42:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-20 13:42:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-20 13:42:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-20 13:42:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:42:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-09-20 13:42:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-09-20 13:42:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-09-20 13:42:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-09-20 13:42:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-09-20 13:42:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-09-20 13:42:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-20 13:42:43,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-20 13:42:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-20 13:42:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-09-20 13:42:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 13:42:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-20 13:42:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:42:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-09-20 13:42:43,115 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-20 13:42:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 13:42:43,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 13:42:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-20 13:42:43,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-20 13:42:43,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:42:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-20 13:42:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-20 13:42:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-20 13:42:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-20 13:42:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-20 13:42:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-20 13:42:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-09-20 13:42:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-20 13:42:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-20 13:42:43,125 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-20 13:42:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-09-20 13:42:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-09-20 13:42:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:42:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-20 13:42:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-20 13:42:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-09-20 13:42:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-09-20 13:42:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-09-20 13:42:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-09-20 13:42:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-09-20 13:42:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:42:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-09-20 13:42:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 13:42:43,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-20 13:42:43,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-09-20 13:42:43,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-09-20 13:42:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-09-20 13:42:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-20 13:42:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-09-20 13:42:43,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-09-20 13:42:43,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-09-20 13:42:43,149 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-09-20 13:42:43,150 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-09-20 13:42:43,151 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-09-20 13:42:43,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-09-20 13:42:43,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-20 13:42:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-20 13:42:43,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-20 13:42:43,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-20 13:42:44,377 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-20 13:42:51,782 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:42:51,782 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:42:51,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:42:51 BoogieIcfgContainer [2019-09-20 13:42:51,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:42:51,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:42:51,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:42:51,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:42:51,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:42:39" (1/3) ... [2019-09-20 13:42:51,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702934fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:42:51, skipping insertion in model container [2019-09-20 13:42:51,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:42:42" (2/3) ... [2019-09-20 13:42:51,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702934fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:42:51, skipping insertion in model container [2019-09-20 13:42:51,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:42:51" (3/3) ... [2019-09-20 13:42:51,796 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2019-09-20 13:42:51,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:42:51,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:42:51,829 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:42:51,851 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:42:51,851 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:42:51,851 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:42:51,852 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:42:51,852 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:42:51,852 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:42:51,852 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:42:51,852 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:42:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-09-20 13:42:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:42:51,904 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:51,906 INFO L407 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] [2019-09-20 13:42:51,908 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:51,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:51,914 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-09-20 13:42:51,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:51,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:51,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:51,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:51,996 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:52,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:52,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:52,875 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:52,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:52,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:52,898 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-09-20 13:42:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:53,186 INFO L93 Difference]: Finished difference Result 2672 states and 3667 transitions. [2019-09-20 13:42:53,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:53,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-20 13:42:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:53,252 INFO L225 Difference]: With dead ends: 2672 [2019-09-20 13:42:53,252 INFO L226 Difference]: Without dead ends: 2662 [2019-09-20 13:42:53,254 INFO L636 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 [2019-09-20 13:42:53,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-09-20 13:42:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-09-20 13:42:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-09-20 13:42:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3650 transitions. [2019-09-20 13:42:53,516 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3650 transitions. Word has length 29 [2019-09-20 13:42:53,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:53,517 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3650 transitions. [2019-09-20 13:42:53,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:53,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3650 transitions. [2019-09-20 13:42:53,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-20 13:42:53,521 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:53,521 INFO L407 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] [2019-09-20 13:42:53,521 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:53,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:53,522 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-09-20 13:42:53,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:53,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:53,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:53,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:53,538 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:53,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:53,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:42:53,961 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:53,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:42:53,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:42:53,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:42:53,964 INFO L87 Difference]: Start difference. First operand 2657 states and 3650 transitions. Second operand 3 states. [2019-09-20 13:42:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:42:54,081 INFO L93 Difference]: Finished difference Result 5261 states and 7231 transitions. [2019-09-20 13:42:54,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:42:54,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-20 13:42:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:42:54,120 INFO L225 Difference]: With dead ends: 5261 [2019-09-20 13:42:54,121 INFO L226 Difference]: Without dead ends: 5261 [2019-09-20 13:42:54,122 INFO L636 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 [2019-09-20 13:42:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2019-09-20 13:42:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5245. [2019-09-20 13:42:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2019-09-20 13:42:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7216 transitions. [2019-09-20 13:42:54,358 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7216 transitions. Word has length 30 [2019-09-20 13:42:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:42:54,359 INFO L475 AbstractCegarLoop]: Abstraction has 5245 states and 7216 transitions. [2019-09-20 13:42:54,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:42:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7216 transitions. [2019-09-20 13:42:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:42:54,365 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:42:54,365 INFO L407 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] [2019-09-20 13:42:54,366 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:42:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:42:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash -183738392, now seen corresponding path program 1 times [2019-09-20 13:42:54,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:42:54,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:54,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:42:54,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:42:54,380 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:42:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:42:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:42:54,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:42:54,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:42:54,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:42:54,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:42:54,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:42:54,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:42:54,888 INFO L87 Difference]: Start difference. First operand 5245 states and 7216 transitions. Second operand 4 states. [2019-09-20 13:43:04,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:04,924 INFO L93 Difference]: Finished difference Result 10373 states and 14291 transitions. [2019-09-20 13:43:04,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:43:04,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2019-09-20 13:43:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:04,995 INFO L225 Difference]: With dead ends: 10373 [2019-09-20 13:43:04,995 INFO L226 Difference]: Without dead ends: 10364 [2019-09-20 13:43:04,996 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:43:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2019-09-20 13:43:05,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 9109. [2019-09-20 13:43:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9109 states. [2019-09-20 13:43:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9109 states to 9109 states and 12543 transitions. [2019-09-20 13:43:05,351 INFO L78 Accepts]: Start accepts. Automaton has 9109 states and 12543 transitions. Word has length 60 [2019-09-20 13:43:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:05,352 INFO L475 AbstractCegarLoop]: Abstraction has 9109 states and 12543 transitions. [2019-09-20 13:43:05,352 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:43:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9109 states and 12543 transitions. [2019-09-20 13:43:05,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:43:05,361 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:05,361 INFO L407 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] [2019-09-20 13:43:05,362 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:05,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-09-20 13:43:05,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:05,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:05,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:05,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:05,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:06,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:43:06,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:06,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-20 13:43:06,539 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:06,540 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-20 13:43:06,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-20 13:43:06,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:43:06,541 INFO L87 Difference]: Start difference. First operand 9109 states and 12543 transitions. Second operand 12 states. [2019-09-20 13:43:09,509 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-09-20 13:43:09,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:43:09,978 INFO L93 Difference]: Finished difference Result 11589 states and 15983 transitions. [2019-09-20 13:43:09,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-20 13:43:09,979 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2019-09-20 13:43:09,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:43:10,047 INFO L225 Difference]: With dead ends: 11589 [2019-09-20 13:43:10,048 INFO L226 Difference]: Without dead ends: 11589 [2019-09-20 13:43:10,048 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2019-09-20 13:43:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2019-09-20 13:43:10,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 7870. [2019-09-20 13:43:10,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7870 states. [2019-09-20 13:43:10,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7870 states to 7870 states and 10818 transitions. [2019-09-20 13:43:10,339 INFO L78 Accepts]: Start accepts. Automaton has 7870 states and 10818 transitions. Word has length 62 [2019-09-20 13:43:10,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:43:10,340 INFO L475 AbstractCegarLoop]: Abstraction has 7870 states and 10818 transitions. [2019-09-20 13:43:10,340 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-20 13:43:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7870 states and 10818 transitions. [2019-09-20 13:43:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-20 13:43:10,342 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:43:10,342 INFO L407 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] [2019-09-20 13:43:10,342 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:43:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:43:10,343 INFO L82 PathProgramCache]: Analyzing trace with hash 409253441, now seen corresponding path program 1 times [2019-09-20 13:43:10,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:43:10,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:10,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:43:10,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:43:10,353 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:43:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:43:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-20 13:43:10,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:43:10,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-20 13:43:10,878 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:43:10,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-20 13:43:10,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-20 13:43:10,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:43:10,879 INFO L87 Difference]: Start difference. First operand 7870 states and 10818 transitions. Second operand 14 states.