java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 15:51:41,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 15:51:41,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 15:51:41,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 15:51:41,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 15:51:41,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 15:51:41,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 15:51:41,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 15:51:41,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 15:51:41,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 15:51:41,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 15:51:41,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 15:51:41,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 15:51:41,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 15:51:41,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 15:51:41,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 15:51:41,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 15:51:41,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 15:51:41,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 15:51:41,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 15:51:41,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 15:51:41,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 15:51:41,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 15:51:41,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 15:51:41,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 15:51:41,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 15:51:41,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 15:51:41,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 15:51:41,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 15:51:41,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 15:51:41,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 15:51:41,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 15:51:41,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 15:51:41,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 15:51:41,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 15:51:41,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 15:51:41,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 15:51:41,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 15:51:41,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 15:51:41,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 15:51:41,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 15:51:41,348 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 15:51:41,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 15:51:41,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 15:51:41,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 15:51:41,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 15:51:41,376 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 15:51:41,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 15:51:41,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 15:51:41,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 15:51:41,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 15:51:41,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 15:51:41,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 15:51:41,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 15:51:41,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 15:51:41,378 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 15:51:41,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 15:51:41,378 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 15:51:41,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 15:51:41,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 15:51:41,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 15:51:41,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 15:51:41,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 15:51:41,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 15:51:41,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 15:51:41,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 15:51:41,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 15:51:41,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 15:51:41,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 15:51:41,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 15:51:41,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 15:51:41,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 15:51:41,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 15:51:41,428 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 15:51:41,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 15:51:41,430 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 15:51:41,431 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2019-09-08 15:51:41,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0652f9a/713e4e34673b4ada92a8add13df3a431/FLAG9c8cee698 [2019-09-08 15:51:42,470 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 15:51:42,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2019-09-08 15:51:42,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0652f9a/713e4e34673b4ada92a8add13df3a431/FLAG9c8cee698 [2019-09-08 15:51:42,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0652f9a/713e4e34673b4ada92a8add13df3a431 [2019-09-08 15:51:42,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 15:51:42,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 15:51:42,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 15:51:42,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 15:51:42,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 15:51:42,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:51:42" (1/1) ... [2019-09-08 15:51:42,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c72e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:42, skipping insertion in model container [2019-09-08 15:51:42,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:51:42" (1/1) ... [2019-09-08 15:51:42,877 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 15:51:43,049 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 15:51:45,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 15:51:45,972 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 15:51:46,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 15:51:47,131 INFO L192 MainTranslator]: Completed translation [2019-09-08 15:51:47,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47 WrapperNode [2019-09-08 15:51:47,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 15:51:47,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 15:51:47,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 15:51:47,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 15:51:47,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (1/1) ... [2019-09-08 15:51:47,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 15:51:47,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 15:51:47,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 15:51:47,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 15:51:47,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (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 [2019-09-08 15:51:47,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 15:51:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 15:51:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 15:51:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 15:51:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-08 15:51:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-08 15:51:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-08 15:51:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-09-08 15:51:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2019-09-08 15:51:47,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-08 15:51:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-08 15:51:47,710 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-08 15:51:47,710 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-08 15:51:47,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-09-08 15:51:47,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-09-08 15:51:47,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-09-08 15:51:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-08 15:51:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-08 15:51:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-08 15:51:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-08 15:51:47,715 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-09-08 15:51:47,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-09-08 15:51:47,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-09-08 15:51:47,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-09-08 15:51:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-09-08 15:51:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-09-08 15:51:47,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-09-08 15:51:47,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-09-08 15:51:47,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure device_is_registered [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure device_enable_async_suspend [2019-09-08 15:51:47,720 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-09-08 15:51:47,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-08 15:51:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2019-09-08 15:51:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2019-09-08 15:51:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_console_init [2019-09-08 15:51:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_console_exit [2019-09-08 15:51:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_console_disconnect [2019-09-08 15:51:47,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_get_by_index [2019-09-08 15:51:47,723 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_serial [2019-09-08 15:51:47,723 INFO L138 BoogieDeclarations]: Found implementation of procedure return_serial [2019-09-08 15:51:47,723 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2019-09-08 15:51:47,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_close [2019-09-08 15:51:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2019-09-08 15:51:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2019-09-08 15:51:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2019-09-08 15:51:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2019-09-08 15:51:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2019-09-08 15:51:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2019-09-08 15:51:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2019-09-08 15:51:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2019-09-08 15:51:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2019-09-08 15:51:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_show [2019-09-08 15:51:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2019-09-08 15:51:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2019-09-08 15:51:47,727 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2019-09-08 15:51:47,805 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_unpoison_urbs [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_release [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure create_serial [2019-09-08 15:51:47,806 INFO L138 BoogieDeclarations]: Found implementation of procedure match_dynamic_id [2019-09-08 15:51:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2019-09-08 15:51:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure search_serial_device [2019-09-08 15:51:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2019-09-08 15:51:47,807 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2019-09-08 15:51:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_init [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_exit [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_operations_init [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register_drivers [2019-09-08 15:51:47,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-09-08 15:51:47,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_8 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2019-09-08 15:51:47,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-09-08 15:51:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-09-08 15:51:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-09-08 15:51:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2019-09-08 15:51:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2019-09-08 15:51:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_19 [2019-09-08 15:51:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_20 [2019-09-08 15:51:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2019-09-08 15:51:47,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2019-09-08 15:51:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-09-08 15:51:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_24 [2019-09-08 15:51:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_25 [2019-09-08 15:51:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2019-09-08 15:51:47,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_27 [2019-09-08 15:51:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_28 [2019-09-08 15:51:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2019-09-08 15:51:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2019-09-08 15:51:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_31 [2019-09-08 15:51:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_32 [2019-09-08 15:51:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_33 [2019-09-08 15:51:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_34 [2019-09-08 15:51:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_35 [2019-09-08 15:51:47,818 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit_lock [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-08 15:51:47,819 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-08 15:51:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-09-08 15:51:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-08 15:51:47,820 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-09-08 15:51:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-09-08 15:51:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-08 15:51:47,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_register [2019-09-08 15:51:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_deregister [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_close [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_prepare_write_buffer [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_room [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_chars_in_buffer [2019-09-08 15:51:47,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_process_read_urb [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2019-09-08 15:51:47,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_tiocmiwait [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_get_icount [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_break [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_dcd_change [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2019-09-08 15:51:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main1_sequence_infinite_withcheck_stateful [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_71 [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_72 [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_73 [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_74 [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_75 [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2019-09-08 15:51:47,826 INFO L138 BoogieDeclarations]: Found implementation of procedure show_port_number [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure store_new_id [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure show_dynids [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dynids [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_bus_register [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_bus_deregister [2019-09-08 15:51:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main2_sequence_infinite_withcheck_stateful [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_81 [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_82 [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_83 [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_84 [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_85 [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-08 15:51:47,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-09-08 15:51:47,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_table_lock [2019-09-08 15:51:47,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-08 15:51:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2019-09-08 15:51:47,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_max_r [2019-09-08 15:51:47,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2019-09-08 15:51:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2019-09-08 15:51:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-08 15:51:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-08 15:51:47,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-08 15:51:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-09-08 15:51:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-08 15:51:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-09-08 15:51:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_register [2019-09-08 15:51:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2019-09-08 15:51:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-08 15:51:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-08 15:51:47,838 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-08 15:51:47,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-08 15:51:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure device_add [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure device_del [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure device_initialize [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-09-08 15:51:47,844 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_attach [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_register [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_sysrq [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-08 15:51:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2019-09-08 15:51:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-09-08 15:51:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-08 15:51:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-08 15:51:47,846 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2019-09-08 15:51:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-08 15:51:47,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-08 15:51:47,849 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_putc [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-09-08 15:51:47,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-09-08 15:51:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_install [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_device [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2019-09-08 15:51:47,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2019-09-08 15:51:47,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2019-09-08 15:51:47,854 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_show_dynids [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-08 15:51:47,855 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-08 15:51:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-08 15:51:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 15:51:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-08 15:51:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-08 15:51:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-08 15:51:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 15:51:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 15:51:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-09-08 15:51:47,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_8 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-09-08 15:51:47,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_20 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_25 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_27 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_28 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2019-09-08 15:51:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_31 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_33 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_35 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2019-09-08 15:51:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_19 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_24 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2019-09-08 15:51:47,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_32 [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_34 [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-09-08 15:51:47,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-08 15:51:47,865 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-08 15:51:47,866 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-08 15:51:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 15:51:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-09-08 15:51:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2019-09-08 15:51:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_install [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_putc [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2019-09-08 15:51:47,871 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-09-08 15:51:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure bus_register [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2019-09-08 15:51:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure device_is_registered [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure device_enable_async_suspend [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure device_initialize [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure device_add [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure device_del [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure driver_attach [2019-09-08 15:51:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-09-08 15:51:47,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-08 15:51:47,876 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-08 15:51:47,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register_drivers [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2019-09-08 15:51:47,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_console_init [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_console_exit [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_console_disconnect [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_get_by_index [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2019-09-08 15:51:47,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_close [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_room [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_chars_in_buffer [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_register [2019-09-08 15:51:47,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_deregister [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_process_read_urb [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_prepare_write_buffer [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_bus_register [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_bus_deregister [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_serial [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure return_serial [2019-09-08 15:51:47,881 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_close [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2019-09-08 15:51:47,882 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2019-09-08 15:51:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_show [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2019-09-08 15:51:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_unpoison_urbs [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_release [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure create_serial [2019-09-08 15:51:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure match_dynamic_id [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure search_serial_device [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2019-09-08 15:51:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_init [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_exit [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_operations_init [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2019-09-08 15:51:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit_lock [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-08 15:51:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_74 [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_72 [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_75 [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_71 [2019-09-08 15:51:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_73 [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-09-08 15:51:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure handle_sysrq [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-09-08 15:51:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2019-09-08 15:51:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_max_r [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_tiocmiwait [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_get_icount [2019-09-08 15:51:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_break [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_dcd_change [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2019-09-08 15:51:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main1_sequence_infinite_withcheck_stateful [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_84 [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_82 [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_85 [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_81 [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_83 [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_device [2019-09-08 15:51:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure driver_register [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_show_dynids [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure show_port_number [2019-09-08 15:51:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure store_new_id [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure show_dynids [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure free_dynids [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main2_sequence_infinite_withcheck_stateful [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_disc_mutex_of_usb_serial [2019-09-08 15:51:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_disc_mutex_of_usb_serial [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_disc_mutex_of_usb_serial [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_disc_mutex_of_usb_serial [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-09-08 15:51:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_table_lock [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_table_lock [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_table_lock [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_table_lock [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_table_lock [2019-09-08 15:51:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 15:51:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 15:51:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-08 15:51:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 15:52:18,421 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 15:52:18,422 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 15:52:18,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:52:18 BoogieIcfgContainer [2019-09-08 15:52:18,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 15:52:18,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 15:52:18,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 15:52:18,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 15:52:18,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:51:42" (1/3) ... [2019-09-08 15:52:18,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ddaee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:52:18, skipping insertion in model container [2019-09-08 15:52:18,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:51:47" (2/3) ... [2019-09-08 15:52:18,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ddaee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:52:18, skipping insertion in model container [2019-09-08 15:52:18,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:52:18" (3/3) ... [2019-09-08 15:52:18,434 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--serial--usbserial.ko-ldv_main0.cil.out.i [2019-09-08 15:52:18,445 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 15:52:18,458 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 15:52:18,476 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 15:52:18,537 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 15:52:18,538 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 15:52:18,538 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 15:52:18,538 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 15:52:18,538 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 15:52:18,538 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 15:52:18,538 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 15:52:18,538 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 15:52:18,539 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 15:52:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states. [2019-09-08 15:52:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-08 15:52:18,618 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:18,619 INFO L399 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] [2019-09-08 15:52:18,622 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:18,628 INFO L82 PathProgramCache]: Analyzing trace with hash 140475962, now seen corresponding path program 1 times [2019-09-08 15:52:18,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:18,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:18,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:18,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:18,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 15:52:19,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:19,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 15:52:19,964 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 15:52:19,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 15:52:19,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:19,987 INFO L87 Difference]: Start difference. First operand 2698 states. Second operand 3 states. [2019-09-08 15:52:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:25,008 INFO L93 Difference]: Finished difference Result 6765 states and 9187 transitions. [2019-09-08 15:52:25,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 15:52:25,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-09-08 15:52:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:25,083 INFO L225 Difference]: With dead ends: 6765 [2019-09-08 15:52:25,084 INFO L226 Difference]: Without dead ends: 4415 [2019-09-08 15:52:25,111 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2019-09-08 15:52:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4410. [2019-09-08 15:52:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4410 states. [2019-09-08 15:52:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 5818 transitions. [2019-09-08 15:52:25,513 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 5818 transitions. Word has length 50 [2019-09-08 15:52:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:25,514 INFO L475 AbstractCegarLoop]: Abstraction has 4410 states and 5818 transitions. [2019-09-08 15:52:25,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 15:52:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 5818 transitions. [2019-09-08 15:52:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-08 15:52:25,517 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:25,517 INFO L399 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] [2019-09-08 15:52:25,518 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:25,518 INFO L82 PathProgramCache]: Analyzing trace with hash 58388610, now seen corresponding path program 1 times [2019-09-08 15:52:25,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:25,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:25,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:25,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:25,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 15:52:26,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:26,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 15:52:26,018 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 15:52:26,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 15:52:26,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:26,020 INFO L87 Difference]: Start difference. First operand 4410 states and 5818 transitions. Second operand 3 states. [2019-09-08 15:52:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:30,958 INFO L93 Difference]: Finished difference Result 4412 states and 5819 transitions. [2019-09-08 15:52:30,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 15:52:30,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-08 15:52:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:30,992 INFO L225 Difference]: With dead ends: 4412 [2019-09-08 15:52:30,992 INFO L226 Difference]: Without dead ends: 4409 [2019-09-08 15:52:30,996 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:31,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2019-09-08 15:52:31,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4409. [2019-09-08 15:52:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4409 states. [2019-09-08 15:52:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4409 states to 4409 states and 5816 transitions. [2019-09-08 15:52:31,222 INFO L78 Accepts]: Start accepts. Automaton has 4409 states and 5816 transitions. Word has length 51 [2019-09-08 15:52:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:31,222 INFO L475 AbstractCegarLoop]: Abstraction has 4409 states and 5816 transitions. [2019-09-08 15:52:31,222 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 15:52:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4409 states and 5816 transitions. [2019-09-08 15:52:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 15:52:31,224 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:31,225 INFO L399 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] [2019-09-08 15:52:31,225 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:31,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:31,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1808652861, now seen corresponding path program 1 times [2019-09-08 15:52:31,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:31,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:31,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:31,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:31,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 15:52:31,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:31,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 15:52:31,695 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 15:52:31,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 15:52:31,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:31,696 INFO L87 Difference]: Start difference. First operand 4409 states and 5816 transitions. Second operand 3 states. [2019-09-08 15:52:36,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:36,557 INFO L93 Difference]: Finished difference Result 4411 states and 5817 transitions. [2019-09-08 15:52:36,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 15:52:36,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-08 15:52:36,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:36,589 INFO L225 Difference]: With dead ends: 4411 [2019-09-08 15:52:36,589 INFO L226 Difference]: Without dead ends: 4408 [2019-09-08 15:52:36,593 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2019-09-08 15:52:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4408. [2019-09-08 15:52:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4408 states. [2019-09-08 15:52:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5814 transitions. [2019-09-08 15:52:36,811 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5814 transitions. Word has length 52 [2019-09-08 15:52:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:36,811 INFO L475 AbstractCegarLoop]: Abstraction has 4408 states and 5814 transitions. [2019-09-08 15:52:36,811 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 15:52:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5814 transitions. [2019-09-08 15:52:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-08 15:52:36,813 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:36,814 INFO L399 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] [2019-09-08 15:52:36,814 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:36,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:36,814 INFO L82 PathProgramCache]: Analyzing trace with hash 232274661, now seen corresponding path program 1 times [2019-09-08 15:52:36,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:36,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:36,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:36,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:36,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 15:52:37,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:37,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 15:52:37,265 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 15:52:37,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 15:52:37,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 15:52:37,266 INFO L87 Difference]: Start difference. First operand 4408 states and 5814 transitions. Second operand 4 states. [2019-09-08 15:52:48,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:48,744 INFO L93 Difference]: Finished difference Result 4572 states and 5980 transitions. [2019-09-08 15:52:48,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 15:52:48,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-09-08 15:52:48,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:48,777 INFO L225 Difference]: With dead ends: 4572 [2019-09-08 15:52:48,777 INFO L226 Difference]: Without dead ends: 4550 [2019-09-08 15:52:48,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:52:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2019-09-08 15:52:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4544. [2019-09-08 15:52:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4544 states. [2019-09-08 15:52:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 5943 transitions. [2019-09-08 15:52:49,019 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 5943 transitions. Word has length 53 [2019-09-08 15:52:49,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:49,020 INFO L475 AbstractCegarLoop]: Abstraction has 4544 states and 5943 transitions. [2019-09-08 15:52:49,020 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 15:52:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 5943 transitions. [2019-09-08 15:52:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-08 15:52:49,028 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:49,028 INFO L399 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] [2019-09-08 15:52:49,029 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash 275793192, now seen corresponding path program 1 times [2019-09-08 15:52:49,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:49,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:49,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:49,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:49,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 15:52:49,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:49,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 15:52:49,511 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 15:52:49,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 15:52:49,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:52:49,512 INFO L87 Difference]: Start difference. First operand 4544 states and 5943 transitions. Second operand 5 states. [2019-09-08 15:52:49,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:49,754 INFO L93 Difference]: Finished difference Result 8859 states and 11597 transitions. [2019-09-08 15:52:49,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 15:52:49,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2019-09-08 15:52:49,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:49,794 INFO L225 Difference]: With dead ends: 8859 [2019-09-08 15:52:49,795 INFO L226 Difference]: Without dead ends: 4544 [2019-09-08 15:52:49,822 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:52:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2019-09-08 15:52:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 4544. [2019-09-08 15:52:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4544 states. [2019-09-08 15:52:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 5942 transitions. [2019-09-08 15:52:50,044 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 5942 transitions. Word has length 81 [2019-09-08 15:52:50,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:50,044 INFO L475 AbstractCegarLoop]: Abstraction has 4544 states and 5942 transitions. [2019-09-08 15:52:50,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 15:52:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 5942 transitions. [2019-09-08 15:52:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 15:52:50,049 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:50,050 INFO L399 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] [2019-09-08 15:52:50,050 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 658096298, now seen corresponding path program 1 times [2019-09-08 15:52:50,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:50,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:50,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:50,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:50,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 15:52:50,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:50,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 15:52:50,488 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 15:52:50,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 15:52:50,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:50,489 INFO L87 Difference]: Start difference. First operand 4544 states and 5942 transitions. Second operand 3 states. [2019-09-08 15:52:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:50,681 INFO L93 Difference]: Finished difference Result 9054 states and 11846 transitions. [2019-09-08 15:52:50,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 15:52:50,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-09-08 15:52:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:50,733 INFO L225 Difference]: With dead ends: 9054 [2019-09-08 15:52:50,734 INFO L226 Difference]: Without dead ends: 4546 [2019-09-08 15:52:50,758 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2019-09-08 15:52:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4545. [2019-09-08 15:52:50,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4545 states. [2019-09-08 15:52:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 5943 transitions. [2019-09-08 15:52:50,975 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 5943 transitions. Word has length 94 [2019-09-08 15:52:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:50,976 INFO L475 AbstractCegarLoop]: Abstraction has 4545 states and 5943 transitions. [2019-09-08 15:52:50,976 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 15:52:50,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 5943 transitions. [2019-09-08 15:52:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-08 15:52:50,980 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:50,980 INFO L399 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] [2019-09-08 15:52:50,981 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:50,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:50,981 INFO L82 PathProgramCache]: Analyzing trace with hash -830709402, now seen corresponding path program 1 times [2019-09-08 15:52:50,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:50,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:50,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:50,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:50,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-08 15:52:51,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:51,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 15:52:51,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 15:52:51,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 15:52:51,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 15:52:51,418 INFO L87 Difference]: Start difference. First operand 4545 states and 5943 transitions. Second operand 6 states. [2019-09-08 15:52:53,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:52:53,741 INFO L93 Difference]: Finished difference Result 8860 states and 11597 transitions. [2019-09-08 15:52:53,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 15:52:53,741 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2019-09-08 15:52:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:52:53,778 INFO L225 Difference]: With dead ends: 8860 [2019-09-08 15:52:53,778 INFO L226 Difference]: Without dead ends: 4529 [2019-09-08 15:52:53,811 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-08 15:52:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2019-09-08 15:52:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4529. [2019-09-08 15:52:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4529 states. [2019-09-08 15:52:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 5922 transitions. [2019-09-08 15:52:54,286 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 5922 transitions. Word has length 96 [2019-09-08 15:52:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:52:54,287 INFO L475 AbstractCegarLoop]: Abstraction has 4529 states and 5922 transitions. [2019-09-08 15:52:54,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 15:52:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 5922 transitions. [2019-09-08 15:52:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-08 15:52:54,292 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:52:54,292 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:52:54,292 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:52:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:52:54,293 INFO L82 PathProgramCache]: Analyzing trace with hash 358844260, now seen corresponding path program 1 times [2019-09-08 15:52:54,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:52:54,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:52:54,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:54,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:52:54,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:52:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:52:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-08 15:52:54,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:52:54,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 15:52:54,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 15:52:54,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 15:52:54,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 15:52:54,955 INFO L87 Difference]: Start difference. First operand 4529 states and 5922 transitions. Second operand 3 states. [2019-09-08 15:53:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:00,529 INFO L93 Difference]: Finished difference Result 8835 states and 11604 transitions. [2019-09-08 15:53:00,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 15:53:00,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-09-08 15:53:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:00,555 INFO L225 Difference]: With dead ends: 8835 [2019-09-08 15:53:00,556 INFO L226 Difference]: Without dead ends: 4524 [2019-09-08 15:53:00,580 INFO L628 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 [2019-09-08 15:53:00,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2019-09-08 15:53:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4519. [2019-09-08 15:53:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4519 states. [2019-09-08 15:53:00,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4519 states to 4519 states and 5829 transitions. [2019-09-08 15:53:00,783 INFO L78 Accepts]: Start accepts. Automaton has 4519 states and 5829 transitions. Word has length 139 [2019-09-08 15:53:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:00,784 INFO L475 AbstractCegarLoop]: Abstraction has 4519 states and 5829 transitions. [2019-09-08 15:53:00,784 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 15:53:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4519 states and 5829 transitions. [2019-09-08 15:53:00,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-08 15:53:00,790 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:00,791 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:00,791 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:00,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1727593498, now seen corresponding path program 1 times [2019-09-08 15:53:00,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:00,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:00,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:00,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:00,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 15:53:01,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:53:01,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 15:53:01,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 15:53:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 15:53:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:53:01,401 INFO L87 Difference]: Start difference. First operand 4519 states and 5829 transitions. Second operand 5 states. [2019-09-08 15:53:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:06,605 INFO L93 Difference]: Finished difference Result 9016 states and 11629 transitions. [2019-09-08 15:53:06,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 15:53:06,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2019-09-08 15:53:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:06,646 INFO L225 Difference]: With dead ends: 9016 [2019-09-08 15:53:06,646 INFO L226 Difference]: Without dead ends: 4527 [2019-09-08 15:53:06,667 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 15:53:06,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2019-09-08 15:53:06,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4527. [2019-09-08 15:53:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4527 states. [2019-09-08 15:53:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 5833 transitions. [2019-09-08 15:53:06,929 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 5833 transitions. Word has length 144 [2019-09-08 15:53:06,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:06,930 INFO L475 AbstractCegarLoop]: Abstraction has 4527 states and 5833 transitions. [2019-09-08 15:53:06,930 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 15:53:06,930 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 5833 transitions. [2019-09-08 15:53:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-08 15:53:06,935 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:06,935 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:06,935 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:06,936 INFO L82 PathProgramCache]: Analyzing trace with hash -651040089, now seen corresponding path program 1 times [2019-09-08 15:53:06,936 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:06,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:06,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:06,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:06,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 15:53:07,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:53:07,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 15:53:07,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 15:53:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 15:53:07,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 15:53:07,500 INFO L87 Difference]: Start difference. First operand 4527 states and 5833 transitions. Second operand 7 states. [2019-09-08 15:53:09,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:09,753 INFO L93 Difference]: Finished difference Result 8839 states and 11401 transitions. [2019-09-08 15:53:09,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 15:53:09,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-09-08 15:53:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:09,775 INFO L225 Difference]: With dead ends: 8839 [2019-09-08 15:53:09,775 INFO L226 Difference]: Without dead ends: 4527 [2019-09-08 15:53:09,793 INFO L628 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 [2019-09-08 15:53:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2019-09-08 15:53:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4527. [2019-09-08 15:53:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4527 states. [2019-09-08 15:53:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 5832 transitions. [2019-09-08 15:53:10,818 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 5832 transitions. Word has length 144 [2019-09-08 15:53:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:10,819 INFO L475 AbstractCegarLoop]: Abstraction has 4527 states and 5832 transitions. [2019-09-08 15:53:10,819 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 15:53:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 5832 transitions. [2019-09-08 15:53:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-08 15:53:10,824 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:10,824 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:10,824 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:10,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1559382750, now seen corresponding path program 1 times [2019-09-08 15:53:10,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:10,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:10,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:10,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:10,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 15:53:11,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 15:53:11,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 15:53:11,591 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 15:53:11,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 15:53:11,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 15:53:11,592 INFO L87 Difference]: Start difference. First operand 4527 states and 5832 transitions. Second operand 11 states. [2019-09-08 15:53:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:11,905 INFO L93 Difference]: Finished difference Result 9007 states and 11625 transitions. [2019-09-08 15:53:11,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 15:53:11,906 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 152 [2019-09-08 15:53:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:11,926 INFO L225 Difference]: With dead ends: 9007 [2019-09-08 15:53:11,927 INFO L226 Difference]: Without dead ends: 4549 [2019-09-08 15:53:11,940 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 15:53:11,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2019-09-08 15:53:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 4538. [2019-09-08 15:53:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4538 states. [2019-09-08 15:53:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 5848 transitions. [2019-09-08 15:53:12,186 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 5848 transitions. Word has length 152 [2019-09-08 15:53:12,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:12,187 INFO L475 AbstractCegarLoop]: Abstraction has 4538 states and 5848 transitions. [2019-09-08 15:53:12,187 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 15:53:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 5848 transitions. [2019-09-08 15:53:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-08 15:53:12,199 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:12,199 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:12,200 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:12,200 INFO L82 PathProgramCache]: Analyzing trace with hash -842843456, now seen corresponding path program 1 times [2019-09-08 15:53:12,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:12,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:12,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:12,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:12,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:53:13,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:53:13,212 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:53:13,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:17,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 6976 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 15:53:17,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:53:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:53:17,481 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:53:17,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-09-08 15:53:17,482 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 15:53:17,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 15:53:17,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:53:17,483 INFO L87 Difference]: Start difference. First operand 4538 states and 5848 transitions. Second operand 5 states. [2019-09-08 15:53:17,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:17,737 INFO L93 Difference]: Finished difference Result 9034 states and 11654 transitions. [2019-09-08 15:53:17,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 15:53:17,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2019-09-08 15:53:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:17,765 INFO L225 Difference]: With dead ends: 9034 [2019-09-08 15:53:17,766 INFO L226 Difference]: Without dead ends: 4541 [2019-09-08 15:53:17,789 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 15:53:17,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2019-09-08 15:53:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 4540. [2019-09-08 15:53:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4540 states. [2019-09-08 15:53:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 4540 states and 5850 transitions. [2019-09-08 15:53:18,080 INFO L78 Accepts]: Start accepts. Automaton has 4540 states and 5850 transitions. Word has length 157 [2019-09-08 15:53:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:18,082 INFO L475 AbstractCegarLoop]: Abstraction has 4540 states and 5850 transitions. [2019-09-08 15:53:18,082 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 15:53:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4540 states and 5850 transitions. [2019-09-08 15:53:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-08 15:53:18,088 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:18,089 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:18,089 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:18,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:18,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1688193340, now seen corresponding path program 2 times [2019-09-08 15:53:18,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:18,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:18,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:18,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:18,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:19,108 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:53:19,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:53:19,109 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:53:19,140 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 15:53:33,743 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 15:53:33,743 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:53:34,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 6982 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 15:53:34,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:53:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:53:34,347 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:53:34,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-09-08 15:53:34,348 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 15:53:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 15:53:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 15:53:34,349 INFO L87 Difference]: Start difference. First operand 4540 states and 5850 transitions. Second operand 6 states. [2019-09-08 15:53:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:34,545 INFO L93 Difference]: Finished difference Result 9036 states and 11656 transitions. [2019-09-08 15:53:34,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 15:53:34,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2019-09-08 15:53:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:34,575 INFO L225 Difference]: With dead ends: 9036 [2019-09-08 15:53:34,575 INFO L226 Difference]: Without dead ends: 4543 [2019-09-08 15:53:34,590 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 15:53:34,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2019-09-08 15:53:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4542. [2019-09-08 15:53:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4542 states. [2019-09-08 15:53:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 5852 transitions. [2019-09-08 15:53:34,986 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 5852 transitions. Word has length 159 [2019-09-08 15:53:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:34,986 INFO L475 AbstractCegarLoop]: Abstraction has 4542 states and 5852 transitions. [2019-09-08 15:53:34,986 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 15:53:34,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 5852 transitions. [2019-09-08 15:53:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-09-08 15:53:34,992 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:34,993 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:34,993 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1974354376, now seen corresponding path program 3 times [2019-09-08 15:53:34,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:34,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:34,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:34,997 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:53:34,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:53:35,769 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:53:35,769 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:53:35,813 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 15:53:50,422 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 15:53:50,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:53:51,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 6721 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 15:53:51,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:53:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-08 15:53:51,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 15:53:51,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2019-09-08 15:53:51,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 15:53:51,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 15:53:51,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-08 15:53:51,372 INFO L87 Difference]: Start difference. First operand 4542 states and 5852 transitions. Second operand 14 states. [2019-09-08 15:53:53,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:53,762 INFO L93 Difference]: Finished difference Result 9049 states and 11669 transitions. [2019-09-08 15:53:53,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 15:53:53,762 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2019-09-08 15:53:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:53,783 INFO L225 Difference]: With dead ends: 9049 [2019-09-08 15:53:53,784 INFO L226 Difference]: Without dead ends: 4545 [2019-09-08 15:53:53,798 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 15:53:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4545 states. [2019-09-08 15:53:53,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4545 to 4544. [2019-09-08 15:53:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4544 states. [2019-09-08 15:53:53,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 5853 transitions. [2019-09-08 15:53:53,989 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 5853 transitions. Word has length 161 [2019-09-08 15:53:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:53,990 INFO L475 AbstractCegarLoop]: Abstraction has 4544 states and 5853 transitions. [2019-09-08 15:53:53,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 15:53:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 5853 transitions. [2019-09-08 15:53:53,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-08 15:53:53,999 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:54,000 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:54,000 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:54,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:54,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1116106168, now seen corresponding path program 1 times [2019-09-08 15:53:54,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:54,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:54,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:54,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:53:54,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:53:55,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:53:55,206 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:53:55,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:53:58,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 7029 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 15:53:58,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:53:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:53:59,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:53:59,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-09-08 15:53:59,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 15:53:59,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 15:53:59,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 15:53:59,005 INFO L87 Difference]: Start difference. First operand 4544 states and 5853 transitions. Second operand 8 states. [2019-09-08 15:53:59,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:53:59,219 INFO L93 Difference]: Finished difference Result 9040 states and 11658 transitions. [2019-09-08 15:53:59,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 15:53:59,220 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2019-09-08 15:53:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:53:59,240 INFO L225 Difference]: With dead ends: 9040 [2019-09-08 15:53:59,240 INFO L226 Difference]: Without dead ends: 4547 [2019-09-08 15:53:59,259 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-09-08 15:53:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2019-09-08 15:53:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4546. [2019-09-08 15:53:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4546 states. [2019-09-08 15:53:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 5855 transitions. [2019-09-08 15:53:59,437 INFO L78 Accepts]: Start accepts. Automaton has 4546 states and 5855 transitions. Word has length 170 [2019-09-08 15:53:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:53:59,440 INFO L475 AbstractCegarLoop]: Abstraction has 4546 states and 5855 transitions. [2019-09-08 15:53:59,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 15:53:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 4546 states and 5855 transitions. [2019-09-08 15:53:59,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-09-08 15:53:59,447 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:53:59,447 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:53:59,447 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:53:59,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:53:59,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1280972852, now seen corresponding path program 2 times [2019-09-08 15:53:59,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:53:59,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:53:59,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:59,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:53:59,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:53:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:54:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:54:00,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:54:00,318 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:54:00,355 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 15:54:14,856 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 15:54:14,856 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:54:15,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 7035 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 15:54:15,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:54:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:54:15,633 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:54:15,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2019-09-08 15:54:15,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 15:54:15,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 15:54:15,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 15:54:15,637 INFO L87 Difference]: Start difference. First operand 4546 states and 5855 transitions. Second operand 9 states. [2019-09-08 15:54:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:54:15,863 INFO L93 Difference]: Finished difference Result 9042 states and 11660 transitions. [2019-09-08 15:54:15,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 15:54:15,864 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2019-09-08 15:54:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:54:15,884 INFO L225 Difference]: With dead ends: 9042 [2019-09-08 15:54:15,884 INFO L226 Difference]: Without dead ends: 4549 [2019-09-08 15:54:15,902 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-09-08 15:54:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2019-09-08 15:54:16,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 4548. [2019-09-08 15:54:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4548 states. [2019-09-08 15:54:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 5857 transitions. [2019-09-08 15:54:16,102 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 5857 transitions. Word has length 172 [2019-09-08 15:54:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:54:16,103 INFO L475 AbstractCegarLoop]: Abstraction has 4548 states and 5857 transitions. [2019-09-08 15:54:16,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 15:54:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 5857 transitions. [2019-09-08 15:54:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-08 15:54:16,109 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:54:16,110 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:54:16,110 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:54:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:54:16,110 INFO L82 PathProgramCache]: Analyzing trace with hash 804066224, now seen corresponding path program 3 times [2019-09-08 15:54:16,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:54:16,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:54:16,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:54:16,115 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:54:16,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:54:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:54:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:54:16,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:54:16,944 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:54:16,976 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 15:55:44,515 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-09-08 15:55:44,515 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:55:45,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 7041 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 15:55:45,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:55:45,530 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:55:45,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:55:45,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-09-08 15:55:45,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 15:55:45,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 15:55:45,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-09-08 15:55:45,719 INFO L87 Difference]: Start difference. First operand 4548 states and 5857 transitions. Second operand 10 states. [2019-09-08 15:55:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:55:45,939 INFO L93 Difference]: Finished difference Result 9044 states and 11662 transitions. [2019-09-08 15:55:45,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 15:55:45,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 174 [2019-09-08 15:55:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:55:45,960 INFO L225 Difference]: With dead ends: 9044 [2019-09-08 15:55:45,960 INFO L226 Difference]: Without dead ends: 4551 [2019-09-08 15:55:45,977 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-09-08 15:55:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2019-09-08 15:55:46,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4550. [2019-09-08 15:55:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4550 states. [2019-09-08 15:55:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 4550 states and 5859 transitions. [2019-09-08 15:55:46,270 INFO L78 Accepts]: Start accepts. Automaton has 4550 states and 5859 transitions. Word has length 174 [2019-09-08 15:55:46,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:55:46,270 INFO L475 AbstractCegarLoop]: Abstraction has 4550 states and 5859 transitions. [2019-09-08 15:55:46,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 15:55:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4550 states and 5859 transitions. [2019-09-08 15:55:46,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-08 15:55:46,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:55:46,279 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:55:46,279 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:55:46,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:55:46,280 INFO L82 PathProgramCache]: Analyzing trace with hash 2058297388, now seen corresponding path program 4 times [2019-09-08 15:55:46,280 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:55:46,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:55:46,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:55:46,286 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:55:46,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:55:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:55:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:55:47,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:55:47,064 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:55:47,091 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 15:55:50,929 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 15:55:50,929 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:55:51,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 7047 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-08 15:55:51,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:55:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:55:51,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:55:51,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2019-09-08 15:55:51,261 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 15:55:51,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 15:55:51,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-09-08 15:55:51,262 INFO L87 Difference]: Start difference. First operand 4550 states and 5859 transitions. Second operand 11 states. [2019-09-08 15:55:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:55:51,460 INFO L93 Difference]: Finished difference Result 9046 states and 11664 transitions. [2019-09-08 15:55:51,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 15:55:51,460 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2019-09-08 15:55:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:55:51,480 INFO L225 Difference]: With dead ends: 9046 [2019-09-08 15:55:51,480 INFO L226 Difference]: Without dead ends: 4553 [2019-09-08 15:55:51,493 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-09-08 15:55:51,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4553 states. [2019-09-08 15:55:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4553 to 4552. [2019-09-08 15:55:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4552 states. [2019-09-08 15:55:51,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 5861 transitions. [2019-09-08 15:55:51,660 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 5861 transitions. Word has length 176 [2019-09-08 15:55:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:55:51,661 INFO L475 AbstractCegarLoop]: Abstraction has 4552 states and 5861 transitions. [2019-09-08 15:55:51,661 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 15:55:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 5861 transitions. [2019-09-08 15:55:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-08 15:55:51,666 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:55:51,666 INFO L399 BasicCegarLoop]: trace histogram [8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:55:51,667 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:55:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:55:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash 488635816, now seen corresponding path program 5 times [2019-09-08 15:55:51,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:55:51,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:55:51,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:55:51,671 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:55:51,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:55:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:55:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:55:52,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:55:52,448 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:55:52,634 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 15:56:05,140 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2019-09-08 15:56:05,141 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:56:05,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 15:56:05,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:56:05,196 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 64 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:56:05,205 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:56:05,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2019-09-08 15:56:05,206 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 15:56:05,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 15:56:05,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 15:56:05,207 INFO L87 Difference]: Start difference. First operand 4552 states and 5861 transitions. Second operand 12 states. [2019-09-08 15:56:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:56:05,351 INFO L93 Difference]: Finished difference Result 9048 states and 11666 transitions. [2019-09-08 15:56:05,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 15:56:05,351 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 178 [2019-09-08 15:56:05,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:56:05,371 INFO L225 Difference]: With dead ends: 9048 [2019-09-08 15:56:05,371 INFO L226 Difference]: Without dead ends: 4555 [2019-09-08 15:56:05,386 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-09-08 15:56:05,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4555 states. [2019-09-08 15:56:05,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 4554. [2019-09-08 15:56:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4554 states. [2019-09-08 15:56:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 5863 transitions. [2019-09-08 15:56:05,541 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 5863 transitions. Word has length 178 [2019-09-08 15:56:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:56:05,542 INFO L475 AbstractCegarLoop]: Abstraction has 4554 states and 5863 transitions. [2019-09-08 15:56:05,542 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 15:56:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 5863 transitions. [2019-09-08 15:56:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-08 15:56:05,547 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:56:05,548 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:56:05,548 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:56:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:56:05,548 INFO L82 PathProgramCache]: Analyzing trace with hash -422613980, now seen corresponding path program 6 times [2019-09-08 15:56:05,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:56:05,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:56:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:56:05,552 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:56:05,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:56:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:56:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:56:06,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:56:06,281 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:56:06,311 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-09-08 15:58:10,980 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2019-09-08 15:58:10,981 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:58:11,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 7059 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-08 15:58:11,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:58:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:58:12,176 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:58:12,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2019-09-08 15:58:12,178 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 15:58:12,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 15:58:12,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 15:58:12,179 INFO L87 Difference]: Start difference. First operand 4554 states and 5863 transitions. Second operand 13 states. [2019-09-08 15:58:12,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:58:12,389 INFO L93 Difference]: Finished difference Result 9050 states and 11668 transitions. [2019-09-08 15:58:12,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 15:58:12,390 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 180 [2019-09-08 15:58:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:58:12,407 INFO L225 Difference]: With dead ends: 9050 [2019-09-08 15:58:12,407 INFO L226 Difference]: Without dead ends: 4557 [2019-09-08 15:58:12,421 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-09-08 15:58:12,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2019-09-08 15:58:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4556. [2019-09-08 15:58:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4556 states. [2019-09-08 15:58:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 5865 transitions. [2019-09-08 15:58:12,578 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 5865 transitions. Word has length 180 [2019-09-08 15:58:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:58:12,579 INFO L475 AbstractCegarLoop]: Abstraction has 4556 states and 5865 transitions. [2019-09-08 15:58:12,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 15:58:12,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 5865 transitions. [2019-09-08 15:58:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-08 15:58:12,585 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:58:12,586 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:58:12,586 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:58:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:58:12,587 INFO L82 PathProgramCache]: Analyzing trace with hash 39660448, now seen corresponding path program 7 times [2019-09-08 15:58:12,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:58:12,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:58:12,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:12,591 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:58:12,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:58:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 4 proven. 100 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:58:13,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:58:13,525 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:58:13,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:58:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:58:17,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 7065 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 15:58:17,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:58:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:58:17,196 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:58:17,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2019-09-08 15:58:17,197 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 15:58:17,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 15:58:17,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 15:58:17,198 INFO L87 Difference]: Start difference. First operand 4556 states and 5865 transitions. Second operand 14 states. [2019-09-08 15:58:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:58:17,373 INFO L93 Difference]: Finished difference Result 9052 states and 11670 transitions. [2019-09-08 15:58:17,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 15:58:17,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2019-09-08 15:58:17,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:58:17,385 INFO L225 Difference]: With dead ends: 9052 [2019-09-08 15:58:17,385 INFO L226 Difference]: Without dead ends: 4559 [2019-09-08 15:58:17,394 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-09-08 15:58:17,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4559 states. [2019-09-08 15:58:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4559 to 4558. [2019-09-08 15:58:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4558 states. [2019-09-08 15:58:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 5867 transitions. [2019-09-08 15:58:17,544 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 5867 transitions. Word has length 182 [2019-09-08 15:58:17,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:58:17,545 INFO L475 AbstractCegarLoop]: Abstraction has 4558 states and 5867 transitions. [2019-09-08 15:58:17,545 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 15:58:17,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 5867 transitions. [2019-09-08 15:58:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-08 15:58:17,550 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:58:17,551 INFO L399 BasicCegarLoop]: trace histogram [11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:58:17,551 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:58:17,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:58:17,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1903754268, now seen corresponding path program 8 times [2019-09-08 15:58:17,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:58:17,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:58:17,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:17,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 15:58:17,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:58:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:58:18,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:58:18,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:58:18,300 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 15:58:32,965 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 15:58:32,965 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 15:58:33,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 7071 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 15:58:33,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 15:58:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 15:58:33,667 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 15:58:33,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2019-09-08 15:58:33,668 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 15:58:33,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 15:58:33,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 15:58:33,669 INFO L87 Difference]: Start difference. First operand 4558 states and 5867 transitions. Second operand 15 states. [2019-09-08 15:58:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 15:58:33,826 INFO L93 Difference]: Finished difference Result 9054 states and 11672 transitions. [2019-09-08 15:58:33,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 15:58:33,829 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 184 [2019-09-08 15:58:33,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 15:58:33,840 INFO L225 Difference]: With dead ends: 9054 [2019-09-08 15:58:33,840 INFO L226 Difference]: Without dead ends: 4561 [2019-09-08 15:58:33,851 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-09-08 15:58:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2019-09-08 15:58:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 4560. [2019-09-08 15:58:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4560 states. [2019-09-08 15:58:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 5869 transitions. [2019-09-08 15:58:34,003 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 5869 transitions. Word has length 184 [2019-09-08 15:58:34,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 15:58:34,003 INFO L475 AbstractCegarLoop]: Abstraction has 4560 states and 5869 transitions. [2019-09-08 15:58:34,003 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 15:58:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 5869 transitions. [2019-09-08 15:58:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-08 15:58:34,010 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 15:58:34,010 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 15:58:34,011 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 15:58:34,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 15:58:34,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1998414440, now seen corresponding path program 9 times [2019-09-08 15:58:34,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 15:58:34,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 15:58:34,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:34,015 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 15:58:34,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 15:58:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 15:58:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 144 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 15:58:34,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 15:58:34,698 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 15:58:34,718 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 16:01:16,255 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2019-09-08 16:01:16,255 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:01:17,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 7077 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 16:01:17,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:01:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 2 proven. 144 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 16:01:17,272 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:01:17,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2019-09-08 16:01:17,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 16:01:17,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 16:01:17,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:01:17,274 INFO L87 Difference]: Start difference. First operand 4560 states and 5869 transitions. Second operand 16 states. [2019-09-08 16:01:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:01:17,430 INFO L93 Difference]: Finished difference Result 9056 states and 11674 transitions. [2019-09-08 16:01:17,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 16:01:17,430 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 186 [2019-09-08 16:01:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:01:17,443 INFO L225 Difference]: With dead ends: 9056 [2019-09-08 16:01:17,443 INFO L226 Difference]: Without dead ends: 4563 [2019-09-08 16:01:17,451 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-09-08 16:01:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2019-09-08 16:01:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 4562. [2019-09-08 16:01:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4562 states. [2019-09-08 16:01:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 5871 transitions. [2019-09-08 16:01:17,606 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 5871 transitions. Word has length 186 [2019-09-08 16:01:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:01:17,606 INFO L475 AbstractCegarLoop]: Abstraction has 4562 states and 5871 transitions. [2019-09-08 16:01:17,606 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 16:01:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 5871 transitions. [2019-09-08 16:01:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-08 16:01:17,611 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:01:17,612 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:01:17,612 INFO L418 AbstractCegarLoop]: === Iteration 24 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:01:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:01:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1818873876, now seen corresponding path program 10 times [2019-09-08 16:01:17,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:01:17,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:01:17,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:17,616 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:01:17,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:01:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 4 proven. 169 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 16:01:18,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:01:18,669 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:01:18,699 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-08 16:01:34,388 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 16:01:34,388 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:01:34,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 7083 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 16:01:34,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:01:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 2 proven. 169 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 16:01:34,695 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:01:34,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2019-09-08 16:01:34,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 16:01:34,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 16:01:34,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-09-08 16:01:34,696 INFO L87 Difference]: Start difference. First operand 4562 states and 5871 transitions. Second operand 17 states. [2019-09-08 16:01:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:01:34,869 INFO L93 Difference]: Finished difference Result 9058 states and 11676 transitions. [2019-09-08 16:01:34,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 16:01:34,870 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 188 [2019-09-08 16:01:34,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:01:34,880 INFO L225 Difference]: With dead ends: 9058 [2019-09-08 16:01:34,880 INFO L226 Difference]: Without dead ends: 4565 [2019-09-08 16:01:34,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-09-08 16:01:34,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2019-09-08 16:01:35,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 4564. [2019-09-08 16:01:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2019-09-08 16:01:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 5873 transitions. [2019-09-08 16:01:35,015 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 5873 transitions. Word has length 188 [2019-09-08 16:01:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:01:35,015 INFO L475 AbstractCegarLoop]: Abstraction has 4564 states and 5873 transitions. [2019-09-08 16:01:35,015 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 16:01:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 5873 transitions. [2019-09-08 16:01:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-09-08 16:01:35,018 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:01:35,018 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:01:35,019 INFO L418 AbstractCegarLoop]: === Iteration 25 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:01:35,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:01:35,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1964092528, now seen corresponding path program 11 times [2019-09-08 16:01:35,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:01:35,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:01:35,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:35,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:01:35,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:01:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 4 proven. 196 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 16:01:35,970 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:01:35,970 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:01:36,002 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-09-08 16:01:49,149 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2019-09-08 16:01:49,149 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:01:49,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 16:01:49,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:01:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 2 proven. 196 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 16:01:49,209 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:01:49,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2019-09-08 16:01:49,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 16:01:49,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 16:01:49,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-09-08 16:01:49,215 INFO L87 Difference]: Start difference. First operand 4564 states and 5873 transitions. Second operand 18 states. [2019-09-08 16:01:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:01:49,391 INFO L93 Difference]: Finished difference Result 9060 states and 11678 transitions. [2019-09-08 16:01:49,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-08 16:01:49,391 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 190 [2019-09-08 16:01:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:01:49,405 INFO L225 Difference]: With dead ends: 9060 [2019-09-08 16:01:49,406 INFO L226 Difference]: Without dead ends: 4567 [2019-09-08 16:01:49,417 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-09-08 16:01:49,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2019-09-08 16:01:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 4566. [2019-09-08 16:01:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4566 states. [2019-09-08 16:01:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 5875 transitions. [2019-09-08 16:01:49,698 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 5875 transitions. Word has length 190 [2019-09-08 16:01:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:01:49,698 INFO L475 AbstractCegarLoop]: Abstraction has 4566 states and 5875 transitions. [2019-09-08 16:01:49,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 16:01:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 5875 transitions. [2019-09-08 16:01:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-08 16:01:49,702 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:01:49,702 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:01:49,703 INFO L418 AbstractCegarLoop]: === Iteration 26 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:01:49,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:01:49,703 INFO L82 PathProgramCache]: Analyzing trace with hash 442492940, now seen corresponding path program 12 times [2019-09-08 16:01:49,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:01:49,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:01:49,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:49,706 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:01:49,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:01:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:01:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 4 proven. 225 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 16:01:50,412 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:01:50,413 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:01:50,435 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-09-08 16:05:08,435 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2019-09-08 16:05:08,435 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 16:05:09,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 7095 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 16:05:09,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:05:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 2 proven. 225 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 16:05:09,760 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:05:09,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2019-09-08 16:05:09,761 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 16:05:09,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 16:05:09,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 16:05:09,762 INFO L87 Difference]: Start difference. First operand 4566 states and 5875 transitions. Second operand 19 states. [2019-09-08 16:05:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:05:09,946 INFO L93 Difference]: Finished difference Result 9062 states and 11680 transitions. [2019-09-08 16:05:09,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 16:05:09,946 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-09-08 16:05:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:05:09,958 INFO L225 Difference]: With dead ends: 9062 [2019-09-08 16:05:09,958 INFO L226 Difference]: Without dead ends: 4569 [2019-09-08 16:05:09,969 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-09-08 16:05:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4569 states. [2019-09-08 16:05:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4569 to 4568. [2019-09-08 16:05:10,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4568 states. [2019-09-08 16:05:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 5877 transitions. [2019-09-08 16:05:10,108 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 5877 transitions. Word has length 192 [2019-09-08 16:05:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:05:10,108 INFO L475 AbstractCegarLoop]: Abstraction has 4568 states and 5877 transitions. [2019-09-08 16:05:10,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 16:05:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 5877 transitions. [2019-09-08 16:05:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-08 16:05:10,113 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:05:10,113 INFO L399 BasicCegarLoop]: trace histogram [16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:05:10,113 INFO L418 AbstractCegarLoop]: === Iteration 27 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:05:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:05:10,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1816244856, now seen corresponding path program 13 times [2019-09-08 16:05:10,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:05:10,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:05:10,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:05:10,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 16:05:10,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:05:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:05:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 4 proven. 256 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 16:05:10,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:05:10,823 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:05:10,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:05:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:05:14,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 7101 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 16:05:14,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 16:05:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 2 proven. 256 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 16:05:14,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 16:05:14,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2019-09-08 16:05:14,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 16:05:14,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 16:05:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 16:05:14,750 INFO L87 Difference]: Start difference. First operand 4568 states and 5877 transitions. Second operand 20 states. [2019-09-08 16:05:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 16:05:14,938 INFO L93 Difference]: Finished difference Result 9064 states and 11682 transitions. [2019-09-08 16:05:14,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 16:05:14,939 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 194 [2019-09-08 16:05:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 16:05:14,949 INFO L225 Difference]: With dead ends: 9064 [2019-09-08 16:05:14,949 INFO L226 Difference]: Without dead ends: 4571 [2019-09-08 16:05:14,958 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-09-08 16:05:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2019-09-08 16:05:15,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4570. [2019-09-08 16:05:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4570 states. [2019-09-08 16:05:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4570 states to 4570 states and 5879 transitions. [2019-09-08 16:05:15,076 INFO L78 Accepts]: Start accepts. Automaton has 4570 states and 5879 transitions. Word has length 194 [2019-09-08 16:05:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 16:05:15,077 INFO L475 AbstractCegarLoop]: Abstraction has 4570 states and 5879 transitions. [2019-09-08 16:05:15,077 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 16:05:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4570 states and 5879 transitions. [2019-09-08 16:05:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-09-08 16:05:15,081 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 16:05:15,081 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 16:05:15,081 INFO L418 AbstractCegarLoop]: === Iteration 28 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 16:05:15,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 16:05:15,082 INFO L82 PathProgramCache]: Analyzing trace with hash 790184964, now seen corresponding path program 14 times [2019-09-08 16:05:15,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 16:05:15,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 16:05:15,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:05:15,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 16:05:15,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 16:05:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 16:05:16,035 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 4 proven. 289 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 16:05:16,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 16:05:16,035 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 16:05:16,059 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1