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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:39:05,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:39:05,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:39:05,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:39:05,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:39:05,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:39:05,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:39:05,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:39:05,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:39:05,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:39:05,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:39:05,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:39:05,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:39:05,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:39:05,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:39:05,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:39:05,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:39:05,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:39:05,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:39:05,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:39:05,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:39:05,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:39:05,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:39:05,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:39:05,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:39:05,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:39:05,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:39:05,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:39:05,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:39:05,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:39:05,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:39:05,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:39:05,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:39:05,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:39:05,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:39:05,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:39:05,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:39:05,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:39:05,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:39:05,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:39:05,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:39:05,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 12:39:05,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:39:05,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:39:05,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:39:05,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:39:05,221 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:39:05,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:39:05,222 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:39:05,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:39:05,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:39:05,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:39:05,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:39:05,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:39:05,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:39:05,223 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:39:05,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:39:05,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:39:05,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:39:05,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:39:05,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:39:05,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:39:05,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:39:05,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:39:05,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:39:05,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:39:05,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:39:05,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:39:05,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:39:05,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:39:05,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 12:39:05,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:39:05,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:39:05,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:39:05,552 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:39:05,552 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:39:05,553 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-07 12:39:05,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86cafce1/abfb7cba61274fa198f23a8f1990438a/FLAG29fa19196 [2019-10-07 12:39:06,506 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:39:06,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-07 12:39:06,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86cafce1/abfb7cba61274fa198f23a8f1990438a/FLAG29fa19196 [2019-10-07 12:39:07,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f86cafce1/abfb7cba61274fa198f23a8f1990438a [2019-10-07 12:39:07,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:39:07,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:39:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:39:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:39:07,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:39:07,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:39:07" (1/1) ... [2019-10-07 12:39:07,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a14aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:07, skipping insertion in model container [2019-10-07 12:39:07,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:39:07" (1/1) ... [2019-10-07 12:39:07,053 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:39:07,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:39:09,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:39:09,675 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:39:10,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:39:10,670 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:39:10,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10 WrapperNode [2019-10-07 12:39:10,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:39:10,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:39:10,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:39:10,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:39:10,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:10,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:10,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:10,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:11,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:11,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:11,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... [2019-10-07 12:39:11,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:39:11,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:39:11,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:39:11,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:39:11,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:39:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:39:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:39:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-07 12:39:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 12:39:11,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2019-10-07 12:39:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 12:39:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 12:39:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-07 12:39:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-07 12:39:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 12:39:11,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 12:39:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 12:39:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 12:39:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 12:39:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 12:39:11,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 12:39:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 12:39:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 12:39:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-07 12:39:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 12:39:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-07 12:39:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2019-10-07 12:39:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2019-10-07 12:39:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-07 12:39:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-07 12:39:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 12:39:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 12:39:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-10-07 12:39:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-07 12:39:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2019-10-07 12:39:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-07 12:39:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-07 12:39:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-07 12:39:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2019-10-07 12:39:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2019-10-07 12:39:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-10-07 12:39:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-07 12:39:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-07 12:39:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-07 12:39:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_minor [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2019-10-07 12:39:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2019-10-07 12:39:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2019-10-07 12:39:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2019-10-07 12:39:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2019-10-07 12:39:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2019-10-07 12:39:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2019-10-07 12:39:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2019-10-07 12:39:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2019-10-07 12:39:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2019-10-07 12:39:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2019-10-07 12:39:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2019-10-07 12:39:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2019-10-07 12:39:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2019-10-07 12:39:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2019-10-07 12:39:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2019-10-07 12:39:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_serial_change [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_usage [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2019-10-07 12:39:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2019-10-07 12:39:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2019-10-07 12:39:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2019-10-07 12:39:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2019-10-07 12:39:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2019-10-07 12:39:11,326 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2019-10-07 12:39:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2019-10-07 12:39:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2019-10-07 12:39:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2019-10-07 12:39:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-07 12:39:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_4 [2019-10-07 12:39:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-07 12:39:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2019-10-07 12:39:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_2 [2019-10-07 12:39:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-07 12:39:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-07 12:39:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-07 12:39:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-07 12:39:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:39:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 12:39:11,330 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 12:39:11,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-07 12:39:11,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-07 12:39:11,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-07 12:39:11,331 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-07 12:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-07 12:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_15 [2019-10-07 12:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_16 [2019-10-07 12:39:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_17 [2019-10-07 12:39:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2019-10-07 12:39:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_19 [2019-10-07 12:39:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 12:39:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_25 [2019-10-07 12:39:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2019-10-07 12:39:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2019-10-07 12:39:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_30 [2019-10-07 12:39:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2019-10-07 12:39:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_32 [2019-10-07 12:39:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_33 [2019-10-07 12:39:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_34 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_35 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_36 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_37 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_38 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_39 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_40 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_41 [2019-10-07 12:39:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 12:39:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 12:39:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 12:39:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 12:39:11,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-07 12:39:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-07 12:39:11,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-07 12:39:11,462 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-07 12:39:11,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 12:39:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-07 12:39:11,465 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-10-07 12:39:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-10-07 12:39:11,467 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2019-10-07 12:39:11,468 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-07 12:39:11,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-07 12:39:11,470 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 12:39:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 12:39:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 12:39:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 12:39:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 12:39:11,471 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-07 12:39:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:39:11,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 12:39:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-07 12:39:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 12:39:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:39:11,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:39:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 12:39:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2019-10-07 12:39:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 12:39:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 12:39:11,477 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 12:39:11,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 12:39:11,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 12:39:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-07 12:39:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-07 12:39:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 12:39:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 12:39:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 12:39:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 12:39:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 12:39:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-07 12:39:11,485 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-07 12:39:11,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2019-10-07 12:39:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-07 12:39:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-07 12:39:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-07 12:39:11,489 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_15 [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_17 [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_16 [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_19 [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2019-10-07 12:39:11,490 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_38 [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-07 12:39:11,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-07 12:39:11,492 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_25 [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_4 [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2019-10-07 12:39:11,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_2 [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 12:39:11,494 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-10-07 12:39:11,495 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-10-07 12:39:11,496 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-07 12:39:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2019-10-07 12:39:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-10-07 12:39:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-10-07 12:39:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2019-10-07 12:39:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2019-10-07 12:39:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-07 12:39:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-10-07 12:39:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2019-10-07 12:39:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-07 12:39:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-10-07 12:39:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2019-10-07 12:39:11,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2019-10-07 12:39:11,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-07 12:39:11,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_40 [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_41 [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_34 [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_36 [2019-10-07 12:39:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_37 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_30 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_39 [2019-10-07 12:39:11,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_32 [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_33 [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_35 [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-07 12:39:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_minor [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2019-10-07 12:39:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2019-10-07 12:39:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2019-10-07 12:39:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2019-10-07 12:39:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2019-10-07 12:39:11,512 INFO L130 BoogieDeclarations]: Found specification of procedure wait_serial_change [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_usage [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2019-10-07 12:39:11,513 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 12:39:11,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 12:39:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-07 12:39:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-07 12:39:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-07 12:39:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-07 12:39:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:39:11,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:39:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 12:39:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 12:39:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 12:39:11,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 12:39:13,169 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 12:39:52,610 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:39:52,611 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:39:52,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:39:52 BoogieIcfgContainer [2019-10-07 12:39:52,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:39:52,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:39:52,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:39:52,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:39:52,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:39:07" (1/3) ... [2019-10-07 12:39:52,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3cc9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:39:52, skipping insertion in model container [2019-10-07 12:39:52,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:39:10" (2/3) ... [2019-10-07 12:39:52,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3cc9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:39:52, skipping insertion in model container [2019-10-07 12:39:52,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:39:52" (3/3) ... [2019-10-07 12:39:52,621 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-07 12:39:52,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:39:52,642 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:39:52,654 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:39:52,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:39:52,687 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:39:52,687 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:39:52,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:39:52,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:39:52,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:39:52,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:39:52,688 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:39:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states. [2019-10-07 12:39:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-07 12:39:52,788 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:39:52,790 INFO L385 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:39:52,793 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:39:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:39:52,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1464831818, now seen corresponding path program 1 times [2019-10-07 12:39:52,805 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:39:52,806 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:39:52,806 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:39:52,806 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:39:52,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:39:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:39:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2019-10-07 12:39:54,589 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:39:54,589 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:39:54,590 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:39:54,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:39:54,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:39:54,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:39:54,615 INFO L87 Difference]: Start difference. First operand 1736 states. Second operand 3 states. [2019-10-07 12:39:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:39:55,947 INFO L93 Difference]: Finished difference Result 4067 states and 5383 transitions. [2019-10-07 12:39:55,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:39:55,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-07 12:39:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:39:56,002 INFO L225 Difference]: With dead ends: 4067 [2019-10-07 12:39:56,002 INFO L226 Difference]: Without dead ends: 2469 [2019-10-07 12:39:56,019 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:39:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2019-10-07 12:39:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2460. [2019-10-07 12:39:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2019-10-07 12:39:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3212 transitions. [2019-10-07 12:39:56,372 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3212 transitions. Word has length 231 [2019-10-07 12:39:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:39:56,377 INFO L462 AbstractCegarLoop]: Abstraction has 2460 states and 3212 transitions. [2019-10-07 12:39:56,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:39:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3212 transitions. [2019-10-07 12:39:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-07 12:39:56,389 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:39:56,390 INFO L385 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:39:56,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:39:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:39:56,390 INFO L82 PathProgramCache]: Analyzing trace with hash -568187217, now seen corresponding path program 1 times [2019-10-07 12:39:56,391 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:39:56,391 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:39:56,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:39:56,391 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:39:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:39:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:39:58,409 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2019-10-07 12:39:58,410 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:39:58,410 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:39:58,410 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:39:58,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:39:58,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:39:58,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:39:58,414 INFO L87 Difference]: Start difference. First operand 2460 states and 3212 transitions. Second operand 3 states. [2019-10-07 12:40:00,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:00,005 INFO L93 Difference]: Finished difference Result 7000 states and 9111 transitions. [2019-10-07 12:40:00,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:40:00,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-07 12:40:00,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:00,040 INFO L225 Difference]: With dead ends: 7000 [2019-10-07 12:40:00,040 INFO L226 Difference]: Without dead ends: 4600 [2019-10-07 12:40:00,058 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2019-10-07 12:40:00,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4595. [2019-10-07 12:40:00,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4595 states. [2019-10-07 12:40:00,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4595 states to 4595 states and 5975 transitions. [2019-10-07 12:40:00,337 INFO L78 Accepts]: Start accepts. Automaton has 4595 states and 5975 transitions. Word has length 233 [2019-10-07 12:40:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:00,339 INFO L462 AbstractCegarLoop]: Abstraction has 4595 states and 5975 transitions. [2019-10-07 12:40:00,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:40:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4595 states and 5975 transitions. [2019-10-07 12:40:00,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-07 12:40:00,346 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:00,347 INFO L385 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:00,347 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:00,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:00,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2017288369, now seen corresponding path program 1 times [2019-10-07 12:40:00,348 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:00,348 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:00,349 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:00,349 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2019-10-07 12:40:01,243 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:01,244 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:01,244 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:40:01,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:40:01,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:40:01,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:01,246 INFO L87 Difference]: Start difference. First operand 4595 states and 5975 transitions. Second operand 3 states. [2019-10-07 12:40:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:02,781 INFO L93 Difference]: Finished difference Result 11592 states and 15039 transitions. [2019-10-07 12:40:02,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:40:02,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-07 12:40:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:02,835 INFO L225 Difference]: With dead ends: 11592 [2019-10-07 12:40:02,835 INFO L226 Difference]: Without dead ends: 7057 [2019-10-07 12:40:02,862 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7057 states. [2019-10-07 12:40:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7057 to 7054. [2019-10-07 12:40:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7054 states. [2019-10-07 12:40:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7054 states to 7054 states and 9140 transitions. [2019-10-07 12:40:03,462 INFO L78 Accepts]: Start accepts. Automaton has 7054 states and 9140 transitions. Word has length 240 [2019-10-07 12:40:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:03,464 INFO L462 AbstractCegarLoop]: Abstraction has 7054 states and 9140 transitions. [2019-10-07 12:40:03,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:40:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7054 states and 9140 transitions. [2019-10-07 12:40:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-07 12:40:03,478 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:03,479 INFO L385 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:03,479 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1206035948, now seen corresponding path program 1 times [2019-10-07 12:40:03,481 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:03,481 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:03,481 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:03,481 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2019-10-07 12:40:04,503 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:04,503 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:04,503 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:40:04,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:40:04,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:40:04,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:04,505 INFO L87 Difference]: Start difference. First operand 7054 states and 9140 transitions. Second operand 3 states. [2019-10-07 12:40:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:04,662 INFO L93 Difference]: Finished difference Result 7223 states and 9310 transitions. [2019-10-07 12:40:04,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:40:04,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-10-07 12:40:04,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:04,707 INFO L225 Difference]: With dead ends: 7223 [2019-10-07 12:40:04,707 INFO L226 Difference]: Without dead ends: 7220 [2019-10-07 12:40:04,713 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2019-10-07 12:40:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 7220. [2019-10-07 12:40:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7220 states. [2019-10-07 12:40:05,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7220 states to 7220 states and 9301 transitions. [2019-10-07 12:40:05,072 INFO L78 Accepts]: Start accepts. Automaton has 7220 states and 9301 transitions. Word has length 297 [2019-10-07 12:40:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:05,074 INFO L462 AbstractCegarLoop]: Abstraction has 7220 states and 9301 transitions. [2019-10-07 12:40:05,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:40:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7220 states and 9301 transitions. [2019-10-07 12:40:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2019-10-07 12:40:05,086 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:05,087 INFO L385 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:05,087 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:05,088 INFO L82 PathProgramCache]: Analyzing trace with hash 208122580, now seen corresponding path program 1 times [2019-10-07 12:40:05,088 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:05,088 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:05,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:05,088 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2019-10-07 12:40:06,338 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:06,338 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:06,339 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:40:06,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:40:06,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:40:06,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:06,341 INFO L87 Difference]: Start difference. First operand 7220 states and 9301 transitions. Second operand 3 states. [2019-10-07 12:40:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:10,563 INFO L93 Difference]: Finished difference Result 18472 states and 23797 transitions. [2019-10-07 12:40:10,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:40:10,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2019-10-07 12:40:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:10,627 INFO L225 Difference]: With dead ends: 18472 [2019-10-07 12:40:10,627 INFO L226 Difference]: Without dead ends: 11321 [2019-10-07 12:40:10,655 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:10,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2019-10-07 12:40:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 11318. [2019-10-07 12:40:11,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11318 states. [2019-10-07 12:40:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11318 states to 11318 states and 14472 transitions. [2019-10-07 12:40:11,131 INFO L78 Accepts]: Start accepts. Automaton has 11318 states and 14472 transitions. Word has length 304 [2019-10-07 12:40:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:11,132 INFO L462 AbstractCegarLoop]: Abstraction has 11318 states and 14472 transitions. [2019-10-07 12:40:11,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:40:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 11318 states and 14472 transitions. [2019-10-07 12:40:11,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-10-07 12:40:11,145 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:11,145 INFO L385 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:11,146 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:11,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1006350839, now seen corresponding path program 1 times [2019-10-07 12:40:11,146 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:11,147 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:11,147 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:11,147 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2019-10-07 12:40:12,302 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:12,303 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:12,303 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:40:12,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:40:12,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:40:12,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:40:12,307 INFO L87 Difference]: Start difference. First operand 11318 states and 14472 transitions. Second operand 5 states. [2019-10-07 12:40:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:14,142 INFO L93 Difference]: Finished difference Result 22591 states and 28884 transitions. [2019-10-07 12:40:14,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 12:40:14,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2019-10-07 12:40:14,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:14,208 INFO L225 Difference]: With dead ends: 22591 [2019-10-07 12:40:14,208 INFO L226 Difference]: Without dead ends: 11342 [2019-10-07 12:40:14,248 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-07 12:40:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2019-10-07 12:40:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 11294. [2019-10-07 12:40:14,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11294 states. [2019-10-07 12:40:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11294 states to 11294 states and 14436 transitions. [2019-10-07 12:40:14,875 INFO L78 Accepts]: Start accepts. Automaton has 11294 states and 14436 transitions. Word has length 313 [2019-10-07 12:40:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:14,876 INFO L462 AbstractCegarLoop]: Abstraction has 11294 states and 14436 transitions. [2019-10-07 12:40:14,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:40:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11294 states and 14436 transitions. [2019-10-07 12:40:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2019-10-07 12:40:14,907 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:14,908 INFO L385 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:14,908 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:14,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:14,909 INFO L82 PathProgramCache]: Analyzing trace with hash 477707537, now seen corresponding path program 1 times [2019-10-07 12:40:14,909 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:14,909 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:14,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:14,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2019-10-07 12:40:15,741 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:15,742 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:15,742 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 12:40:15,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 12:40:15,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 12:40:15,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:15,743 INFO L87 Difference]: Start difference. First operand 11294 states and 14436 transitions. Second operand 3 states. [2019-10-07 12:40:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:20,033 INFO L93 Difference]: Finished difference Result 26350 states and 33593 transitions. [2019-10-07 12:40:20,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 12:40:20,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2019-10-07 12:40:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:20,101 INFO L225 Difference]: With dead ends: 26350 [2019-10-07 12:40:20,101 INFO L226 Difference]: Without dead ends: 15125 [2019-10-07 12:40:20,143 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 12:40:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15125 states. [2019-10-07 12:40:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15125 to 15086. [2019-10-07 12:40:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15086 states. [2019-10-07 12:40:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15086 states to 15086 states and 19161 transitions. [2019-10-07 12:40:20,734 INFO L78 Accepts]: Start accepts. Automaton has 15086 states and 19161 transitions. Word has length 337 [2019-10-07 12:40:20,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:20,735 INFO L462 AbstractCegarLoop]: Abstraction has 15086 states and 19161 transitions. [2019-10-07 12:40:20,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 12:40:20,735 INFO L276 IsEmpty]: Start isEmpty. Operand 15086 states and 19161 transitions. [2019-10-07 12:40:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-07 12:40:20,759 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:20,759 INFO L385 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:20,760 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:20,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:20,760 INFO L82 PathProgramCache]: Analyzing trace with hash -982294202, now seen corresponding path program 1 times [2019-10-07 12:40:20,760 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:20,761 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:20,761 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:20,761 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2019-10-07 12:40:21,949 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:21,950 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:40:21,950 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:40:21,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:40:21,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:40:21,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:40:21,951 INFO L87 Difference]: Start difference. First operand 15086 states and 19161 transitions. Second operand 5 states. [2019-10-07 12:40:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:26,172 INFO L93 Difference]: Finished difference Result 30151 states and 38280 transitions. [2019-10-07 12:40:26,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 12:40:26,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 330 [2019-10-07 12:40:26,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:26,242 INFO L225 Difference]: With dead ends: 30151 [2019-10-07 12:40:26,242 INFO L226 Difference]: Without dead ends: 15086 [2019-10-07 12:40:26,292 INFO L606 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 [2019-10-07 12:40:26,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15086 states. [2019-10-07 12:40:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15086 to 15086. [2019-10-07 12:40:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15086 states. [2019-10-07 12:40:26,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15086 states to 15086 states and 19143 transitions. [2019-10-07 12:40:26,872 INFO L78 Accepts]: Start accepts. Automaton has 15086 states and 19143 transitions. Word has length 330 [2019-10-07 12:40:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:26,873 INFO L462 AbstractCegarLoop]: Abstraction has 15086 states and 19143 transitions. [2019-10-07 12:40:26,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:40:26,873 INFO L276 IsEmpty]: Start isEmpty. Operand 15086 states and 19143 transitions. [2019-10-07 12:40:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2019-10-07 12:40:26,900 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:26,900 INFO L385 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:26,900 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:26,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1528446987, now seen corresponding path program 1 times [2019-10-07 12:40:26,901 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:26,901 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:26,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:26,902 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:26,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:33,757 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 898 trivial. 0 not checked. [2019-10-07 12:40:33,757 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:33,757 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:40:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:40:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:36,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 9121 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-07 12:40:36,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:40:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2019-10-07 12:40:36,961 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:40:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2019-10-07 12:40:37,444 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:40:37,444 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 10 [2019-10-07 12:40:37,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 12:40:37,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 12:40:37,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 12:40:37,446 INFO L87 Difference]: Start difference. First operand 15086 states and 19143 transitions. Second operand 6 states. [2019-10-07 12:40:41,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:41,318 INFO L93 Difference]: Finished difference Result 30057 states and 38160 transitions. [2019-10-07 12:40:41,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:40:41,319 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 342 [2019-10-07 12:40:41,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:41,410 INFO L225 Difference]: With dead ends: 30057 [2019-10-07 12:40:41,411 INFO L226 Difference]: Without dead ends: 14884 [2019-10-07 12:40:41,463 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-07 12:40:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14884 states. [2019-10-07 12:40:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14884 to 14764. [2019-10-07 12:40:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2019-10-07 12:40:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 18789 transitions. [2019-10-07 12:40:42,213 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 18789 transitions. Word has length 342 [2019-10-07 12:40:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:40:42,214 INFO L462 AbstractCegarLoop]: Abstraction has 14764 states and 18789 transitions. [2019-10-07 12:40:42,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 12:40:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 18789 transitions. [2019-10-07 12:40:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2019-10-07 12:40:42,235 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:40:42,235 INFO L385 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:40:42,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:40:42,451 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:40:42,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:40:42,452 INFO L82 PathProgramCache]: Analyzing trace with hash -780074910, now seen corresponding path program 1 times [2019-10-07 12:40:42,452 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:40:42,452 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:42,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:42,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:40:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:40:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2019-10-07 12:40:44,449 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:40:44,449 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:40:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:40:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:40:47,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 9396 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-07 12:40:47,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 12:40:47,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 12:40:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2019-10-07 12:40:47,894 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 12:40:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1025 trivial. 0 not checked. [2019-10-07 12:40:48,308 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 12:40:48,308 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 3] imperfect sequences [4] total 7 [2019-10-07 12:40:48,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 12:40:48,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 12:40:48,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-10-07 12:40:48,311 INFO L87 Difference]: Start difference. First operand 14764 states and 18789 transitions. Second operand 6 states. [2019-10-07 12:40:59,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:40:59,636 INFO L93 Difference]: Finished difference Result 37417 states and 47556 transitions. [2019-10-07 12:40:59,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 12:40:59,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 365 [2019-10-07 12:40:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:40:59,731 INFO L225 Difference]: With dead ends: 37417 [2019-10-07 12:40:59,731 INFO L226 Difference]: Without dead ends: 22722 [2019-10-07 12:40:59,773 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-10-07 12:40:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22722 states. [2019-10-07 12:41:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22722 to 22497. [2019-10-07 12:41:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22497 states. [2019-10-07 12:41:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22497 states to 22497 states and 28561 transitions. [2019-10-07 12:41:00,645 INFO L78 Accepts]: Start accepts. Automaton has 22497 states and 28561 transitions. Word has length 365 [2019-10-07 12:41:00,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:41:00,647 INFO L462 AbstractCegarLoop]: Abstraction has 22497 states and 28561 transitions. [2019-10-07 12:41:00,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 12:41:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 22497 states and 28561 transitions. [2019-10-07 12:41:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2019-10-07 12:41:00,692 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:41:00,693 INFO L385 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:41:00,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 12:41:00,908 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:41:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:41:00,909 INFO L82 PathProgramCache]: Analyzing trace with hash 577353913, now seen corresponding path program 1 times [2019-10-07 12:41:00,909 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:41:00,909 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:41:00,910 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:41:00,911 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:41:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:41:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:41:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1029 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2019-10-07 12:41:08,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:41:08,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 12:41:08,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true