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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:21:31,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:21:31,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:21:31,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:21:31,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:21:31,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:21:31,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:21:31,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:21:31,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:21:31,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:21:31,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:21:31,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:21:31,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:21:31,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:21:31,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:21:31,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:21:31,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:21:31,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:21:31,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:21:31,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:21:31,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:21:31,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:21:31,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:21:31,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:21:31,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:21:31,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:21:31,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:21:31,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:21:31,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:21:31,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:21:31,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:21:31,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:21:31,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:21:31,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:21:31,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:21:31,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:21:31,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:21:31,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:21:31,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:21:31,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:21:31,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:21:31,742 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 [2019-10-13 22:21:31,756 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:21:31,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:21:31,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:21:31,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:21:31,758 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:21:31,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:21:31,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:21:31,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:21:31,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:21:31,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:21:31,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:21:31,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:21:31,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:21:31,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:21:31,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:21:31,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:21:31,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:21:31,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:21:31,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:21:31,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:21:31,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:21:31,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:21:31,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:21:31,763 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 [2019-10-13 22:21:32,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:21:32,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:21:32,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:21:32,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:21:32,082 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:21:32,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2019-10-13 22:21:32,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1ae3d96/a64c29cc785743dcb754de4b47ea96b3/FLAGea1d55db4 [2019-10-13 22:21:32,932 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:21:32,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2019-10-13 22:21:32,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1ae3d96/a64c29cc785743dcb754de4b47ea96b3/FLAGea1d55db4 [2019-10-13 22:21:33,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1ae3d96/a64c29cc785743dcb754de4b47ea96b3 [2019-10-13 22:21:33,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:21:33,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:21:33,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:21:33,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:21:33,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:21:33,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:21:33" (1/1) ... [2019-10-13 22:21:33,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132b5e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:33, skipping insertion in model container [2019-10-13 22:21:33,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:21:33" (1/1) ... [2019-10-13 22:21:33,509 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:21:33,620 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:21:34,274 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3835] [2019-10-13 22:21:34,274 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3836-3837] [2019-10-13 22:21:35,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:21:35,493 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:21:35,608 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3835] [2019-10-13 22:21:35,608 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3836-3837] [2019-10-13 22:21:35,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:21:36,022 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:21:36,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36 WrapperNode [2019-10-13 22:21:36,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:21:36,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:21:36,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:21:36,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:21:36,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (1/1) ... [2019-10-13 22:21:36,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:21:36,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:21:36,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:21:36,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:21:36,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (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 [2019-10-13 22:21:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:21:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:21:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:21:36,410 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:21:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:21:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-10-13 22:21:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_4 [2019-10-13 22:21:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-10-13 22:21:36,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_7 [2019-10-13 22:21:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 22:21:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:21:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-13 22:21:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:21:36,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:21:36,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:21:36,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:21:36,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:21:36,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:21:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 22:21:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_set_power_state [2019-10-13 22:21:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_vsc_set_nmea [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_num_ports [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure is_blacklisted [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure is_himemory [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_interface [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_probe [2019-10-13 22:21:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_send_setup [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmget [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmset [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release_urb [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_outdat_callback [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write [2019-10-13 22:21:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_indat_callback [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_instat_callback [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write_room [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_chars_in_buffer [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_stop_rx_urbs [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_rx_urbs [2019-10-13 22:21:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_setup_urb [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_close [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_open [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_dtr_rts [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_startup [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release [2019-10-13 22:21:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_probe [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_remove [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_read_write_urbs [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_suspend [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_delayed_urbs [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_resume [2019-10-13 22:21:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_init [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_exit [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 22:21:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:21:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2019-10-13 22:21:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_25 [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 22:21:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:21:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-13 22:21:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2019-10-13 22:21:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2019-10-13 22:21:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-10-13 22:21:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register_drivers [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-10-13 22:21:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:21:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:21:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:21:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:21:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:21:36,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:21:36,434 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:21:36,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 22:21:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:21:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 22:21:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:21:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:21:36,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_4 [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:21:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_7 [2019-10-13 22:21:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 22:21:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 22:21:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:21:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:21:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-13 22:21:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:21:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:21:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 22:21:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:21:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:21:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:21:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:21:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:21:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:21:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:21:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:21:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:21:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:21:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:21:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2019-10-13 22:21:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2019-10-13 22:21:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:21:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2019-10-13 22:21:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:21:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_25 [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 22:21:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 22:21:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2019-10-13 22:21:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2019-10-13 22:21:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2019-10-13 22:21:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2019-10-13 22:21:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-10-13 22:21:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2019-10-13 22:21:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register_drivers [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2019-10-13 22:21:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_set_power_state [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_vsc_set_nmea [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_num_ports [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure is_blacklisted [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure is_himemory [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_interface [2019-10-13 22:21:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_probe [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_send_setup [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmget [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmset [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release_urb [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_outdat_callback [2019-10-13 22:21:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:21:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write [2019-10-13 22:21:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:21:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_indat_callback [2019-10-13 22:21:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_instat_callback [2019-10-13 22:21:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write_room [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_chars_in_buffer [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_stop_rx_urbs [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_rx_urbs [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_setup_urb [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_close [2019-10-13 22:21:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_open [2019-10-13 22:21:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_dtr_rts [2019-10-13 22:21:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_startup [2019-10-13 22:21:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release [2019-10-13 22:21:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_probe [2019-10-13 22:21:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_remove [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure stop_read_write_urbs [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_suspend [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_delayed_urbs [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_resume [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_init [2019-10-13 22:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_exit [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 22:21:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:21:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:21:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:21:37,490 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:21:52,202 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:21:52,202 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:21:52,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:21:52 BoogieIcfgContainer [2019-10-13 22:21:52,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:21:52,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:21:52,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:21:52,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:21:52,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:21:33" (1/3) ... [2019-10-13 22:21:52,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce1813a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:21:52, skipping insertion in model container [2019-10-13 22:21:52,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:21:36" (2/3) ... [2019-10-13 22:21:52,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce1813a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:21:52, skipping insertion in model container [2019-10-13 22:21:52,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:21:52" (3/3) ... [2019-10-13 22:21:52,211 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2019-10-13 22:21:52,221 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:21:52,230 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:21:52,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:21:52,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:21:52,273 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:21:52,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:21:52,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:21:52,273 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:21:52,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:21:52,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:21:52,274 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:21:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states. [2019-10-13 22:21:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 22:21:52,322 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:52,323 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:52,325 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:52,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:52,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2042604104, now seen corresponding path program 1 times [2019-10-13 22:21:52,341 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:52,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081428080] [2019-10-13 22:21:52,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:52,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:52,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 22:21:53,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081428080] [2019-10-13 22:21:53,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:53,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:53,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713280474] [2019-10-13 22:21:53,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:53,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:53,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:53,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:53,259 INFO L87 Difference]: Start difference. First operand 999 states. Second operand 3 states. [2019-10-13 22:21:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:54,187 INFO L93 Difference]: Finished difference Result 1926 states and 2621 transitions. [2019-10-13 22:21:54,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:54,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 22:21:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:54,228 INFO L225 Difference]: With dead ends: 1926 [2019-10-13 22:21:54,228 INFO L226 Difference]: Without dead ends: 961 [2019-10-13 22:21:54,246 INFO L600 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 [2019-10-13 22:21:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2019-10-13 22:21:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2019-10-13 22:21:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2019-10-13 22:21:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1287 transitions. [2019-10-13 22:21:54,479 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1287 transitions. Word has length 47 [2019-10-13 22:21:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:54,480 INFO L462 AbstractCegarLoop]: Abstraction has 961 states and 1287 transitions. [2019-10-13 22:21:54,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1287 transitions. [2019-10-13 22:21:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-13 22:21:54,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:54,495 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2019-10-13 22:21:54,495 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:54,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:54,496 INFO L82 PathProgramCache]: Analyzing trace with hash 991051564, now seen corresponding path program 1 times [2019-10-13 22:21:54,496 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:54,496 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401972761] [2019-10-13 22:21:54,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:54,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:54,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-13 22:21:55,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401972761] [2019-10-13 22:21:55,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:55,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:55,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596480967] [2019-10-13 22:21:55,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:55,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:55,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:55,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:55,011 INFO L87 Difference]: Start difference. First operand 961 states and 1287 transitions. Second operand 3 states. [2019-10-13 22:21:57,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:57,973 INFO L93 Difference]: Finished difference Result 2174 states and 2934 transitions. [2019-10-13 22:21:57,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:57,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-10-13 22:21:57,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:57,991 INFO L225 Difference]: With dead ends: 2174 [2019-10-13 22:21:57,991 INFO L226 Difference]: Without dead ends: 1240 [2019-10-13 22:21:57,999 INFO L600 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 [2019-10-13 22:21:58,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2019-10-13 22:21:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1237. [2019-10-13 22:21:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2019-10-13 22:21:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1608 transitions. [2019-10-13 22:21:58,098 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1608 transitions. Word has length 85 [2019-10-13 22:21:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:58,100 INFO L462 AbstractCegarLoop]: Abstraction has 1237 states and 1608 transitions. [2019-10-13 22:21:58,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:58,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1608 transitions. [2019-10-13 22:21:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 22:21:58,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:58,104 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:58,104 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:58,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:58,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1828834376, now seen corresponding path program 1 times [2019-10-13 22:21:58,114 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:58,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925184831] [2019-10-13 22:21:58,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:58,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:58,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-13 22:21:58,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925184831] [2019-10-13 22:21:58,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:58,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:21:58,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490976446] [2019-10-13 22:21:58,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:21:58,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:58,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:21:58,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:58,586 INFO L87 Difference]: Start difference. First operand 1237 states and 1608 transitions. Second operand 3 states. [2019-10-13 22:21:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:21:58,641 INFO L93 Difference]: Finished difference Result 1338 states and 1725 transitions. [2019-10-13 22:21:58,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:21:58,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2019-10-13 22:21:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:21:58,654 INFO L225 Difference]: With dead ends: 1338 [2019-10-13 22:21:58,655 INFO L226 Difference]: Without dead ends: 1335 [2019-10-13 22:21:58,656 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:21:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2019-10-13 22:21:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1327. [2019-10-13 22:21:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2019-10-13 22:21:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1709 transitions. [2019-10-13 22:21:58,721 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1709 transitions. Word has length 87 [2019-10-13 22:21:58,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:21:58,722 INFO L462 AbstractCegarLoop]: Abstraction has 1327 states and 1709 transitions. [2019-10-13 22:21:58,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:21:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1709 transitions. [2019-10-13 22:21:58,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 22:21:58,731 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:21:58,732 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:21:58,732 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:21:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:21:58,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1370442956, now seen corresponding path program 1 times [2019-10-13 22:21:58,733 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:21:58,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272054102] [2019-10-13 22:21:58,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:58,733 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:21:58,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:21:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:21:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-13 22:21:59,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272054102] [2019-10-13 22:21:59,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:21:59,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:21:59,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494625807] [2019-10-13 22:21:59,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:21:59,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:21:59,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:21:59,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:21:59,229 INFO L87 Difference]: Start difference. First operand 1327 states and 1709 transitions. Second operand 6 states. [2019-10-13 22:22:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:22:02,708 INFO L93 Difference]: Finished difference Result 2908 states and 3779 transitions. [2019-10-13 22:22:02,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:22:02,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2019-10-13 22:22:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:22:02,721 INFO L225 Difference]: With dead ends: 2908 [2019-10-13 22:22:02,721 INFO L226 Difference]: Without dead ends: 1608 [2019-10-13 22:22:02,727 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:22:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2019-10-13 22:22:02,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2019-10-13 22:22:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1608 states. [2019-10-13 22:22:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2033 transitions. [2019-10-13 22:22:02,805 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2033 transitions. Word has length 173 [2019-10-13 22:22:02,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:22:02,806 INFO L462 AbstractCegarLoop]: Abstraction has 1608 states and 2033 transitions. [2019-10-13 22:22:02,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:22:02,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2033 transitions. [2019-10-13 22:22:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 22:22:02,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:22:02,815 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2019-10-13 22:22:02,816 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:22:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:22:02,816 INFO L82 PathProgramCache]: Analyzing trace with hash 198507768, now seen corresponding path program 1 times [2019-10-13 22:22:02,816 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:22:02,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16233971] [2019-10-13 22:22:02,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:02,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:02,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:22:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:22:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-13 22:22:03,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16233971] [2019-10-13 22:22:03,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:22:03,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:22:03,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773811127] [2019-10-13 22:22:03,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:22:03,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:22:03,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:22:03,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:22:03,218 INFO L87 Difference]: Start difference. First operand 1608 states and 2033 transitions. Second operand 5 states. [2019-10-13 22:22:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:22:03,333 INFO L93 Difference]: Finished difference Result 3193 states and 4041 transitions. [2019-10-13 22:22:03,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:22:03,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2019-10-13 22:22:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:22:03,349 INFO L225 Difference]: With dead ends: 3193 [2019-10-13 22:22:03,349 INFO L226 Difference]: Without dead ends: 1612 [2019-10-13 22:22:03,360 INFO L600 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 [2019-10-13 22:22:03,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2019-10-13 22:22:03,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1612. [2019-10-13 22:22:03,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2019-10-13 22:22:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2037 transitions. [2019-10-13 22:22:03,454 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2037 transitions. Word has length 177 [2019-10-13 22:22:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:22:03,455 INFO L462 AbstractCegarLoop]: Abstraction has 1612 states and 2037 transitions. [2019-10-13 22:22:03,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:22:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2037 transitions. [2019-10-13 22:22:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 22:22:03,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:22:03,468 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2019-10-13 22:22:03,469 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:22:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:22:03,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1551003351, now seen corresponding path program 1 times [2019-10-13 22:22:03,470 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:22:03,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303021432] [2019-10-13 22:22:03,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:03,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:03,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:22:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:22:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 22:22:03,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303021432] [2019-10-13 22:22:03,991 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:22:03,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:22:03,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592787812] [2019-10-13 22:22:03,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:22:03,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:22:03,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:22:03,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:22:03,998 INFO L87 Difference]: Start difference. First operand 1612 states and 2037 transitions. Second operand 5 states. [2019-10-13 22:22:07,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:22:07,665 INFO L93 Difference]: Finished difference Result 3283 states and 4198 transitions. [2019-10-13 22:22:07,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:22:07,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2019-10-13 22:22:07,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:22:07,680 INFO L225 Difference]: With dead ends: 3283 [2019-10-13 22:22:07,681 INFO L226 Difference]: Without dead ends: 1698 [2019-10-13 22:22:07,690 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:22:07,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2019-10-13 22:22:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1612. [2019-10-13 22:22:07,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2019-10-13 22:22:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2037 transitions. [2019-10-13 22:22:07,800 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2037 transitions. Word has length 179 [2019-10-13 22:22:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:22:07,801 INFO L462 AbstractCegarLoop]: Abstraction has 1612 states and 2037 transitions. [2019-10-13 22:22:07,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:22:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2037 transitions. [2019-10-13 22:22:07,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 22:22:07,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:22:07,816 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:22:07,816 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:22:07,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:22:07,817 INFO L82 PathProgramCache]: Analyzing trace with hash -598886115, now seen corresponding path program 1 times [2019-10-13 22:22:07,817 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:22:07,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347392472] [2019-10-13 22:22:07,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:07,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:22:07,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:22:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:22:08,301 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 22:22:08,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347392472] [2019-10-13 22:22:08,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:22:08,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:22:08,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63418926] [2019-10-13 22:22:08,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:22:08,303 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:22:08,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:22:08,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:22:08,304 INFO L87 Difference]: Start difference. First operand 1612 states and 2037 transitions. Second operand 5 states.