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--tty--n_r3964.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:54:58,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:54:58,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:54:58,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:54:58,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:54:58,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:54:58,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:54:58,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:54:58,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:54:58,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:54:58,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:54:58,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:54:58,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:54:58,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:54:58,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:54:58,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:54:58,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:54:58,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:54:58,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:54:58,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:54:58,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:54:58,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:54:58,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:54:58,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:54:58,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:54:58,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:54:58,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:54:58,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:54:58,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:54:58,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:54:58,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:54:58,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:54:58,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:54:58,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:54:58,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:54:58,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:54:58,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:54:58,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:54:58,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:54:58,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:54:58,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:54:58,641 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 [2019-10-15 02:54:58,655 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:54:58,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:54:58,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:54:58,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:54:58,657 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:54:58,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:54:58,658 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:54:58,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:54:58,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:54:58,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:54:58,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:54:58,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:54:58,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:54:58,659 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:54:58,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:54:58,660 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:54:58,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:54:58,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:54:58,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:54:58,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:54:58,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:54:58,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:54:58,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:54:58,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:54:58,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:54:58,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:54:58,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:54:58,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:54:58,662 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 [2019-10-15 02:54:58,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:54:58,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:54:58,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:54:58,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:54:58,992 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:54:58,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-15 02:54:59,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbab98f9/2f5a4bb582a64ecda9b023a5cf41e3b3/FLAGa02519c08 [2019-10-15 02:54:59,872 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:54:59,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-15 02:54:59,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbab98f9/2f5a4bb582a64ecda9b023a5cf41e3b3/FLAGa02519c08 [2019-10-15 02:54:59,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbab98f9/2f5a4bb582a64ecda9b023a5cf41e3b3 [2019-10-15 02:54:59,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:54:59,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:54:59,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:54:59,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:54:59,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:54:59,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:54:59" (1/1) ... [2019-10-15 02:54:59,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c73edbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:54:59, skipping insertion in model container [2019-10-15 02:54:59,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:54:59" (1/1) ... [2019-10-15 02:54:59,956 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:55:00,062 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:55:01,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:55:01,513 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:55:01,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:55:01,912 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:55:01,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01 WrapperNode [2019-10-15 02:55:01,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:55:01,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:55:01,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:55:01,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:55:01,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:01,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (1/1) ... [2019-10-15 02:55:02,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:55:02,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:55:02,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:55:02,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:55:02,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (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 [2019-10-15 02:55:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:55:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:55:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:55:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:55:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:55:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:55:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-15 02:55:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-15 02:55:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:55:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:55:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:55:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:55:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:55:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 02:55:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:55:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-15 02:55:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:55:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-15 02:55:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_block [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_exit [2019-10-15 02:55:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_init [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure add_tx_queue [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure add_rx_queue [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_rx_queue [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2019-10-15 02:55:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_block [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure receive_char [2019-10-15 02:55:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure receive_error [2019-10-15 02:55:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure on_timeout [2019-10-15 02:55:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2019-10-15 02:55:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_signals [2019-10-15 02:55:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure read_telegram [2019-10-15 02:55:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_open [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_read [2019-10-15 02:55:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_write [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_receive_buf [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-10-15 02:55:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-15 02:55:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-15 02:55:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-10-15 02:55:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-15 02:55:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-10-15 02:55:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_23 [2019-10-15 02:55:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_24 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_25 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_26 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_27 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_28 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_29 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_30 [2019-10-15 02:55:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_31 [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_32 [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_33 [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-15 02:55:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-15 02:55:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-15 02:55:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-15 02:55:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-15 02:55:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-15 02:55:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:55:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-15 02:55:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-15 02:55:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:55:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-15 02:55:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-15 02:55:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_pid [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:55:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_put_char [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2019-10-15 02:55:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_write_room [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:55:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:55:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-15 02:55:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:55:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-15 02:55:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:55:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 02:55:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:55:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:55:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:55:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:55:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 02:55:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_23 [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_24 [2019-10-15 02:55:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_25 [2019-10-15 02:55:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_26 [2019-10-15 02:55:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_28 [2019-10-15 02:55:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_29 [2019-10-15 02:55:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_30 [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_31 [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_32 [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_27 [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_33 [2019-10-15 02:55:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2019-10-15 02:55:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2019-10-15 02:55:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-15 02:55:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2019-10-15 02:55:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:55:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure kill_pid [2019-10-15 02:55:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:55:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-10-15 02:55:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:55:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-15 02:55:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:55:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure tty_put_char [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure tty_write_room [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-15 02:55:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure add_tx_queue [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_block [2019-10-15 02:55:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure receive_char [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure receive_error [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure on_timeout [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure enable_signals [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure read_telegram [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2019-10-15 02:55:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_open [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_read [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_write [2019-10-15 02:55:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_receive_buf [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure dump_block [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:55:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_exit [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_init [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure add_rx_queue [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_rx_queue [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2019-10-15 02:55:02,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:55:02,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-15 02:55:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:55:02,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:55:02,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:55:03,043 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:55:12,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:55:12,987 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:55:12,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:12 BoogieIcfgContainer [2019-10-15 02:55:12,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:55:12,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:55:12,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:55:12,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:55:12,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:54:59" (1/3) ... [2019-10-15 02:55:12,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e070c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:12, skipping insertion in model container [2019-10-15 02:55:12,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:01" (2/3) ... [2019-10-15 02:55:12,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538e070c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:12, skipping insertion in model container [2019-10-15 02:55:12,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:12" (3/3) ... [2019-10-15 02:55:12,997 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-15 02:55:13,010 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:55:13,020 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:55:13,032 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:55:13,067 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:55:13,068 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:55:13,068 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:55:13,068 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:55:13,068 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:55:13,068 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:55:13,068 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:55:13,068 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:55:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states. [2019-10-15 02:55:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 02:55:13,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:13,126 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:13,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:13,136 INFO L82 PathProgramCache]: Analyzing trace with hash 120840219, now seen corresponding path program 1 times [2019-10-15 02:55:13,146 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:13,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774773411] [2019-10-15 02:55:13,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:13,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:13,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:55:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-10-15 02:55:13,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774773411] [2019-10-15 02:55:13,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:55:13,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:55:13,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483319493] [2019-10-15 02:55:13,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:55:13,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:55:13,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:55:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:55:13,987 INFO L87 Difference]: Start difference. First operand 814 states. Second operand 3 states. [2019-10-15 02:55:14,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:55:14,314 INFO L93 Difference]: Finished difference Result 1851 states and 2554 transitions. [2019-10-15 02:55:14,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:55:14,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-15 02:55:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:55:14,371 INFO L225 Difference]: With dead ends: 1851 [2019-10-15 02:55:14,372 INFO L226 Difference]: Without dead ends: 1055 [2019-10-15 02:55:14,386 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 [2019-10-15 02:55:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-10-15 02:55:14,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1052. [2019-10-15 02:55:14,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-10-15 02:55:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1420 transitions. [2019-10-15 02:55:14,629 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1420 transitions. Word has length 122 [2019-10-15 02:55:14,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:55:14,630 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1420 transitions. [2019-10-15 02:55:14,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:55:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1420 transitions. [2019-10-15 02:55:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 02:55:14,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:14,650 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:14,650 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:14,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:14,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1428616480, now seen corresponding path program 1 times [2019-10-15 02:55:14,651 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:14,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423360080] [2019-10-15 02:55:14,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:14,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:14,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:55:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-10-15 02:55:14,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423360080] [2019-10-15 02:55:14,976 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:55:14,976 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:55:14,976 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201806589] [2019-10-15 02:55:14,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:55:14,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:55:14,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:55:14,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:14,981 INFO L87 Difference]: Start difference. First operand 1052 states and 1420 transitions. Second operand 5 states. [2019-10-15 02:55:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:55:17,286 INFO L93 Difference]: Finished difference Result 4059 states and 5617 transitions. [2019-10-15 02:55:17,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:55:17,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2019-10-15 02:55:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:55:17,316 INFO L225 Difference]: With dead ends: 4059 [2019-10-15 02:55:17,316 INFO L226 Difference]: Without dead ends: 3054 [2019-10-15 02:55:17,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2019-10-15 02:55:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3038. [2019-10-15 02:55:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3038 states. [2019-10-15 02:55:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4224 transitions. [2019-10-15 02:55:17,509 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4224 transitions. Word has length 136 [2019-10-15 02:55:17,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:55:17,510 INFO L462 AbstractCegarLoop]: Abstraction has 3038 states and 4224 transitions. [2019-10-15 02:55:17,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:55:17,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4224 transitions. [2019-10-15 02:55:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 02:55:17,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:17,513 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:17,513 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 561053028, now seen corresponding path program 1 times [2019-10-15 02:55:17,514 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:17,514 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987651423] [2019-10-15 02:55:17,514 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:17,515 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:17,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:55:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-10-15 02:55:17,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987651423] [2019-10-15 02:55:17,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:55:17,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:55:17,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834952163] [2019-10-15 02:55:17,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:55:17,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:55:17,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:55:17,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:17,695 INFO L87 Difference]: Start difference. First operand 3038 states and 4224 transitions. Second operand 5 states. [2019-10-15 02:55:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:55:20,462 INFO L93 Difference]: Finished difference Result 11995 states and 17249 transitions. [2019-10-15 02:55:20,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:55:20,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2019-10-15 02:55:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:55:20,551 INFO L225 Difference]: With dead ends: 11995 [2019-10-15 02:55:20,551 INFO L226 Difference]: Without dead ends: 9004 [2019-10-15 02:55:20,571 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:20,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9004 states. [2019-10-15 02:55:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9004 to 8988. [2019-10-15 02:55:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8988 states. [2019-10-15 02:55:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 13026 transitions. [2019-10-15 02:55:21,323 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 13026 transitions. Word has length 137 [2019-10-15 02:55:21,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:55:21,324 INFO L462 AbstractCegarLoop]: Abstraction has 8988 states and 13026 transitions. [2019-10-15 02:55:21,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:55:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 13026 transitions. [2019-10-15 02:55:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-15 02:55:21,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:21,328 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:21,329 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:21,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1614972120, now seen corresponding path program 1 times [2019-10-15 02:55:21,329 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:21,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680304288] [2019-10-15 02:55:21,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:21,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:21,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:55:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-10-15 02:55:21,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680304288] [2019-10-15 02:55:21,499 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:55:21,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:55:21,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234247051] [2019-10-15 02:55:21,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:55:21,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:55:21,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:55:21,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:21,501 INFO L87 Difference]: Start difference. First operand 8988 states and 13026 transitions. Second operand 5 states. [2019-10-15 02:55:24,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:55:24,478 INFO L93 Difference]: Finished difference Result 35771 states and 53297 transitions. [2019-10-15 02:55:24,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:55:24,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-10-15 02:55:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:55:24,677 INFO L225 Difference]: With dead ends: 35771 [2019-10-15 02:55:24,677 INFO L226 Difference]: Without dead ends: 26830 [2019-10-15 02:55:24,722 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26830 states. [2019-10-15 02:55:26,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26830 to 26814. [2019-10-15 02:55:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26814 states. [2019-10-15 02:55:27,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26814 states to 26814 states and 40164 transitions. [2019-10-15 02:55:27,127 INFO L78 Accepts]: Start accepts. Automaton has 26814 states and 40164 transitions. Word has length 138 [2019-10-15 02:55:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:55:27,128 INFO L462 AbstractCegarLoop]: Abstraction has 26814 states and 40164 transitions. [2019-10-15 02:55:27,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:55:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 26814 states and 40164 transitions. [2019-10-15 02:55:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 02:55:27,132 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:27,132 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:27,132 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:27,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:27,133 INFO L82 PathProgramCache]: Analyzing trace with hash 216454572, now seen corresponding path program 1 times [2019-10-15 02:55:27,133 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:27,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105464953] [2019-10-15 02:55:27,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:27,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:27,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:55:27,305 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-10-15 02:55:27,306 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105464953] [2019-10-15 02:55:27,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:55:27,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:55:27,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139971785] [2019-10-15 02:55:27,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:55:27,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:55:27,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:55:27,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:55:27,309 INFO L87 Difference]: Start difference. First operand 26814 states and 40164 transitions. Second operand 5 states. [2019-10-15 02:55:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:55:32,443 INFO L93 Difference]: Finished difference Result 104136 states and 158764 transitions. [2019-10-15 02:55:32,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:55:32,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-10-15 02:55:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:55:32,905 INFO L225 Difference]: With dead ends: 104136 [2019-10-15 02:55:32,906 INFO L226 Difference]: Without dead ends: 77369