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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -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-f4eb214f-m [2019-10-13 21:01:20,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:01:20,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:01:20,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:01:20,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:01:20,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:01:20,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:01:20,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:01:20,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:01:20,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:01:20,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:01:20,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:01:20,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:01:20,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:01:20,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:01:20,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:01:20,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:01:20,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:01:20,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:01:20,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:01:20,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:01:20,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:01:20,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:01:20,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:01:20,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:01:20,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:01:20,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:01:20,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:01:20,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:01:20,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:01:20,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:01:20,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:01:20,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:01:20,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:01:20,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:01:20,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:01:20,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:01:20,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:01:20,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:01:20,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:01:20,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:01:20,078 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 21:01:20,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:01:20,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:01:20,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:01:20,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:01:20,093 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:01:20,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:01:20,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:01:20,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:01:20,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:01:20,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:01:20,095 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:01:20,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:01:20,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:01:20,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:01:20,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:01:20,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:01:20,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:01:20,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:01:20,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:01:20,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:01:20,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:01:20,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:01:20,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:01:20,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:01:20,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:01:20,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:01:20,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:01:20,419 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:01:20,420 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:01:20,420 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-13 21:01:20,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175765d10/d77c9f3880ab40088b840eec455ec512/FLAG07d9a72b2 [2019-10-13 21:01:21,237 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:01:21,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-13 21:01:21,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175765d10/d77c9f3880ab40088b840eec455ec512/FLAG07d9a72b2 [2019-10-13 21:01:21,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175765d10/d77c9f3880ab40088b840eec455ec512 [2019-10-13 21:01:21,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:01:21,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:01:21,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:01:21,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:01:21,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:01:21,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:01:21" (1/1) ... [2019-10-13 21:01:21,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c29ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:21, skipping insertion in model container [2019-10-13 21:01:21,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:01:21" (1/1) ... [2019-10-13 21:01:21,338 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:01:21,441 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:01:22,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:01:22,861 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:01:23,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:01:23,329 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:01:23,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23 WrapperNode [2019-10-13 21:01:23,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:01:23,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:01:23,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:01:23,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:01:23,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (1/1) ... [2019-10-13 21:01:23,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:01:23,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:01:23,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:01:23,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:01:23,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (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 21:01:23,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:01:23,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:01:23,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:01:23,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 21:01:23,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 21:01:23,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 21:01:23,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 21:01:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 21:01:23,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 21:01:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 21:01:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 21:01:23,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 21:01:23,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 21:01:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 21:01:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 21:01:23,708 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 21:01:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 21:01:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-13 21:01:23,711 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pid [2019-10-13 21:01:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2019-10-13 21:01:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 21:01:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 21:01:23,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_block [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_exit [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_init [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure add_tx_queue [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure add_rx_queue [2019-10-13 21:01:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_rx_queue [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_block [2019-10-13 21:01:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2019-10-13 21:01:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure receive_char [2019-10-13 21:01:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure receive_error [2019-10-13 21:01:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure on_timeout [2019-10-13 21:01:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_signals [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure read_telegram [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_open [2019-10-13 21:01:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_read [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_write [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_receive_buf [2019-10-13 21:01:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2019-10-13 21:01:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2019-10-13 21:01:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-13 21:01:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-13 21:01:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_2 [2019-10-13 21:01:23,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-13 21:01:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2019-10-13 21:01:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-13 21:01:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:01:23,719 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 21:01:23,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 21:01:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-10-13 21:01:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_23 [2019-10-13 21:01:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_24 [2019-10-13 21:01:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_25 [2019-10-13 21:01:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_26 [2019-10-13 21:01:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_27 [2019-10-13 21:01:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_28 [2019-10-13 21:01:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_29 [2019-10-13 21:01:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_30 [2019-10-13 21:01:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_31 [2019-10-13 21:01:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_32 [2019-10-13 21:01:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_33 [2019-10-13 21:01:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 21:01:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 21:01:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 21:01:23,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 21:01:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 21:01:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 21:01:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 21:01:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 21:01:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 21:01:23,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 21:01:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 21:01:23,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 21:01:23,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 21:01:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 21:01:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 21:01:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 21:01:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 21:01:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 21:01:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 21:01:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 21:01:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_pid [2019-10-13 21:01:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 21:01:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 21:01:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 21:01:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 21:01:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 21:01:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 21:01:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2019-10-13 21:01:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 21:01:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2019-10-13 21:01:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_put_char [2019-10-13 21:01:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-13 21:01:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2019-10-13 21:01:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-13 21:01:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_write_room [2019-10-13 21:01:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 21:01:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 21:01:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 21:01:23,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 21:01:23,736 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 21:01:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:01:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 21:01:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 21:01:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 21:01:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 21:01:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 21:01:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 21:01:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:01:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:01:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 21:01:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:01:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 21:01:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 21:01:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:01:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 21:01:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:01:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 21:01:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 21:01:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 21:01:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 21:01:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 21:01:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 21:01:23,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 21:01:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 21:01:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 21:01:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 21:01:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:01:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 21:01:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 21:01:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-13 21:01:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 21:01:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 21:01:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 21:01:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_23 [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_24 [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_25 [2019-10-13 21:01:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_26 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_28 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_29 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_30 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_31 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_32 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_27 [2019-10-13 21:01:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_33 [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_pid [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure kill_pid [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 21:01:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-13 21:01:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_2 [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:01:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure tty_put_char [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure tty_write_room [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:01:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure add_tx_queue [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_block [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure receive_char [2019-10-13 21:01:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure receive_error [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure on_timeout [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure enable_signals [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure read_telegram [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2019-10-13 21:01:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_open [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_read [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_write [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2019-10-13 21:01:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_receive_buf [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure dump_block [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_exit [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_init [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure add_rx_queue [2019-10-13 21:01:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_rx_queue [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 21:01:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 21:01:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:01:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:01:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 21:01:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 21:01:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 21:01:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 21:01:24,533 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 21:01:27,350 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:01:27,350 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:01:27,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:01:27 BoogieIcfgContainer [2019-10-13 21:01:27,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:01:27,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:01:27,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:01:27,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:01:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:01:21" (1/3) ... [2019-10-13 21:01:27,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296235a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:01:27, skipping insertion in model container [2019-10-13 21:01:27,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:01:23" (2/3) ... [2019-10-13 21:01:27,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296235a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:01:27, skipping insertion in model container [2019-10-13 21:01:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:01:27" (3/3) ... [2019-10-13 21:01:27,360 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2019-10-13 21:01:27,370 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:01:27,380 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:01:27,394 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:01:27,434 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:01:27,434 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:01:27,434 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:01:27,434 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:01:27,435 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:01:27,435 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:01:27,435 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:01:27,436 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:01:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states. [2019-10-13 21:01:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 21:01:27,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:01:27,511 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2019-10-13 21:01:27,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:01:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:01:27,519 INFO L82 PathProgramCache]: Analyzing trace with hash -278468049, now seen corresponding path program 1 times [2019-10-13 21:01:27,525 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:01:27,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309933549] [2019-10-13 21:01:27,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:27,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:27,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:01:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:01:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-10-13 21:01:28,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309933549] [2019-10-13 21:01:28,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:01:28,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:01:28,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959191734] [2019-10-13 21:01:28,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:01:28,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:01:28,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:01:28,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:01:28,252 INFO L87 Difference]: Start difference. First operand 960 states. Second operand 3 states. [2019-10-13 21:01:28,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:01:28,527 INFO L93 Difference]: Finished difference Result 2189 states and 3020 transitions. [2019-10-13 21:01:28,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:01:28,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-13 21:01:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:01:28,572 INFO L225 Difference]: With dead ends: 2189 [2019-10-13 21:01:28,573 INFO L226 Difference]: Without dead ends: 1247 [2019-10-13 21:01:28,585 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 21:01:28,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2019-10-13 21:01:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1244. [2019-10-13 21:01:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1244 states. [2019-10-13 21:01:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1686 transitions. [2019-10-13 21:01:28,755 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1686 transitions. Word has length 147 [2019-10-13 21:01:28,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:01:28,756 INFO L462 AbstractCegarLoop]: Abstraction has 1244 states and 1686 transitions. [2019-10-13 21:01:28,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:01:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1686 transitions. [2019-10-13 21:01:28,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 21:01:28,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:01:28,762 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2019-10-13 21:01:28,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:01:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:01:28,762 INFO L82 PathProgramCache]: Analyzing trace with hash 745025737, now seen corresponding path program 1 times [2019-10-13 21:01:28,763 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:01:28,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181482361] [2019-10-13 21:01:28,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:28,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:28,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:01:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:01:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-10-13 21:01:28,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181482361] [2019-10-13 21:01:28,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:01:28,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:01:28,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393598444] [2019-10-13 21:01:28,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:01:28,984 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:01:28,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:01:28,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:01:28,984 INFO L87 Difference]: Start difference. First operand 1244 states and 1686 transitions. Second operand 5 states. [2019-10-13 21:01:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:01:32,118 INFO L93 Difference]: Finished difference Result 5982 states and 8655 transitions. [2019-10-13 21:01:32,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:01:32,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2019-10-13 21:01:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:01:32,158 INFO L225 Difference]: With dead ends: 5982 [2019-10-13 21:01:32,158 INFO L226 Difference]: Without dead ends: 4791 [2019-10-13 21:01:32,166 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 [2019-10-13 21:01:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4791 states. [2019-10-13 21:01:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4791 to 4775. [2019-10-13 21:01:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4775 states. [2019-10-13 21:01:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4775 states to 4775 states and 6780 transitions. [2019-10-13 21:01:32,501 INFO L78 Accepts]: Start accepts. Automaton has 4775 states and 6780 transitions. Word has length 160 [2019-10-13 21:01:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:01:32,502 INFO L462 AbstractCegarLoop]: Abstraction has 4775 states and 6780 transitions. [2019-10-13 21:01:32,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:01:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4775 states and 6780 transitions. [2019-10-13 21:01:32,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 21:01:32,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:01:32,505 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2019-10-13 21:01:32,505 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:01:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:01:32,506 INFO L82 PathProgramCache]: Analyzing trace with hash -2122377807, now seen corresponding path program 1 times [2019-10-13 21:01:32,506 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:01:32,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445892755] [2019-10-13 21:01:32,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:32,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:32,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:01:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:01:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-10-13 21:01:32,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445892755] [2019-10-13 21:01:32,670 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:01:32,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:01:32,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278331179] [2019-10-13 21:01:32,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:01:32,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:01:32,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:01:32,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:01:32,672 INFO L87 Difference]: Start difference. First operand 4775 states and 6780 transitions. Second operand 5 states. [2019-10-13 21:01:36,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:01:36,175 INFO L93 Difference]: Finished difference Result 23615 states and 36444 transitions. [2019-10-13 21:01:36,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:01:36,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2019-10-13 21:01:36,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:01:36,307 INFO L225 Difference]: With dead ends: 23615 [2019-10-13 21:01:36,307 INFO L226 Difference]: Without dead ends: 18893 [2019-10-13 21:01:36,342 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 [2019-10-13 21:01:36,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18893 states. [2019-10-13 21:01:37,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18893 to 18880. [2019-10-13 21:01:37,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18880 states. [2019-10-13 21:01:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18880 states to 18880 states and 28387 transitions. [2019-10-13 21:01:37,395 INFO L78 Accepts]: Start accepts. Automaton has 18880 states and 28387 transitions. Word has length 161 [2019-10-13 21:01:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:01:37,396 INFO L462 AbstractCegarLoop]: Abstraction has 18880 states and 28387 transitions. [2019-10-13 21:01:37,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:01:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 18880 states and 28387 transitions. [2019-10-13 21:01:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 21:01:37,399 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:01:37,399 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1] [2019-10-13 21:01:37,400 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:01:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:01:37,400 INFO L82 PathProgramCache]: Analyzing trace with hash -248844911, now seen corresponding path program 1 times [2019-10-13 21:01:37,400 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:01:37,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992143079] [2019-10-13 21:01:37,401 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:37,401 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:37,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:01:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:01:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-10-13 21:01:37,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992143079] [2019-10-13 21:01:37,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:01:37,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:01:37,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667809500] [2019-10-13 21:01:37,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:01:37,753 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:01:37,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:01:37,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:01:37,754 INFO L87 Difference]: Start difference. First operand 18880 states and 28387 transitions. Second operand 5 states. [2019-10-13 21:01:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:01:42,738 INFO L93 Difference]: Finished difference Result 94068 states and 157885 transitions. [2019-10-13 21:01:42,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:01:42,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2019-10-13 21:01:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:01:43,252 INFO L225 Difference]: With dead ends: 94068 [2019-10-13 21:01:43,252 INFO L226 Difference]: Without dead ends: 75241 [2019-10-13 21:01:43,385 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 [2019-10-13 21:01:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75241 states. [2019-10-13 21:01:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75241 to 75224. [2019-10-13 21:01:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75224 states. [2019-10-13 21:01:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75224 states to 75224 states and 121873 transitions. [2019-10-13 21:01:48,022 INFO L78 Accepts]: Start accepts. Automaton has 75224 states and 121873 transitions. Word has length 162 [2019-10-13 21:01:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:01:48,022 INFO L462 AbstractCegarLoop]: Abstraction has 75224 states and 121873 transitions. [2019-10-13 21:01:48,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:01:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 75224 states and 121873 transitions. [2019-10-13 21:01:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 21:01:48,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:01:48,025 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1] [2019-10-13 21:01:48,026 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:01:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:01:48,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1730137735, now seen corresponding path program 1 times [2019-10-13 21:01:48,026 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:01:48,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988568279] [2019-10-13 21:01:48,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:48,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:01:48,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:01:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:01:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-10-13 21:01:48,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988568279] [2019-10-13 21:01:48,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:01:48,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:01:48,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214503789] [2019-10-13 21:01:48,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:01:48,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:01:48,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:01:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:01:48,177 INFO L87 Difference]: Start difference. First operand 75224 states and 121873 transitions. Second operand 5 states.