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-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:46:52,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:46:52,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:46:53,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:46:53,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:46:53,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:46:53,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:46:53,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:46:53,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:46:53,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:46:53,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:46:53,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:46:53,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:46:53,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:46:53,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:46:53,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:46:53,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:46:53,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:46:53,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:46:53,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:46:53,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:46:53,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:46:53,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:46:53,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:46:53,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:46:53,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:46:53,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:46:53,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:46:53,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:46:53,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:46:53,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:46:53,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:46:53,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:46:53,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:46:53,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:46:53,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:46:53,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:46:53,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:46:53,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:46:53,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:46:53,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:46:53,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:46:53,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:46:53,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:46:53,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:46:53,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:46:53,099 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:46:53,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:46:53,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:46:53,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:46:53,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:46:53,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:46:53,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:46:53,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:46:53,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:46:53,102 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:46:53,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:46:53,102 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:46:53,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:46:53,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:46:53,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:46:53,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:46:53,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:46:53,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:46:53,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:46:53,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:46:53,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:46:53,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:46:53,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:46:53,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:46:53,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:46:53,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:46:53,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:46:53,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:46:53,448 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:46:53,448 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:46:53,449 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 22:46:53,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216ee9bcc/088de44d975a465cbe75e9e24c6d4e85/FLAG8293cb8a7 [2019-10-13 22:46:54,295 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:46:54,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 22:46:54,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216ee9bcc/088de44d975a465cbe75e9e24c6d4e85/FLAG8293cb8a7 [2019-10-13 22:46:54,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/216ee9bcc/088de44d975a465cbe75e9e24c6d4e85 [2019-10-13 22:46:54,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:46:54,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:46:54,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:46:54,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:46:54,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:46:54,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:46:54" (1/1) ... [2019-10-13 22:46:54,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a089867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:54, skipping insertion in model container [2019-10-13 22:46:54,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:46:54" (1/1) ... [2019-10-13 22:46:54,383 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:46:54,499 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:46:56,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:46:56,338 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:46:56,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:46:57,070 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:46:57,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57 WrapperNode [2019-10-13 22:46:57,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:46:57,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:46:57,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:46:57,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:46:57,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... [2019-10-13 22:46:57,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:46:57,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:46:57,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:46:57,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:46:57,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:46:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:46:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:46:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 22:46:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:46:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:46:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 22:46:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 22:46:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 22:46:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:46:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure current_top_of_stack [2019-10-13 22:46:57,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:46:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:46:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:46:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:46:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:46:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:46:57,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:46:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:46:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:46:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2019-10-13 22:46:57,494 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 22:46:57,495 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure need_resched [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-13 22:46:57,496 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-13 22:46:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-13 22:46:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:46:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:46:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 22:46:57,497 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2019-10-13 22:46:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2019-10-13 22:46:57,498 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_preempt [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_check_status [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2019-10-13 22:46:57,499 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_read [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_open [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2019-10-13 22:46:57,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_ioctl [2019-10-13 22:46:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_compat_ioctl [2019-10-13 22:46:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_console_write [2019-10-13 22:46:57,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2019-10-13 22:46:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_attach [2019-10-13 22:46:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2019-10-13 22:46:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init [2019-10-13 22:46:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_init_module [2019-10-13 22:46:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_cleanup_module [2019-10-13 22:46:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-13 22:46:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_parport_driver_1 [2019-10-13 22:46:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:46:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:46:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:46:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2019-10-13 22:46:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2019-10-13 22:46:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 22:46:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 22:46:57,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2019-10-13 22:46:57,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2019-10-13 22:46:57,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 22:46:57,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:46:57,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2019-10-13 22:46:57,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 22:46:57,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2019-10-13 22:46:57,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2019-10-13 22:46:57,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2019-10-13 22:46:57,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_18 [2019-10-13 22:46:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-13 22:46:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-13 22:46:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-13 22:46:57,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2019-10-13 22:46:57,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2019-10-13 22:46:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_24 [2019-10-13 22:46:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2019-10-13 22:46:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:46:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-13 22:46:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 22:46:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 22:46:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 22:46:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 22:46:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 22:46:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:46:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:46:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2019-10-13 22:46:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2019-10-13 22:46:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 22:46:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2019-10-13 22:46:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-13 22:46:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-13 22:46:57,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2019-10-13 22:46:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lp_mutex [2019-10-13 22:46:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-13 22:46:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lp_mutex [2019-10-13 22:46:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2019-10-13 22:46:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lp_mutex [2019-10-13 22:46:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lp_mutex [2019-10-13 22:46:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-13 22:46:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lp_mutex [2019-10-13 22:46:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:46:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:46:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 22:46:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 22:46:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 22:46:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 22:46:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-13 22:46:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-13 22:46:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-13 22:46:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-13 22:46:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-13 22:46:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-13 22:46:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-13 22:46:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-13 22:46:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:46:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2019-10-13 22:46:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 22:46:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 22:46:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:46:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 22:46:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:46:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 22:46:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:46:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __parport_register_driver [2019-10-13 22:46:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 22:46:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_get_timeval [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_close_1 [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:46:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 22:46:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 22:46:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 22:46:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:46:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 22:46:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim [2019-10-13 22:46:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2019-10-13 22:46:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_read [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_register_device [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_device [2019-10-13 22:46:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_unregister_driver [2019-10-13 22:46:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2019-10-13 22:46:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 22:46:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:46:57,546 INFO L138 BoogieDeclarations]: Found implementation of procedure register_console [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-10-13 22:46:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:46:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:46:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:46:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:46:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:46:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2019-10-13 22:46:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:46:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure current_top_of_stack [2019-10-13 22:46:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 22:46:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2019-10-13 22:46:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:46:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:46:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:46:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:46:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:46:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:46:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:46:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_18 [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2019-10-13 22:46:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 22:46:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2019-10-13 22:46:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2019-10-13 22:46:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-13 22:46:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2019-10-13 22:46:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-13 22:46:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-13 22:46:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 22:46:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 22:46:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2019-10-13 22:46:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2019-10-13 22:46:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2019-10-13 22:46:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 22:46:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:46:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 22:46:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 22:46:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 22:46:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-13 22:46:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 22:46:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 22:46:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:46:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 22:46:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure need_resched [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-13 22:46:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_parport_driver_1 [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-13 22:46:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_24 [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:46:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure register_console [2019-10-13 22:46:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 22:46:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure compat_get_timeval [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure __parport_register_driver [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_driver [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_register_device [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_unregister_device [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2019-10-13 22:46:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure parport_read [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2019-10-13 22:46:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure lp_preempt [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2019-10-13 22:46:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure lp_check_status [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure lp_read [2019-10-13 22:46:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure lp_open [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_ioctl [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_compat_ioctl [2019-10-13 22:46:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure lp_console_write [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_attach [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_init_module [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure lp_cleanup_module [2019-10-13 22:46:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_close_1 [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:46:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2019-10-13 22:46:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2019-10-13 22:46:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2019-10-13 22:46:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:46:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:46:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 22:46:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:46:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lp_mutex [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lp_mutex [2019-10-13 22:46:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lp_mutex [2019-10-13 22:46:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:46:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:46:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:46:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:46:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2019-10-13 22:46:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2019-10-13 22:46:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2019-10-13 22:46:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2019-10-13 22:46:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_port_mutex_of_lp_struct [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_port_mutex_of_lp_struct [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:46:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:46:58,557 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:47:03,016 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:47:03,016 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:47:03,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:03 BoogieIcfgContainer [2019-10-13 22:47:03,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:47:03,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:47:03,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:47:03,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:47:03,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:46:54" (1/3) ... [2019-10-13 22:47:03,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78312d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:03, skipping insertion in model container [2019-10-13 22:47:03,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:57" (2/3) ... [2019-10-13 22:47:03,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78312d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:47:03, skipping insertion in model container [2019-10-13 22:47:03,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:47:03" (3/3) ... [2019-10-13 22:47:03,029 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2019-10-13 22:47:03,040 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:47:03,056 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:47:03,068 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:47:03,109 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:47:03,109 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:47:03,109 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:47:03,109 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:47:03,109 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:47:03,110 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:47:03,110 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:47:03,110 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:47:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2019-10-13 22:47:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 22:47:03,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:03,188 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:03,190 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:03,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1140092400, now seen corresponding path program 1 times [2019-10-13 22:47:03,202 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:03,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714893723] [2019-10-13 22:47:03,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:03,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:03,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-13 22:47:04,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714893723] [2019-10-13 22:47:04,253 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:04,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:04,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613999758] [2019-10-13 22:47:04,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:04,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:04,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:04,274 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2019-10-13 22:47:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:04,606 INFO L93 Difference]: Finished difference Result 2082 states and 2751 transitions. [2019-10-13 22:47:04,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:04,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-13 22:47:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:04,648 INFO L225 Difference]: With dead ends: 2082 [2019-10-13 22:47:04,648 INFO L226 Difference]: Without dead ends: 1187 [2019-10-13 22:47:04,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2019-10-13 22:47:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1144. [2019-10-13 22:47:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2019-10-13 22:47:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1479 transitions. [2019-10-13 22:47:04,861 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1479 transitions. Word has length 162 [2019-10-13 22:47:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:04,863 INFO L462 AbstractCegarLoop]: Abstraction has 1144 states and 1479 transitions. [2019-10-13 22:47:04,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1479 transitions. [2019-10-13 22:47:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 22:47:04,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:04,868 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:04,868 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:04,869 INFO L82 PathProgramCache]: Analyzing trace with hash 207412342, now seen corresponding path program 1 times [2019-10-13 22:47:04,869 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:04,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356073300] [2019-10-13 22:47:04,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:04,870 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:04,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-13 22:47:05,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356073300] [2019-10-13 22:47:05,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:05,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:47:05,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805343181] [2019-10-13 22:47:05,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:47:05,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:05,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:47:05,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:47:05,148 INFO L87 Difference]: Start difference. First operand 1144 states and 1479 transitions. Second operand 7 states. [2019-10-13 22:47:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:05,364 INFO L93 Difference]: Finished difference Result 2272 states and 2936 transitions. [2019-10-13 22:47:05,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:47:05,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2019-10-13 22:47:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:05,377 INFO L225 Difference]: With dead ends: 2272 [2019-10-13 22:47:05,378 INFO L226 Difference]: Without dead ends: 1173 [2019-10-13 22:47:05,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:47:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2019-10-13 22:47:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1160. [2019-10-13 22:47:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2019-10-13 22:47:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1497 transitions. [2019-10-13 22:47:05,489 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1497 transitions. Word has length 162 [2019-10-13 22:47:05,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:05,490 INFO L462 AbstractCegarLoop]: Abstraction has 1160 states and 1497 transitions. [2019-10-13 22:47:05,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:47:05,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1497 transitions. [2019-10-13 22:47:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 22:47:05,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:05,494 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:05,494 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:05,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1651586468, now seen corresponding path program 1 times [2019-10-13 22:47:05,495 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:05,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105784661] [2019-10-13 22:47:05,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:05,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:05,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-13 22:47:05,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105784661] [2019-10-13 22:47:05,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:05,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:05,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166089642] [2019-10-13 22:47:05,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:05,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:05,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:05,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:05,955 INFO L87 Difference]: Start difference. First operand 1160 states and 1497 transitions. Second operand 3 states. [2019-10-13 22:47:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:05,997 INFO L93 Difference]: Finished difference Result 1162 states and 1498 transitions. [2019-10-13 22:47:05,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:05,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 22:47:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:06,006 INFO L225 Difference]: With dead ends: 1162 [2019-10-13 22:47:06,007 INFO L226 Difference]: Without dead ends: 1159 [2019-10-13 22:47:06,008 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-13 22:47:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1159. [2019-10-13 22:47:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2019-10-13 22:47:06,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1495 transitions. [2019-10-13 22:47:06,069 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1495 transitions. Word has length 165 [2019-10-13 22:47:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:06,070 INFO L462 AbstractCegarLoop]: Abstraction has 1159 states and 1495 transitions. [2019-10-13 22:47:06,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1495 transitions. [2019-10-13 22:47:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 22:47:06,074 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:06,074 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:06,074 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:06,075 INFO L82 PathProgramCache]: Analyzing trace with hash 339871895, now seen corresponding path program 1 times [2019-10-13 22:47:06,075 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:06,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990309598] [2019-10-13 22:47:06,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:06,304 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-13 22:47:06,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990309598] [2019-10-13 22:47:06,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:06,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:06,305 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882968398] [2019-10-13 22:47:06,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:06,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:06,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:06,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:06,306 INFO L87 Difference]: Start difference. First operand 1159 states and 1495 transitions. Second operand 3 states. [2019-10-13 22:47:06,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:06,352 INFO L93 Difference]: Finished difference Result 1161 states and 1496 transitions. [2019-10-13 22:47:06,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:06,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-13 22:47:06,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:06,361 INFO L225 Difference]: With dead ends: 1161 [2019-10-13 22:47:06,361 INFO L226 Difference]: Without dead ends: 1158 [2019-10-13 22:47:06,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-13 22:47:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2019-10-13 22:47:06,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2019-10-13 22:47:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1493 transitions. [2019-10-13 22:47:06,420 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1493 transitions. Word has length 166 [2019-10-13 22:47:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:06,421 INFO L462 AbstractCegarLoop]: Abstraction has 1158 states and 1493 transitions. [2019-10-13 22:47:06,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1493 transitions. [2019-10-13 22:47:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 22:47:06,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:06,424 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:06,424 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:06,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:06,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1945543871, now seen corresponding path program 1 times [2019-10-13 22:47:06,425 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:06,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539392105] [2019-10-13 22:47:06,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2019-10-13 22:47:07,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539392105] [2019-10-13 22:47:07,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:07,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:47:07,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77067966] [2019-10-13 22:47:07,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:47:07,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:47:07,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:47:07,085 INFO L87 Difference]: Start difference. First operand 1158 states and 1493 transitions. Second operand 7 states. [2019-10-13 22:47:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:18,180 INFO L93 Difference]: Finished difference Result 3289 states and 4293 transitions. [2019-10-13 22:47:18,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 22:47:18,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2019-10-13 22:47:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:18,198 INFO L225 Difference]: With dead ends: 3289 [2019-10-13 22:47:18,199 INFO L226 Difference]: Without dead ends: 2176 [2019-10-13 22:47:18,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:47:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2019-10-13 22:47:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2080. [2019-10-13 22:47:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-10-13 22:47:18,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2732 transitions. [2019-10-13 22:47:18,316 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2732 transitions. Word has length 167 [2019-10-13 22:47:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:18,317 INFO L462 AbstractCegarLoop]: Abstraction has 2080 states and 2732 transitions. [2019-10-13 22:47:18,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:47:18,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2732 transitions. [2019-10-13 22:47:18,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 22:47:18,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:18,322 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:18,322 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:18,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:18,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1741289895, now seen corresponding path program 1 times [2019-10-13 22:47:18,323 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:18,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645096405] [2019-10-13 22:47:18,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:18,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:18,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:19,814 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-10-13 22:47:20,039 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2019-10-13 22:47:20,354 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-10-13 22:47:20,570 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 35 [2019-10-13 22:47:20,712 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2019-10-13 22:47:21,323 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 36 proven. 68 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2019-10-13 22:47:21,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645096405] [2019-10-13 22:47:21,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863628044] [2019-10-13 22:47:21,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:47:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:21,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-13 22:47:22,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:47:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-13 22:47:22,144 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:47:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-13 22:47:22,348 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:47:22,349 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [21] total 22 [2019-10-13 22:47:22,349 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616996458] [2019-10-13 22:47:22,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:22,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:22,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-10-13 22:47:22,352 INFO L87 Difference]: Start difference. First operand 2080 states and 2732 transitions. Second operand 3 states. [2019-10-13 22:47:22,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:22,461 INFO L93 Difference]: Finished difference Result 2228 states and 2877 transitions. [2019-10-13 22:47:22,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:22,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-13 22:47:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:22,481 INFO L225 Difference]: With dead ends: 2228 [2019-10-13 22:47:22,482 INFO L226 Difference]: Without dead ends: 2224 [2019-10-13 22:47:22,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2019-10-13 22:47:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2019-10-13 22:47:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2220. [2019-10-13 22:47:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2220 states. [2019-10-13 22:47:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 2868 transitions. [2019-10-13 22:47:22,622 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 2868 transitions. Word has length 175 [2019-10-13 22:47:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:22,623 INFO L462 AbstractCegarLoop]: Abstraction has 2220 states and 2868 transitions. [2019-10-13 22:47:22,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 2868 transitions. [2019-10-13 22:47:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 22:47:22,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:22,629 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:22,840 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:47:22,841 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash 222894612, now seen corresponding path program 1 times [2019-10-13 22:47:22,841 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:22,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638249518] [2019-10-13 22:47:22,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:22,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:22,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-13 22:47:23,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638249518] [2019-10-13 22:47:23,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:23,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:23,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130541780] [2019-10-13 22:47:23,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:23,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:23,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:23,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:23,068 INFO L87 Difference]: Start difference. First operand 2220 states and 2868 transitions. Second operand 3 states. [2019-10-13 22:47:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:23,164 INFO L93 Difference]: Finished difference Result 2222 states and 2869 transitions. [2019-10-13 22:47:23,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:23,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 22:47:23,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:23,178 INFO L225 Difference]: With dead ends: 2222 [2019-10-13 22:47:23,179 INFO L226 Difference]: Without dead ends: 2219 [2019-10-13 22:47:23,181 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-13 22:47:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2219. [2019-10-13 22:47:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2019-10-13 22:47:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2866 transitions. [2019-10-13 22:47:23,307 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2866 transitions. Word has length 170 [2019-10-13 22:47:23,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:23,307 INFO L462 AbstractCegarLoop]: Abstraction has 2219 states and 2866 transitions. [2019-10-13 22:47:23,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2866 transitions. [2019-10-13 22:47:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 22:47:23,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:23,313 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:23,313 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:23,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1680742168, now seen corresponding path program 1 times [2019-10-13 22:47:23,314 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:23,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772475788] [2019-10-13 22:47:23,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:23,314 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:23,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2019-10-13 22:47:23,554 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772475788] [2019-10-13 22:47:23,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:23,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:23,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8389499] [2019-10-13 22:47:23,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:23,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:23,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:23,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:23,556 INFO L87 Difference]: Start difference. First operand 2219 states and 2866 transitions. Second operand 3 states. [2019-10-13 22:47:23,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:23,728 INFO L93 Difference]: Finished difference Result 4023 states and 5215 transitions. [2019-10-13 22:47:23,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:23,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-13 22:47:23,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:23,760 INFO L225 Difference]: With dead ends: 4023 [2019-10-13 22:47:23,760 INFO L226 Difference]: Without dead ends: 3952 [2019-10-13 22:47:23,763 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:23,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2019-10-13 22:47:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3940. [2019-10-13 22:47:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3940 states. [2019-10-13 22:47:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3940 states to 3940 states and 5108 transitions. [2019-10-13 22:47:24,132 INFO L78 Accepts]: Start accepts. Automaton has 3940 states and 5108 transitions. Word has length 171 [2019-10-13 22:47:24,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:24,135 INFO L462 AbstractCegarLoop]: Abstraction has 3940 states and 5108 transitions. [2019-10-13 22:47:24,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:24,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3940 states and 5108 transitions. [2019-10-13 22:47:24,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-13 22:47:24,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:24,144 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:24,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:24,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1363827004, now seen corresponding path program 1 times [2019-10-13 22:47:24,144 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:24,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402493146] [2019-10-13 22:47:24,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:24,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:24,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2019-10-13 22:47:24,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402493146] [2019-10-13 22:47:24,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:24,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:24,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911746139] [2019-10-13 22:47:24,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:24,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:24,380 INFO L87 Difference]: Start difference. First operand 3940 states and 5108 transitions. Second operand 3 states. [2019-10-13 22:47:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:24,662 INFO L93 Difference]: Finished difference Result 6352 states and 8278 transitions. [2019-10-13 22:47:24,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:24,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-10-13 22:47:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:24,680 INFO L225 Difference]: With dead ends: 6352 [2019-10-13 22:47:24,680 INFO L226 Difference]: Without dead ends: 2485 [2019-10-13 22:47:24,697 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2019-10-13 22:47:24,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2441. [2019-10-13 22:47:24,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2019-10-13 22:47:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3152 transitions. [2019-10-13 22:47:24,837 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3152 transitions. Word has length 232 [2019-10-13 22:47:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:24,838 INFO L462 AbstractCegarLoop]: Abstraction has 2441 states and 3152 transitions. [2019-10-13 22:47:24,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3152 transitions. [2019-10-13 22:47:24,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 22:47:24,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:24,845 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:24,846 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:24,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:24,846 INFO L82 PathProgramCache]: Analyzing trace with hash 523798495, now seen corresponding path program 1 times [2019-10-13 22:47:24,846 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:24,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241896780] [2019-10-13 22:47:24,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:24,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:24,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2019-10-13 22:47:25,106 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241896780] [2019-10-13 22:47:25,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:25,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:25,107 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560574209] [2019-10-13 22:47:25,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:25,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:25,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:25,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:25,108 INFO L87 Difference]: Start difference. First operand 2441 states and 3152 transitions. Second operand 3 states. [2019-10-13 22:47:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:25,425 INFO L93 Difference]: Finished difference Result 4675 states and 6003 transitions. [2019-10-13 22:47:25,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:25,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-13 22:47:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:25,446 INFO L225 Difference]: With dead ends: 4675 [2019-10-13 22:47:25,446 INFO L226 Difference]: Without dead ends: 2450 [2019-10-13 22:47:25,457 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:25,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2019-10-13 22:47:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2426. [2019-10-13 22:47:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2426 states. [2019-10-13 22:47:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3125 transitions. [2019-10-13 22:47:25,642 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3125 transitions. Word has length 246 [2019-10-13 22:47:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:25,643 INFO L462 AbstractCegarLoop]: Abstraction has 2426 states and 3125 transitions. [2019-10-13 22:47:25,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3125 transitions. [2019-10-13 22:47:25,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 22:47:25,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:25,656 INFO L380 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:25,657 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:25,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:25,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1386546718, now seen corresponding path program 1 times [2019-10-13 22:47:25,658 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:25,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163238468] [2019-10-13 22:47:25,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:25,658 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:25,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2019-10-13 22:47:26,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163238468] [2019-10-13 22:47:26,102 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:26,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:47:26,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58266364] [2019-10-13 22:47:26,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:47:26,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:26,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:47:26,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:47:26,104 INFO L87 Difference]: Start difference. First operand 2426 states and 3125 transitions. Second operand 7 states.