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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:08:36,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:08:36,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:08:36,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:08:36,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:08:36,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:08:36,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:08:36,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:08:36,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:08:36,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:08:36,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:08:36,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:08:36,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:08:36,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:08:36,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:08:36,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:08:36,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:08:36,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:08:36,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:08:36,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:08:36,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:08:36,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:08:36,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:08:36,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:08:36,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:08:36,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:08:36,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:08:36,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:08:36,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:08:36,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:08:36,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:08:36,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:08:36,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:08:36,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:08:36,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:08:36,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:08:36,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:08:36,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:08:36,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:08:36,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:08:36,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:08:36,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:08:36,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:08:36,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:08:36,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:08:36,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:08:36,542 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:08:36,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:08:36,542 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:08:36,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:08:36,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:08:36,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:08:36,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:08:36,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:08:36,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:08:36,544 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:08:36,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:08:36,544 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:08:36,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:08:36,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:08:36,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:08:36,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:08:36,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:08:36,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:08:36,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:08:36,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:08:36,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:08:36,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:08:36,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:08:36,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:08:36,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:08:36,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:08:36,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:08:36,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:08:36,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:08:36,878 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:08:36,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-15 02:08:36,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80ca61eb/4cfce715d48b4d3c8688698d3468516c/FLAG8d270b040 [2019-10-15 02:08:37,728 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:08:37,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-15 02:08:37,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80ca61eb/4cfce715d48b4d3c8688698d3468516c/FLAG8d270b040 [2019-10-15 02:08:37,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c80ca61eb/4cfce715d48b4d3c8688698d3468516c [2019-10-15 02:08:37,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:08:37,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:08:37,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:37,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:08:37,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:08:37,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:37" (1/1) ... [2019-10-15 02:08:37,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5370fc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:37, skipping insertion in model container [2019-10-15 02:08:37,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:37" (1/1) ... [2019-10-15 02:08:37,856 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:08:37,954 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:08:39,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:39,236 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:08:39,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:39,542 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:08:39,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39 WrapperNode [2019-10-15 02:08:39,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:39,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:08:39,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:08:39,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:08:39,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... [2019-10-15 02:08:39,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:08:39,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:08:39,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:08:39,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:08:39,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:08:39,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:08:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:08:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2019-10-15 02:08:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:08:39,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:08:39,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:08:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:08:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:08:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-15 02:08:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-15 02:08:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2019-10-15 02:08:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_save_reg_conf [2019-10-15 02:08:39,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_restore_reg_conf [2019-10-15 02:08:39,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2019-10-15 02:08:39,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2019-10-15 02:08:39,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom_val [2019-10-15 02:08:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom_val [2019-10-15 02:08:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf [2019-10-15 02:08:39,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf_mp [2019-10-15 02:08:39,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_gbe_mac_addr [2019-10-15 02:08:39,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_gbe_mac_addr [2019-10-15 02:08:39,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_read [2019-10-15 02:08:39,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_write [2019-10-15 02:08:39,910 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pch_mac [2019-10-15 02:08:39,910 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pch_mac [2019-10-15 02:08:39,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_probe [2019-10-15 02:08:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2019-10-15 02:08:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_suspend [2019-10-15 02:08:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_resume [2019-10-15 02:08:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_init [2019-10-15 02:08:39,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_exit [2019-10-15 02:08:39,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:08:39,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 02:08:39,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:39,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-15 02:08:39,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-15 02:08:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-15 02:08:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2019-10-15 02:08:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:39,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_8 [2019-10-15 02:08:39,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 02:08:39,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-15 02:08:39,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-15 02:08:39,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:08:39,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:08:39,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 02:08:39,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:39,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:39,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:08:39,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:39,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:39,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:39,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:39,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:39,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:39,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:39,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:39,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2019-10-15 02:08:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pch_phub_mutex [2019-10-15 02:08:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pch_phub_mutex [2019-10-15 02:08:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pch_phub_mutex [2019-10-15 02:08:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2019-10-15 02:08:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pch_phub_mutex [2019-10-15 02:08:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2019-10-15 02:08:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:08:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:08:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-15 02:08:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_enable_wake [2019-10-15 02:08:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-15 02:08:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:08:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-15 02:08:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-15 02:08:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2019-10-15 02:08:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2019-10-15 02:08:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2019-10-15 02:08:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2019-10-15 02:08:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_probe_2 [2019-10-15 02:08:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_release_2 [2019-10-15 02:08:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-15 02:08:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:08:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-15 02:08:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:08:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:08:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2019-10-15 02:08:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-15 02:08:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-15 02:08:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2019-10-15 02:08:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2019-10-15 02:08:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2019-10-15 02:08:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-10-15 02:08:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-10-15 02:08:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2019-10-15 02:08:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2019-10-15 02:08:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2019-10-15 02:08:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2019-10-15 02:08:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-15 02:08:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2019-10-15 02:08:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2019-10-15 02:08:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_bin_file [2019-10-15 02:08:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2019-10-15 02:08:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:08:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:08:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:08:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:08:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-15 02:08:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:08:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-15 02:08:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-15 02:08:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:08:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-15 02:08:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:08:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-15 02:08:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_8 [2019-10-15 02:08:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-15 02:08:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-15 02:08:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-15 02:08:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2019-10-15 02:08:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2019-10-15 02:08:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:08:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 02:08:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-15 02:08:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:08:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2019-10-15 02:08:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2019-10-15 02:08:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:08:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2019-10-15 02:08:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2019-10-15 02:08:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2019-10-15 02:08:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2019-10-15 02:08:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2019-10-15 02:08:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2019-10-15 02:08:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2019-10-15 02:08:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2019-10-15 02:08:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_bin_file [2019-10-15 02:08:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-15 02:08:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-15 02:08:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:08:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-15 02:08:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-15 02:08:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2019-10-15 02:08:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2019-10-15 02:08:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2019-10-15 02:08:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2019-10-15 02:08:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2019-10-15 02:08:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_enable_wake [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-15 02:08:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:08:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:08:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:08:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:08:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-15 02:08:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-15 02:08:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-15 02:08:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2019-10-15 02:08:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:08:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2019-10-15 02:08:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:08:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_save_reg_conf [2019-10-15 02:08:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:08:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:08:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:08:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:08:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_restore_reg_conf [2019-10-15 02:08:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2019-10-15 02:08:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2019-10-15 02:08:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom_val [2019-10-15 02:08:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom_val [2019-10-15 02:08:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf [2019-10-15 02:08:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf_mp [2019-10-15 02:08:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_gbe_mac_addr [2019-10-15 02:08:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_gbe_mac_addr [2019-10-15 02:08:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_read [2019-10-15 02:08:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_write [2019-10-15 02:08:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure show_pch_mac [2019-10-15 02:08:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure store_pch_mac [2019-10-15 02:08:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_probe [2019-10-15 02:08:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2019-10-15 02:08:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_suspend [2019-10-15 02:08:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_resume [2019-10-15 02:08:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_init [2019-10-15 02:08:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_exit [2019-10-15 02:08:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:08:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_release_2 [2019-10-15 02:08:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_probe_2 [2019-10-15 02:08:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:08:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:08:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:08:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 02:08:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:39,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pch_phub_mutex [2019-10-15 02:08:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pch_phub_mutex [2019-10-15 02:08:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pch_phub_mutex [2019-10-15 02:08:39,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2019-10-15 02:08:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pch_phub_mutex [2019-10-15 02:08:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:08:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 02:08:39,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:08:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:08:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:08:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:08:39,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:08:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:08:45,931 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:08:45,931 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:08:45,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:45 BoogieIcfgContainer [2019-10-15 02:08:45,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:08:45,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:08:45,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:08:45,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:08:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:08:37" (1/3) ... [2019-10-15 02:08:45,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3600dbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:45, skipping insertion in model container [2019-10-15 02:08:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:39" (2/3) ... [2019-10-15 02:08:45,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3600dbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:45, skipping insertion in model container [2019-10-15 02:08:45,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:45" (3/3) ... [2019-10-15 02:08:45,941 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-15 02:08:45,950 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:08:45,959 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:08:45,970 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:08:45,999 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:08:45,999 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:08:45,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:08:45,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:08:45,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:08:46,000 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:08:46,000 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:08:46,000 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:08:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states. [2019-10-15 02:08:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:08:46,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:46,050 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:46,053 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:46,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:46,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1557035337, now seen corresponding path program 1 times [2019-10-15 02:08:46,070 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:46,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717621705] [2019-10-15 02:08:46,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:46,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:46,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:46,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717621705] [2019-10-15 02:08:46,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:46,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:46,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832762023] [2019-10-15 02:08:46,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:46,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:46,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:46,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:46,717 INFO L87 Difference]: Start difference. First operand 728 states. Second operand 3 states. [2019-10-15 02:08:47,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:47,497 INFO L93 Difference]: Finished difference Result 1985 states and 2703 transitions. [2019-10-15 02:08:47,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:47,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-15 02:08:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:47,537 INFO L225 Difference]: With dead ends: 1985 [2019-10-15 02:08:47,537 INFO L226 Difference]: Without dead ends: 1310 [2019-10-15 02:08:47,550 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2019-10-15 02:08:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1306. [2019-10-15 02:08:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2019-10-15 02:08:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1753 transitions. [2019-10-15 02:08:47,762 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1753 transitions. Word has length 26 [2019-10-15 02:08:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:47,763 INFO L462 AbstractCegarLoop]: Abstraction has 1306 states and 1753 transitions. [2019-10-15 02:08:47,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1753 transitions. [2019-10-15 02:08:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 02:08:47,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:47,775 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:47,776 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:47,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:47,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1143099405, now seen corresponding path program 1 times [2019-10-15 02:08:47,776 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:47,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490319219] [2019-10-15 02:08:47,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:47,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:47,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:47,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490319219] [2019-10-15 02:08:47,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:47,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:47,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928533184] [2019-10-15 02:08:47,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:47,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:47,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:47,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:47,939 INFO L87 Difference]: Start difference. First operand 1306 states and 1753 transitions. Second operand 3 states. [2019-10-15 02:08:48,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:48,692 INFO L93 Difference]: Finished difference Result 1308 states and 1754 transitions. [2019-10-15 02:08:48,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:48,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-15 02:08:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:48,702 INFO L225 Difference]: With dead ends: 1308 [2019-10-15 02:08:48,702 INFO L226 Difference]: Without dead ends: 1305 [2019-10-15 02:08:48,704 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:48,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2019-10-15 02:08:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2019-10-15 02:08:48,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2019-10-15 02:08:48,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1751 transitions. [2019-10-15 02:08:48,769 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1751 transitions. Word has length 29 [2019-10-15 02:08:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:48,769 INFO L462 AbstractCegarLoop]: Abstraction has 1305 states and 1751 transitions. [2019-10-15 02:08:48,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:48,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1751 transitions. [2019-10-15 02:08:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 02:08:48,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:48,771 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:48,772 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:48,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1075788627, now seen corresponding path program 1 times [2019-10-15 02:08:48,772 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:48,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650184521] [2019-10-15 02:08:48,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:48,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:48,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:48,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650184521] [2019-10-15 02:08:48,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:48,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:48,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40476328] [2019-10-15 02:08:48,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:48,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:48,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:48,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:48,933 INFO L87 Difference]: Start difference. First operand 1305 states and 1751 transitions. Second operand 3 states. [2019-10-15 02:08:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:49,467 INFO L93 Difference]: Finished difference Result 1307 states and 1752 transitions. [2019-10-15 02:08:49,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:49,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-15 02:08:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:49,478 INFO L225 Difference]: With dead ends: 1307 [2019-10-15 02:08:49,478 INFO L226 Difference]: Without dead ends: 1304 [2019-10-15 02:08:49,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-10-15 02:08:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2019-10-15 02:08:49,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2019-10-15 02:08:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1749 transitions. [2019-10-15 02:08:49,552 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1749 transitions. Word has length 30 [2019-10-15 02:08:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:49,552 INFO L462 AbstractCegarLoop]: Abstraction has 1304 states and 1749 transitions. [2019-10-15 02:08:49,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1749 transitions. [2019-10-15 02:08:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-15 02:08:49,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:49,554 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:49,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:49,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1010840624, now seen corresponding path program 1 times [2019-10-15 02:08:49,555 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:49,555 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243930083] [2019-10-15 02:08:49,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:49,555 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:49,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:49,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243930083] [2019-10-15 02:08:49,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:49,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:49,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115969856] [2019-10-15 02:08:49,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:49,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:49,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:49,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:49,682 INFO L87 Difference]: Start difference. First operand 1304 states and 1749 transitions. Second operand 3 states. [2019-10-15 02:08:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:50,264 INFO L93 Difference]: Finished difference Result 2442 states and 3284 transitions. [2019-10-15 02:08:50,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:50,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-15 02:08:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:50,284 INFO L225 Difference]: With dead ends: 2442 [2019-10-15 02:08:50,284 INFO L226 Difference]: Without dead ends: 2427 [2019-10-15 02:08:50,286 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2019-10-15 02:08:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2427. [2019-10-15 02:08:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2019-10-15 02:08:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3266 transitions. [2019-10-15 02:08:50,473 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3266 transitions. Word has length 31 [2019-10-15 02:08:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:50,474 INFO L462 AbstractCegarLoop]: Abstraction has 2427 states and 3266 transitions. [2019-10-15 02:08:50,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3266 transitions. [2019-10-15 02:08:50,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 02:08:50,479 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:50,479 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:50,479 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:50,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:50,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1583148565, now seen corresponding path program 1 times [2019-10-15 02:08:50,480 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:50,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919155749] [2019-10-15 02:08:50,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:50,481 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:50,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:50,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919155749] [2019-10-15 02:08:50,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:50,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:50,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805729472] [2019-10-15 02:08:50,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:50,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:50,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:50,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:50,626 INFO L87 Difference]: Start difference. First operand 2427 states and 3266 transitions. Second operand 3 states. [2019-10-15 02:08:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:51,018 INFO L93 Difference]: Finished difference Result 5219 states and 7015 transitions. [2019-10-15 02:08:51,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:51,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-15 02:08:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:51,038 INFO L225 Difference]: With dead ends: 5219 [2019-10-15 02:08:51,038 INFO L226 Difference]: Without dead ends: 2801 [2019-10-15 02:08:51,053 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2019-10-15 02:08:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2771. [2019-10-15 02:08:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2771 states. [2019-10-15 02:08:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3726 transitions. [2019-10-15 02:08:51,236 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3726 transitions. Word has length 55 [2019-10-15 02:08:51,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:51,238 INFO L462 AbstractCegarLoop]: Abstraction has 2771 states and 3726 transitions. [2019-10-15 02:08:51,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3726 transitions. [2019-10-15 02:08:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-15 02:08:51,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:51,243 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 02:08:51,244 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:51,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:51,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1853087362, now seen corresponding path program 1 times [2019-10-15 02:08:51,244 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:51,244 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979378045] [2019-10-15 02:08:51,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:51,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:51,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:51,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979378045] [2019-10-15 02:08:51,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:51,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:08:51,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600624263] [2019-10-15 02:08:51,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:08:51,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:51,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:08:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:08:51,416 INFO L87 Difference]: Start difference. First operand 2771 states and 3726 transitions. Second operand 4 states. [2019-10-15 02:08:52,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:52,950 INFO L93 Difference]: Finished difference Result 6100 states and 8208 transitions. [2019-10-15 02:08:52,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:08:52,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2019-10-15 02:08:52,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:52,976 INFO L225 Difference]: With dead ends: 6100 [2019-10-15 02:08:52,976 INFO L226 Difference]: Without dead ends: 3850 [2019-10-15 02:08:52,988 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:08:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2019-10-15 02:08:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3811. [2019-10-15 02:08:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2019-10-15 02:08:53,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5131 transitions. [2019-10-15 02:08:53,222 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5131 transitions. Word has length 71 [2019-10-15 02:08:53,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:53,224 INFO L462 AbstractCegarLoop]: Abstraction has 3811 states and 5131 transitions. [2019-10-15 02:08:53,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:08:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5131 transitions. [2019-10-15 02:08:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 02:08:53,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:53,234 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:53,234 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1932341821, now seen corresponding path program 1 times [2019-10-15 02:08:53,235 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:53,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599267473] [2019-10-15 02:08:53,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 02:08:53,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599267473] [2019-10-15 02:08:53,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:53,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:08:53,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42270276] [2019-10-15 02:08:53,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:08:53,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:53,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:08:53,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:08:53,482 INFO L87 Difference]: Start difference. First operand 3811 states and 5131 transitions. Second operand 5 states. [2019-10-15 02:08:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:53,831 INFO L93 Difference]: Finished difference Result 7101 states and 9567 transitions. [2019-10-15 02:08:53,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:08:53,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-10-15 02:08:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:53,857 INFO L225 Difference]: With dead ends: 7101 [2019-10-15 02:08:53,858 INFO L226 Difference]: Without dead ends: 3811 [2019-10-15 02:08:53,879 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:08:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2019-10-15 02:08:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3811. [2019-10-15 02:08:54,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2019-10-15 02:08:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5130 transitions. [2019-10-15 02:08:54,111 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5130 transitions. Word has length 86 [2019-10-15 02:08:54,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:54,113 INFO L462 AbstractCegarLoop]: Abstraction has 3811 states and 5130 transitions. [2019-10-15 02:08:54,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:08:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5130 transitions. [2019-10-15 02:08:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-15 02:08:54,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:54,119 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:54,120 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash 663286096, now seen corresponding path program 1 times [2019-10-15 02:08:54,120 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:54,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361369210] [2019-10-15 02:08:54,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:54,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:54,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 02:08:54,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361369210] [2019-10-15 02:08:54,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:54,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:08:54,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251731203] [2019-10-15 02:08:54,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:08:54,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:54,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:08:54,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:08:54,404 INFO L87 Difference]: Start difference. First operand 3811 states and 5130 transitions. Second operand 8 states. [2019-10-15 02:09:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:03,098 INFO L93 Difference]: Finished difference Result 3849 states and 5169 transitions. [2019-10-15 02:09:03,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:03,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2019-10-15 02:09:03,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:03,121 INFO L225 Difference]: With dead ends: 3849 [2019-10-15 02:09:03,122 INFO L226 Difference]: Without dead ends: 3846 [2019-10-15 02:09:03,125 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:03,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2019-10-15 02:09:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3846. [2019-10-15 02:09:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3846 states. [2019-10-15 02:09:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 5166 transitions. [2019-10-15 02:09:03,331 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 5166 transitions. Word has length 87 [2019-10-15 02:09:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:03,331 INFO L462 AbstractCegarLoop]: Abstraction has 3846 states and 5166 transitions. [2019-10-15 02:09:03,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:03,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 5166 transitions. [2019-10-15 02:09:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-15 02:09:03,339 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:03,340 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:09:03,340 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:03,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1095586396, now seen corresponding path program 1 times [2019-10-15 02:09:03,340 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:03,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343003584] [2019-10-15 02:09:03,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:03,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:03,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 02:09:03,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343003584] [2019-10-15 02:09:03,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:09:03,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:09:03,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557328198] [2019-10-15 02:09:03,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:09:03,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:03,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:09:03,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:03,572 INFO L87 Difference]: Start difference. First operand 3846 states and 5166 transitions. Second operand 8 states. [2019-10-15 02:09:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:09:10,932 INFO L93 Difference]: Finished difference Result 3862 states and 5178 transitions. [2019-10-15 02:09:10,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 02:09:10,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2019-10-15 02:09:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:09:10,955 INFO L225 Difference]: With dead ends: 3862 [2019-10-15 02:09:10,956 INFO L226 Difference]: Without dead ends: 3859 [2019-10-15 02:09:10,959 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:09:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2019-10-15 02:09:11,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2019-10-15 02:09:11,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2019-10-15 02:09:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5173 transitions. [2019-10-15 02:09:11,136 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5173 transitions. Word has length 90 [2019-10-15 02:09:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:09:11,139 INFO L462 AbstractCegarLoop]: Abstraction has 3857 states and 5173 transitions. [2019-10-15 02:09:11,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:09:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5173 transitions. [2019-10-15 02:09:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-15 02:09:11,150 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:09:11,150 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:09:11,151 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:09:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:09:11,151 INFO L82 PathProgramCache]: Analyzing trace with hash 878618982, now seen corresponding path program 1 times [2019-10-15 02:09:11,151 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:09:11,152 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532980609] [2019-10-15 02:09:11,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:11,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:09:11,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:09:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:09:11,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532980609] [2019-10-15 02:09:11,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901836079] [2019-10-15 02:09:11,424 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 [2019-10-15 02:09:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:09:12,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:09:12,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:09:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:09:12,342 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:09:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 02:09:12,455 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 02:09:12,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 5 [2019-10-15 02:09:12,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672166381] [2019-10-15 02:09:12,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:09:12,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:09:12,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:09:12,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:09:12,457 INFO L87 Difference]: Start difference. First operand 3857 states and 5173 transitions. Second operand 4 states.