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-f4eb214f-m [2019-10-13 22:06:11,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:06:11,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:06:11,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:06:11,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:06:11,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:06:11,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:06:11,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:06:11,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:06:11,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:06:11,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:06:11,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:06:11,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:06:11,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:06:11,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:06:11,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:06:11,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:06:11,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:06:11,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:06:11,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:06:11,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:06:11,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:06:11,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:06:11,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:06:11,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:06:11,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:06:11,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:06:11,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:06:11,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:06:11,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:06:11,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:06:11,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:06:11,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:06:11,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:06:11,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:06:11,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:06:11,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:06:11,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:06:11,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:06:11,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:06:11,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:06:11,806 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 22:06:11,821 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:06:11,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:06:11,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:06:11,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:06:11,822 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:06:11,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:06:11,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:06:11,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:06:11,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:06:11,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:06:11,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:06:11,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:06:11,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:06:11,824 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:06:11,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:06:11,825 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:06:11,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:06:11,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:06:11,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:06:11,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:06:11,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:06:11,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:06:11,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:06:11,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:06:11,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:06:11,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:06:11,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:06:11,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:06:11,828 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 22:06:12,091 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:06:12,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:06:12,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:06:12,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:06:12,109 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:06:12,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-13 22:06:12,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54d15a32/7c4a3ad45d0145c9bf651ed1601ca5a0/FLAG8bba6d927 [2019-10-13 22:06:12,877 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:06:12,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-13 22:06:12,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54d15a32/7c4a3ad45d0145c9bf651ed1601ca5a0/FLAG8bba6d927 [2019-10-13 22:06:13,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a54d15a32/7c4a3ad45d0145c9bf651ed1601ca5a0 [2019-10-13 22:06:13,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:06:13,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:06:13,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:06:13,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:06:13,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:06:13,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:06:13" (1/1) ... [2019-10-13 22:06:13,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b268c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:13, skipping insertion in model container [2019-10-13 22:06:13,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:06:13" (1/1) ... [2019-10-13 22:06:13,040 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:06:13,133 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:06:14,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:06:14,228 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:06:14,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:06:14,517 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:06:14,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14 WrapperNode [2019-10-13 22:06:14,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:06:14,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:06:14,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:06:14,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:06:14,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (1/1) ... [2019-10-13 22:06:14,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:06:14,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:06:14,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:06:14,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:06:14,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (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 22:06:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:06:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:06:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2019-10-13 22:06:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:06:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:06:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:06:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:06:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:06:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 22:06:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 22:06:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2019-10-13 22:06:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_save_reg_conf [2019-10-13 22:06:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_restore_reg_conf [2019-10-13 22:06:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2019-10-13 22:06:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2019-10-13 22:06:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom_val [2019-10-13 22:06:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom_val [2019-10-13 22:06:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf [2019-10-13 22:06:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_gbe_serial_rom_conf_mp [2019-10-13 22:06:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_gbe_mac_addr [2019-10-13 22:06:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_gbe_mac_addr [2019-10-13 22:06:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_read [2019-10-13 22:06:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_bin_write [2019-10-13 22:06:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pch_mac [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pch_mac [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_probe [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_suspend [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_resume [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_init [2019-10-13 22:06:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_driver_exit [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-13 22:06:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-13 22:06:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2019-10-13 22:06:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 22:06:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_8 [2019-10-13 22:06:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2019-10-13 22:06:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:06:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:06:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:06:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:06:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:06:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:06:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pch_phub_mutex [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pch_phub_mutex [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pch_phub_mutex [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2019-10-13 22:06:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pch_phub_mutex [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_enable_wake [2019-10-13 22:06:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 22:06:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 22:06:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:06:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:06:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2019-10-13 22:06:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2019-10-13 22:06:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2019-10-13 22:06:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2019-10-13 22:06:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_probe_2 [2019-10-13 22:06:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pch_bin_attr_release_2 [2019-10-13 22:06:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 22:06:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 22:06:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 22:06:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 22:06:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:06:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2019-10-13 22:06:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 22:06:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 22:06:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2019-10-13 22:06:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2019-10-13 22:06:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2019-10-13 22:06:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_bin_file [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:06:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:06:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 22:06:14,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-13 22:06:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:06:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-13 22:06:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-13 22:06:14,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 22:06:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_8 [2019-10-13 22:06:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2019-10-13 22:06:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 22:06:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 22:06:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2019-10-13 22:06:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2019-10-13 22:06:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 22:06:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 22:06:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-13 22:06:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 22:06:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 22:06:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 22:06:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 22:06:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 22:06:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2019-10-13 22:06:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2019-10-13 22:06:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:06:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2019-10-13 22:06:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_bin_file [2019-10-13 22:06:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:06:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:06:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 22:06:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 22:06:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 22:06:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_enable_wake [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2019-10-13 22:06:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:06:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 22:06:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_save_reg_conf [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:06:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_restore_reg_conf [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom_val [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom_val [2019-10-13 22:06:14,947 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_gbe_serial_rom_conf_mp [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_gbe_mac_addr [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_gbe_mac_addr [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_read [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_bin_write [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure show_pch_mac [2019-10-13 22:06:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure store_pch_mac [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_probe [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_suspend [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_resume [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_init [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_driver_exit [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:06:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_release_2 [2019-10-13 22:06:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pch_bin_attr_probe_2 [2019-10-13 22:06:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:06:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:06:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:06:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:06:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 22:06:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 22:06:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 22:06:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 22:06:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pch_phub_mutex [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pch_phub_mutex [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pch_phub_mutex [2019-10-13 22:06:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pch_phub_mutex [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pch_phub_mutex [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:06:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:06:19,636 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:06:19,637 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:06:19,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:06:19 BoogieIcfgContainer [2019-10-13 22:06:19,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:06:19,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:06:19,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:06:19,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:06:19,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:06:13" (1/3) ... [2019-10-13 22:06:19,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5540bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:06:19, skipping insertion in model container [2019-10-13 22:06:19,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:06:14" (2/3) ... [2019-10-13 22:06:19,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5540bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:06:19, skipping insertion in model container [2019-10-13 22:06:19,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:06:19" (3/3) ... [2019-10-13 22:06:19,648 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2019-10-13 22:06:19,658 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:06:19,673 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:06:19,684 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:06:19,727 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:06:19,727 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:06:19,728 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:06:19,728 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:06:19,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:06:19,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:06:19,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:06:19,728 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:06:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states. [2019-10-13 22:06:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 22:06:19,787 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:19,788 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] [2019-10-13 22:06:19,792 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:19,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:19,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1557035337, now seen corresponding path program 1 times [2019-10-13 22:06:19,808 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:19,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381145747] [2019-10-13 22:06:19,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:19,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:19,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:20,509 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381145747] [2019-10-13 22:06:20,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:20,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:06:20,510 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71481915] [2019-10-13 22:06:20,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:06:20,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:20,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:06:20,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:06:20,531 INFO L87 Difference]: Start difference. First operand 728 states. Second operand 3 states. [2019-10-13 22:06:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:21,240 INFO L93 Difference]: Finished difference Result 1985 states and 2703 transitions. [2019-10-13 22:06:21,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:06:21,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-13 22:06:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:21,289 INFO L225 Difference]: With dead ends: 1985 [2019-10-13 22:06:21,289 INFO L226 Difference]: Without dead ends: 1310 [2019-10-13 22:06:21,302 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 22:06:21,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2019-10-13 22:06:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1306. [2019-10-13 22:06:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1306 states. [2019-10-13 22:06:21,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1753 transitions. [2019-10-13 22:06:21,530 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1753 transitions. Word has length 26 [2019-10-13 22:06:21,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:21,530 INFO L462 AbstractCegarLoop]: Abstraction has 1306 states and 1753 transitions. [2019-10-13 22:06:21,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:06:21,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1753 transitions. [2019-10-13 22:06:21,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 22:06:21,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:21,542 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] [2019-10-13 22:06:21,543 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:21,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:21,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1143099405, now seen corresponding path program 1 times [2019-10-13 22:06:21,543 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:21,543 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162972416] [2019-10-13 22:06:21,544 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:21,544 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:21,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:21,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162972416] [2019-10-13 22:06:21,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:21,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:06:21,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727215723] [2019-10-13 22:06:21,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:06:21,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:21,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:06:21,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:06:21,712 INFO L87 Difference]: Start difference. First operand 1306 states and 1753 transitions. Second operand 3 states. [2019-10-13 22:06:22,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:22,481 INFO L93 Difference]: Finished difference Result 1308 states and 1754 transitions. [2019-10-13 22:06:22,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:06:22,482 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-13 22:06:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:22,491 INFO L225 Difference]: With dead ends: 1308 [2019-10-13 22:06:22,492 INFO L226 Difference]: Without dead ends: 1305 [2019-10-13 22:06:22,493 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 22:06:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2019-10-13 22:06:22,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2019-10-13 22:06:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2019-10-13 22:06:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1751 transitions. [2019-10-13 22:06:22,561 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1751 transitions. Word has length 29 [2019-10-13 22:06:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:22,562 INFO L462 AbstractCegarLoop]: Abstraction has 1305 states and 1751 transitions. [2019-10-13 22:06:22,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:06:22,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1751 transitions. [2019-10-13 22:06:22,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 22:06:22,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:22,564 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] [2019-10-13 22:06:22,564 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:22,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1075788627, now seen corresponding path program 1 times [2019-10-13 22:06:22,564 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:22,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328625168] [2019-10-13 22:06:22,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:22,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:22,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:22,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328625168] [2019-10-13 22:06:22,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:22,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:06:22,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662317112] [2019-10-13 22:06:22,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:06:22,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:22,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:06:22,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:06:22,685 INFO L87 Difference]: Start difference. First operand 1305 states and 1751 transitions. Second operand 3 states. [2019-10-13 22:06:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:23,152 INFO L93 Difference]: Finished difference Result 1307 states and 1752 transitions. [2019-10-13 22:06:23,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:06:23,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-13 22:06:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:23,162 INFO L225 Difference]: With dead ends: 1307 [2019-10-13 22:06:23,162 INFO L226 Difference]: Without dead ends: 1304 [2019-10-13 22:06:23,163 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 22:06:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-10-13 22:06:23,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2019-10-13 22:06:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2019-10-13 22:06:23,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1749 transitions. [2019-10-13 22:06:23,297 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1749 transitions. Word has length 30 [2019-10-13 22:06:23,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:23,297 INFO L462 AbstractCegarLoop]: Abstraction has 1304 states and 1749 transitions. [2019-10-13 22:06:23,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:06:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1749 transitions. [2019-10-13 22:06:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-13 22:06:23,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:23,299 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] [2019-10-13 22:06:23,299 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:23,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:23,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1010840624, now seen corresponding path program 1 times [2019-10-13 22:06:23,300 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:23,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589951390] [2019-10-13 22:06:23,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:23,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:23,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:23,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:23,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589951390] [2019-10-13 22:06:23,429 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:23,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:06:23,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948361213] [2019-10-13 22:06:23,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:06:23,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:23,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:06:23,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:06:23,431 INFO L87 Difference]: Start difference. First operand 1304 states and 1749 transitions. Second operand 3 states. [2019-10-13 22:06:24,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:24,072 INFO L93 Difference]: Finished difference Result 2442 states and 3284 transitions. [2019-10-13 22:06:24,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:06:24,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-13 22:06:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:24,096 INFO L225 Difference]: With dead ends: 2442 [2019-10-13 22:06:24,096 INFO L226 Difference]: Without dead ends: 2427 [2019-10-13 22:06:24,102 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 22:06:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2019-10-13 22:06:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2427. [2019-10-13 22:06:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2019-10-13 22:06:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3266 transitions. [2019-10-13 22:06:24,290 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3266 transitions. Word has length 31 [2019-10-13 22:06:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:24,290 INFO L462 AbstractCegarLoop]: Abstraction has 2427 states and 3266 transitions. [2019-10-13 22:06:24,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:06:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3266 transitions. [2019-10-13 22:06:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 22:06:24,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:24,296 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] [2019-10-13 22:06:24,297 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:24,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:24,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1583148565, now seen corresponding path program 1 times [2019-10-13 22:06:24,297 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:24,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755992858] [2019-10-13 22:06:24,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:24,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:24,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:24,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755992858] [2019-10-13 22:06:24,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:24,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:06:24,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651811866] [2019-10-13 22:06:24,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:06:24,451 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:24,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:06:24,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:06:24,452 INFO L87 Difference]: Start difference. First operand 2427 states and 3266 transitions. Second operand 3 states. [2019-10-13 22:06:24,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:24,684 INFO L93 Difference]: Finished difference Result 5219 states and 7015 transitions. [2019-10-13 22:06:24,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:06:24,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-13 22:06:24,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:24,818 INFO L225 Difference]: With dead ends: 5219 [2019-10-13 22:06:24,818 INFO L226 Difference]: Without dead ends: 2801 [2019-10-13 22:06:24,829 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 22:06:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2019-10-13 22:06:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2771. [2019-10-13 22:06:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2771 states. [2019-10-13 22:06:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3726 transitions. [2019-10-13 22:06:25,039 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3726 transitions. Word has length 55 [2019-10-13 22:06:25,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:25,042 INFO L462 AbstractCegarLoop]: Abstraction has 2771 states and 3726 transitions. [2019-10-13 22:06:25,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:06:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3726 transitions. [2019-10-13 22:06:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 22:06:25,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:25,048 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] [2019-10-13 22:06:25,048 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:25,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1853087362, now seen corresponding path program 1 times [2019-10-13 22:06:25,049 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:25,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349254592] [2019-10-13 22:06:25,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:25,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:25,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:06:25,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349254592] [2019-10-13 22:06:25,206 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:25,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:06:25,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255826789] [2019-10-13 22:06:25,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:06:25,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:25,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:06:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:06:25,208 INFO L87 Difference]: Start difference. First operand 2771 states and 3726 transitions. Second operand 4 states. [2019-10-13 22:06:26,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:26,646 INFO L93 Difference]: Finished difference Result 6100 states and 8208 transitions. [2019-10-13 22:06:26,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:06:26,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2019-10-13 22:06:26,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:26,672 INFO L225 Difference]: With dead ends: 6100 [2019-10-13 22:06:26,672 INFO L226 Difference]: Without dead ends: 3850 [2019-10-13 22:06:26,686 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 [2019-10-13 22:06:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2019-10-13 22:06:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3811. [2019-10-13 22:06:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2019-10-13 22:06:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5131 transitions. [2019-10-13 22:06:26,928 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5131 transitions. Word has length 71 [2019-10-13 22:06:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:26,930 INFO L462 AbstractCegarLoop]: Abstraction has 3811 states and 5131 transitions. [2019-10-13 22:06:26,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:06:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5131 transitions. [2019-10-13 22:06:26,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 22:06:26,938 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:26,939 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] [2019-10-13 22:06:26,939 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:26,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:26,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1932341821, now seen corresponding path program 1 times [2019-10-13 22:06:26,940 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:26,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554599258] [2019-10-13 22:06:26,940 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:26,941 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:26,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 22:06:27,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554599258] [2019-10-13 22:06:27,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:27,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:06:27,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002081622] [2019-10-13 22:06:27,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:06:27,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:27,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:06:27,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:06:27,214 INFO L87 Difference]: Start difference. First operand 3811 states and 5131 transitions. Second operand 5 states. [2019-10-13 22:06:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:27,442 INFO L93 Difference]: Finished difference Result 7101 states and 9567 transitions. [2019-10-13 22:06:27,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:06:27,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-10-13 22:06:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:27,472 INFO L225 Difference]: With dead ends: 7101 [2019-10-13 22:06:27,472 INFO L226 Difference]: Without dead ends: 3811 [2019-10-13 22:06:27,489 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 [2019-10-13 22:06:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2019-10-13 22:06:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3811. [2019-10-13 22:06:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3811 states. [2019-10-13 22:06:27,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3811 states to 3811 states and 5130 transitions. [2019-10-13 22:06:27,788 INFO L78 Accepts]: Start accepts. Automaton has 3811 states and 5130 transitions. Word has length 86 [2019-10-13 22:06:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:27,791 INFO L462 AbstractCegarLoop]: Abstraction has 3811 states and 5130 transitions. [2019-10-13 22:06:27,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:06:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3811 states and 5130 transitions. [2019-10-13 22:06:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 22:06:27,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:27,796 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] [2019-10-13 22:06:27,796 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:27,796 INFO L82 PathProgramCache]: Analyzing trace with hash 663286096, now seen corresponding path program 1 times [2019-10-13 22:06:27,797 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:27,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211641242] [2019-10-13 22:06:27,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:27,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:27,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 22:06:28,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211641242] [2019-10-13 22:06:28,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:28,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:06:28,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578560462] [2019-10-13 22:06:28,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:06:28,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:28,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:06:28,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:06:28,054 INFO L87 Difference]: Start difference. First operand 3811 states and 5130 transitions. Second operand 8 states. [2019-10-13 22:06:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:36,452 INFO L93 Difference]: Finished difference Result 3849 states and 5169 transitions. [2019-10-13 22:06:36,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:06:36,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2019-10-13 22:06:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:36,479 INFO L225 Difference]: With dead ends: 3849 [2019-10-13 22:06:36,480 INFO L226 Difference]: Without dead ends: 3846 [2019-10-13 22:06:36,484 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 [2019-10-13 22:06:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2019-10-13 22:06:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3846. [2019-10-13 22:06:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3846 states. [2019-10-13 22:06:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 5166 transitions. [2019-10-13 22:06:36,790 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 5166 transitions. Word has length 87 [2019-10-13 22:06:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:36,791 INFO L462 AbstractCegarLoop]: Abstraction has 3846 states and 5166 transitions. [2019-10-13 22:06:36,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:06:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 5166 transitions. [2019-10-13 22:06:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-13 22:06:36,801 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:36,801 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] [2019-10-13 22:06:36,802 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:36,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:36,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1095586396, now seen corresponding path program 1 times [2019-10-13 22:06:36,802 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:36,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37581412] [2019-10-13 22:06:36,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:36,803 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:36,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 22:06:37,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37581412] [2019-10-13 22:06:37,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:37,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:06:37,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743548582] [2019-10-13 22:06:37,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:06:37,123 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:37,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:06:37,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:06:37,124 INFO L87 Difference]: Start difference. First operand 3846 states and 5166 transitions. Second operand 8 states. [2019-10-13 22:06:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:43,892 INFO L93 Difference]: Finished difference Result 3862 states and 5178 transitions. [2019-10-13 22:06:43,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:06:43,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2019-10-13 22:06:43,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:43,916 INFO L225 Difference]: With dead ends: 3862 [2019-10-13 22:06:43,916 INFO L226 Difference]: Without dead ends: 3859 [2019-10-13 22:06:43,920 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 [2019-10-13 22:06:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2019-10-13 22:06:44,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2019-10-13 22:06:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3857 states. [2019-10-13 22:06:44,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5173 transitions. [2019-10-13 22:06:44,102 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5173 transitions. Word has length 90 [2019-10-13 22:06:44,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:44,104 INFO L462 AbstractCegarLoop]: Abstraction has 3857 states and 5173 transitions. [2019-10-13 22:06:44,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:06:44,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5173 transitions. [2019-10-13 22:06:44,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-13 22:06:44,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:44,114 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] [2019-10-13 22:06:44,115 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:44,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:44,115 INFO L82 PathProgramCache]: Analyzing trace with hash 878618982, now seen corresponding path program 1 times [2019-10-13 22:06:44,115 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:44,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774614844] [2019-10-13 22:06:44,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:44,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:44,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 22:06:44,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774614844] [2019-10-13 22:06:44,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893208462] [2019-10-13 22:06:44,290 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 22:06:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:44,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 22:06:44,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:06:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 22:06:45,006 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:06:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 22:06:45,115 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 22:06:45,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4] total 5 [2019-10-13 22:06:45,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032351890] [2019-10-13 22:06:45,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:06:45,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:45,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:06:45,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:06:45,117 INFO L87 Difference]: Start difference. First operand 3857 states and 5173 transitions. Second operand 4 states. [2019-10-13 22:06:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:47,284 INFO L93 Difference]: Finished difference Result 11041 states and 14812 transitions. [2019-10-13 22:06:47,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:06:47,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2019-10-13 22:06:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:47,387 INFO L225 Difference]: With dead ends: 11041 [2019-10-13 22:06:47,387 INFO L226 Difference]: Without dead ends: 11027 [2019-10-13 22:06:47,396 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:06:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11027 states. [2019-10-13 22:06:48,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11027 to 10979. [2019-10-13 22:06:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10979 states. [2019-10-13 22:06:48,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10979 states to 10979 states and 14750 transitions. [2019-10-13 22:06:48,271 INFO L78 Accepts]: Start accepts. Automaton has 10979 states and 14750 transitions. Word has length 95 [2019-10-13 22:06:48,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:06:48,272 INFO L462 AbstractCegarLoop]: Abstraction has 10979 states and 14750 transitions. [2019-10-13 22:06:48,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:06:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10979 states and 14750 transitions. [2019-10-13 22:06:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-13 22:06:48,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:06:48,291 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:06:48,498 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:06:48,498 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:06:48,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:06:48,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1154235850, now seen corresponding path program 1 times [2019-10-13 22:06:48,499 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:06:48,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805763749] [2019-10-13 22:06:48,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:48,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:06:48,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:06:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:06:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 22:06:48,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805763749] [2019-10-13 22:06:48,667 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:06:48,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:06:48,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497294416] [2019-10-13 22:06:48,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:06:48,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:06:48,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:06:48,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:06:48,669 INFO L87 Difference]: Start difference. First operand 10979 states and 14750 transitions. Second operand 4 states. [2019-10-13 22:06:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:06:50,261 INFO L93 Difference]: Finished difference Result 19855 states and 26677 transitions. [2019-10-13 22:06:50,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:06:50,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-10-13 22:06:50,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:06:50,300 INFO L225 Difference]: With dead ends: 19855 [2019-10-13 22:06:50,300 INFO L226 Difference]: Without dead ends: 8373 [2019-10-13 22:06:50,355 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 [2019-10-13 22:06:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8373 states.