java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:46:36,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:46:36,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:46:36,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:46:36,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:46:36,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:46:36,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:46:36,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:46:36,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:46:36,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:46:36,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:46:36,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:46:36,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:46:36,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:46:36,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:46:36,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:46:36,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:46:36,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:46:36,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:46:36,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:46:36,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:46:36,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:46:36,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:46:36,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:46:36,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:46:36,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:46:36,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:46:36,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:46:36,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:46:36,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:46:36,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:46:36,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:46:36,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:46:36,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:46:36,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:46:36,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:46:36,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:46:36,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:46:36,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:46:36,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:46:36,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:46:36,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:46:36,879 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:46:36,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:46:36,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:46:36,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:46:36,881 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:46:36,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:46:36,883 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:46:36,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:46:36,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:46:36,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:46:36,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:46:36,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:46:36,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:46:36,885 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:46:36,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:46:36,885 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:46:36,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:46:36,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:46:36,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:46:36,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:46:36,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:46:36,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:46:36,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:46:36,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:46:36,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:46:36,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:46:36,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:46:36,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:46:36,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:46:37,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:46:37,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:46:37,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:46:37,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:46:37,179 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:46:37,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-10-13 22:46:37,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82c7080/59344464e9e942f994d20a264e071b5e/FLAG2fbacf4ee [2019-10-13 22:46:38,174 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:46:38,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-10-13 22:46:38,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82c7080/59344464e9e942f994d20a264e071b5e/FLAG2fbacf4ee [2019-10-13 22:46:38,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd82c7080/59344464e9e942f994d20a264e071b5e [2019-10-13 22:46:38,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:46:38,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:46:38,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:46:38,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:46:38,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:46:38,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:46:38" (1/1) ... [2019-10-13 22:46:38,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a415c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:38, skipping insertion in model container [2019-10-13 22:46:38,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:46:38" (1/1) ... [2019-10-13 22:46:38,631 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:46:38,763 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:46:40,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:46:40,991 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:46:41,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:46:41,718 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:46:41,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41 WrapperNode [2019-10-13 22:46:41,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:46:41,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:46:41,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:46:41,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:46:41,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:41,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:41,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:41,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:41,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:42,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:42,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... [2019-10-13 22:46:42,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:46:42,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:46:42,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:46:42,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:46:42,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:46:42,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:46:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:46:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:46:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 22:46:42,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 22:46:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:46:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:46:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2019-10-13 22:46:42,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 22:46:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:46:42,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-13 22:46:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 22:46:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 22:46:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 22:46:42,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:46:42,187 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 22:46:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 22:46:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-13 22:46:42,190 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 22:46:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-13 22:46:42,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-13 22:46:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-13 22:46:42,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2019-10-13 22:46:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2019-10-13 22:46:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2019-10-13 22:46:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_if_positive [2019-10-13 22:46:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-13 22:46:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-13 22:46:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-13 22:46:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-13 22:46:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-13 22:46:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2019-10-13 22:46:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 22:46:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid_nr [2019-10-13 22:46:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:46:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:46:42,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 22:46:42,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __to_fd [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fdget [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:46:42,198 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_register_iommu_driver [2019-10-13 22:46:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_unregister_iommu_driver [2019-10-13 22:46:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_alloc_group_minor [2019-10-13 22:46:42,199 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_get [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_release [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_create_group [2019-10-13 22:46:42,200 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_release [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_get [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_iommu [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_minor [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_create_device [2019-10-13 22:46:42,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_release [2019-10-13 22:46:42,202 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2019-10-13 22:46:42,203 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2019-10-13 22:46:42,203 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2019-10-13 22:46:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_whitelisted_driver [2019-10-13 22:46:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2019-10-13 22:46:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_add_dev [2019-10-13 22:46:42,204 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_verify [2019-10-13 22:46:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_iommu_group_notifier [2019-10-13 22:46:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_add_group_dev [2019-10-13 22:46:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get_from_dev [2019-10-13 22:46:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_data [2019-10-13 22:46:42,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_present [2019-10-13 22:46:42,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_del_group_dev [2019-10-13 22:46:42,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_container_attach_groups [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2019-10-13 22:46:42,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unset_container [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2019-10-13 22:46:42,208 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_set_container [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device_fd [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2019-10-13 22:46:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2019-10-13 22:46:42,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_external_user [2019-10-13 22:46:42,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2019-10-13 22:46:42,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_user_iommu_id [2019-10-13 22:46:42,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_check_extension [2019-10-13 22:46:42,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_devnode [2019-10-13 22:46:42,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_init [2019-10-13 22:46:42,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_cleanup [2019-10-13 22:46:42,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 22:46:42,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2019-10-13 22:46:42,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-13 22:46:42,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:46:42,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_7 [2019-10-13 22:46:42,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_8 [2019-10-13 22:46:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_9 [2019-10-13 22:46:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_10 [2019-10-13 22:46:42,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-10-13 22:46:42,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_12 [2019-10-13 22:46:42,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_13 [2019-10-13 22:46:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_14 [2019-10-13 22:46:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_15 [2019-10-13 22:46:42,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_16 [2019-10-13 22:46:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:46:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:46:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:46:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:46:42,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:46:42,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 22:46:42,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 22:46:42,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 22:46:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 22:46:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __fdget [2019-10-13 22:46:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2019-10-13 22:46:42,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 22:46:42,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 22:46:42,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 22:46:42,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 22:46:42,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure anon_inode_getfile [2019-10-13 22:46:42,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-13 22:46:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-13 22:46:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-13 22:46:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 22:46:42,235 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure fd_install [2019-10-13 22:46:42,236 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unused_fd_flags [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-13 22:46:42,237 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_for_each_dev [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_get [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_register_notifier [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_unregister_notifier [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-13 22:46:42,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 22:46:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unused_fd [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-13 22:46:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:46:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:46:42,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:46:42,242 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:46:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 22:46:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 22:46:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 22:46:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2019-10-13 22:46:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_if_positive [2019-10-13 22:46:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 22:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 22:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 22:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-13 22:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-13 22:46:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-13 22:46:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2019-10-13 22:46:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-13 22:46:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:46:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-13 22:46:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-13 22:46:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_7 [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-13 22:46:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_8 [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_9 [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_10 [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid_nr [2019-10-13 22:46:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:46:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:46:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_13 [2019-10-13 22:46:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_15 [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-13 22:46:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 22:46:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure __fdget [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure __to_fd [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure fdget [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_unused_fd_flags [2019-10-13 22:46:42,268 INFO L130 BoogieDeclarations]: Found specification of procedure put_unused_fd [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure fd_install [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure anon_inode_getfile [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_for_each_dev [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_get [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_register_notifier [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_unregister_notifier [2019-10-13 22:46:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_12 [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_14 [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_16 [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:46:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_add_group_dev [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_del_group_dev [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get_from_dev [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2019-10-13 22:46:42,271 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_data [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_register_iommu_driver [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_unregister_iommu_driver [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_external_user [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_user_iommu_id [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_check_extension [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_alloc_group_minor [2019-10-13 22:46:42,272 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_iommu_group_notifier [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_get [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_release [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2019-10-13 22:46:42,273 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_create_group [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_release [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_get [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_iommu [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_minor [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_create_device [2019-10-13 22:46:42,274 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_release [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_whitelisted_driver [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_add_dev [2019-10-13 22:46:42,275 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_verify [2019-10-13 22:46:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_present [2019-10-13 22:46:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 22:46:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2019-10-13 22:46:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 22:46:42,276 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_container_attach_groups [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2019-10-13 22:46:42,277 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unset_container [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_set_container [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2019-10-13 22:46:42,278 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device_fd [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2019-10-13 22:46:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_devnode [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_init [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_cleanup [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-13 22:46:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 22:46:42,281 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:46:42,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:46:42,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:46:42,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:46:43,667 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:46:48,020 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 22:46:51,809 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:46:51,809 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:46:51,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:46:51 BoogieIcfgContainer [2019-10-13 22:46:51,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:46:51,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:46:51,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:46:51,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:46:51,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:46:38" (1/3) ... [2019-10-13 22:46:51,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a0c95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:46:51, skipping insertion in model container [2019-10-13 22:46:51,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:46:41" (2/3) ... [2019-10-13 22:46:51,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a0c95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:46:51, skipping insertion in model container [2019-10-13 22:46:51,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:46:51" (3/3) ... [2019-10-13 22:46:51,825 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-10-13 22:46:51,835 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:46:51,848 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:46:51,859 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:46:51,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:46:51,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:46:51,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:46:51,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:46:51,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:46:51,898 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:46:51,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:46:51,898 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:46:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states. [2019-10-13 22:46:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-13 22:46:51,989 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:51,991 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:46:51,993 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:51,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash 801380073, now seen corresponding path program 1 times [2019-10-13 22:46:52,006 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:52,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860955053] [2019-10-13 22:46:52,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:52,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:52,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:46:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2019-10-13 22:46:53,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860955053] [2019-10-13 22:46:53,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:46:53,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:46:53,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484270350] [2019-10-13 22:46:53,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:46:53,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:46:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:46:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:53,131 INFO L87 Difference]: Start difference. First operand 1643 states. Second operand 3 states. [2019-10-13 22:46:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:46:54,294 INFO L93 Difference]: Finished difference Result 3543 states and 4808 transitions. [2019-10-13 22:46:54,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:46:54,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-10-13 22:46:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:46:54,347 INFO L225 Difference]: With dead ends: 3543 [2019-10-13 22:46:54,347 INFO L226 Difference]: Without dead ends: 2326 [2019-10-13 22:46:54,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:54,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2019-10-13 22:46:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2323. [2019-10-13 22:46:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2323 states. [2019-10-13 22:46:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3040 transitions. [2019-10-13 22:46:54,632 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3040 transitions. Word has length 286 [2019-10-13 22:46:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:46:54,638 INFO L462 AbstractCegarLoop]: Abstraction has 2323 states and 3040 transitions. [2019-10-13 22:46:54,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:46:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3040 transitions. [2019-10-13 22:46:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-13 22:46:54,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:54,655 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:46:54,655 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash 80821531, now seen corresponding path program 1 times [2019-10-13 22:46:54,656 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:54,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099392795] [2019-10-13 22:46:54,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:54,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:54,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:46:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2019-10-13 22:46:55,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099392795] [2019-10-13 22:46:55,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:46:55,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:46:55,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084136738] [2019-10-13 22:46:55,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:46:55,313 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:46:55,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:46:55,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:55,314 INFO L87 Difference]: Start difference. First operand 2323 states and 3040 transitions. Second operand 3 states. [2019-10-13 22:46:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:46:55,520 INFO L93 Difference]: Finished difference Result 6820 states and 9127 transitions. [2019-10-13 22:46:55,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:46:55,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 296 [2019-10-13 22:46:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:46:55,554 INFO L225 Difference]: With dead ends: 6820 [2019-10-13 22:46:55,554 INFO L226 Difference]: Without dead ends: 4529 [2019-10-13 22:46:55,566 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:55,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2019-10-13 22:46:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4517. [2019-10-13 22:46:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4517 states. [2019-10-13 22:46:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 5960 transitions. [2019-10-13 22:46:55,829 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 5960 transitions. Word has length 296 [2019-10-13 22:46:55,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:46:55,830 INFO L462 AbstractCegarLoop]: Abstraction has 4517 states and 5960 transitions. [2019-10-13 22:46:55,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:46:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 5960 transitions. [2019-10-13 22:46:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-10-13 22:46:55,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:55,845 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:46:55,846 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:55,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1082904808, now seen corresponding path program 1 times [2019-10-13 22:46:55,846 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:55,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223217376] [2019-10-13 22:46:55,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:55,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:55,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:46:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2019-10-13 22:46:56,511 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223217376] [2019-10-13 22:46:56,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:46:56,512 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:46:56,512 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051440101] [2019-10-13 22:46:56,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:46:56,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:46:56,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:46:56,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:56,514 INFO L87 Difference]: Start difference. First operand 4517 states and 5960 transitions. Second operand 3 states. [2019-10-13 22:46:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:46:56,833 INFO L93 Difference]: Finished difference Result 8889 states and 11702 transitions. [2019-10-13 22:46:56,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:46:56,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2019-10-13 22:46:56,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:46:56,869 INFO L225 Difference]: With dead ends: 8889 [2019-10-13 22:46:56,869 INFO L226 Difference]: Without dead ends: 4445 [2019-10-13 22:46:56,888 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 22:46:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2019-10-13 22:46:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 4445. [2019-10-13 22:46:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4445 states. [2019-10-13 22:46:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 5836 transitions. [2019-10-13 22:46:57,134 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 5836 transitions. Word has length 310 [2019-10-13 22:46:57,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:46:57,136 INFO L462 AbstractCegarLoop]: Abstraction has 4445 states and 5836 transitions. [2019-10-13 22:46:57,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:46:57,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 5836 transitions. [2019-10-13 22:46:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2019-10-13 22:46:57,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:57,146 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:57,147 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:57,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1143509776, now seen corresponding path program 1 times [2019-10-13 22:46:57,148 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:57,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974255476] [2019-10-13 22:46:57,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:57,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:57,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:46:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2019-10-13 22:46:57,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974255476] [2019-10-13 22:46:57,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:46:57,610 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:46:57,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878995624] [2019-10-13 22:46:57,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:46:57,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:46:57,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:46:57,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:57,611 INFO L87 Difference]: Start difference. First operand 4445 states and 5836 transitions. Second operand 3 states. [2019-10-13 22:46:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:46:58,074 INFO L93 Difference]: Finished difference Result 8673 states and 11326 transitions. [2019-10-13 22:46:58,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:46:58,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2019-10-13 22:46:58,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:46:58,101 INFO L225 Difference]: With dead ends: 8673 [2019-10-13 22:46:58,102 INFO L226 Difference]: Without dead ends: 4301 [2019-10-13 22:46:58,119 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 22:46:58,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2019-10-13 22:46:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4301. [2019-10-13 22:46:58,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4301 states. [2019-10-13 22:46:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 5584 transitions. [2019-10-13 22:46:58,348 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 5584 transitions. Word has length 306 [2019-10-13 22:46:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:46:58,349 INFO L462 AbstractCegarLoop]: Abstraction has 4301 states and 5584 transitions. [2019-10-13 22:46:58,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:46:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 5584 transitions. [2019-10-13 22:46:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2019-10-13 22:46:58,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:58,359 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:58,359 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:58,360 INFO L82 PathProgramCache]: Analyzing trace with hash 875527567, now seen corresponding path program 1 times [2019-10-13 22:46:58,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:58,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101008500] [2019-10-13 22:46:58,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:58,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:58,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:46:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2019-10-13 22:46:58,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101008500] [2019-10-13 22:46:58,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:46:58,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:46:58,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678903433] [2019-10-13 22:46:58,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:46:58,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:46:58,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:46:58,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:46:58,883 INFO L87 Difference]: Start difference. First operand 4301 states and 5584 transitions. Second operand 3 states. [2019-10-13 22:46:59,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:46:59,289 INFO L93 Difference]: Finished difference Result 6692 states and 8653 transitions. [2019-10-13 22:46:59,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:46:59,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2019-10-13 22:46:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:46:59,309 INFO L225 Difference]: With dead ends: 6692 [2019-10-13 22:46:59,309 INFO L226 Difference]: Without dead ends: 2464 [2019-10-13 22:46:59,326 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 22:46:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2019-10-13 22:46:59,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2405. [2019-10-13 22:46:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2405 states. [2019-10-13 22:46:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3095 transitions. [2019-10-13 22:46:59,452 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3095 transitions. Word has length 322 [2019-10-13 22:46:59,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:46:59,454 INFO L462 AbstractCegarLoop]: Abstraction has 2405 states and 3095 transitions. [2019-10-13 22:46:59,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:46:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3095 transitions. [2019-10-13 22:46:59,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2019-10-13 22:46:59,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:46:59,466 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:46:59,466 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:46:59,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:46:59,466 INFO L82 PathProgramCache]: Analyzing trace with hash -464388827, now seen corresponding path program 1 times [2019-10-13 22:46:59,467 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:46:59,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788972458] [2019-10-13 22:46:59,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:59,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:46:59,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:46:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1244 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2019-10-13 22:47:00,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788972458] [2019-10-13 22:47:00,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:00,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:47:00,158 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252677714] [2019-10-13 22:47:00,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:47:00,158 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:00,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:47:00,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:47:00,159 INFO L87 Difference]: Start difference. First operand 2405 states and 3095 transitions. Second operand 5 states. [2019-10-13 22:47:01,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:01,785 INFO L93 Difference]: Finished difference Result 4733 states and 6082 transitions. [2019-10-13 22:47:01,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:47:01,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2019-10-13 22:47:01,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:01,802 INFO L225 Difference]: With dead ends: 4733 [2019-10-13 22:47:01,802 INFO L226 Difference]: Without dead ends: 2414 [2019-10-13 22:47:01,812 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:47:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2019-10-13 22:47:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2409. [2019-10-13 22:47:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2409 states. [2019-10-13 22:47:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3098 transitions. [2019-10-13 22:47:01,941 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3098 transitions. Word has length 382 [2019-10-13 22:47:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:01,942 INFO L462 AbstractCegarLoop]: Abstraction has 2409 states and 3098 transitions. [2019-10-13 22:47:01,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:47:01,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3098 transitions. [2019-10-13 22:47:01,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2019-10-13 22:47:01,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:01,962 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:01,962 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:01,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:01,963 INFO L82 PathProgramCache]: Analyzing trace with hash 559704062, now seen corresponding path program 1 times [2019-10-13 22:47:01,963 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:01,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589196073] [2019-10-13 22:47:01,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:01,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:01,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2019-10-13 22:47:03,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589196073] [2019-10-13 22:47:03,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:03,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:03,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258324013] [2019-10-13 22:47:03,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:03,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:03,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:03,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:03,287 INFO L87 Difference]: Start difference. First operand 2409 states and 3098 transitions. Second operand 3 states. [2019-10-13 22:47:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:05,743 INFO L93 Difference]: Finished difference Result 5920 states and 7612 transitions. [2019-10-13 22:47:05,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:05,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 439 [2019-10-13 22:47:05,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:05,771 INFO L225 Difference]: With dead ends: 5920 [2019-10-13 22:47:05,772 INFO L226 Difference]: Without dead ends: 3601 [2019-10-13 22:47:05,786 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2019-10-13 22:47:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3540. [2019-10-13 22:47:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2019-10-13 22:47:06,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 4543 transitions. [2019-10-13 22:47:06,033 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 4543 transitions. Word has length 439 [2019-10-13 22:47:06,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:06,035 INFO L462 AbstractCegarLoop]: Abstraction has 3540 states and 4543 transitions. [2019-10-13 22:47:06,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 4543 transitions. [2019-10-13 22:47:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2019-10-13 22:47:06,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:06,060 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:06,061 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:06,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1721567402, now seen corresponding path program 1 times [2019-10-13 22:47:06,062 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:06,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41147195] [2019-10-13 22:47:06,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:06,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:47:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:47:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2019-10-13 22:47:06,695 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41147195] [2019-10-13 22:47:06,695 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:47:06,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:47:06,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527208490] [2019-10-13 22:47:06,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:47:06,697 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:47:06,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:47:06,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:06,698 INFO L87 Difference]: Start difference. First operand 3540 states and 4543 transitions. Second operand 3 states. [2019-10-13 22:47:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:47:06,886 INFO L93 Difference]: Finished difference Result 7018 states and 9220 transitions. [2019-10-13 22:47:06,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:47:06,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 438 [2019-10-13 22:47:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:47:06,921 INFO L225 Difference]: With dead ends: 7018 [2019-10-13 22:47:06,921 INFO L226 Difference]: Without dead ends: 3568 [2019-10-13 22:47:06,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:47:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3568 states. [2019-10-13 22:47:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3568 to 3552. [2019-10-13 22:47:07,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3552 states. [2019-10-13 22:47:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 4559 transitions. [2019-10-13 22:47:07,101 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 4559 transitions. Word has length 438 [2019-10-13 22:47:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:47:07,102 INFO L462 AbstractCegarLoop]: Abstraction has 3552 states and 4559 transitions. [2019-10-13 22:47:07,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:47:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 4559 transitions. [2019-10-13 22:47:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2019-10-13 22:47:07,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:47:07,119 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:47:07,120 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:47:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:47:07,120 INFO L82 PathProgramCache]: Analyzing trace with hash 191845876, now seen corresponding path program 1 times [2019-10-13 22:47:07,120 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:47:07,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470192156] [2019-10-13 22:47:07,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:07,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:47:07,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY