java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:55:47,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:55:47,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:55:47,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:55:47,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:55:47,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:55:47,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:55:47,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:55:47,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:55:47,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:55:47,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:55:47,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:55:47,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:55:47,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:55:47,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:55:47,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:55:47,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:55:47,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:55:47,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:55:47,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:55:47,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:55:47,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:55:47,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:55:47,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:55:47,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:55:47,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:55:47,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:55:47,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:55:47,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:55:47,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:55:47,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:55:47,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:55:47,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:55:47,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:55:47,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:55:47,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:55:47,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:55:47,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:55:47,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:55:47,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:55:47,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:55:47,112 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 20:55:47,126 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:55:47,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:55:47,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:55:47,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:55:47,128 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:55:47,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:55:47,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:55:47,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:55:47,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:55:47,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:55:47,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:55:47,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:55:47,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:55:47,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:55:47,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:55:47,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:55:47,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:55:47,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:55:47,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:55:47,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:55:47,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:55:47,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:55:47,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:55:47,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:55:47,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:55:47,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:55:47,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:55:47,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:55:47,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:55:47,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:55:47,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:55:47,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:55:47,443 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:55:47,443 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:55:47,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-10-13 20:55:47,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c461d17a/0daa2eff801d4fa5838b6ad47d685c12/FLAG0f2e73aa8 [2019-10-13 20:55:48,373 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:55:48,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--vfio--vfio.ko-entry_point.cil.out.i [2019-10-13 20:55:48,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c461d17a/0daa2eff801d4fa5838b6ad47d685c12/FLAG0f2e73aa8 [2019-10-13 20:55:48,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c461d17a/0daa2eff801d4fa5838b6ad47d685c12 [2019-10-13 20:55:48,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:55:48,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:55:48,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:55:48,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:55:48,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:55:48,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:48" (1/1) ... [2019-10-13 20:55:48,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae14eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:48, skipping insertion in model container [2019-10-13 20:55:48,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:55:48" (1/1) ... [2019-10-13 20:55:48,886 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:55:49,009 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:55:50,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:55:50,896 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:55:51,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:55:51,608 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:55:51,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51 WrapperNode [2019-10-13 20:55:51,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:55:51,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:55:51,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:55:51,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:55:51,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (1/1) ... [2019-10-13 20:55:51,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:55:51,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:55:51,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:55:51,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:55:51,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (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 20:55:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:55:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:55:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:55:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:55:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 20:55:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:55:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:55:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~$Pointer$ [2019-10-13 20:55:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 20:55:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:55:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-13 20:55:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 20:55:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 20:55:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 20:55:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:55:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 20:55:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 20:55:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2019-10-13 20:55:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 20:55:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2019-10-13 20:55:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_if_positive [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2019-10-13 20:55:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2019-10-13 20:55:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2019-10-13 20:55:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid_nr [2019-10-13 20:55:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:55:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:55:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2019-10-13 20:55:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure fdput [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __to_fd [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure fdget [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 20:55:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_register_iommu_driver [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_unregister_iommu_driver [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_alloc_group_minor [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_free_group_minor [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_get [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_release [2019-10-13 20:55:52,071 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_container_put [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unlock_and_free [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_create_group [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_release [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_get [2019-10-13 20:55:52,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_iommu [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_from_minor [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_create_device [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_release [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get [2019-10-13 20:55:52,073 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_whitelisted_driver [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_viable [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_add_dev [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_nb_verify [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_iommu_group_notifier [2019-10-13 20:55:52,074 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_add_group_dev [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get_from_dev [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_data [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_dev_present [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_del_group_dev [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_check_extension [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_container_attach_groups [2019-10-13 20:55:52,075 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_ioctl_set_iommu [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_unl_ioctl [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_compat_ioctl [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_open [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_release [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_read [2019-10-13 20:55:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_write [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fops_mmap [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __vfio_group_unset_container [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_unset_container [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_try_dissolve_container [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_set_container [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_viable [2019-10-13 20:55:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_device_fd [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_unl_ioctl [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_compat_ioctl [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_open [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_fops_release [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_release [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_unl_ioctl [2019-10-13 20:55:52,078 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_read [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_write [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_mmap [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_fops_compat_ioctl [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_get_external_user [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_group_put_external_user [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_user_iommu_id [2019-10-13 20:55:52,079 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_external_check_extension [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_devnode [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_init [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_cleanup [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2019-10-13 20:55:52,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2019-10-13 20:55:52,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_7 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_8 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_9 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_10 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_11 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_12 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_13 [2019-10-13 20:55:52,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_14 [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_15 [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_16 [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 20:55:52,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 20:55:52,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __fdget [2019-10-13 20:55:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:55:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure anon_inode_getfile [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-10-13 20:55:52,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-13 20:55:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure fd_install [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unused_fd_flags [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2019-10-13 20:55:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_for_each_dev [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_get [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_id [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_register_notifier [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_unregister_notifier [2019-10-13 20:55:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_1 [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:55:52,091 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unused_fd [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-13 20:55:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:55:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:55:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-13 20:55:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2019-10-13 20:55:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 20:55:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2019-10-13 20:55:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 20:55:52,098 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2019-10-13 20:55:52,099 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_if_positive [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:55:52,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 20:55:52,101 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-13 20:55:52,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2019-10-13 20:55:52,103 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_7 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_8 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_9 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_10 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_11 [2019-10-13 20:55:52,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid_nr [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:55:52,105 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:55:52,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:55:52,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_13 [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-10-13 20:55:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_15 [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 20:55:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 20:55:52,110 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure fdput [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure __fdget [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure __to_fd [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure fdget [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure get_unused_fd_flags [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure put_unused_fd [2019-10-13 20:55:52,111 INFO L130 BoogieDeclarations]: Found specification of procedure fd_install [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure anon_inode_getfile [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_for_each_dev [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_get [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_register_notifier [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_unregister_notifier [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_id [2019-10-13 20:55:52,112 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_12 [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_14 [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_16 [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 20:55:52,113 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_add_group_dev [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_del_group_dev [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get_from_dev [2019-10-13 20:55:52,114 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_data [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_register_iommu_driver [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_unregister_iommu_driver [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_external_user [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put_external_user [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_user_iommu_id [2019-10-13 20:55:52,115 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_external_check_extension [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_alloc_group_minor [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_free_group_minor [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_iommu_group_notifier [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_get [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_release [2019-10-13 20:55:52,116 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_container_put [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unlock_and_free [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_create_group [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_release [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_put [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_get [2019-10-13 20:55:52,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_iommu [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_from_minor [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_create_device [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_release [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_whitelisted_driver [2019-10-13 20:55:52,118 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_viable [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_add_dev [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_nb_verify [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_dev_present [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_check_extension [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_container_attach_groups [2019-10-13 20:55:52,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_ioctl_set_iommu [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~$Pointer$ [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_unl_ioctl [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_compat_ioctl [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_open [2019-10-13 20:55:52,120 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_release [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_read [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_write [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fops_mmap [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure __vfio_group_unset_container [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_unset_container [2019-10-13 20:55:52,121 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_try_dissolve_container [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_set_container [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_viable [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_get_device_fd [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_unl_ioctl [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_compat_ioctl [2019-10-13 20:55:52,122 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_open [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_group_fops_release [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_release [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_unl_ioctl [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_read [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_write [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_mmap [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_fops_compat_ioctl [2019-10-13 20:55:52,123 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_devnode [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_init [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_cleanup [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_1 [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:55:52,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:55:52,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:55:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:55:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:55:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:55:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:55:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:55:53,348 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:55:57,368 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 20:55:57,861 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:55:57,862 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:55:57,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:57 BoogieIcfgContainer [2019-10-13 20:55:57,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:55:57,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:55:57,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:55:57,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:55:57,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:55:48" (1/3) ... [2019-10-13 20:55:57,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17cea3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:57, skipping insertion in model container [2019-10-13 20:55:57,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:55:51" (2/3) ... [2019-10-13 20:55:57,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17cea3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:55:57, skipping insertion in model container [2019-10-13 20:55:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:55:57" (3/3) ... [2019-10-13 20:55:57,874 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 20:55:57,885 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:55:57,899 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:55:57,911 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:55:57,954 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:55:57,954 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:55:57,954 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:55:57,954 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:55:57,954 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:55:57,954 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:55:57,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:55:57,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:55:58,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states. [2019-10-13 20:55:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2019-10-13 20:55:58,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:55:58,068 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 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] [2019-10-13 20:55:58,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:55:58,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:55:58,078 INFO L82 PathProgramCache]: Analyzing trace with hash -198137817, now seen corresponding path program 1 times [2019-10-13 20:55:58,087 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:55:58,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287269117] [2019-10-13 20:55:58,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:55:58,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:55:58,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:55:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:55:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2019-10-13 20:55:59,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287269117] [2019-10-13 20:55:59,212 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:55:59,213 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:55:59,213 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444701850] [2019-10-13 20:55:59,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:55:59,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:55:59,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:55:59,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:55:59,237 INFO L87 Difference]: Start difference. First operand 1853 states. Second operand 3 states. [2019-10-13 20:56:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:00,223 INFO L93 Difference]: Finished difference Result 4006 states and 5355 transitions. [2019-10-13 20:56:00,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:00,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2019-10-13 20:56:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:00,275 INFO L225 Difference]: With dead ends: 4006 [2019-10-13 20:56:00,275 INFO L226 Difference]: Without dead ends: 2628 [2019-10-13 20:56:00,290 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 20:56:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2019-10-13 20:56:00,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2625. [2019-10-13 20:56:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2625 states. [2019-10-13 20:56:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 3398 transitions. [2019-10-13 20:56:00,553 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 3398 transitions. Word has length 350 [2019-10-13 20:56:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:00,555 INFO L462 AbstractCegarLoop]: Abstraction has 2625 states and 3398 transitions. [2019-10-13 20:56:00,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 3398 transitions. [2019-10-13 20:56:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2019-10-13 20:56:00,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:00,569 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 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] [2019-10-13 20:56:00,570 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:00,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:00,570 INFO L82 PathProgramCache]: Analyzing trace with hash 908464369, now seen corresponding path program 1 times [2019-10-13 20:56:00,571 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:00,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34518177] [2019-10-13 20:56:00,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:00,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:00,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2019-10-13 20:56:01,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34518177] [2019-10-13 20:56:01,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:01,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:01,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906016328] [2019-10-13 20:56:01,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:01,756 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:01,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:01,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:01,757 INFO L87 Difference]: Start difference. First operand 2625 states and 3398 transitions. Second operand 3 states. [2019-10-13 20:56:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:02,032 INFO L93 Difference]: Finished difference Result 5134 states and 6629 transitions. [2019-10-13 20:56:02,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:02,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 374 [2019-10-13 20:56:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:02,056 INFO L225 Difference]: With dead ends: 5134 [2019-10-13 20:56:02,056 INFO L226 Difference]: Without dead ends: 2587 [2019-10-13 20:56:02,069 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 20:56:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2019-10-13 20:56:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2587. [2019-10-13 20:56:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2587 states. [2019-10-13 20:56:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3332 transitions. [2019-10-13 20:56:02,242 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3332 transitions. Word has length 374 [2019-10-13 20:56:02,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:02,244 INFO L462 AbstractCegarLoop]: Abstraction has 2587 states and 3332 transitions. [2019-10-13 20:56:02,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:02,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3332 transitions. [2019-10-13 20:56:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2019-10-13 20:56:02,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:02,256 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:56:02,256 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash -234996711, now seen corresponding path program 1 times [2019-10-13 20:56:02,257 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:02,257 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197181280] [2019-10-13 20:56:02,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:02,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:02,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2019-10-13 20:56:02,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197181280] [2019-10-13 20:56:02,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:02,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:02,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813650622] [2019-10-13 20:56:02,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:02,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:02,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:02,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:02,922 INFO L87 Difference]: Start difference. First operand 2587 states and 3332 transitions. Second operand 3 states. [2019-10-13 20:56:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:03,234 INFO L93 Difference]: Finished difference Result 5022 states and 6435 transitions. [2019-10-13 20:56:03,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:03,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2019-10-13 20:56:03,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:03,275 INFO L225 Difference]: With dead ends: 5022 [2019-10-13 20:56:03,275 INFO L226 Difference]: Without dead ends: 2513 [2019-10-13 20:56:03,289 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 20:56:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2019-10-13 20:56:03,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2513. [2019-10-13 20:56:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2513 states. [2019-10-13 20:56:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 3204 transitions. [2019-10-13 20:56:03,463 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 3204 transitions. Word has length 368 [2019-10-13 20:56:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:03,465 INFO L462 AbstractCegarLoop]: Abstraction has 2513 states and 3204 transitions. [2019-10-13 20:56:03,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 3204 transitions. [2019-10-13 20:56:03,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-13 20:56:03,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:03,485 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 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] [2019-10-13 20:56:03,485 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:03,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:03,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1305649067, now seen corresponding path program 1 times [2019-10-13 20:56:03,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:03,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992211341] [2019-10-13 20:56:03,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:03,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:03,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2019-10-13 20:56:03,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992211341] [2019-10-13 20:56:03,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:03,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:56:03,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887893433] [2019-10-13 20:56:03,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:56:03,996 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:03,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:56:03,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:56:03,997 INFO L87 Difference]: Start difference. First operand 2513 states and 3204 transitions. Second operand 5 states. [2019-10-13 20:56:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:05,367 INFO L93 Difference]: Finished difference Result 4957 states and 6314 transitions. [2019-10-13 20:56:05,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:56:05,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 363 [2019-10-13 20:56:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:05,386 INFO L225 Difference]: With dead ends: 4957 [2019-10-13 20:56:05,386 INFO L226 Difference]: Without dead ends: 2522 [2019-10-13 20:56:05,396 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 20:56:05,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2019-10-13 20:56:05,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2517. [2019-10-13 20:56:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2019-10-13 20:56:05,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3207 transitions. [2019-10-13 20:56:05,569 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3207 transitions. Word has length 363 [2019-10-13 20:56:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:05,571 INFO L462 AbstractCegarLoop]: Abstraction has 2517 states and 3207 transitions. [2019-10-13 20:56:05,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:56:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3207 transitions. [2019-10-13 20:56:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-13 20:56:05,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:05,583 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 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] [2019-10-13 20:56:05,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:05,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1362907369, now seen corresponding path program 1 times [2019-10-13 20:56:05,584 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:05,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194697015] [2019-10-13 20:56:05,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:05,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:05,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1614 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2019-10-13 20:56:06,087 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194697015] [2019-10-13 20:56:06,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:06,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:06,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292005329] [2019-10-13 20:56:06,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:06,090 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:06,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:06,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:06,091 INFO L87 Difference]: Start difference. First operand 2517 states and 3207 transitions. Second operand 3 states. [2019-10-13 20:56:06,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:06,339 INFO L93 Difference]: Finished difference Result 7392 states and 9596 transitions. [2019-10-13 20:56:06,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:06,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 363 [2019-10-13 20:56:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:06,378 INFO L225 Difference]: With dead ends: 7392 [2019-10-13 20:56:06,378 INFO L226 Difference]: Without dead ends: 4899 [2019-10-13 20:56:06,395 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 20:56:06,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4899 states. [2019-10-13 20:56:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4899 to 4895. [2019-10-13 20:56:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4895 states. [2019-10-13 20:56:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4895 states to 4895 states and 6278 transitions. [2019-10-13 20:56:06,685 INFO L78 Accepts]: Start accepts. Automaton has 4895 states and 6278 transitions. Word has length 363 [2019-10-13 20:56:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:06,687 INFO L462 AbstractCegarLoop]: Abstraction has 4895 states and 6278 transitions. [2019-10-13 20:56:06,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 4895 states and 6278 transitions. [2019-10-13 20:56:06,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2019-10-13 20:56:06,705 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:06,706 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 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] [2019-10-13 20:56:06,706 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:06,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:06,707 INFO L82 PathProgramCache]: Analyzing trace with hash 593223237, now seen corresponding path program 1 times [2019-10-13 20:56:06,707 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:06,708 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897766241] [2019-10-13 20:56:06,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:06,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:06,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2019-10-13 20:56:07,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897766241] [2019-10-13 20:56:07,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:07,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:07,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444027985] [2019-10-13 20:56:07,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:07,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:07,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:07,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:07,238 INFO L87 Difference]: Start difference. First operand 4895 states and 6278 transitions. Second operand 3 states. [2019-10-13 20:56:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:07,549 INFO L93 Difference]: Finished difference Result 7635 states and 9748 transitions. [2019-10-13 20:56:07,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:07,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 387 [2019-10-13 20:56:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:07,570 INFO L225 Difference]: With dead ends: 7635 [2019-10-13 20:56:07,571 INFO L226 Difference]: Without dead ends: 2818 [2019-10-13 20:56:07,592 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 20:56:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2019-10-13 20:56:07,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2746. [2019-10-13 20:56:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2746 states. [2019-10-13 20:56:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3487 transitions. [2019-10-13 20:56:07,722 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3487 transitions. Word has length 387 [2019-10-13 20:56:07,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:07,723 INFO L462 AbstractCegarLoop]: Abstraction has 2746 states and 3487 transitions. [2019-10-13 20:56:07,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3487 transitions. [2019-10-13 20:56:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2019-10-13 20:56:07,742 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:07,742 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:56:07,743 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:07,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:07,743 INFO L82 PathProgramCache]: Analyzing trace with hash -541625478, now seen corresponding path program 1 times [2019-10-13 20:56:07,744 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:07,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018403527] [2019-10-13 20:56:07,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:07,744 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:07,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1829 trivial. 0 not checked. [2019-10-13 20:56:08,524 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018403527] [2019-10-13 20:56:08,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:56:08,525 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:56:08,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900248878] [2019-10-13 20:56:08,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:08,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:08,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:08,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:56:08,527 INFO L87 Difference]: Start difference. First operand 2746 states and 3487 transitions. Second operand 3 states. [2019-10-13 20:56:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:08,669 INFO L93 Difference]: Finished difference Result 5411 states and 7015 transitions. [2019-10-13 20:56:08,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:08,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 529 [2019-10-13 20:56:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:08,688 INFO L225 Difference]: With dead ends: 5411 [2019-10-13 20:56:08,688 INFO L226 Difference]: Without dead ends: 2760 [2019-10-13 20:56:08,700 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 20:56:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2019-10-13 20:56:08,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2752. [2019-10-13 20:56:08,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2019-10-13 20:56:08,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3495 transitions. [2019-10-13 20:56:08,823 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3495 transitions. Word has length 529 [2019-10-13 20:56:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:08,824 INFO L462 AbstractCegarLoop]: Abstraction has 2752 states and 3495 transitions. [2019-10-13 20:56:08,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:08,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3495 transitions. [2019-10-13 20:56:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2019-10-13 20:56:08,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:08,839 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:56:08,840 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:08,840 INFO L82 PathProgramCache]: Analyzing trace with hash -412594588, now seen corresponding path program 1 times [2019-10-13 20:56:08,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:08,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103008391] [2019-10-13 20:56:08,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:08,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:08,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1824 trivial. 0 not checked. [2019-10-13 20:56:09,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103008391] [2019-10-13 20:56:09,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971275084] [2019-10-13 20:56:09,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:56:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:10,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 20:56:10,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:56:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1631 trivial. 0 not checked. [2019-10-13 20:56:11,196 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:56:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1824 trivial. 0 not checked. [2019-10-13 20:56:11,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 20:56:11,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2019-10-13 20:56:11,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856334731] [2019-10-13 20:56:11,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:56:11,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:56:11,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:56:11,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:56:11,881 INFO L87 Difference]: Start difference. First operand 2752 states and 3495 transitions. Second operand 3 states. [2019-10-13 20:56:12,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:56:12,239 INFO L93 Difference]: Finished difference Result 6766 states and 8600 transitions. [2019-10-13 20:56:12,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:56:12,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 521 [2019-10-13 20:56:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:56:12,266 INFO L225 Difference]: With dead ends: 6766 [2019-10-13 20:56:12,266 INFO L226 Difference]: Without dead ends: 4109 [2019-10-13 20:56:12,278 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1041 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:56:12,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2019-10-13 20:56:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4039. [2019-10-13 20:56:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4039 states. [2019-10-13 20:56:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 5138 transitions. [2019-10-13 20:56:12,487 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 5138 transitions. Word has length 521 [2019-10-13 20:56:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:56:12,488 INFO L462 AbstractCegarLoop]: Abstraction has 4039 states and 5138 transitions. [2019-10-13 20:56:12,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:56:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 5138 transitions. [2019-10-13 20:56:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2019-10-13 20:56:12,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:56:12,512 INFO L380 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:56:12,725 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:56:12,726 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:56:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:56:12,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1040590151, now seen corresponding path program 1 times [2019-10-13 20:56:12,727 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:56:12,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492409638] [2019-10-13 20:56:12,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:12,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:56:12,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:56:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 1733 trivial. 0 not checked. [2019-10-13 20:56:15,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492409638] [2019-10-13 20:56:15,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590656788] [2019-10-13 20:56:15,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:56:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:56:17,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 5658 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-13 20:56:17,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:56:17,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:56:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2019-10-13 20:56:17,983 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:56:18,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms