java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-17 20:46:22,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-17 20:46:22,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-17 20:46:22,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-17 20:46:22,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-17 20:46:22,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-17 20:46:22,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-17 20:46:22,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-17 20:46:22,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-17 20:46:22,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-17 20:46:22,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-17 20:46:22,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-17 20:46:22,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-17 20:46:22,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-17 20:46:22,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-17 20:46:22,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-17 20:46:22,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-17 20:46:22,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-17 20:46:22,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-17 20:46:22,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-17 20:46:22,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-17 20:46:22,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-17 20:46:22,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-17 20:46:22,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-17 20:46:22,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-17 20:46:22,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-17 20:46:22,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-17 20:46:22,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-17 20:46:22,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-17 20:46:22,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-17 20:46:22,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-17 20:46:22,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-17 20:46:22,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-17 20:46:22,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-17 20:46:22,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-17 20:46:22,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-17 20:46:22,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-17 20:46:22,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-17 20:46:22,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-17 20:46:22,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-17 20:46:22,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-17 20:46:22,722 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 [2019-09-17 20:46:22,736 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-17 20:46:22,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-17 20:46:22,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-17 20:46:22,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-17 20:46:22,738 INFO L138 SettingsManager]: * Use SBE=true [2019-09-17 20:46:22,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-17 20:46:22,738 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-17 20:46:22,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-17 20:46:22,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-17 20:46:22,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-17 20:46:22,740 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-17 20:46:22,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-17 20:46:22,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-17 20:46:22,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-17 20:46:22,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-17 20:46:22,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-17 20:46:22,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 20:46:22,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-17 20:46:22,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-17 20:46:22,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-17 20:46:22,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-17 20:46:22,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-17 20:46:22,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-17 20:46:22,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-17 20:46:22,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-17 20:46:22,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-17 20:46:22,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-17 20:46:22,799 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-17 20:46:22,799 INFO L275 PluginConnector]: CDTParser initialized [2019-09-17 20:46:22,800 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-17 20:46:22,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2452c25/971c0e6a932149808ad685ce72829ba6/FLAG88ea184a8 [2019-09-17 20:46:23,522 INFO L306 CDTParser]: Found 1 translation units. [2019-09-17 20:46:23,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-17 20:46:23,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2452c25/971c0e6a932149808ad685ce72829ba6/FLAG88ea184a8 [2019-09-17 20:46:23,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c2452c25/971c0e6a932149808ad685ce72829ba6 [2019-09-17 20:46:23,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-17 20:46:23,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-17 20:46:23,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-17 20:46:23,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-17 20:46:23,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-17 20:46:23,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 08:46:23" (1/1) ... [2019-09-17 20:46:23,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388d581e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:23, skipping insertion in model container [2019-09-17 20:46:23,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 08:46:23" (1/1) ... [2019-09-17 20:46:23,703 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-17 20:46:23,799 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-17 20:46:24,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 20:46:24,839 INFO L188 MainTranslator]: Completed pre-run [2019-09-17 20:46:25,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 20:46:25,089 INFO L192 MainTranslator]: Completed translation [2019-09-17 20:46:25,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25 WrapperNode [2019-09-17 20:46:25,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-17 20:46:25,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-17 20:46:25,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-17 20:46:25,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-17 20:46:25,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (1/1) ... [2019-09-17 20:46:25,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-17 20:46:25,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-17 20:46:25,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-17 20:46:25,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-17 20:46:25,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 08:46:25" (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 [2019-09-17 20:46:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-17 20:46:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-17 20:46:25,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-17 20:46:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-17 20:46:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-17 20:46:25,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-17 20:46:25,241 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-17 20:46:25,241 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-17 20:46:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-17 20:46:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-17 20:46:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-17 20:46:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-17 20:46:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-17 20:46:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-17 20:46:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-17 20:46:25,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-17 20:46:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-17 20:46:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-17 20:46:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-17 20:46:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-17 20:46:25,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-17 20:46:25,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-17 20:46:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-17 20:46:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-17 20:46:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-17 20:46:25,247 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-17 20:46:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-17 20:46:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-17 20:46:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-17 20:46:25,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-17 20:46:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-17 20:46:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-17 20:46:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-17 20:46:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-17 20:46:25,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-17 20:46:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-17 20:46:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-17 20:46:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-17 20:46:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-17 20:46:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-17 20:46:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-17 20:46:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-17 20:46:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-17 20:46:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-17 20:46:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-17 20:46:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-17 20:46:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-17 20:46:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-17 20:46:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-17 20:46:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-17 20:46:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-17 20:46:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-17 20:46:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-17 20:46:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-17 20:46:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-17 20:46:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-17 20:46:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-17 20:46:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-17 20:46:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-17 20:46:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-17 20:46:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-17 20:46:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-17 20:46:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-17 20:46:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-17 20:46:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-17 20:46:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-17 20:46:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-17 20:46:25,662 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-17 20:46:25,740 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-17 20:46:25,741 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-17 20:46:25,741 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-17 20:46:25,741 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-17 20:46:25,742 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-17 20:46:25,764 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-17 20:46:25,764 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-17 20:46:25,885 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-17 20:46:26,400 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-17 20:46:26,400 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-17 20:46:26,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 08:46:26 BoogieIcfgContainer [2019-09-17 20:46:26,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-17 20:46:26,403 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-17 20:46:26,403 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-17 20:46:26,403 INFO L275 PluginConnector]: Sifa initialized [2019-09-17 20:46:26,404 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 08:46:26" (1/1) ... [2019-09-17 20:46:26,405 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-17 20:46:26,429 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-17 20:46:26,429 INFO L169 IcfgInterpreter]: Building call graph [2019-09-17 20:46:26,436 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-17 20:46:26,444 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-17 20:46:26,446 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-17 20:46:26,790 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-17 20:46:27,167 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-17 20:46:27,293 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-17 20:46:27,395 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-17 20:46:27,849 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-17 20:46:27,856 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 95 for LOIs [2019-09-17 20:46:28,328 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2019-09-17 20:46:28,470 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-17 20:46:28,906 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2019-09-17 20:46:29,195 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-09-17 20:46:30,092 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-17 20:46:30,197 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2019-09-17 20:46:30,617 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-17 20:46:30,856 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2019-09-17 20:46:30,962 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2019-09-17 20:46:31,219 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-17 20:46:31,503 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-17 20:46:31,631 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-17 20:46:31,949 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2019-09-17 20:46:32,108 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-17 20:46:32,291 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2019-09-17 20:46:32,613 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-17 20:46:32,771 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-17 20:46:32,910 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-17 20:46:33,231 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-09-17 20:46:33,553 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 107 [2019-09-17 20:46:33,709 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-17 20:46:34,134 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2019-09-17 20:46:34,542 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 108 [2019-09-17 20:46:34,691 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-09-17 20:46:35,027 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2019-09-17 20:46:35,203 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-17 20:46:35,355 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-17 20:46:35,769 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2019-09-17 20:46:36,203 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 125 [2019-09-17 20:46:36,399 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-17 20:46:36,873 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 125 [2019-09-17 20:46:37,178 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 107 [2019-09-17 20:46:37,315 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-17 20:46:37,755 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2019-09-17 20:46:38,173 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 108 [2019-09-17 20:46:38,320 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-09-17 20:46:38,633 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2019-09-17 20:46:38,793 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-17 20:46:38,941 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-17 20:46:39,309 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2019-09-17 20:46:40,063 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2019-09-17 20:46:40,416 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-17 20:46:40,554 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-09-17 20:46:41,311 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2019-09-17 20:46:42,113 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2019-09-17 20:46:42,465 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-09-17 20:46:42,605 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-09-17 20:46:43,356 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2019-09-17 20:46:43,844 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-17 20:46:44,044 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 98 for LOIs [2019-09-17 20:46:44,075 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 123 for LOIs [2019-09-17 20:46:44,082 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 145 for LOIs [2019-09-17 20:46:44,091 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 18 for LOIs [2019-09-17 20:46:44,204 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 21 for LOIs [2019-09-17 20:46:44,312 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-17 20:46:44,313 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-17 20:46:44,314 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 268#(and (<= |#NULL.base| 0) (= |~#pppox_proto_family~0.offset| 0) (<= 0 |#NULL.base|) (<= |~#pppox_protos~0.offset| 0) (<= 0 |~#pppox_protos~0.offset|) (<= 1 ~LDV_IN_INTERRUPT~0) (= |#t~string32.offset| 0) (<= ~LDV_IN_INTERRUPT~0 1) (= |#NULL.offset| 0) (not (= 1 ~ldv_module_refcounter~0))) [2019-09-17 20:46:44,330 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-17 20:46:44,330 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-17 20:46:44,332 INFO L168 Benchmark]: Toolchain (without parser) took 20642.44 ms. Allocated memory was 134.2 MB in the beginning and 585.1 MB in the end (delta: 450.9 MB). Free memory was 83.1 MB in the beginning and 471.7 MB in the end (delta: -388.6 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,333 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1399.80 ms. Allocated memory was 134.2 MB in the beginning and 228.6 MB in the end (delta: 94.4 MB). Free memory was 82.9 MB in the beginning and 143.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,334 INFO L168 Benchmark]: Boogie Preprocessor took 81.12 ms. Allocated memory is still 228.6 MB. Free memory was 143.1 MB in the beginning and 139.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,335 INFO L168 Benchmark]: RCFGBuilder took 1230.65 ms. Allocated memory was 228.6 MB in the beginning and 272.1 MB in the end (delta: 43.5 MB). Free memory was 139.6 MB in the beginning and 204.4 MB in the end (delta: -64.8 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,336 INFO L168 Benchmark]: Sifa took 17927.13 ms. Allocated memory was 272.1 MB in the beginning and 585.1 MB in the end (delta: 313.0 MB). Free memory was 204.4 MB in the beginning and 471.7 MB in the end (delta: -267.3 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2019-09-17 20:46:44,340 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1399.80 ms. Allocated memory was 134.2 MB in the beginning and 228.6 MB in the end (delta: 94.4 MB). Free memory was 82.9 MB in the beginning and 143.1 MB in the end (delta: -60.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.12 ms. Allocated memory is still 228.6 MB. Free memory was 143.1 MB in the beginning and 139.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1230.65 ms. Allocated memory was 228.6 MB in the beginning and 272.1 MB in the end (delta: 43.5 MB). Free memory was 139.6 MB in the beginning and 204.4 MB in the end (delta: -64.8 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. * Sifa took 17927.13 ms. Allocated memory was 272.1 MB in the beginning and 585.1 MB in the end (delta: 313.0 MB). Free memory was 204.4 MB in the beginning and 471.7 MB in the end (delta: -267.3 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 17885, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 116, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 84, TOOLS_POST_TIME[ms]: 746, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 93, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 45, TOOLS_QUANTIFIERELIM_APPLICATIONS: 127, TOOLS_QUANTIFIERELIM_TIME[ms]: 830, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 674, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 122, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME[ms]: 15068, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1765, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 18, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 41, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 7009, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7009, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5784, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5783, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 23, DAG_COMPRESSION_PROCESSED_NODES: 255, DAG_COMPRESSION_RETAINED_NODES: 129 - UnprovableResult [Line: 4984]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 268#(and (<= |#NULL.base| 0) (= |~#pppox_proto_family~0.offset| 0) (<= 0 |#NULL.base|) (<= |~#pppox_protos~0.offset| 0) (<= 0 |~#pppox_protos~0.offset|) (<= 1 ~LDV_IN_INTERRUPT~0) (= |#t~string32.offset| 0) (<= ~LDV_IN_INTERRUPT~0 1) (= |#NULL.offset| 0) (not (= 1 ~ldv_module_refcounter~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...