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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --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-fea9116 [2019-09-20 20:41:45,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 20:41:45,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 20:41:45,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 20:41:45,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 20:41:45,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 20:41:45,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 20:41:45,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 20:41:45,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 20:41:45,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 20:41:45,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 20:41:45,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 20:41:45,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 20:41:45,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 20:41:45,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 20:41:45,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 20:41:45,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 20:41:45,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 20:41:45,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 20:41:45,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 20:41:45,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 20:41:45,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 20:41:45,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 20:41:45,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 20:41:45,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 20:41:45,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 20:41:45,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 20:41:45,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 20:41:45,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 20:41:45,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 20:41:45,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 20:41:45,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 20:41:45,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 20:41:45,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 20:41:45,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 20:41:45,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 20:41:45,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 20:41:45,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 20:41:45,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 20:41:45,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 20:41:45,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 20:41:45,346 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 [2019-09-20 20:41:45,363 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 20:41:45,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 20:41:45,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 20:41:45,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 20:41:45,365 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 20:41:45,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 20:41:45,365 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 20:41:45,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 20:41:45,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 20:41:45,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 20:41:45,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 20:41:45,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 20:41:45,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 20:41:45,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 20:41:45,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 20:41:45,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 20:41:45,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:41:45,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 20:41:45,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 20:41:45,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 20:41:45,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 20:41:45,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 20:41:45,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 20:41:45,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> ReUseSupersetCallSummarizer 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 [2019-09-20 20:41:45,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 20:41:45,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 20:41:45,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 20:41:45,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 20:41:45,418 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 20:41:45,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 20:41:45,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43d78c43/d4c8aa45f4d6494eaf096f6b05a078d8/FLAG4decbf54f [2019-09-20 20:41:46,166 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 20:41:46,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 20:41:46,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43d78c43/d4c8aa45f4d6494eaf096f6b05a078d8/FLAG4decbf54f [2019-09-20 20:41:46,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43d78c43/d4c8aa45f4d6494eaf096f6b05a078d8 [2019-09-20 20:41:46,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 20:41:46,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 20:41:46,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 20:41:46,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 20:41:46,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 20:41:46,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:46" (1/1) ... [2019-09-20 20:41:46,337 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 20.09 08:41:46, skipping insertion in model container [2019-09-20 20:41:46,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:41:46" (1/1) ... [2019-09-20 20:41:46,345 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 20:41:46,446 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 20:41:47,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:41:47,430 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 20:41:47,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:41:47,611 INFO L192 MainTranslator]: Completed translation [2019-09-20 20:41:47,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47 WrapperNode [2019-09-20 20:41:47,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 20:41:47,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 20:41:47,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 20:41:47,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 20:41:47,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (1/1) ... [2019-09-20 20:41:47,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 20:41:47,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 20:41:47,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 20:41:47,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 20:41:47,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:41:47" (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 [2019-09-20 20:41:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 20:41:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 20:41:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 20:41:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 20:41:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-20 20:41:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-20 20:41:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-20 20:41:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-20 20:41:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-20 20:41:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-20 20:41:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-20 20:41:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-20 20:41:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-20 20:41:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 20:41:47,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 20:41:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-20 20:41:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-20 20:41:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-20 20:41:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-20 20:41:47,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 20:41:47,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-20 20:41:47,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-20 20:41:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 20:41:47,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 20:41:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 20:41:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 20:41:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-20 20:41:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-20 20:41:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-20 20:41:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-20 20:41:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-20 20:41:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 20:41:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 20:41:47,788 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 20:41:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 20:41:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 20:41:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 20:41:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 20:41:47,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 20:41:48,155 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 20:41:48,274 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 20:41:48,274 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 20:41:48,275 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-20 20:41:48,275 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-20 20:41:48,276 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 20:41:48,312 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-20 20:41:48,313 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-20 20:41:48,432 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-20 20:41:48,886 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 20:41:48,886 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 20:41:48,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:48 BoogieIcfgContainer [2019-09-20 20:41:48,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 20:41:48,888 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 20:41:48,888 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 20:41:48,888 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 20:41:48,890 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:41:48" (1/1) ... [2019-09-20 20:41:48,890 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 20:41:48,913 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 20:41:48,913 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 20:41:48,921 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 20:41:48,930 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 20:41:48,932 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 20:41:49,157 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-20 20:41:49,321 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-20 20:41:49,564 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 20:41:49,832 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-20 20:41:49,836 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-20 20:41:49,963 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 20:41:50,108 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 20:41:50,267 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 20:41:50,407 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 20:41:50,535 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 20:41:50,647 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-20 20:41:50,946 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-09-20 20:41:51,145 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 20:41:52,100 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2019-09-20 20:41:52,564 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-20 20:41:53,148 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-20 20:41:53,601 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 20:41:53,730 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:54,512 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2019-09-20 20:41:54,636 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 20:41:54,766 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:54,893 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:55,767 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2019-09-20 20:41:56,183 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-20 20:41:56,716 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-20 20:41:57,107 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 20:41:57,227 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 20:41:57,514 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 20:41:57,641 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:58,012 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2019-09-20 20:41:58,141 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 20:41:58,271 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:58,401 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 20:41:59,126 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2019-09-20 20:41:59,483 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-09-20 20:41:59,616 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 20:41:59,720 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 20:42:00,709 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 106 [2019-09-20 20:42:01,067 WARN L191 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-09-20 20:42:01,959 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2019-09-20 20:42:02,052 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 97 for LOIs [2019-09-20 20:42:02,083 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 1 for LOIs [2019-09-20 20:42:02,085 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 1 for LOIs [2019-09-20 20:42:02,087 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 19 for LOIs [2019-09-20 20:42:02,151 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 19 for LOIs [2019-09-20 20:42:02,175 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 20:42:02,175 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 20:42:02,177 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 177#(and (= |#NULL.base| 0) (= |#t~string32.offset| 0) (= |~#pppox_proto_family~0.offset| 0) (= ~LDV_IN_INTERRUPT~0 1) (= |~#pppox_protos~0.offset| 0) (= |#NULL.offset| 0) (not (= 1 ~ldv_module_refcounter~0))) [2019-09-20 20:42:02,191 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 20:42:02,191 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 20:42:02,193 INFO L168 Benchmark]: Toolchain (without parser) took 15866.78 ms. Allocated memory was 140.0 MB in the beginning and 524.8 MB in the end (delta: 384.8 MB). Free memory was 80.8 MB in the beginning and 272.6 MB in the end (delta: -191.9 MB). Peak memory consumption was 193.0 MB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,194 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1282.23 ms. Allocated memory was 140.0 MB in the beginning and 221.8 MB in the end (delta: 81.8 MB). Free memory was 80.5 MB in the beginning and 147.7 MB in the end (delta: -67.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,195 INFO L168 Benchmark]: Boogie Preprocessor took 98.85 ms. Allocated memory is still 221.8 MB. Free memory was 147.7 MB in the beginning and 143.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,196 INFO L168 Benchmark]: RCFGBuilder took 1176.47 ms. Allocated memory was 221.8 MB in the beginning and 267.9 MB in the end (delta: 46.1 MB). Free memory was 143.4 MB in the beginning and 208.2 MB in the end (delta: -64.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,197 INFO L168 Benchmark]: Sifa took 13303.22 ms. Allocated memory was 267.9 MB in the beginning and 524.8 MB in the end (delta: 256.9 MB). Free memory was 208.2 MB in the beginning and 272.6 MB in the end (delta: -64.4 MB). Peak memory consumption was 192.5 MB. Max. memory is 7.1 GB. [2019-09-20 20:42:02,200 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1282.23 ms. Allocated memory was 140.0 MB in the beginning and 221.8 MB in the end (delta: 81.8 MB). Free memory was 80.5 MB in the beginning and 147.7 MB in the end (delta: -67.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.85 ms. Allocated memory is still 221.8 MB. Free memory was 147.7 MB in the beginning and 143.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1176.47 ms. Allocated memory was 221.8 MB in the beginning and 267.9 MB in the end (delta: 46.1 MB). Free memory was 143.4 MB in the beginning and 208.2 MB in the end (delta: -64.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * Sifa took 13303.22 ms. Allocated memory was 267.9 MB in the beginning and 524.8 MB in the end (delta: 256.9 MB). Free memory was 208.2 MB in the beginning and 272.6 MB in the end (delta: -64.4 MB). Peak memory consumption was 192.5 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]: 13264, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 101, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 74, TOOLS_POST_TIME[ms]: 76, TOOLS_POST_CALL_APPLICATIONS: 21, TOOLS_POST_CALL_TIME[ms]: 69, TOOLS_POST_RETURN_APPLICATIONS: 14, TOOLS_POST_RETURN_TIME[ms]: 525, TOOLS_QUANTIFIERELIM_APPLICATIONS: 98, TOOLS_QUANTIFIERELIM_TIME[ms]: 616, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 509, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 107, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 25, DOMAIN_JOIN_TIME[ms]: 10906, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1398, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 52, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME[ms]: 46, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5604, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5604, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 14, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5728, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 251, DAG_COMPRESSION_RETAINED_NODES: 127 - 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 177#(and (= |#NULL.base| 0) (= |#t~string32.offset| 0) (= |~#pppox_proto_family~0.offset| 0) (= ~LDV_IN_INTERRUPT~0 1) (= |~#pppox_protos~0.offset| 0) (= |#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...