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 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 [2019-09-16 20:26:28,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 20:26:28,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 20:26:28,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 20:26:28,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 20:26:28,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 20:26:28,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 20:26:28,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 20:26:28,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 20:26:28,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 20:26:28,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 20:26:28,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 20:26:28,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 20:26:28,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 20:26:28,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 20:26:28,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 20:26:28,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 20:26:28,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 20:26:28,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 20:26:28,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 20:26:28,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 20:26:28,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 20:26:28,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 20:26:28,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 20:26:28,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 20:26:28,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 20:26:28,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 20:26:28,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 20:26:28,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 20:26:28,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 20:26:28,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 20:26:28,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 20:26:28,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 20:26:28,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 20:26:28,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 20:26:28,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 20:26:28,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 20:26:28,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 20:26:28,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 20:26:28,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 20:26:28,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 20:26:28,476 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 [2019-09-16 20:26:28,491 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 20:26:28,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 20:26:28,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 20:26:28,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 20:26:28,493 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 20:26:28,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 20:26:28,493 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 20:26:28,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 20:26:28,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 20:26:28,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 20:26:28,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 20:26:28,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 20:26:28,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 20:26:28,495 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 20:26:28,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 20:26:28,495 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 20:26:28,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 20:26:28,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 20:26:28,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 20:26:28,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 20:26:28,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 20:26:28,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 20:26:28,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 20:26:28,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 20:26:28,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 20:26:28,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 20:26:28,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 20:26:28,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 20:26:28,498 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 -> 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 [2019-09-16 20:26:28,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 20:26:28,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 20:26:28,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 20:26:28,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 20:26:28,561 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 20:26:28,561 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-16 20:26:28,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c547925ed/441693ebe1d74eabb60574d63bf89384/FLAGe0192da93 [2019-09-16 20:26:29,410 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 20:26:29,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-16 20:26:29,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c547925ed/441693ebe1d74eabb60574d63bf89384/FLAGe0192da93 [2019-09-16 20:26:29,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c547925ed/441693ebe1d74eabb60574d63bf89384 [2019-09-16 20:26:29,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 20:26:29,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 20:26:29,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 20:26:29,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 20:26:29,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 20:26:29,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 08:26:29" (1/1) ... [2019-09-16 20:26:29,530 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 16.09 08:26:29, skipping insertion in model container [2019-09-16 20:26:29,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 08:26:29" (1/1) ... [2019-09-16 20:26:29,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 20:26:29,646 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 20:26:30,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 20:26:30,603 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 20:26:30,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 20:26:30,797 INFO L192 MainTranslator]: Completed translation [2019-09-16 20:26:30,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30 WrapperNode [2019-09-16 20:26:30,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 20:26:30,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 20:26:30,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 20:26:30,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 20:26:30,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (1/1) ... [2019-09-16 20:26:30,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 20:26:30,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 20:26:30,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 20:26:30,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 20:26:30,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 08:26:30" (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 [2019-09-16 20:26:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 20:26:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 20:26:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-16 20:26:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-16 20:26:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-16 20:26:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-16 20:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-16 20:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-16 20:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-16 20:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-16 20:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-16 20:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-16 20:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-16 20:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 20:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-16 20:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-16 20:26:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-16 20:26:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-16 20:26:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-16 20:26:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-16 20:26:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-16 20:26:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-16 20:26:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-16 20:26:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-16 20:26:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-16 20:26:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-16 20:26:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-16 20:26:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-16 20:26:30,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-16 20:26:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 20:26:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-16 20:26:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-16 20:26:30,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-16 20:26:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-16 20:26:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-16 20:26:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-16 20:26:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-16 20:26:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-16 20:26:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-16 20:26:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-16 20:26:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-16 20:26:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 20:26:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 20:26:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 20:26:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 20:26:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-16 20:26:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-16 20:26:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 20:26:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 20:26:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 20:26:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-16 20:26:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-16 20:26:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 20:26:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-16 20:26:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 20:26:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-16 20:26:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 20:26:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 20:26:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 20:26:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 20:26:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 20:26:31,373 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 20:26:31,460 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-16 20:26:31,461 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-16 20:26:31,461 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 20:26:31,461 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 20:26:31,462 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 20:26:31,492 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-16 20:26:31,492 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-16 20:26:31,615 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-16 20:26:32,095 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 20:26:32,096 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 20:26:32,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 08:26:32 BoogieIcfgContainer [2019-09-16 20:26:32,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 20:26:32,098 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-16 20:26:32,098 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-16 20:26:32,098 INFO L275 PluginConnector]: Sifa initialized [2019-09-16 20:26:32,099 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 08:26:32" (1/1) ... [2019-09-16 20:26:32,100 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-16 20:26:32,128 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-16 20:26:32,129 INFO L169 IcfgInterpreter]: Building call graph [2019-09-16 20:26:32,137 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-16 20:26:32,146 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-16 20:26:32,148 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-16 20:26:32,451 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-16 20:26:32,764 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-16 20:26:32,892 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-16 20:26:33,011 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-16 20:26:33,025 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-16 20:26:33,531 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-16 20:26:33,679 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-16 20:26:34,486 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-16 20:26:34,862 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-16 20:26:35,182 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-16 20:26:35,313 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:35,718 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-16 20:26:35,853 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-16 20:26:35,998 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:36,145 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:36,460 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-16 20:26:36,617 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-16 20:26:36,915 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-16 20:26:37,055 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:37,444 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-16 20:26:37,589 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-16 20:26:37,726 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:37,857 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:38,619 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-16 20:26:38,970 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-16 20:26:39,725 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-16 20:26:40,100 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-16 20:26:40,585 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-16 20:26:40,699 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 94 for LOIs [2019-09-16 20:26:40,738 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 117 for LOIs [2019-09-16 20:26:40,743 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 117 for LOIs [2019-09-16 20:26:40,751 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 15 for LOIs [2019-09-16 20:26:40,812 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 18 for LOIs [2019-09-16 20:26:40,835 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-16 20:26:40,835 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-16 20:26:40,838 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 203#(and (= |#NULL.base| 0) (= |#t~string32.offset| 0) (= |~#pppox_protos~0.offset| 0) (= ~LDV_IN_INTERRUPT~0 1) (= |~#pppox_proto_family~0.offset| 0) (= |#NULL.offset| 0) (not (= 1 ~ldv_module_refcounter~0))) [2019-09-16 20:26:40,857 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-16 20:26:40,857 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-16 20:26:40,859 INFO L168 Benchmark]: Toolchain (without parser) took 11336.68 ms. Allocated memory was 131.6 MB in the beginning and 449.3 MB in the end (delta: 317.7 MB). Free memory was 80.4 MB in the beginning and 307.0 MB in the end (delta: -226.6 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,860 INFO L168 Benchmark]: CDTParser took 1.28 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1275.27 ms. Allocated memory was 131.6 MB in the beginning and 214.4 MB in the end (delta: 82.8 MB). Free memory was 80.2 MB in the beginning and 136.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,862 INFO L168 Benchmark]: Boogie Preprocessor took 71.69 ms. Allocated memory is still 214.4 MB. Free memory was 135.9 MB in the beginning and 132.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,863 INFO L168 Benchmark]: RCFGBuilder took 1226.02 ms. Allocated memory was 214.4 MB in the beginning and 274.7 MB in the end (delta: 60.3 MB). Free memory was 132.4 MB in the beginning and 214.8 MB in the end (delta: -82.4 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,863 INFO L168 Benchmark]: Sifa took 8759.51 ms. Allocated memory was 274.7 MB in the beginning and 449.3 MB in the end (delta: 174.6 MB). Free memory was 214.8 MB in the beginning and 307.0 MB in the end (delta: -92.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2019-09-16 20:26:40,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 105.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1275.27 ms. Allocated memory was 131.6 MB in the beginning and 214.4 MB in the end (delta: 82.8 MB). Free memory was 80.2 MB in the beginning and 136.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.69 ms. Allocated memory is still 214.4 MB. Free memory was 135.9 MB in the beginning and 132.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1226.02 ms. Allocated memory was 214.4 MB in the beginning and 274.7 MB in the end (delta: 60.3 MB). Free memory was 132.4 MB in the beginning and 214.8 MB in the end (delta: -82.4 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * Sifa took 8759.51 ms. Allocated memory was 274.7 MB in the beginning and 449.3 MB in the end (delta: 174.6 MB). Free memory was 214.8 MB in the beginning and 307.0 MB in the end (delta: -92.1 MB). Peak memory consumption was 82.4 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]: 8710, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 116, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 84, TOOLS_POST_TIME[ms]: 639, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 93, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 39, TOOLS_QUANTIFIERELIM_APPLICATIONS: 127, TOOLS_QUANTIFIERELIM_TIME[ms]: 715, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 568, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 122, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME[ms]: 6709, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1064, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 27, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 19, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3552, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3551, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2077, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2077, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 26, 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 203#(and (= |#NULL.base| 0) (= |#t~string32.offset| 0) (= |~#pppox_protos~0.offset| 0) (= ~LDV_IN_INTERRUPT~0 1) (= |~#pppox_proto_family~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...