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 InterpretCallSummarizer --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 [2019-09-19 10:39:35,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 10:39:35,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 10:39:35,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 10:39:35,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 10:39:35,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 10:39:35,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 10:39:35,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 10:39:35,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 10:39:35,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 10:39:35,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 10:39:35,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 10:39:35,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 10:39:35,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 10:39:35,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 10:39:35,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 10:39:35,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 10:39:35,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 10:39:35,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 10:39:35,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 10:39:35,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 10:39:35,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 10:39:35,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 10:39:35,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 10:39:35,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-19 10:39:35,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-19 10:39:35,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-19 10:39:35,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-19 10:39:35,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-19 10:39:35,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-19 10:39:35,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 10:39:35,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 10:39:35,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 10:39:35,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 10:39:35,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 10:39:35,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 10:39:35,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 10:39:35,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 10:39:35,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 10:39:35,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 10:39:35,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 10:39:35,306 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 [2019-09-19 10:39:35,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 10:39:35,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 10:39:35,322 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 10:39:35,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 10:39:35,322 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 10:39:35,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 10:39:35,323 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 10:39:35,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 10:39:35,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 10:39:35,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 10:39:35,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 10:39:35,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 10:39:35,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 10:39:35,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 10:39:35,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 10:39:35,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 10:39:35,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 10:39:35,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 10:39:35,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 10:39:35,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 10:39:35,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 10:39:35,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 10:39:35,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 10:39:35,327 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 -> InterpretCallSummarizer 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 [2019-09-19 10:39:35,384 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 10:39:35,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 10:39:35,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 10:39:35,404 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 10:39:35,405 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 10:39:35,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-19 10:39:35,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710b2e932/7e832ab8d4084a63a75c24d5db68f023/FLAG8d02128f5 [2019-09-19 10:39:36,244 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 10:39:36,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-19 10:39:36,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710b2e932/7e832ab8d4084a63a75c24d5db68f023/FLAG8d02128f5 [2019-09-19 10:39:36,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710b2e932/7e832ab8d4084a63a75c24d5db68f023 [2019-09-19 10:39:36,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 10:39:36,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 10:39:36,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 10:39:36,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 10:39:36,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 10:39:36,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:39:36" (1/1) ... [2019-09-19 10:39:36,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14205edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:36, skipping insertion in model container [2019-09-19 10:39:36,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:39:36" (1/1) ... [2019-09-19 10:39:36,346 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 10:39:36,445 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 10:39:37,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 10:39:37,357 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 10:39:37,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 10:39:37,533 INFO L192 MainTranslator]: Completed translation [2019-09-19 10:39:37,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37 WrapperNode [2019-09-19 10:39:37,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 10:39:37,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 10:39:37,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 10:39:37,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 10:39:37,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (1/1) ... [2019-09-19 10:39:37,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 10:39:37,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 10:39:37,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 10:39:37,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 10:39:37,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:39:37" (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 [2019-09-19 10:39:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 10:39:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 10:39:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-19 10:39:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-19 10:39:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-19 10:39:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-19 10:39:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-19 10:39:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-19 10:39:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-19 10:39:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-19 10:39:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-19 10:39:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-19 10:39:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-19 10:39:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 10:39:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-19 10:39:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-19 10:39:37,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-19 10:39:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-19 10:39:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-19 10:39:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-19 10:39:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-19 10:39:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-19 10:39:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-19 10:39:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-19 10:39:37,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-19 10:39:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-19 10:39:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-19 10:39:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-19 10:39:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-19 10:39:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-19 10:39:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-19 10:39:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-19 10:39:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-19 10:39:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-19 10:39:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-19 10:39:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-19 10:39:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-19 10:39:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-19 10:39:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-19 10:39:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-19 10:39:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-19 10:39:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-19 10:39:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-19 10:39:37,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 10:39:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-19 10:39:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-19 10:39:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-19 10:39:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-19 10:39:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-19 10:39:37,720 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-19 10:39:37,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-19 10:39:37,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 10:39:37,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-19 10:39:37,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-19 10:39:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 10:39:38,241 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-19 10:39:38,378 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-19 10:39:38,378 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-19 10:39:38,379 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-19 10:39:38,379 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-19 10:39:38,380 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-19 10:39:38,436 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-19 10:39:38,436 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-19 10:39:38,577 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-19 10:39:39,100 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 10:39:39,100 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-19 10:39:39,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:39:39 BoogieIcfgContainer [2019-09-19 10:39:39,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 10:39:39,102 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 10:39:39,102 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 10:39:39,103 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 10:39:39,104 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:39:39" (1/1) ... [2019-09-19 10:39:39,104 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=InterpretCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-19 10:39:39,127 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 10:39:39,128 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 10:39:39,135 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 10:39:39,144 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 10:39:39,145 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 10:39:39,384 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-19 10:39:39,575 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-09-19 10:39:39,829 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-19 10:39:40,246 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-19 10:39:40,252 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-19 10:39:40,424 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-19 10:39:40,578 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-19 10:39:40,758 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-19 10:39:40,915 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-19 10:39:41,053 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-19 10:39:41,197 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-19 10:39:41,572 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-09-19 10:39:41,750 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-19 10:39:42,858 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2019-09-19 10:39:43,409 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-19 10:39:44,063 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-19 10:39:44,552 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-19 10:39:44,698 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:45,574 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2019-09-19 10:39:45,712 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-19 10:39:45,876 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:46,024 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:47,015 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2019-09-19 10:39:47,488 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-19 10:39:48,093 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-19 10:39:48,484 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-19 10:39:48,626 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-19 10:39:48,974 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-19 10:39:49,119 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:49,593 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2019-09-19 10:39:49,732 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-19 10:39:49,879 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:50,041 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-19 10:39:50,833 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2019-09-19 10:39:51,200 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-09-19 10:39:51,336 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-19 10:39:51,457 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-19 10:39:51,571 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-19 10:39:51,711 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-19 10:39:51,855 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-19 10:39:51,971 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2019-09-19 10:39:52,084 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-19 10:39:52,201 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-19 10:39:52,983 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-19 10:39:53,350 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-19 10:39:54,417 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2019-09-19 10:39:54,524 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 97 for LOIs [2019-09-19 10:39:54,561 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 1 for LOIs [2019-09-19 10:39:54,563 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 1 for LOIs [2019-09-19 10:39:54,565 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 19 for LOIs [2019-09-19 10:39:54,623 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 19 for LOIs [2019-09-19 10:39:54,654 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-19 10:39:54,654 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-19 10:39:54,657 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 196#(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))) [2019-09-19 10:39:54,688 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-19 10:39:54,688 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-19 10:39:54,690 INFO L168 Benchmark]: Toolchain (without parser) took 18360.00 ms. Allocated memory was 134.2 MB in the beginning and 565.7 MB in the end (delta: 431.5 MB). Free memory was 82.8 MB in the beginning and 469.1 MB in the end (delta: -386.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,691 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1203.73 ms. Allocated memory was 134.2 MB in the beginning and 219.2 MB in the end (delta: 84.9 MB). Free memory was 82.6 MB in the beginning and 139.9 MB in the end (delta: -57.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,692 INFO L168 Benchmark]: Boogie Preprocessor took 90.04 ms. Allocated memory is still 219.2 MB. Free memory was 139.9 MB in the beginning and 136.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,693 INFO L168 Benchmark]: RCFGBuilder took 1472.42 ms. Allocated memory was 219.2 MB in the beginning and 267.4 MB in the end (delta: 48.2 MB). Free memory was 136.5 MB in the beginning and 203.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,694 INFO L168 Benchmark]: Sifa took 15586.26 ms. Allocated memory was 267.4 MB in the beginning and 565.7 MB in the end (delta: 298.3 MB). Free memory was 203.5 MB in the beginning and 469.1 MB in the end (delta: -265.6 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-09-19 10:39:54,698 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1203.73 ms. Allocated memory was 134.2 MB in the beginning and 219.2 MB in the end (delta: 84.9 MB). Free memory was 82.6 MB in the beginning and 139.9 MB in the end (delta: -57.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.04 ms. Allocated memory is still 219.2 MB. Free memory was 139.9 MB in the beginning and 136.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1472.42 ms. Allocated memory was 219.2 MB in the beginning and 267.4 MB in the end (delta: 48.2 MB). Free memory was 136.5 MB in the beginning and 203.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * Sifa took 15586.26 ms. Allocated memory was 267.4 MB in the beginning and 565.7 MB in the end (delta: 298.3 MB). Free memory was 203.5 MB in the beginning and 469.1 MB in the end (delta: -265.6 MB). Peak memory consumption was 32.7 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]: 15530, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 112, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 82, TOOLS_POST_TIME[ms]: 84, TOOLS_POST_CALL_APPLICATIONS: 24, TOOLS_POST_CALL_TIME[ms]: 88, TOOLS_POST_RETURN_APPLICATIONS: 17, TOOLS_POST_RETURN_TIME[ms]: 689, TOOLS_QUANTIFIERELIM_APPLICATIONS: 110, TOOLS_QUANTIFIERELIM_TIME[ms]: 804, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 670, FLUID_QUERY_TIME[ms]: 10, FLUID_QUERIES: 118, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 29, DOMAIN_JOIN_TIME[ms]: 12830, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1615, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 32, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME[ms]: 81, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 6370, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6369, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 17, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6927, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 25, 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 196#(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...