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 SequenceOfStatements --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-fea9116 [2019-09-20 18:45:31,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:45:31,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:45:31,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:45:31,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:45:31,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:45:31,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:45:31,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:45:31,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:45:31,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:45:31,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:45:31,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:45:31,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:45:31,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:45:31,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:45:31,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:45:31,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:45:31,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:45:31,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:45:31,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:45:31,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:45:31,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:45:31,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:45:31,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:45:31,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:45:31,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:45:31,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:45:31,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:45:31,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:45:31,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:45:31,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:45:31,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:45:31,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:45:31,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:45:31,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:45:31,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:45:31,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:45:31,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:45:31,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:45:31,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:45:31,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:45:31,249 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 18:45:31,265 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:45:31,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:45:31,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:45:31,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:45:31,267 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:45:31,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:45:31,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:45:31,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:45:31,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:45:31,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:45:31,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:45:31,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:45:31,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:45:31,269 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:45:31,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:45:31,269 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:45:31,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:45:31,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:45:31,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:45:31,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:45:31,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:45:31,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:45:31,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:45:31,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:45:31,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:45:31,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:45:31,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:45:31,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:45:31,272 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 -> SequenceOfStatements 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 [2019-09-20 18:45:31,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:45:31,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:45:31,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:45:31,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:45:31,331 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:45:31,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 18:45:31,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e26b27fd/81ec25e45a6341768781f9b7540e7edd/FLAGafb376ac4 [2019-09-20 18:45:32,117 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:45:32,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 18:45:32,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e26b27fd/81ec25e45a6341768781f9b7540e7edd/FLAGafb376ac4 [2019-09-20 18:45:32,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e26b27fd/81ec25e45a6341768781f9b7540e7edd [2019-09-20 18:45:32,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:45:32,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:45:32,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:32,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:45:32,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:45:32,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab09a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:32, skipping insertion in model container [2019-09-20 18:45:32,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:45:32" (1/1) ... [2019-09-20 18:45:32,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:45:32,423 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:45:33,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:33,405 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:45:33,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:45:33,641 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:45:33,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33 WrapperNode [2019-09-20 18:45:33,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:45:33,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:45:33,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:45:33,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:45:33,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (1/1) ... [2019-09-20 18:45:33,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:45:33,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:45:33,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:45:33,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:45:33,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:45:33" (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 18:45:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:45:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:45:33,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 18:45:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 18:45:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-20 18:45:33,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-20 18:45:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-20 18:45:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-20 18:45:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-20 18:45:33,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-20 18:45:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-20 18:45:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-20 18:45:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-20 18:45:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:45:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 18:45:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-20 18:45:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-20 18:45:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-20 18:45:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-20 18:45:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-20 18:45:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 18:45:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-20 18:45:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-20 18:45:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-20 18:45:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 18:45:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-20 18:45:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-20 18:45:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 18:45:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-20 18:45:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-20 18:45:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-20 18:45:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-20 18:45:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-20 18:45:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 18:45:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 18:45:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:45:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 18:45:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-20 18:45:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-20 18:45:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-20 18:45:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-20 18:45:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-20 18:45:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-20 18:45:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-20 18:45:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-20 18:45:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-20 18:45:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-20 18:45:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-20 18:45:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-20 18:45:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-20 18:45:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-20 18:45:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-20 18:45:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-20 18:45:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-20 18:45:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-20 18:45:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-20 18:45:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-20 18:45:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 18:45:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 18:45:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 18:45:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 18:45:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 18:45:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-20 18:45:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 18:45:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 18:45:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:45:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 18:45:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-20 18:45:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 18:45:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 18:45:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 18:45:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 18:45:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 18:45:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:45:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 18:45:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 18:45:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:45:34,555 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 18:45:34,655 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 18:45:34,656 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 18:45:34,656 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-20 18:45:34,656 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-20 18:45:34,657 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 18:45:34,695 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-20 18:45:34,695 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-20 18:45:34,798 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-20 18:45:34,910 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:45:34,911 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 18:45:34,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:34 BoogieIcfgContainer [2019-09-20 18:45:34,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:45:34,913 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:45:34,913 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:45:34,913 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:45:34,915 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:45:34" (1/1) ... [2019-09-20 18:45:34,915 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 [2019-09-20 18:45:34,941 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:45:34,941 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:45:34,951 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:45:34,960 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:45:34,961 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:45:35,479 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 18:45:35,780 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-20 18:45:35,908 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 18:45:36,018 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 18:45:36,024 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-20 18:45:36,438 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 18:45:36,636 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 18:45:37,533 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-20 18:45:37,893 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-09-20 18:45:38,182 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 18:45:38,329 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:39,088 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 18:45:39,224 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 18:45:39,395 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:39,530 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:39,805 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 18:45:39,956 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 18:45:40,236 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 18:45:40,353 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:41,099 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 18:45:41,242 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 18:45:41,373 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:41,519 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:42,257 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 18:45:42,642 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 18:45:43,380 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 18:45:43,706 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 18:45:44,182 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-20 18:45:44,284 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 94 for LOIs [2019-09-20 18:45:44,694 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 117 [2019-09-20 18:45:44,819 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-20 18:45:44,847 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 113 for LOIs [2019-09-20 18:45:44,854 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 113 for LOIs [2019-09-20 18:45:44,861 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 15 for LOIs [2019-09-20 18:45:44,928 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 18 for LOIs [2019-09-20 18:45:44,954 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 18:45:44,955 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 18:45:44,958 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 240#(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))) [2019-09-20 18:45:44,974 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 18:45:44,975 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 18:45:44,976 INFO L168 Benchmark]: Toolchain (without parser) took 12676.15 ms. Allocated memory was 132.6 MB in the beginning and 490.7 MB in the end (delta: 358.1 MB). Free memory was 81.6 MB in the beginning and 369.7 MB in the end (delta: -288.1 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:44,977 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.9 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 18:45:44,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1340.87 ms. Allocated memory was 132.6 MB in the beginning and 222.8 MB in the end (delta: 90.2 MB). Free memory was 81.4 MB in the beginning and 138.6 MB in the end (delta: -57.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:44,979 INFO L168 Benchmark]: Boogie Preprocessor took 144.43 ms. Allocated memory is still 222.8 MB. Free memory was 138.6 MB in the beginning and 135.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:44,980 INFO L168 Benchmark]: RCFGBuilder took 1125.57 ms. Allocated memory is still 222.8 MB. Free memory was 135.0 MB in the beginning and 80.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2019-09-20 18:45:44,981 INFO L168 Benchmark]: Sifa took 10061.95 ms. Allocated memory was 222.8 MB in the beginning and 490.7 MB in the end (delta: 267.9 MB). Free memory was 80.6 MB in the beginning and 369.7 MB in the end (delta: -289.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 18:45:44,984 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 132.6 MB. Free memory was 106.9 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1340.87 ms. Allocated memory was 132.6 MB in the beginning and 222.8 MB in the end (delta: 90.2 MB). Free memory was 81.4 MB in the beginning and 138.6 MB in the end (delta: -57.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.43 ms. Allocated memory is still 222.8 MB. Free memory was 138.6 MB in the beginning and 135.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1125.57 ms. Allocated memory is still 222.8 MB. Free memory was 135.0 MB in the beginning and 80.6 MB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. * Sifa took 10061.95 ms. Allocated memory was 222.8 MB in the beginning and 490.7 MB in the end (delta: 267.9 MB). Free memory was 80.6 MB in the beginning and 369.7 MB in the end (delta: -289.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 10017, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 142, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 110, TOOLS_POST_TIME[ms]: 851, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 93, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 26, TOOLS_QUANTIFIERELIM_APPLICATIONS: 152, TOOLS_QUANTIFIERELIM_TIME[ms]: 911, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 771, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 148, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 36, DOMAIN_JOIN_TIME[ms]: 7082, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1778, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 25, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME[ms]: 41, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 4165, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4164, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2319, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2319, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 32, DAG_COMPRESSION_PROCESSED_NODES: 286, DAG_COMPRESSION_RETAINED_NODES: 156 - 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 240#(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...