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 NeverFluid --sifa.intern.fluid NeverFluid --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 [2019-09-20 00:28:26,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 00:28:26,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 00:28:26,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 00:28:26,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 00:28:26,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 00:28:26,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 00:28:26,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 00:28:26,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 00:28:26,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 00:28:26,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 00:28:26,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 00:28:26,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 00:28:26,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 00:28:26,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 00:28:26,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 00:28:26,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 00:28:26,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 00:28:26,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 00:28:26,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 00:28:26,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 00:28:26,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 00:28:26,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 00:28:26,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 00:28:26,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 00:28:26,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 00:28:26,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 00:28:26,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 00:28:26,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 00:28:26,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 00:28:26,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 00:28:26,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 00:28:26,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 00:28:26,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 00:28:26,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 00:28:26,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 00:28:26,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 00:28:26,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 00:28:26,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 00:28:26,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 00:28:26,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 00:28:26,761 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 00:28:26,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 00:28:26,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 00:28:26,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 00:28:26,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 00:28:26,776 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 00:28:26,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 00:28:26,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 00:28:26,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 00:28:26,778 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 00:28:26,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 00:28:26,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 00:28:26,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 00:28:26,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 00:28:26,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 00:28:26,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 00:28:26,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 00:28:26,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 00:28:26,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 00:28:26,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 00:28:26,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 00:28:26,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 00:28:26,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 00:28:26,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 00:28:26,781 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 -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> NeverFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 00:28:26,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 00:28:26,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 00:28:26,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 00:28:26,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 00:28:26,836 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 00:28:26,836 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 00:28:26,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f11b6d0/2929e0ecb5644145bf14674cd5a04dd9/FLAGd9ddbb656 [2019-09-20 00:28:27,582 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 00:28:27,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 00:28:27,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f11b6d0/2929e0ecb5644145bf14674cd5a04dd9/FLAGd9ddbb656 [2019-09-20 00:28:27,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1f11b6d0/2929e0ecb5644145bf14674cd5a04dd9 [2019-09-20 00:28:27,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 00:28:27,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 00:28:27,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 00:28:27,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 00:28:27,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 00:28:27,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:28:27" (1/1) ... [2019-09-20 00:28:27,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b72ff42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:27, skipping insertion in model container [2019-09-20 00:28:27,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:28:27" (1/1) ... [2019-09-20 00:28:27,751 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 00:28:27,851 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 00:28:28,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:28:28,701 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 00:28:28,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 00:28:29,043 INFO L192 MainTranslator]: Completed translation [2019-09-20 00:28:29,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29 WrapperNode [2019-09-20 00:28:29,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 00:28:29,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 00:28:29,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 00:28:29,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 00:28:29,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (1/1) ... [2019-09-20 00:28:29,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 00:28:29,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 00:28:29,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 00:28:29,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 00:28:29,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:28:29" (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 00:28:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 00:28:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 00:28:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 00:28:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 00:28:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-20 00:28:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-20 00:28:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-20 00:28:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-20 00:28:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-20 00:28:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-20 00:28:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-20 00:28:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-20 00:28:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-20 00:28:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 00:28:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 00:28:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-20 00:28:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-20 00:28:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-20 00:28:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-20 00:28:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-20 00:28:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 00:28:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-20 00:28:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 00:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-20 00:28:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-20 00:28:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-20 00:28:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 00:28:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-20 00:28:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-20 00:28:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 00:28:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 00:28:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 00:28:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 00:28:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 00:28:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 00:28:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 00:28:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 00:28:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 00:28:29,650 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 00:28:29,745 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 00:28:29,745 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 00:28:29,746 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-20 00:28:29,746 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-20 00:28:29,748 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 00:28:29,789 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-20 00:28:29,789 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-20 00:28:29,888 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-20 00:28:30,426 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 00:28:30,426 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 00:28:30,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:28:30 BoogieIcfgContainer [2019-09-20 00:28:30,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 00:28:30,429 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 00:28:30,429 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 00:28:30,429 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 00:28:30,430 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:28:30" (1/1) ... [2019-09-20 00:28:30,431 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=NeverFluid ♦ 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=NeverFluid [2019-09-20 00:28:30,455 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 00:28:30,456 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 00:28:30,464 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 00:28:30,474 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 00:28:30,475 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 00:28:30,836 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 00:28:31,150 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-20 00:28:31,293 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 00:28:31,409 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 00:28:31,429 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-20 00:28:31,917 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 00:28:32,063 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 00:28:32,882 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-20 00:28:32,996 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 00:28:33,211 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-20 00:28:33,507 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 00:28:33,643 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:34,033 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 00:28:34,170 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 00:28:34,325 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:34,508 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:34,784 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 00:28:34,908 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 00:28:35,195 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 00:28:35,333 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:35,743 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 00:28:35,866 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 00:28:36,037 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:36,177 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:36,937 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 00:28:37,291 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 00:28:38,060 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 00:28:38,400 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 00:28:38,862 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-20 00:28:38,961 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 94 for LOIs [2019-09-20 00:28:38,995 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 117 for LOIs [2019-09-20 00:28:39,001 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 117 for LOIs [2019-09-20 00:28:39,017 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 15 for LOIs [2019-09-20 00:28:39,074 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 18 for LOIs [2019-09-20 00:28:39,097 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 00:28:39,097 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 00:28:39,099 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))) [2019-09-20 00:28:39,112 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 00:28:39,112 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 00:28:39,114 INFO L168 Benchmark]: Toolchain (without parser) took 11382.90 ms. Allocated memory was 133.7 MB in the beginning and 418.9 MB in the end (delta: 285.2 MB). Free memory was 81.5 MB in the beginning and 148.1 MB in the end (delta: -66.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,115 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1312.04 ms. Allocated memory was 133.7 MB in the beginning and 225.4 MB in the end (delta: 91.8 MB). Free memory was 81.2 MB in the beginning and 142.2 MB in the end (delta: -61.0 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,116 INFO L168 Benchmark]: Boogie Preprocessor took 146.38 ms. Allocated memory is still 225.4 MB. Free memory was 142.2 MB in the beginning and 138.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,117 INFO L168 Benchmark]: RCFGBuilder took 1236.34 ms. Allocated memory was 225.4 MB in the beginning and 271.6 MB in the end (delta: 46.1 MB). Free memory was 138.8 MB in the beginning and 206.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,118 INFO L168 Benchmark]: Sifa took 8683.41 ms. Allocated memory was 271.6 MB in the beginning and 418.9 MB in the end (delta: 147.3 MB). Free memory was 206.3 MB in the beginning and 148.1 MB in the end (delta: 58.2 MB). Peak memory consumption was 205.5 MB. Max. memory is 7.1 GB. [2019-09-20 00:28:39,122 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 133.7 MB. Free memory was 106.7 MB in the beginning and 106.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1312.04 ms. Allocated memory was 133.7 MB in the beginning and 225.4 MB in the end (delta: 91.8 MB). Free memory was 81.2 MB in the beginning and 142.2 MB in the end (delta: -61.0 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.38 ms. Allocated memory is still 225.4 MB. Free memory was 142.2 MB in the beginning and 138.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1236.34 ms. Allocated memory was 225.4 MB in the beginning and 271.6 MB in the end (delta: 46.1 MB). Free memory was 138.8 MB in the beginning and 206.3 MB in the end (delta: -67.5 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. * Sifa took 8683.41 ms. Allocated memory was 271.6 MB in the beginning and 418.9 MB in the end (delta: 147.3 MB). Free memory was 206.3 MB in the beginning and 148.1 MB in the end (delta: 58.2 MB). Peak memory consumption was 205.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 8644, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 116, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 84, TOOLS_POST_TIME[ms]: 718, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 119, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 39, TOOLS_QUANTIFIERELIM_APPLICATIONS: 127, TOOLS_QUANTIFIERELIM_TIME[ms]: 812, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 626, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 122, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME[ms]: 6554, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1051, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 20, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 19, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3482, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3481, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2112, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2111, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 33, 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...