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 SingleStatement --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 19:44:13,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 19:44:13,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 19:44:13,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 19:44:13,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 19:44:13,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 19:44:13,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 19:44:13,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 19:44:13,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 19:44:13,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 19:44:13,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 19:44:13,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 19:44:13,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 19:44:13,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 19:44:13,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 19:44:13,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 19:44:13,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 19:44:13,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 19:44:13,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 19:44:13,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 19:44:13,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 19:44:13,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 19:44:13,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 19:44:13,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 19:44:13,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 19:44:13,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 19:44:13,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 19:44:13,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 19:44:13,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 19:44:13,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 19:44:13,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 19:44:13,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 19:44:13,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 19:44:13,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 19:44:13,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 19:44:13,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 19:44:13,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 19:44:13,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 19:44:13,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 19:44:13,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 19:44:13,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 19:44:13,162 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 19:44:13,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 19:44:13,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 19:44:13,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 19:44:13,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 19:44:13,182 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 19:44:13,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 19:44:13,183 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 19:44:13,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 19:44:13,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 19:44:13,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 19:44:13,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 19:44:13,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 19:44:13,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 19:44:13,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 19:44:13,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 19:44:13,185 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 19:44:13,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 19:44:13,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 19:44:13,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 19:44:13,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 19:44:13,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 19:44:13,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 19:44:13,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 19:44:13,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 19:44:13,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 19:44:13,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 19:44:13,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 19:44:13,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 19:44:13,189 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 -> SingleStatement 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 19:44:13,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 19:44:13,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 19:44:13,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 19:44:13,273 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 19:44:13,273 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 19:44:13,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 19:44:13,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67beadc64/81183efcb2a74273ab3807e29a1ba67b/FLAGfd01f9119 [2019-09-20 19:44:14,117 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 19:44:14,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 19:44:14,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67beadc64/81183efcb2a74273ab3807e29a1ba67b/FLAGfd01f9119 [2019-09-20 19:44:14,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67beadc64/81183efcb2a74273ab3807e29a1ba67b [2019-09-20 19:44:14,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 19:44:14,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 19:44:14,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 19:44:14,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 19:44:14,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 19:44:14,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:44:14" (1/1) ... [2019-09-20 19:44:14,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216c820d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:14, skipping insertion in model container [2019-09-20 19:44:14,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:44:14" (1/1) ... [2019-09-20 19:44:14,298 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 19:44:14,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 19:44:15,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:44:15,236 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 19:44:15,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:44:15,496 INFO L192 MainTranslator]: Completed translation [2019-09-20 19:44:15,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15 WrapperNode [2019-09-20 19:44:15,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 19:44:15,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 19:44:15,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 19:44:15,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 19:44:15,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (1/1) ... [2019-09-20 19:44:15,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 19:44:15,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 19:44:15,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 19:44:15,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 19:44:15,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:44:15" (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 19:44:15,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 19:44:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 19:44:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 19:44:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 19:44:15,677 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-20 19:44:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-20 19:44:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-20 19:44:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-20 19:44:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-20 19:44:15,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-20 19:44:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-20 19:44:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-20 19:44:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-20 19:44:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 19:44:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 19:44:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-20 19:44:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-20 19:44:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-20 19:44:15,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-20 19:44:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-20 19:44:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-20 19:44:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-20 19:44:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-20 19:44:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 19:44:15,683 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 19:44:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-20 19:44:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-20 19:44:15,685 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-20 19:44:15,686 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-20 19:44:15,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 19:44:15,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 19:44:15,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 19:44:15,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 19:44:15,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-20 19:44:15,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 19:44:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 19:44:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 19:44:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 19:44:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 19:44:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-20 19:44:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 19:44:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 19:44:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 19:44:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 19:44:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 19:44:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 19:44:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 19:44:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 19:44:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 19:44:16,059 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 19:44:16,196 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 19:44:16,196 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 19:44:16,196 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-20 19:44:16,196 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-20 19:44:16,198 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 19:44:16,229 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-20 19:44:16,230 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-20 19:44:16,395 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-20 19:44:16,583 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 19:44:16,583 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 19:44:16,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:44:16 BoogieIcfgContainer [2019-09-20 19:44:16,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 19:44:16,585 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 19:44:16,586 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 19:44:16,586 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 19:44:16,587 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:44:16" (1/1) ... [2019-09-20 19:44:16,587 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 19:44:16,610 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 19:44:16,610 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 19:44:16,618 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 19:44:16,627 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 19:44:16,629 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 19:44:17,131 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-20 19:44:17,377 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-20 19:44:17,577 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-20 19:44:17,692 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 19:44:17,826 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 19:44:17,833 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-20 19:44:18,270 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2019-09-20 19:44:18,407 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-20 19:44:19,018 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-09-20 19:44:19,484 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-20 19:44:19,782 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2019-09-20 19:44:20,088 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 19:44:20,235 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:21,106 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2019-09-20 19:44:21,261 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 19:44:21,437 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:21,583 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:21,819 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 19:44:21,941 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 19:44:22,344 WARN L191 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2019-09-20 19:44:22,473 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 19:44:22,623 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:22,758 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:23,126 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2019-09-20 19:44:23,250 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 19:44:23,385 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:23,527 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:23,797 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 19:44:23,910 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 19:44:24,071 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:24,196 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:24,565 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2019-09-20 19:44:24,692 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 19:44:24,859 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:24,987 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 19:44:25,368 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2019-09-20 19:44:25,478 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-20 19:44:25,832 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-20 19:44:25,949 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-20 19:44:26,622 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 19:44:26,947 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 19:44:27,443 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-20 19:44:27,560 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 90 for LOIs [2019-09-20 19:44:28,043 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2019-09-20 19:44:28,201 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-20 19:44:28,252 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 113 for LOIs [2019-09-20 19:44:28,257 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 113 for LOIs [2019-09-20 19:44:28,263 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 15 for LOIs [2019-09-20 19:44:28,322 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 18 for LOIs [2019-09-20 19:44:28,349 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 19:44:28,349 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 19:44:28,352 INFO L193 IcfgInterpreter]: Reachable states at location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 431#(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 19:44:28,366 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 19:44:28,366 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 19:44:28,368 INFO L168 Benchmark]: Toolchain (without parser) took 14086.63 ms. Allocated memory was 135.3 MB in the beginning and 480.2 MB in the end (delta: 345.0 MB). Free memory was 82.0 MB in the beginning and 275.0 MB in the end (delta: -193.0 MB). Peak memory consumption was 151.9 MB. Max. memory is 7.1 GB. [2019-09-20 19:44:28,369 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 19:44:28,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1215.37 ms. Allocated memory was 135.3 MB in the beginning and 220.2 MB in the end (delta: 84.9 MB). Free memory was 82.0 MB in the beginning and 141.5 MB in the end (delta: -59.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2019-09-20 19:44:28,377 INFO L168 Benchmark]: Boogie Preprocessor took 114.37 ms. Allocated memory is still 220.2 MB. Free memory was 141.5 MB in the beginning and 137.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 19:44:28,381 INFO L168 Benchmark]: RCFGBuilder took 972.29 ms. Allocated memory was 220.2 MB in the beginning and 263.7 MB in the end (delta: 43.5 MB). Free memory was 137.8 MB in the beginning and 221.6 MB in the end (delta: -83.9 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. [2019-09-20 19:44:28,381 INFO L168 Benchmark]: Sifa took 11780.70 ms. Allocated memory was 263.7 MB in the beginning and 480.2 MB in the end (delta: 216.5 MB). Free memory was 221.6 MB in the beginning and 275.0 MB in the end (delta: -53.4 MB). Peak memory consumption was 163.1 MB. Max. memory is 7.1 GB. [2019-09-20 19:44:28,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1215.37 ms. Allocated memory was 135.3 MB in the beginning and 220.2 MB in the end (delta: 84.9 MB). Free memory was 82.0 MB in the beginning and 141.5 MB in the end (delta: -59.5 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.37 ms. Allocated memory is still 220.2 MB. Free memory was 141.5 MB in the beginning and 137.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 972.29 ms. Allocated memory was 220.2 MB in the beginning and 263.7 MB in the end (delta: 43.5 MB). Free memory was 137.8 MB in the beginning and 221.6 MB in the end (delta: -83.9 MB). Peak memory consumption was 78.5 MB. Max. memory is 7.1 GB. * Sifa took 11780.70 ms. Allocated memory was 263.7 MB in the beginning and 480.2 MB in the end (delta: 216.5 MB). Free memory was 221.6 MB in the beginning and 275.0 MB in the end (delta: -53.4 MB). Peak memory consumption was 163.1 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]: 11742, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 319, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 285, TOOLS_POST_TIME[ms]: 1064, TOOLS_POST_CALL_APPLICATIONS: 26, TOOLS_POST_CALL_TIME[ms]: 112, TOOLS_POST_RETURN_APPLICATIONS: 19, TOOLS_POST_RETURN_TIME[ms]: 31, TOOLS_QUANTIFIERELIM_APPLICATIONS: 329, TOOLS_QUANTIFIERELIM_TIME[ms]: 1110, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 446, FLUID_QUERY_TIME[ms]: 16, FLUID_QUERIES: 328, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 41, DOMAIN_JOIN_TIME[ms]: 7801, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 2526, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME[ms]: 33, DOMAIN_ISBOTTOM_APPLICATIONS: 15, DOMAIN_ISBOTTOM_TIME[ms]: 30, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 7016, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7016, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, CALL_SUMMARIZER_APPLICATIONS: 19, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2588, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2587, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 39, DAG_COMPRESSION_PROCESSED_NODES: 536, DAG_COMPRESSION_RETAINED_NODES: 277 - 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 431#(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...