java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 14:26:04,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 14:26:04,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 14:26:04,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 14:26:04,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 14:26:04,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 14:26:04,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 14:26:04,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 14:26:04,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 14:26:04,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 14:26:04,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 14:26:04,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 14:26:04,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 14:26:04,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 14:26:04,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 14:26:04,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 14:26:04,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 14:26:04,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 14:26:04,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 14:26:04,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 14:26:04,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 14:26:04,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 14:26:04,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 14:26:04,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 14:26:04,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 14:26:04,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 14:26:04,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 14:26:04,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 14:26:04,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 14:26:04,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 14:26:04,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 14:26:04,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 14:26:04,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 14:26:04,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 14:26:04,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 14:26:04,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 14:26:04,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 14:26:04,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 14:26:04,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 14:26:04,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 14:26:04,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 14:26:04,205 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 14:26:04,225 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 14:26:04,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 14:26:04,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 14:26:04,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 14:26:04,228 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 14:26:04,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 14:26:04,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 14:26:04,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 14:26:04,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 14:26:04,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 14:26:04,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 14:26:04,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 14:26:04,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 14:26:04,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 14:26:04,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 14:26:04,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 14:26:04,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 14:26:04,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 14:26:04,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 14:26:04,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 14:26:04,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 14:26:04,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 14:26:04,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 14:26:04,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 14:26:04,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 14:26:04,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 14:26:04,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 14:26:04,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 14:26:04,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 14:26:04,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 14:26:04,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 14:26:04,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 14:26:04,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 14:26:04,293 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 14:26:04,294 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 14:26:04,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9b4289d/29de6b9c7ee5434aa2b300529c712c70/FLAG588deceba [2019-09-20 14:26:05,058 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 14:26:05,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2019-09-20 14:26:05,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9b4289d/29de6b9c7ee5434aa2b300529c712c70/FLAG588deceba [2019-09-20 14:26:05,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9b4289d/29de6b9c7ee5434aa2b300529c712c70 [2019-09-20 14:26:05,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 14:26:05,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 14:26:05,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 14:26:05,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 14:26:05,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 14:26:05,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:26:05" (1/1) ... [2019-09-20 14:26:05,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2dfa5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:05, skipping insertion in model container [2019-09-20 14:26:05,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:26:05" (1/1) ... [2019-09-20 14:26:05,221 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 14:26:05,337 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 14:26:06,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:26:06,343 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 14:26:06,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:26:06,559 INFO L192 MainTranslator]: Completed translation [2019-09-20 14:26:06,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06 WrapperNode [2019-09-20 14:26:06,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 14:26:06,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 14:26:06,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 14:26:06,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 14:26:06,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (1/1) ... [2019-09-20 14:26:06,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 14:26:06,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 14:26:06,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 14:26:06,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 14:26:06,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:26:06" (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 14:26:06,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 14:26:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 14:26:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 14:26:06,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 14:26:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2019-09-20 14:26:06,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2019-09-20 14:26:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2019-09-20 14:26:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2019-09-20 14:26:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2019-09-20 14:26:06,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2019-09-20 14:26:06,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2019-09-20 14:26:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2019-09-20 14:26:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2019-09-20 14:26:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 14:26:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-09-20 14:26:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-09-20 14:26:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-09-20 14:26:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2019-09-20 14:26:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_int [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-09-20 14:26:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2019-09-20 14:26:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2019-09-20 14:26:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2019-09-20 14:26:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-20 14:26:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-20 14:26:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-09-20 14:26:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-09-20 14:26:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-09-20 14:26:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2019-09-20 14:26:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2019-09-20 14:26:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2019-09-20 14:26:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 14:26:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 14:26:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-09-20 14:26:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2019-09-20 14:26:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 14:26:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-20 14:26:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 14:26:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-20 14:26:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 14:26:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 14:26:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 14:26:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 14:26:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 14:26:07,433 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 14:26:07,531 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-09-20 14:26:07,531 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-09-20 14:26:07,531 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-20 14:26:07,531 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-20 14:26:07,532 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-20 14:26:07,563 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2019-09-20 14:26:07,564 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2019-09-20 14:26:07,673 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-09-20 14:26:08,372 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 14:26:08,372 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 14:26:08,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:26:08 BoogieIcfgContainer [2019-09-20 14:26:08,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 14:26:08,374 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 14:26:08,375 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 14:26:08,375 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 14:26:08,376 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:26:08" (1/1) ... [2019-09-20 14:26:08,377 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 14:26:08,408 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 14:26:08,409 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 14:26:08,417 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 14:26:08,426 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 14:26:08,428 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 14:26:08,776 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-20 14:26:09,151 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-20 14:26:09,309 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 14:26:09,440 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-20 14:26:09,448 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 93 for LOIs [2019-09-20 14:26:09,967 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 14:26:10,134 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:26:10,998 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-20 14:26:11,100 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-20 14:26:11,396 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-20 14:26:11,760 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 14:26:11,921 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:12,384 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 14:26:12,536 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 14:26:12,701 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:12,879 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:13,223 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2019-09-20 14:26:13,370 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 14:26:13,698 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2019-09-20 14:26:13,861 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:14,338 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2019-09-20 14:26:14,478 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-09-20 14:26:14,670 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:14,825 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:15,726 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2019-09-20 14:26:16,181 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-20 14:26:17,079 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2019-09-20 14:26:17,481 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-20 14:26:18,026 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-20 14:26:18,141 INFO L199 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 94 for LOIs [2019-09-20 14:26:18,177 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put_2 with input of size 117 for LOIs [2019-09-20 14:26:18,183 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 117 for LOIs [2019-09-20 14:26:18,193 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 15 for LOIs [2019-09-20 14:26:18,281 INFO L199 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 18 for LOIs [2019-09-20 14:26:18,313 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 14:26:18,313 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 14:26:18,316 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 14:26:18,333 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 14:26:18,333 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 14:26:18,335 INFO L168 Benchmark]: Toolchain (without parser) took 13126.66 ms. Allocated memory was 136.8 MB in the beginning and 410.5 MB in the end (delta: 273.7 MB). Free memory was 78.8 MB in the beginning and 133.6 MB in the end (delta: -54.8 MB). Peak memory consumption was 218.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,336 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1351.84 ms. Allocated memory was 136.8 MB in the beginning and 218.1 MB in the end (delta: 81.3 MB). Free memory was 78.6 MB in the beginning and 143.7 MB in the end (delta: -65.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,338 INFO L168 Benchmark]: Boogie Preprocessor took 82.85 ms. Allocated memory is still 218.1 MB. Free memory was 143.7 MB in the beginning and 139.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,339 INFO L168 Benchmark]: RCFGBuilder took 1729.72 ms. Allocated memory was 218.1 MB in the beginning and 271.6 MB in the end (delta: 53.5 MB). Free memory was 139.5 MB in the beginning and 213.8 MB in the end (delta: -74.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,340 INFO L168 Benchmark]: Sifa took 9958.54 ms. Allocated memory was 271.6 MB in the beginning and 410.5 MB in the end (delta: 138.9 MB). Free memory was 213.8 MB in the beginning and 133.6 MB in the end (delta: 80.2 MB). Peak memory consumption was 219.1 MB. Max. memory is 7.1 GB. [2019-09-20 14:26:18,343 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 136.8 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1351.84 ms. Allocated memory was 136.8 MB in the beginning and 218.1 MB in the end (delta: 81.3 MB). Free memory was 78.6 MB in the beginning and 143.7 MB in the end (delta: -65.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.85 ms. Allocated memory is still 218.1 MB. Free memory was 143.7 MB in the beginning and 139.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1729.72 ms. Allocated memory was 218.1 MB in the beginning and 271.6 MB in the end (delta: 53.5 MB). Free memory was 139.5 MB in the beginning and 213.8 MB in the end (delta: -74.3 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * Sifa took 9958.54 ms. Allocated memory was 271.6 MB in the beginning and 410.5 MB in the end (delta: 138.9 MB). Free memory was 213.8 MB in the beginning and 133.6 MB in the end (delta: 80.2 MB). Peak memory consumption was 219.1 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]: 9908, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 116, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 84, TOOLS_POST_TIME[ms]: 751, TOOLS_POST_CALL_APPLICATIONS: 25, TOOLS_POST_CALL_TIME[ms]: 89, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 34, TOOLS_QUANTIFIERELIM_APPLICATIONS: 127, TOOLS_QUANTIFIERELIM_TIME[ms]: 819, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 673, FLUID_QUERY_TIME[ms]: 13, FLUID_QUERIES: 122, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME[ms]: 7631, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 1217, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 34, DOMAIN_ISBOTTOM_APPLICATIONS: 10, DOMAIN_ISBOTTOM_TIME[ms]: 27, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 4011, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4010, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 14, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2300, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2299, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 30, 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...