/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 08:13:42,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 08:13:42,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 08:13:42,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 08:13:42,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 08:13:42,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 08:13:42,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 08:13:42,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 08:13:42,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 08:13:42,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 08:13:42,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 08:13:42,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 08:13:42,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 08:13:42,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 08:13:42,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 08:13:42,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 08:13:42,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 08:13:42,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 08:13:42,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 08:13:42,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 08:13:42,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 08:13:42,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 08:13:42,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 08:13:42,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 08:13:42,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 08:13:42,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 08:13:42,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 08:13:42,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 08:13:42,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 08:13:42,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 08:13:42,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 08:13:42,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 08:13:42,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 08:13:42,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 08:13:42,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 08:13:42,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 08:13:42,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 08:13:42,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 08:13:42,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 08:13:42,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 08:13:42,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 08:13:42,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 08:13:42,152 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 08:13:42,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 08:13:42,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 08:13:42,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 08:13:42,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 08:13:42,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 08:13:42,154 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 08:13:42,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 08:13:42,154 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 08:13:42,155 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 08:13:42,155 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 08:13:42,155 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 08:13:42,156 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 08:13:42,156 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 08:13:42,156 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 08:13:42,156 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 08:13:42,156 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 08:13:42,156 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 08:13:42,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 08:13:42,157 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 08:13:42,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 08:13:42,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 08:13:42,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 08:13:42,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 08:13:42,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 08:13:42,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 08:13:42,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 08:13:42,159 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 08:13:42,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 08:13:42,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 08:13:42,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 08:13:42,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 08:13:42,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 08:13:42,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 08:13:42,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 08:13:42,433 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 08:13:42,433 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 08:13:42,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i [2023-03-31 08:13:43,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 08:13:44,008 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 08:13:44,008 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i [2023-03-31 08:13:44,043 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16c300ea7/bbb88e85457f45f2bad3efa5ac9cb16a/FLAG17235741d [2023-03-31 08:13:44,065 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16c300ea7/bbb88e85457f45f2bad3efa5ac9cb16a [2023-03-31 08:13:44,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 08:13:44,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 08:13:44,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 08:13:44,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 08:13:44,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 08:13:44,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 08:13:44" (1/1) ... [2023-03-31 08:13:44,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1ec1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:44, skipping insertion in model container [2023-03-31 08:13:44,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 08:13:44" (1/1) ... [2023-03-31 08:13:44,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 08:13:44,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 08:13:44,960 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i[183784,183797] [2023-03-31 08:13:45,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 08:13:45,037 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 08:13:45,263 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--ppp--pppox.ko-entry_point.cil.out.i[183784,183797] [2023-03-31 08:13:45,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 08:13:45,316 INFO L208 MainTranslator]: Completed translation [2023-03-31 08:13:45,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45 WrapperNode [2023-03-31 08:13:45,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 08:13:45,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 08:13:45,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 08:13:45,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 08:13:45,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 08:13:45,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 08:13:45,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 08:13:45,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 08:13:45,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 08:13:45" (1/1) ... [2023-03-31 08:13:45,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 08:13:45,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 08:13:45,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 08:13:45,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 08:13:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 08:13:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 08:13:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-03-31 08:13:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-03-31 08:13:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_sk [2023-03-31 08:13:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pppox_proto [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pppox_proto [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_unbind_sock [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_ioctl [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_5 [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_6 [2023-03-31 08:13:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2023-03-31 08:13:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock_nested [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2023-03-31 08:13:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2023-03-31 08:13:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_register [2023-03-31 08:13:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_unregister [2023-03-31 08:13:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-03-31 08:13:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-03-31 08:13:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 08:13:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 08:13:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-03-31 08:13:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-03-31 08:13:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2023-03-31 08:13:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_5 [2023-03-31 08:13:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_6 [2023-03-31 08:13:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-03-31 08:13:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-03-31 08:13:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-03-31 08:13:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock_nested [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2023-03-31 08:13:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_sk [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure register_pppox_proto [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pppox_proto [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_unbind_sock [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_ioctl [2023-03-31 08:13:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 08:13:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2023-03-31 08:13:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 08:13:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-03-31 08:13:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 08:13:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 08:13:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 08:13:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 08:13:45,825 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 08:13:45,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 08:13:46,065 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-03-31 08:13:46,084 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2023-03-31 08:13:46,400 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 08:13:46,592 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 08:13:46,594 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 08:13:46,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 08:13:46 BoogieIcfgContainer [2023-03-31 08:13:46,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 08:13:46,603 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 08:13:46,603 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 08:13:46,604 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 08:13:46,605 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 08:13:46" (1/1) ... [2023-03-31 08:13:46,605 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 08:13:46,637 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 08:13:46,637 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 08:13:46,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 08:13:46,650 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 08:13:46,651 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 08:13:48,629 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 383 for LOIs [2023-03-31 08:14:00,459 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 73 for LOIs [2023-03-31 08:14:00,497 INFO L197 IcfgInterpreter]: Interpreting procedure pppox_create with input of size 89 for LOIs [2023-03-31 08:14:00,926 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put_6 with input of size 113 for LOIs [2023-03-31 08:14:00,959 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_module_put with input of size 113 for LOIs [2023-03-31 08:14:01,018 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 69 for LOIs [2023-03-31 08:14:01,022 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 08:14:01,033 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 08:14:01,033 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 08:14:01,034 INFO L158 Benchmark]: Toolchain (without parser) took 16964.92ms. Allocated memory was 296.7MB in the beginning and 1.3GB in the end (delta: 981.5MB). Free memory was 242.3MB in the beginning and 563.0MB in the end (delta: -320.7MB). Peak memory consumption was 661.7MB. Max. memory is 8.0GB. [2023-03-31 08:14:01,035 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 08:14:01,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1244.68ms. Allocated memory is still 296.7MB. Free memory was 242.3MB in the beginning and 234.7MB in the end (delta: 7.6MB). Peak memory consumption was 107.2MB. Max. memory is 8.0GB. [2023-03-31 08:14:01,035 INFO L158 Benchmark]: Boogie Preprocessor took 103.01ms. Allocated memory is still 296.7MB. Free memory was 234.1MB in the beginning and 228.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-03-31 08:14:01,036 INFO L158 Benchmark]: RCFGBuilder took 1181.14ms. Allocated memory was 296.7MB in the beginning and 402.7MB in the end (delta: 105.9MB). Free memory was 228.9MB in the beginning and 330.8MB in the end (delta: -101.9MB). Peak memory consumption was 64.3MB. Max. memory is 8.0GB. [2023-03-31 08:14:01,037 INFO L158 Benchmark]: Sifa took 14430.09ms. Allocated memory was 402.7MB in the beginning and 1.3GB in the end (delta: 875.6MB). Free memory was 330.8MB in the beginning and 563.0MB in the end (delta: -232.2MB). Peak memory consumption was 643.3MB. Max. memory is 8.0GB. [2023-03-31 08:14:01,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1244.68ms. Allocated memory is still 296.7MB. Free memory was 242.3MB in the beginning and 234.7MB in the end (delta: 7.6MB). Peak memory consumption was 107.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 103.01ms. Allocated memory is still 296.7MB. Free memory was 234.1MB in the beginning and 228.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1181.14ms. Allocated memory was 296.7MB in the beginning and 402.7MB in the end (delta: 105.9MB). Free memory was 228.9MB in the beginning and 330.8MB in the end (delta: -101.9MB). Peak memory consumption was 64.3MB. Max. memory is 8.0GB. * Sifa took 14430.09ms. Allocated memory was 402.7MB in the beginning and 1.3GB in the end (delta: 875.6MB). Free memory was 330.8MB in the beginning and 563.0MB in the end (delta: -232.2MB). Peak memory consumption was 643.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 14.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 7, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 67, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 258, TOOLS_POST_TIME: 7.0s, TOOLS_POST_CALL_APPLICATIONS: 51, TOOLS_POST_CALL_TIME: 3.4s, TOOLS_POST_RETURN_APPLICATIONS: 44, TOOLS_POST_RETURN_TIME: 3.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 334, TOOLS_QUANTIFIERELIM_TIME: 13.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.8s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 371, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 63, DOMAIN_JOIN_TIME: 0.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 67, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 3.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 3.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, CALL_SUMMARIZER_APPLICATIONS: 44, CALL_SUMMARIZER_CACHE_MISSES: 21, CALL_SUMMARIZER_OVERALL_TIME: 0.8s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.8s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 2328, DAG_COMPRESSION_RETAINED_NODES: 331 - UnprovableResult [Line: 6264]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 421#(and (= ~__ksymtab_register_pppox_proto~0.name.base 6) (= 0 |~#__kstrtab_register_pppox_proto~0.offset|) (<= 0 (+ ~ldv_retval_0~0 2147483648)) (<= 1 ~ldv_state_variable_0~0) (= ~LDV_IN_INTERRUPT~0 1) (= |~#__kstrtab_register_pppox_proto~0.base| 6) (= 7 ~__ksymtab_unregister_pppox_proto~0.name.base) (= 7 |~#__kstrtab_unregister_pppox_proto~0.base|) (= |~#__kstrtab_pppox_ioctl~0.base| 9) (= ~__ksymtab_unregister_pppox_proto~0.name.offset 0) (= |~#__kstrtab_pppox_unbind_sock~0.offset| 0) (<= 0 ~ldv_state_variable_1~0) (<= ~ldv_retval_0~0 2147483647) (= 5 |~#pppox_protos~0.base|) (= 9 ~__ksymtab_pppox_ioctl~0.name.base) (= ~ref_cnt~0 0) (= |~#__kstrtab_pppox_unbind_sock~0.base| 8) (= |~#pppox_proto_family~0.offset| 0) (= ~__ksymtab_pppox_unbind_sock~0.name.base 8) (= |#NULL.offset| 0) (= ~__ksymtab_register_pppox_proto~0.name.offset 0) (= |~#pppox_protos~0.offset| 0) (= |~#__kstrtab_unregister_pppox_proto~0.offset| 0) (= |~#pppox_proto_family~0.base| 10) (= ~__ksymtab_pppox_unbind_sock~0.name.offset 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= ~__ksymtab_pppox_ioctl~0.name.offset 0) (= |~#__kstrtab_pppox_ioctl~0.offset| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 08:14:01,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...