./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66690b8f2afac00b38604fc5fd1edb6c2524e6892200d6512ef98cf0032d8df1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-25 01:09:52,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-25 01:09:52,705 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-25 01:09:52,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-25 01:09:52,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-25 01:09:52,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-25 01:09:52,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-25 01:09:52,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-25 01:09:52,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-25 01:09:52,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-25 01:09:52,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-25 01:09:52,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-25 01:09:52,758 INFO L153 SettingsManager]: * Use SBE=true [2024-10-25 01:09:52,758 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-25 01:09:52,762 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-25 01:09:52,762 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-25 01:09:52,763 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-25 01:09:52,763 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-25 01:09:52,763 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-25 01:09:52,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-25 01:09:52,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-25 01:09:52,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-25 01:09:52,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-25 01:09:52,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-25 01:09:52,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-25 01:09:52,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-25 01:09:52,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-25 01:09:52,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-25 01:09:52,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-25 01:09:52,774 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-25 01:09:52,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-25 01:09:52,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-25 01:09:52,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-25 01:09:52,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-25 01:09:52,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-25 01:09:52,775 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-25 01:09:52,775 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66690b8f2afac00b38604fc5fd1edb6c2524e6892200d6512ef98cf0032d8df1 [2024-10-25 01:09:53,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-25 01:09:53,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-25 01:09:53,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-25 01:09:53,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-25 01:09:53,227 INFO L274 PluginConnector]: CDTParser initialized [2024-10-25 01:09:53,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2024-10-25 01:09:54,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-25 01:09:55,045 INFO L384 CDTParser]: Found 1 translation units. [2024-10-25 01:09:55,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2024-10-25 01:09:55,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf16c7ef/8e9cf13471524d5cac6d38ab9224e33f/FLAGfb000cd68 [2024-10-25 01:09:55,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cf16c7ef/8e9cf13471524d5cac6d38ab9224e33f [2024-10-25 01:09:55,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-25 01:09:55,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-25 01:09:55,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-25 01:09:55,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-25 01:09:55,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-25 01:09:55,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ef2711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55, skipping insertion in model container [2024-10-25 01:09:55,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,151 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-25 01:09:55,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 01:09:55,634 INFO L200 MainTranslator]: Completed pre-run [2024-10-25 01:09:55,733 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4823-4824] [2024-10-25 01:09:55,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4826-4827] [2024-10-25 01:09:55,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4830-4831] [2024-10-25 01:09:55,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4833-4834] [2024-10-25 01:09:55,737 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4837-4838] [2024-10-25 01:09:55,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-25 01:09:55,779 INFO L204 MainTranslator]: Completed translation [2024-10-25 01:09:55,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55 WrapperNode [2024-10-25 01:09:55,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-25 01:09:55,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-25 01:09:55,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-25 01:09:55,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-25 01:09:55,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,828 INFO L138 Inliner]: procedures = 49, calls = 67, calls flagged for inlining = 29, calls inlined = 20, statements flattened = 188 [2024-10-25 01:09:55,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-25 01:09:55,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-25 01:09:55,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-25 01:09:55,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-25 01:09:55,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,873 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 3, 9, 3]. 53 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 4, 3]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-25 01:09:55,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-25 01:09:55,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-25 01:09:55,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-25 01:09:55,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-25 01:09:55,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (1/1) ... [2024-10-25 01:09:55,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-25 01:09:55,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-25 01:09:55,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-25 01:09:55,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-25 01:09:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-25 01:09:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-25 01:09:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-25 01:09:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-25 01:09:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-25 01:09:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-25 01:09:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-25 01:09:55,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-25 01:09:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-25 01:09:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-25 01:09:56,148 INFO L238 CfgBuilder]: Building ICFG [2024-10-25 01:09:56,149 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-25 01:09:56,157 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-25 01:09:56,270 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2024-10-25 01:09:56,270 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2024-10-25 01:09:56,285 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-10-25 01:09:56,286 INFO L287 CfgBuilder]: Performing block encoding [2024-10-25 01:09:56,295 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-25 01:09:56,295 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-25 01:09:56,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:09:56 BoogieIcfgContainer [2024-10-25 01:09:56,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-25 01:09:56,296 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-25 01:09:56,296 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-25 01:09:56,299 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-25 01:09:56,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 01:09:56,299 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.10 01:09:55" (1/3) ... [2024-10-25 01:09:56,300 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1217b7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 01:09:56, skipping insertion in model container [2024-10-25 01:09:56,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 01:09:56,300 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:09:55" (2/3) ... [2024-10-25 01:09:56,300 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1217b7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.10 01:09:56, skipping insertion in model container [2024-10-25 01:09:56,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-25 01:09:56,300 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:09:56" (3/3) ... [2024-10-25 01:09:56,301 INFO L332 chiAutomizerObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2024-10-25 01:09:56,336 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-25 01:09:56,336 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-25 01:09:56,336 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-25 01:09:56,336 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-25 01:09:56,337 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-25 01:09:56,337 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-25 01:09:56,337 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-25 01:09:56,337 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-25 01:09:56,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 01:09:56,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2024-10-25 01:09:56,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 01:09:56,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 01:09:56,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-25 01:09:56,356 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-25 01:09:56,379 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-25 01:09:56,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 48 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-25 01:09:56,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2024-10-25 01:09:56,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-25 01:09:56,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-25 01:09:56,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-25 01:09:56,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-25 01:09:56,386 INFO L745 eck$LassoCheckResult]: Stem: 43#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(46, 2);call #Ultimate.allocInit(15, 3);call #Ultimate.allocInit(32, 4);~#pppox_protos~0.base, ~#pppox_protos~0.offset := 4, 0;call write~init~$Pointer$#2(0, 0, ~#pppox_protos~0.base, ~#pppox_protos~0.offset, 8);call write~init~$Pointer$#2(0, 0, ~#pppox_protos~0.base, 8 + ~#pppox_protos~0.offset, 8);call write~init~$Pointer$#2(0, 0, ~#pppox_protos~0.base, 16 + ~#pppox_protos~0.offset, 8);call write~init~$Pointer$#2(0, 0, ~#pppox_protos~0.base, 24 + ~#pppox_protos~0.offset, 8);call #Ultimate.allocInit(20, 5);~#pppox_proto_family~0.base, ~#pppox_proto_family~0.offset := 5, 0;call write~init~int#3(24, ~#pppox_proto_family~0.base, ~#pppox_proto_family~0.offset, 4);call write~init~$Pointer$#3(#funAddr~pppox_create.base, #funAddr~pppox_create.offset, ~#pppox_proto_family~0.base, 4 + ~#pppox_proto_family~0.offset, 8);call write~init~$Pointer$#3(~#__this_module~0.base, ~#__this_module~0.offset, ~#pppox_proto_family~0.base, 12 + ~#pppox_proto_family~0.offset, 8);~LDV_IN_INTERRUPT~0 := 0;~ldv_module_refcounter~0 := 1; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_#t~nondet51#1, main_#t~ret52#1, main_#t~nondet53#1, main_~var_group1~0#1.base, main_~var_group1~0#1.offset, main_~var_group2~0#1.base, main_~var_group2~0#1.offset, main_~var_pppox_create_4_p2~0#1, main_~var_pppox_create_4_p3~0#1, main_~tmp~4#1, main_~tmp___0~1#1, main_~tmp___1~0#1;havoc main_~var_group1~0#1.base, main_~var_group1~0#1.offset;havoc main_~var_group2~0#1.base, main_~var_group2~0#1.offset;havoc main_~var_pppox_create_4_p2~0#1;havoc main_~var_pppox_create_4_p3~0#1;havoc main_~tmp~4#1;havoc main_~tmp___0~1#1;havoc main_~tmp___1~0#1;~LDV_IN_INTERRUPT~0 := 1;assume { :begin_inline_ldv_initialize } true; 48#ldv_initialize_returnLabel#1true assume { :end_inline_ldv_initialize } true;assume { :begin_inline_pppox_init } true;havoc pppox_init_#res#1;havoc pppox_init_#t~ret49#1, pppox_init_~tmp~3#1;havoc pppox_init_~tmp~3#1;assume { :begin_inline_sock_register } true;sock_register_#in~arg0#1.base, sock_register_#in~arg0#1.offset := ~#pppox_proto_family~0.base, ~#pppox_proto_family~0.offset;havoc sock_register_#res#1;havoc sock_register_#t~nondet59#1, sock_register_~arg0#1.base, sock_register_~arg0#1.offset;sock_register_~arg0#1.base, sock_register_~arg0#1.offset := sock_register_#in~arg0#1.base, sock_register_#in~arg0#1.offset;havoc sock_register_#t~nondet59#1;sock_register_#res#1 := sock_register_#t~nondet59#1;havoc sock_register_#t~nondet59#1; 44#sock_register_returnLabel#1true pppox_init_#t~ret49#1 := sock_register_#res#1;havoc sock_register_#t~nondet59#1, sock_register_~arg0#1.base, sock_register_~arg0#1.offset;havoc sock_register_#in~arg0#1.base, sock_register_#in~arg0#1.offset;assume { :end_inline_sock_register } true;pppox_init_~tmp~3#1 := pppox_init_#t~ret49#1;havoc pppox_init_#t~ret49#1;pppox_init_#res#1 := pppox_init_~tmp~3#1; 36#pppox_init_returnLabel#1true main_#t~ret50#1 := pppox_init_#res#1;havoc pppox_init_#t~ret49#1, pppox_init_~tmp~3#1;assume { :end_inline_pppox_init } true;main_~tmp~4#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 38#L4947true assume !(0 != main_~tmp~4#1); 47#L4971true [2024-10-25 01:09:56,387 INFO L747 eck$LassoCheckResult]: Loop: 47#L4971true havoc main_#t~nondet53#1;main_~tmp___1~0#1 := main_#t~nondet53#1;havoc main_#t~nondet53#1; 25#L4976true assume 0 != main_~tmp___1~0#1; 21#main_ldv_38480#1true havoc main_#t~nondet51#1;main_~tmp___0~1#1 := main_#t~nondet51#1;havoc main_#t~nondet51#1; 20#L4956true assume !(0 == main_~tmp___0~1#1); 47#L4971true [2024-10-25 01:09:56,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 01:09:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 889475914, now seen corresponding path program 1 times [2024-10-25 01:09:56,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 01:09:56,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70936736] [2024-10-25 01:09:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 01:09:56,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 01:09:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 01:09:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 01:09:56,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 01:09:56,552 INFO L85 PathProgramCache]: Analyzing trace with hash 4217353, now seen corresponding path program 1 times [2024-10-25 01:09:56,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 01:09:56,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344505145] [2024-10-25 01:09:56,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 01:09:56,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 01:09:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 01:09:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 01:09:56,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-25 01:09:56,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1461198638, now seen corresponding path program 1 times [2024-10-25 01:09:56,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-25 01:09:56,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166214955] [2024-10-25 01:09:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-25 01:09:56,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-25 01:09:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 01:09:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:56,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-25 01:09:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:57,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-25 01:09:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-25 01:09:57,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.10 01:09:57 BoogieIcfgContainer [2024-10-25 01:09:57,121 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-25 01:09:57,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-25 01:09:57,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-25 01:09:57,122 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-25 01:09:57,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:09:56" (3/4) ... [2024-10-25 01:09:57,123 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-25 01:09:57,152 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-25 01:09:57,152 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-25 01:09:57,153 INFO L158 Benchmark]: Toolchain (without parser) took 2068.10ms. Allocated memory was 169.9MB in the beginning and 216.0MB in the end (delta: 46.1MB). Free memory was 108.5MB in the beginning and 73.4MB in the end (delta: 35.1MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,153 INFO L158 Benchmark]: CDTParser took 3.83ms. Allocated memory is still 100.7MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-25 01:09:57,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.60ms. Allocated memory is still 169.9MB. Free memory was 108.5MB in the beginning and 82.5MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 169.9MB. Free memory was 82.5MB in the beginning and 80.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,154 INFO L158 Benchmark]: Boogie Preprocessor took 68.62ms. Allocated memory is still 169.9MB. Free memory was 80.6MB in the beginning and 77.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,155 INFO L158 Benchmark]: RCFGBuilder took 394.19ms. Allocated memory is still 169.9MB. Free memory was 76.4MB in the beginning and 55.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,155 INFO L158 Benchmark]: BuchiAutomizer took 825.32ms. Allocated memory was 169.9MB in the beginning and 216.0MB in the end (delta: 46.1MB). Free memory was 55.4MB in the beginning and 75.5MB in the end (delta: -20.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,155 INFO L158 Benchmark]: Witness Printer took 30.48ms. Allocated memory is still 216.0MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-25 01:09:57,157 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.83ms. Allocated memory is still 100.7MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.60ms. Allocated memory is still 169.9MB. Free memory was 108.5MB in the beginning and 82.5MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 169.9MB. Free memory was 82.5MB in the beginning and 80.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.62ms. Allocated memory is still 169.9MB. Free memory was 80.6MB in the beginning and 77.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.19ms. Allocated memory is still 169.9MB. Free memory was 76.4MB in the beginning and 55.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 825.32ms. Allocated memory was 169.9MB in the beginning and 216.0MB in the end (delta: 46.1MB). Free memory was 55.4MB in the beginning and 75.5MB in the end (delta: -20.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 30.48ms. Allocated memory is still 216.0MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 4823]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4823-4824] - GenericResultAtLocation [Line: 4826]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4826-4827] - GenericResultAtLocation [Line: 4830]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4830-4831] - GenericResultAtLocation [Line: 4833]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4833-4834] - GenericResultAtLocation [Line: 4837]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [4837-4838] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 4941]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4932] int LDV_IN_INTERRUPT ; [L4999] int ldv_module_refcounter = 1; VAL [LDV_IN_INTERRUPT=0, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] [L4934] struct net *var_group1 ; [L4935] struct socket *var_group2 ; [L4936] int var_pppox_create_4_p2 ; [L4937] int var_pppox_create_4_p3 ; [L4938] int tmp ; [L4939] int tmp___0 ; [L4940] int tmp___1 ; [L4943] LDV_IN_INTERRUPT = 1 [L4944] FCALL ldv_initialize() [L4945] CALL, EXPR pppox_init() [L4912] int tmp ; [L4915] CALL, EXPR sock_register(& pppox_proto_family) [L5119] return __VERIFIER_nondet_int(); [L4915] RET, EXPR sock_register(& pppox_proto_family) [L4915] tmp = sock_register(& pppox_proto_family) [L4917] return (tmp); VAL [LDV_IN_INTERRUPT=1, \result=0, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] [L4945] RET, EXPR pppox_init() [L4945] tmp = pppox_init() [L4947] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] Loop: [L4974] tmp___1 = __VERIFIER_nondet_int() [L4976] COND TRUE tmp___1 != 0 [L4954] tmp___0 = __VERIFIER_nondet_int() [L4956] COND FALSE !(tmp___0 == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 4941]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4739] static struct pppox_proto const *pppox_protos[4U] ; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4910] static struct net_proto_family const pppox_proto_family = {24, & pppox_create, & __this_module}; [L4932] int LDV_IN_INTERRUPT ; [L4999] int ldv_module_refcounter = 1; VAL [LDV_IN_INTERRUPT=0, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] [L4934] struct net *var_group1 ; [L4935] struct socket *var_group2 ; [L4936] int var_pppox_create_4_p2 ; [L4937] int var_pppox_create_4_p3 ; [L4938] int tmp ; [L4939] int tmp___0 ; [L4940] int tmp___1 ; [L4943] LDV_IN_INTERRUPT = 1 [L4944] FCALL ldv_initialize() [L4945] CALL, EXPR pppox_init() [L4912] int tmp ; [L4915] CALL, EXPR sock_register(& pppox_proto_family) [L5119] return __VERIFIER_nondet_int(); [L4915] RET, EXPR sock_register(& pppox_proto_family) [L4915] tmp = sock_register(& pppox_proto_family) [L4917] return (tmp); VAL [LDV_IN_INTERRUPT=1, \result=0, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] [L4945] RET, EXPR pppox_init() [L4945] tmp = pppox_init() [L4947] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, __this_module={7:6}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}] Loop: [L4974] tmp___1 = __VERIFIER_nondet_int() [L4976] COND TRUE tmp___1 != 0 [L4954] tmp___0 = __VERIFIER_nondet_int() [L4956] COND FALSE !(tmp___0 == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-25 01:09:57,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)