./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../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 0.3.0-?-e2fb8be-m [2025-03-09 08:07:11,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 08:07:11,610 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 08:07:11,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 08:07:11,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 08:07:11,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 08:07:11,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 08:07:11,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 08:07:11,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 08:07:11,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 08:07:11,640 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 08:07:11,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 08:07:11,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 08:07:11,641 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 08:07:11,641 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 08:07:11,641 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 08:07:11,641 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 08:07:11,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 08:07:11,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 08:07:11,643 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 08:07:11,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 08:07:11,643 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 08:07:11,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 08:07:11,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 08:07:11,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 08:07:11,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 08:07:11,644 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 08:07:11,644 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 [2025-03-09 08:07:11,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 08:07:11,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 08:07:11,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 08:07:11,876 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 08:07:11,876 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 08:07:11,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2025-03-09 08:07:12,960 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeba2aee/a2b7a01695e1490da0a9758da174d5b9/FLAGa83c3181c [2025-03-09 08:07:13,279 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 08:07:13,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2025-03-09 08:07:13,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeba2aee/a2b7a01695e1490da0a9758da174d5b9/FLAGa83c3181c [2025-03-09 08:07:13,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeba2aee/a2b7a01695e1490da0a9758da174d5b9 [2025-03-09 08:07:13,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 08:07:13,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 08:07:13,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 08:07:13,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 08:07:13,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 08:07:13,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 08:07:13" (1/1) ... [2025-03-09 08:07:13,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c1901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:13, skipping insertion in model container [2025-03-09 08:07:13,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 08:07:13" (1/1) ... [2025-03-09 08:07:13,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 08:07:13,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 08:07:13,929 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 08:07:14,026 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] [2025-03-09 08:07:14,027 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] [2025-03-09 08:07:14,027 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] [2025-03-09 08:07:14,027 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] [2025-03-09 08:07:14,028 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] [2025-03-09 08:07:14,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 08:07:14,088 INFO L204 MainTranslator]: Completed translation [2025-03-09 08:07:14,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14 WrapperNode [2025-03-09 08:07:14,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 08:07:14,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 08:07:14,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 08:07:14,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 08:07:14,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,128 INFO L138 Inliner]: procedures = 49, calls = 67, calls flagged for inlining = 29, calls inlined = 20, statements flattened = 186 [2025-03-09 08:07:14,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 08:07:14,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 08:07:14,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 08:07:14,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 08:07:14,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,158 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]. [2025-03-09 08:07:14,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,170 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 08:07:14,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 08:07:14,182 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 08:07:14,182 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 08:07:14,183 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (1/1) ... [2025-03-09 08:07:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 08:07:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 08:07:14,211 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) [2025-03-09 08:07:14,214 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 [2025-03-09 08:07:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-09 08:07:14,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-09 08:07:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-09 08:07:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 08:07:14,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 08:07:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 08:07:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 08:07:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 08:07:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 08:07:14,366 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 08:07:14,367 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 08:07:14,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5119: havoc sock_register_#t~nondet58#1; [2025-03-09 08:07:14,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5099: havoc ldv_undefined_int_#t~nondet56#1; [2025-03-09 08:07:14,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L5092: havoc __request_module_#t~nondet55#1; [2025-03-09 08:07:14,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4960: assume false; [2025-03-09 08:07:14,534 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4960: assume !false; [2025-03-09 08:07:14,554 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2025-03-09 08:07:14,554 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 08:07:14,562 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 08:07:14,562 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 08:07:14,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 08:07:14 BoogieIcfgContainer [2025-03-09 08:07:14,563 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 08:07:14,563 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 08:07:14,563 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 08:07:14,568 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 08:07:14,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 08:07:14,569 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 08:07:13" (1/3) ... [2025-03-09 08:07:14,570 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@398ded6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 08:07:14, skipping insertion in model container [2025-03-09 08:07:14,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 08:07:14,571 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 08:07:14" (2/3) ... [2025-03-09 08:07:14,571 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@398ded6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 08:07:14, skipping insertion in model container [2025-03-09 08:07:14,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 08:07:14,571 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 08:07:14" (3/3) ... [2025-03-09 08:07:14,572 INFO L363 chiAutomizerObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2025-03-09 08:07:14,598 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 08:07:14,598 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 08:07:14,598 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 08:07:14,598 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 08:07:14,598 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 08:07:14,598 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 08:07:14,599 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 08:07:14,599 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 08:07:14,602 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) [2025-03-09 08:07:14,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2025-03-09 08:07:14,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 08:07:14,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 08:07:14,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-09 08:07:14,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 08:07:14,619 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 08:07:14,619 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) [2025-03-09 08:07:14,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2025-03-09 08:07:14,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 08:07:14,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 08:07:14,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-03-09 08:07:14,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 08:07:14,624 INFO L752 eck$LassoCheckResult]: Stem: "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;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_#t~nondet50#1, main_#t~ret51#1, main_#t~nondet52#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;" "assume { :end_inline_ldv_initialize } true;assume { :begin_inline_pppox_init } true;havoc pppox_init_#res#1;havoc pppox_init_#t~ret48#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~nondet58#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~nondet58#1;sock_register_#res#1 := sock_register_#t~nondet58#1;havoc sock_register_#t~nondet58#1;" "pppox_init_#t~ret48#1 := sock_register_#res#1;havoc sock_register_#t~nondet58#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~ret48#1;havoc pppox_init_#t~ret48#1;pppox_init_#res#1 := pppox_init_~tmp~3#1;" "main_#t~ret49#1 := pppox_init_#res#1;havoc pppox_init_#t~ret48#1, pppox_init_~tmp~3#1;assume { :end_inline_pppox_init } true;main_~tmp~4#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume !(0 != main_~tmp~4#1);" [2025-03-09 08:07:14,624 INFO L754 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet52#1;main_~tmp___1~0#1 := main_#t~nondet52#1;havoc main_#t~nondet52#1;" "assume 0 != main_~tmp___1~0#1;" "havoc main_#t~nondet50#1;main_~tmp___0~1#1 := main_#t~nondet50#1;havoc main_#t~nondet50#1;" "assume !(0 == main_~tmp___0~1#1);" [2025-03-09 08:07:14,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 08:07:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash -479720388, now seen corresponding path program 1 times [2025-03-09 08:07:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 08:07:14,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187806433] [2025-03-09 08:07:14,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 08:07:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 08:07:14,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 08:07:14,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 08:07:14,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 08:07:14,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 08:07:14,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 08:07:14,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 08:07:14,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 08:07:14,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1570142, now seen corresponding path program 1 times [2025-03-09 08:07:14,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 08:07:14,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770939608] [2025-03-09 08:07:14,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 08:07:14,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 08:07:14,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 08:07:14,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 08:07:14,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,752 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 08:07:14,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 08:07:14,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 08:07:14,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 08:07:14,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 08:07:14,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1680249831, now seen corresponding path program 1 times [2025-03-09 08:07:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 08:07:14,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182442056] [2025-03-09 08:07:14,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 08:07:14,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 08:07:14,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 08:07:14,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 08:07:14,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,793 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 08:07:14,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 08:07:14,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 08:07:14,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:14,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:14,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 08:07:15,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 08:07:15,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 08:07:15,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:15,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:15,322 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 08:07:15,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 08:07:15,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 08:07:15,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 08:07:15,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 08:07:15,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 08:07:15 BoogieIcfgContainer [2025-03-09 08:07:15,363 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 08:07:15,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 08:07:15,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 08:07:15,364 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 08:07:15,366 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 08:07:14" (3/4) ... [2025-03-09 08:07:15,366 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 08:07:15,395 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 08:07:15,395 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 08:07:15,397 INFO L158 Benchmark]: Toolchain (without parser) took 1877.21ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 89.4MB in the end (delta: 18.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2025-03-09 08:07:15,397 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.08ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 98.9MB in the end (delta: 8.4MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.78ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 96.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: Boogie Preprocessor took 50.30ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 93.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: IcfgBuilder took 381.01ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 74.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: BuchiAutomizer took 799.90ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 93.1MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 08:07:15,398 INFO L158 Benchmark]: Witness Printer took 31.65ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 89.4MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 08:07:15,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.08ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 98.9MB in the end (delta: 8.4MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.78ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 96.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.30ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 93.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 381.01ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 74.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 799.90ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 93.1MB in the end (delta: -18.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.65ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 89.4MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. 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: 4974]: 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: 4974]: 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! [2025-03-09 08:07:15,415 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)