./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu --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 0.2.3-dev-9bd2c7f [2023-11-19 07:35:43,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:43,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:35:43,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:43,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:43,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:43,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:43,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:43,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:43,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:43,645 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:43,645 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:35:43,646 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:35:43,648 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:35:43,648 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:35:43,649 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:35:43,649 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:35:43,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:43,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:35:43,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:43,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:43,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:35:43,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:35:43,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:35:43,655 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:35:43,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:43,656 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:35:43,656 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:43,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:43,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:43,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:43,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:43,660 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:35:43,661 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66690b8f2afac00b38604fc5fd1edb6c2524e6892200d6512ef98cf0032d8df1 [2023-11-19 07:35:43,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:44,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:44,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:44,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:44,028 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:44,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:35:47,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:47,822 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:47,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:35:47,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/data/035f5579d/1a7b6b472e114e6baf9ae41afce54919/FLAG420526647 [2023-11-19 07:35:47,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/data/035f5579d/1a7b6b472e114e6baf9ae41afce54919 [2023-11-19 07:35:47,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:47,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:47,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:47,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:47,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:47,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:47" (1/1) ... [2023-11-19 07:35:47,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59648778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:47, skipping insertion in model container [2023-11-19 07:35:47,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:47" (1/1) ... [2023-11-19 07:35:48,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:48,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:48,771 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:48,991 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] [2023-11-19 07:35:48,993 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] [2023-11-19 07:35:48,994 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] [2023-11-19 07:35:48,994 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] [2023-11-19 07:35:48,995 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] [2023-11-19 07:35:49,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:49,044 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:49,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49 WrapperNode [2023-11-19 07:35:49,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:49,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:49,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:49,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:49,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,125 INFO L138 Inliner]: procedures = 49, calls = 67, calls flagged for inlining = 29, calls inlined = 20, statements flattened = 185 [2023-11-19 07:35:49,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:49,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:49,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:49,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:49,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:49,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:49,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:49,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:49,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (1/1) ... [2023-11-19 07:35:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:35:49,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:49,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:49,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:35:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:35:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:49,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:49,457 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:49,460 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:49,468 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:35:49,701 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2023-11-19 07:35:49,701 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2023-11-19 07:35:49,701 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:49,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:49,714 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:35:49,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:49 BoogieIcfgContainer [2023-11-19 07:35:49,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:49,722 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:35:49,722 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:35:49,727 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:35:49,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:35:49,728 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:35:47" (1/3) ... [2023-11-19 07:35:49,729 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45e25e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:35:49, skipping insertion in model container [2023-11-19 07:35:49,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:35:49,730 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:49" (2/3) ... [2023-11-19 07:35:49,732 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45e25e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:35:49, skipping insertion in model container [2023-11-19 07:35:49,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:35:49,733 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:49" (3/3) ... [2023-11-19 07:35:49,734 INFO L332 chiAutomizerObserver]: Analyzing ICFG module_get_put-drivers-net-pppox.ko.cil.out.i [2023-11-19 07:35:49,791 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:35:49,791 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:35:49,791 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:35:49,791 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:35:49,791 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:35:49,791 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:35:49,792 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:35:49,792 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:35:49,797 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) [2023-11-19 07:35:49,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-11-19 07:35:49,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:49,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:49,825 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:49,825 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:35:49,825 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:35:49,826 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) [2023-11-19 07:35:49,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 29 [2023-11-19 07:35:49,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:35:49,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:35:49,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:35:49,831 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-19 07:35:49,838 INFO L748 eck$LassoCheckResult]: Stem: 43#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(46, 2);call #Ultimate.allocInit(15, 3);call #Ultimate.allocInit(32, 4);~#pppox_protos~0.base, ~#pppox_protos~0.offset := 4, 0;call write~init~$Pointer$(0, 0, ~#pppox_protos~0.base, ~#pppox_protos~0.offset, 8);call write~init~$Pointer$(0, 0, ~#pppox_protos~0.base, 8 + ~#pppox_protos~0.offset, 8);call write~init~$Pointer$(0, 0, ~#pppox_protos~0.base, 16 + ~#pppox_protos~0.offset, 8);call write~init~$Pointer$(0, 0, ~#pppox_protos~0.base, 24 + ~#pppox_protos~0.offset, 8);call #Ultimate.allocInit(20, 5);~#pppox_proto_family~0.base, ~#pppox_proto_family~0.offset := 5, 0;call write~init~int(24, ~#pppox_proto_family~0.base, ~#pppox_proto_family~0.offset, 4);call write~init~$Pointer$(#funAddr~pppox_create.base, #funAddr~pppox_create.offset, ~#pppox_proto_family~0.base, 4 + ~#pppox_proto_family~0.offset, 8);call write~init~$Pointer$(~#__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~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; 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~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; 44#sock_register_returnLabel#1true 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; 36#pppox_init_returnLabel#1true 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; 38#L4947true assume !(0 != main_~tmp~4#1); 47#L4971true [2023-11-19 07:35:49,839 INFO L750 eck$LassoCheckResult]: Loop: 47#L4971true havoc main_#t~nondet52#1;main_~tmp___1~0#1 := main_#t~nondet52#1;havoc main_#t~nondet52#1; 25#L4976true assume 0 != main_~tmp___1~0#1; 21#main_ldv_38480#1true havoc main_#t~nondet50#1;main_~tmp___0~1#1 := main_#t~nondet50#1;havoc main_#t~nondet50#1; 20#L4956true assume !(0 == main_~tmp___0~1#1); 47#L4971true [2023-11-19 07:35:49,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 889475914, now seen corresponding path program 1 times [2023-11-19 07:35:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116047027] [2023-11-19 07:35:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:49,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:50,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash 4217353, now seen corresponding path program 1 times [2023-11-19 07:35:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:50,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959863884] [2023-11-19 07:35:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:50,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1461198638, now seen corresponding path program 1 times [2023-11-19 07:35:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:50,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152427153] [2023-11-19 07:35:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:50,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:51,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:51,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:35:51 BoogieIcfgContainer [2023-11-19 07:35:51,256 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:35:51,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:51,257 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:51,257 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:51,258 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:49" (3/4) ... [2023-11-19 07:35:51,259 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 07:35:51,326 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:35:51,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:51,329 INFO L158 Benchmark]: Toolchain (without parser) took 3447.37ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 116.2MB in the beginning and 129.0MB in the end (delta: -12.9MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,330 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 62.4MB in the end (delta: 186.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:51,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1162.36ms. Allocated memory is still 155.2MB. Free memory was 116.2MB in the beginning and 92.6MB in the end (delta: 23.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.38ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 89.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,343 INFO L158 Benchmark]: Boogie Preprocessor took 62.09ms. Allocated memory is still 155.2MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,345 INFO L158 Benchmark]: RCFGBuilder took 531.14ms. Allocated memory is still 155.2MB. Free memory was 87.6MB in the beginning and 70.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,346 INFO L158 Benchmark]: BuchiAutomizer took 1533.86ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 70.1MB in the beginning and 131.1MB in the end (delta: -61.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,350 INFO L158 Benchmark]: Witness Printer took 69.93ms. Allocated memory is still 222.3MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:51,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 62.4MB in the end (delta: 186.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1162.36ms. Allocated memory is still 155.2MB. Free memory was 116.2MB in the beginning and 92.6MB in the end (delta: 23.6MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.38ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 89.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.09ms. Allocated memory is still 155.2MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.14ms. Allocated memory is still 155.2MB. Free memory was 87.6MB in the beginning and 70.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1533.86ms. Allocated memory was 155.2MB in the beginning and 222.3MB in the end (delta: 67.1MB). Free memory was 70.1MB in the beginning and 131.1MB in the end (delta: -61.0MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 69.93ms. Allocated memory is still 222.3MB. Free memory was 131.1MB in the beginning and 129.0MB 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 1.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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] ; [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={9:10}, 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={9:10}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}, tmp=0] [L4945] RET, EXPR pppox_init() [L4945] tmp = pppox_init() [L4947] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, __this_module={9:10}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}, tmp=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] ; [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={9:10}, 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={9:10}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}, tmp=0] [L4945] RET, EXPR pppox_init() [L4945] tmp = pppox_init() [L4947] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, __this_module={9:10}, ldv_module_refcounter=1, pppox_proto_family={5:0}, pppox_protos={4:0}, tmp=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! [2023-11-19 07:35:51,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_147c8805-b39a-40aa-92c8-38f13fa5e705/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)