./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:48:58,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:48:58,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:48:58,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:48:58,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:48:58,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:48:58,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:48:58,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:48:58,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:48:58,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:48:58,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:48:58,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:48:58,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:48:58,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:48:58,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:48:58,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:48:58,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:48:58,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:48:58,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:48:58,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:48:58,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:48:58,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:48:58,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:48:58,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:48:58,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:48:58,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:48:58,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:48:58,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:48:58,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:48:58,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:48:58,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:48:58,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:48:58,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:48:58,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:48:58,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:48:58,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:48:58,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:48:58,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:48:58,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:48:58,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:48:58,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:48:58,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Default.epf [2021-11-23 15:48:58,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:48:58,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:48:58,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:48:58,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:48:58,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:48:58,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:48:58,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:48:58,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:48:58,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:48:58,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:48:58,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:48:58,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:48:58,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:48:58,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:48:58,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:48:58,451 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:48:58,451 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:48:58,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:48:58,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:48:58,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:48:58,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:48:58,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:48:58,453 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:48:58,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:48:58,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:48:58,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2021-11-23 15:48:58,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:48:58,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:48:58,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:48:58,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:48:58,719 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:48:58,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-23 15:48:58,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/2bdf3768e/cf37cb6bb0e54d2586fcb468b9bd3094/FLAG56de82fd6 [2021-11-23 15:48:59,697 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:48:59,698 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-23 15:48:59,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/2bdf3768e/cf37cb6bb0e54d2586fcb468b9bd3094/FLAG56de82fd6 [2021-11-23 15:49:00,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/2bdf3768e/cf37cb6bb0e54d2586fcb468b9bd3094 [2021-11-23 15:49:00,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:00,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:00,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:00,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:00,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:00,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:00" (1/1) ... [2021-11-23 15:49:00,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560c8d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:00, skipping insertion in model container [2021-11-23 15:49:00,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:00" (1/1) ... [2021-11-23 15:49:00,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:00,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:02,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-23 15:49:02,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:02,980 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:03,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-23 15:49:03,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:03,629 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:03,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03 WrapperNode [2021-11-23 15:49:03,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:03,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:03,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:03,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:03,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:03,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,006 INFO L137 Inliner]: procedures = 336, calls = 2288, calls flagged for inlining = 154, calls inlined = 152, statements flattened = 5807 [2021-11-23 15:49:04,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:04,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:04,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:04,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:04,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:04,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:04,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:04,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:04,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:03" (1/1) ... [2021-11-23 15:49:04,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:04,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:04,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:04,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-23 15:49:04,487 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-23 15:49:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-23 15:49:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-23 15:49:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 15:49:04,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 15:49:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-11-23 15:49:04,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-11-23 15:49:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 15:49:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-11-23 15:49:04,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-11-23 15:49:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 15:49:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 15:49:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 15:49:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 15:49:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 15:49:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 15:49:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:49:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:49:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 15:49:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 15:49:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-23 15:49:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-23 15:49:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-23 15:49:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-23 15:49:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-23 15:49:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-23 15:49:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-23 15:49:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-23 15:49:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-23 15:49:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-23 15:49:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 15:49:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 15:49:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 15:49:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 15:49:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 15:49:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 15:49:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 15:49:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 15:49:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 15:49:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 15:49:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-23 15:49:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-23 15:49:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2021-11-23 15:49:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2021-11-23 15:49:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-23 15:49:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-23 15:49:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-23 15:49:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-23 15:49:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 15:49:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 15:49:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 15:49:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 15:49:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-23 15:49:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-23 15:49:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 15:49:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 15:49:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 15:49:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 15:49:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-23 15:49:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-23 15:49:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:49:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:49:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 15:49:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 15:49:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 15:49:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 15:49:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-23 15:49:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-23 15:49:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-23 15:49:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-23 15:49:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 15:49:04,503 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 15:49:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-23 15:49:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-23 15:49:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:49:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 15:49:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 15:49:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 15:49:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 15:49:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-11-23 15:49:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-11-23 15:49:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2021-11-23 15:49:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2021-11-23 15:49:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2021-11-23 15:49:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2021-11-23 15:49:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 15:49:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 15:49:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 15:49:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 15:49:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-23 15:49:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-23 15:49:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 15:49:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 15:49:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 15:49:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 15:49:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:49:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-11-23 15:49:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-11-23 15:49:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-23 15:49:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-23 15:49:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 15:49:04,510 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 15:49:04,510 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-23 15:49:04,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-23 15:49:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 15:49:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 15:49:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 15:49:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 15:49:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 15:49:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 15:49:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-23 15:49:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-23 15:49:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 15:49:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 15:49:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 15:49:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 15:49:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 15:49:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 15:49:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-23 15:49:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-23 15:49:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-23 15:49:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-23 15:49:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 15:49:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 15:49:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 15:49:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 15:49:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 15:49:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-23 15:49:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-23 15:49:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 15:49:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 15:49:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-23 15:49:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-23 15:49:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2021-11-23 15:49:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2021-11-23 15:49:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 15:49:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-23 15:49:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-23 15:49:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 15:49:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 15:49:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:49:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 15:49:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 15:49:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-23 15:49:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-23 15:49:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-23 15:49:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-23 15:49:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-23 15:49:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-23 15:49:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-23 15:49:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-23 15:49:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 15:49:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 15:49:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-11-23 15:49:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-11-23 15:49:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-11-23 15:49:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-11-23 15:49:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-23 15:49:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-23 15:49:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-23 15:49:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-23 15:49:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-23 15:49:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-23 15:49:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 15:49:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 15:49:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-23 15:49:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-23 15:49:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-23 15:49:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-23 15:49:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2021-11-23 15:49:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2021-11-23 15:49:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 15:49:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 15:49:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-23 15:49:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-23 15:49:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-11-23 15:49:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-11-23 15:49:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-23 15:49:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-23 15:49:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:49:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 15:49:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 15:49:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-23 15:49:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-23 15:49:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 15:49:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 15:49:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2021-11-23 15:49:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2021-11-23 15:49:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 15:49:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 15:49:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 15:49:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 15:49:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-23 15:49:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-23 15:49:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 15:49:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 15:49:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-23 15:49:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-23 15:49:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-23 15:49:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-23 15:49:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 15:49:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 15:49:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 15:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 15:49:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 15:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 15:49:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:04,538 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 15:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 15:49:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 15:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 15:49:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 15:49:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 15:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-11-23 15:49:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 15:49:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 15:49:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 15:49:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 15:49:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-11-23 15:49:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-11-23 15:49:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 15:49:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 15:49:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 15:49:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 15:49:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 15:49:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 15:49:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-23 15:49:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-23 15:49:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 15:49:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 15:49:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 15:49:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 15:49:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 15:49:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 15:49:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-11-23 15:49:04,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-11-23 15:49:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 15:49:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 15:49:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-23 15:49:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-23 15:49:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-23 15:49:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-23 15:49:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 15:49:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 15:49:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-11-23 15:49:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-11-23 15:49:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-23 15:49:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-23 15:49:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-23 15:49:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-23 15:49:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:49:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-23 15:49:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-23 15:49:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 15:49:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 15:49:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 15:49:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 15:49:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 15:49:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 15:49:05,548 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:05,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:06,180 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:06,184 INFO L158 Benchmark]: Toolchain (without parser) took 5997.38ms. Allocated memory was 98.6MB in the beginning and 203.4MB in the end (delta: 104.9MB). Free memory was 71.0MB in the beginning and 78.1MB in the end (delta: -7.1MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2021-11-23 15:49:06,185 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:06,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3444.18ms. Allocated memory was 98.6MB in the beginning and 203.4MB in the end (delta: 104.9MB). Free memory was 71.0MB in the beginning and 94.8MB in the end (delta: -23.8MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-23 15:49:06,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 376.01ms. Allocated memory is still 203.4MB. Free memory was 94.7MB in the beginning and 108.5MB in the end (delta: -13.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-23 15:49:06,187 INFO L158 Benchmark]: Boogie Preprocessor took 397.75ms. Allocated memory is still 203.4MB. Free memory was 108.5MB in the beginning and 104.9MB in the end (delta: 3.6MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2021-11-23 15:49:06,188 INFO L158 Benchmark]: RCFGBuilder took 1775.11ms. Allocated memory is still 203.4MB. Free memory was 104.9MB in the beginning and 78.1MB in the end (delta: 26.8MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-11-23 15:49:06,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3444.18ms. Allocated memory was 98.6MB in the beginning and 203.4MB in the end (delta: 104.9MB). Free memory was 71.0MB in the beginning and 94.8MB in the end (delta: -23.8MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 376.01ms. Allocated memory is still 203.4MB. Free memory was 94.7MB in the beginning and 108.5MB in the end (delta: -13.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 397.75ms. Allocated memory is still 203.4MB. Free memory was 108.5MB in the beginning and 104.9MB in the end (delta: 3.6MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1775.11ms. Allocated memory is still 203.4MB. Free memory was 104.9MB in the beginning and 78.1MB in the end (delta: 26.8MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:49:06,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:49:08,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:49:08,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:49:08,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:49:08,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:49:08,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:49:08,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:49:08,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:49:08,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:49:08,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:49:08,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:49:08,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:49:08,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:49:08,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:49:08,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:49:08,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:49:08,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:49:08,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:49:08,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:49:08,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:49:08,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:49:08,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:49:08,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:49:08,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:49:08,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:49:08,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:49:08,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:49:08,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:49:08,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:49:08,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:49:08,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:49:08,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:49:08,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:49:08,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:49:08,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:49:08,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:49:08,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:49:08,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:49:08,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:49:08,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:49:08,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:49:08,678 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2021-11-23 15:49:08,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:49:08,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:49:08,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:49:08,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:49:08,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:49:08,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:49:08,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:49:08,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:49:08,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:49:08,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:49:08,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:49:08,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:49:08,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:49:08,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:49:08,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:49:08,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:49:08,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:49:08,731 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:49:08,731 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:49:08,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:49:08,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:08,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:49:08,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:49:08,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:49:08,733 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:49:08,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:49:08,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:49:08,733 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:49:08,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:49:08,734 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2021-11-23 15:49:09,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:49:09,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:49:09,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:49:09,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:49:09,172 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:49:09,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-23 15:49:09,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/ff9c25f68/1d7f89555d1a429983ceaee055f92bd1/FLAGd982cfb15 [2021-11-23 15:49:10,294 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:49:10,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-11-23 15:49:10,332 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/ff9c25f68/1d7f89555d1a429983ceaee055f92bd1/FLAGd982cfb15 [2021-11-23 15:49:10,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/data/ff9c25f68/1d7f89555d1a429983ceaee055f92bd1 [2021-11-23 15:49:10,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:10,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:10,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:10,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:10,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:10,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:10" (1/1) ... [2021-11-23 15:49:10,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3999224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:10, skipping insertion in model container [2021-11-23 15:49:10,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:10" (1/1) ... [2021-11-23 15:49:10,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:10,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:13,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-23 15:49:13,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:13,405 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 15:49:13,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:13,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-23 15:49:13,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:13,957 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:14,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2021-11-23 15:49:14,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:14,609 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:14,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14 WrapperNode [2021-11-23 15:49:14,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:14,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:14,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:14,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:14,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:14,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:14,952 INFO L137 Inliner]: procedures = 352, calls = 2287, calls flagged for inlining = 156, calls inlined = 154, statements flattened = 5685 [2021-11-23 15:49:14,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:14,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:14,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:14,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:14,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:14,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:14,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:14,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:15,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:15,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:15,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:15,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:15,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:15,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:15,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:14" (1/1) ... [2021-11-23 15:49:15,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:15,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:15,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:15,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-11-23 15:49:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-11-23 15:49:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 15:49:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 15:49:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 15:49:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 15:49:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-11-23 15:49:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-11-23 15:49:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 15:49:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-11-23 15:49:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-11-23 15:49:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:49:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 15:49:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-23 15:49:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-23 15:49:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-23 15:49:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 15:49:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 15:49:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 15:49:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:49:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:49:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 15:49:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 15:49:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-23 15:49:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-23 15:49:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-11-23 15:49:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-11-23 15:49:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-23 15:49:15,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-23 15:49:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-11-23 15:49:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-11-23 15:49:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-11-23 15:49:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-11-23 15:49:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 15:49:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 15:49:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 15:49:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 15:49:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 15:49:15,521 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 15:49:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-23 15:49:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-23 15:49:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 15:49:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 15:49:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-11-23 15:49:15,522 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-11-23 15:49:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2021-11-23 15:49:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2021-11-23 15:49:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2021-11-23 15:49:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~$Pointer$ [2021-11-23 15:49:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-11-23 15:49:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-11-23 15:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-11-23 15:49:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-11-23 15:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 15:49:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 15:49:15,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 15:49:15,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 15:49:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-11-23 15:49:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-11-23 15:49:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 15:49:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 15:49:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 15:49:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 15:49:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-11-23 15:49:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-11-23 15:49:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:49:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:49:15,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 15:49:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 15:49:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 15:49:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 15:49:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-23 15:49:15,527 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-23 15:49:15,527 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-11-23 15:49:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-11-23 15:49:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 15:49:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 15:49:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-11-23 15:49:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-11-23 15:49:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:49:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 15:49:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 15:49:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 15:49:15,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 15:49:15,529 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-11-23 15:49:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-11-23 15:49:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2021-11-23 15:49:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2021-11-23 15:49:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:15,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2021-11-23 15:49:15,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2021-11-23 15:49:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 15:49:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 15:49:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 15:49:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 15:49:15,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-11-23 15:49:15,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-11-23 15:49:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-23 15:49:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-23 15:49:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 15:49:15,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 15:49:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 15:49:15,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 15:49:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 15:49:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:49:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:49:15,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-11-23 15:49:15,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-11-23 15:49:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-11-23 15:49:15,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-11-23 15:49:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:49:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:49:15,534 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 15:49:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 15:49:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-23 15:49:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-23 15:49:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-23 15:49:15,535 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 15:49:15,535 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 15:49:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 15:49:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 15:49:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 15:49:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 15:49:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-11-23 15:49:15,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-11-23 15:49:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 15:49:15,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 15:49:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 15:49:15,537 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 15:49:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 15:49:15,538 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 15:49:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-11-23 15:49:15,538 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-11-23 15:49:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-11-23 15:49:15,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-11-23 15:49:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 15:49:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 15:49:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 15:49:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 15:49:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_UINT [2021-11-23 15:49:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_UINT [2021-11-23 15:49:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-11-23 15:49:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-11-23 15:49:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 15:49:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 15:49:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-11-23 15:49:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-11-23 15:49:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2021-11-23 15:49:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2021-11-23 15:49:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-11-23 15:49:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-11-23 15:49:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 15:49:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 15:49:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 15:49:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 15:49:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-23 15:49:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-23 15:49:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-11-23 15:49:15,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-11-23 15:49:15,542 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-11-23 15:49:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-11-23 15:49:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-11-23 15:49:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-11-23 15:49:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 15:49:15,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 15:49:15,543 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-11-23 15:49:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-11-23 15:49:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-11-23 15:49:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-11-23 15:49:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-11-23 15:49:15,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-11-23 15:49:15,544 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-11-23 15:49:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-11-23 15:49:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-23 15:49:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-23 15:49:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 15:49:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 15:49:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-11-23 15:49:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-11-23 15:49:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-11-23 15:49:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-11-23 15:49:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2021-11-23 15:49:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2021-11-23 15:49:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 15:49:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 15:49:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-11-23 15:49:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-11-23 15:49:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-11-23 15:49:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-11-23 15:49:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-23 15:49:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-23 15:49:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 15:49:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 15:49:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-23 15:49:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-23 15:49:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-23 15:49:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 15:49:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 15:49:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-23 15:49:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-23 15:49:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-23 15:49:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2021-11-23 15:49:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2021-11-23 15:49:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 15:49:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 15:49:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 15:49:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-23 15:49:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 15:49:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 15:49:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-23 15:49:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-23 15:49:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-23 15:49:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-23 15:49:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-11-23 15:49:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-11-23 15:49:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-11-23 15:49:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-11-23 15:49:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-23 15:49:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-23 15:49:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 15:49:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 15:49:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-23 15:49:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-23 15:49:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 15:49:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 15:49:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 15:49:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 15:49:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 15:49:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-23 15:49:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-23 15:49:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 15:49:15,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 15:49:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-23 15:49:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 15:49:15,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 15:49:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-11-23 15:49:15,556 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-11-23 15:49:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-23 15:49:15,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-23 15:49:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 15:49:15,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 15:49:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 15:49:15,557 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 15:49:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-11-23 15:49:15,557 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-11-23 15:49:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 15:49:15,557 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 15:49:15,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 15:49:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 15:49:15,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 15:49:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 15:49:15,558 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-11-23 15:49:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-11-23 15:49:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 15:49:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 15:49:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-11-23 15:49:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-11-23 15:49:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-11-23 15:49:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-11-23 15:49:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-11-23 15:49:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-11-23 15:49:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-11-23 15:49:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-11-23 15:49:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-23 15:49:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-11-23 15:49:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-11-23 15:49:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 15:49:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 15:49:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 15:49:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 15:49:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 15:49:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 15:49:16,617 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:16,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:37,278 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:37,282 INFO L158 Benchmark]: Toolchain (without parser) took 26677.86ms. Allocated memory was 86.0MB in the beginning and 268.4MB in the end (delta: 182.5MB). Free memory was 58.9MB in the beginning and 134.8MB in the end (delta: -75.9MB). Peak memory consumption was 149.3MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,283 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 86.0MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:37,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4004.84ms. Allocated memory was 86.0MB in the beginning and 180.4MB in the end (delta: 94.4MB). Free memory was 58.9MB in the beginning and 92.1MB in the end (delta: -33.1MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 342.66ms. Allocated memory is still 180.4MB. Free memory was 92.1MB in the beginning and 61.5MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,284 INFO L158 Benchmark]: Boogie Preprocessor took 441.04ms. Allocated memory was 180.4MB in the beginning and 268.4MB in the end (delta: 88.1MB). Free memory was 61.5MB in the beginning and 148.2MB in the end (delta: -86.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,285 INFO L158 Benchmark]: RCFGBuilder took 21884.97ms. Allocated memory is still 268.4MB. Free memory was 148.2MB in the beginning and 134.8MB in the end (delta: 13.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 86.0MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4004.84ms. Allocated memory was 86.0MB in the beginning and 180.4MB in the end (delta: 94.4MB). Free memory was 58.9MB in the beginning and 92.1MB in the end (delta: -33.1MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 342.66ms. Allocated memory is still 180.4MB. Free memory was 92.1MB in the beginning and 61.5MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 441.04ms. Allocated memory was 180.4MB in the beginning and 268.4MB in the end (delta: 88.1MB). Free memory was 61.5MB in the beginning and 148.2MB in the end (delta: -86.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * RCFGBuilder took 21884.97ms. Allocated memory is still 268.4MB. Free memory was 148.2MB in the beginning and 134.8MB in the end (delta: 13.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:49:37,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8a708e4-95cb-4841-b418-76924e16c8aa/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable