java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:00:24,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:00:24,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:00:24,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:00:24,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:00:24,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:00:24,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:00:24,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:00:24,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:00:24,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:00:24,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:00:24,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:00:24,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:00:24,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:00:24,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:00:24,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:00:24,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:00:24,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:00:24,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:00:24,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:00:24,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:00:24,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:00:24,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:00:24,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:00:24,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:00:24,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:00:24,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:00:24,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:00:24,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:00:24,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:00:24,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:00:24,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:00:24,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:00:24,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:00:24,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:00:24,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:00:24,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:00:24,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:00:24,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:00:24,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:00:24,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:00:24,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:00:24,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:00:24,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:00:24,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:00:24,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:00:24,497 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:00:24,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:00:24,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:00:24,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:00:24,499 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:00:24,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:00:24,499 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:00:24,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:00:24,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:00:24,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:00:24,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:00:24,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:00:24,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:00:24,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:00:24,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:00:24,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:00:24,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:00:24,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:00:24,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:00:24,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:00:24,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:00:24,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:00:24,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:00:24,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:00:24,800 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:00:24,801 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-13 21:00:24,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fa8cf6d/55ba62887e284f75b01b198b213eab29/FLAGe9131c469 [2019-10-13 21:00:25,855 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:00:25,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-13 21:00:25,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fa8cf6d/55ba62887e284f75b01b198b213eab29/FLAGe9131c469 [2019-10-13 21:00:26,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fa8cf6d/55ba62887e284f75b01b198b213eab29 [2019-10-13 21:00:26,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:00:26,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:00:26,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:00:26,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:00:26,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:00:26,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:00:26" (1/1) ... [2019-10-13 21:00:26,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8ad14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:26, skipping insertion in model container [2019-10-13 21:00:26,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:00:26" (1/1) ... [2019-10-13 21:00:26,200 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:00:26,417 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:00:29,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:00:29,659 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:00:30,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:00:30,837 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:00:30,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30 WrapperNode [2019-10-13 21:00:30,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:00:30,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:00:30,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:00:30,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:00:30,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:30,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:30,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:30,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:31,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:31,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:31,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... [2019-10-13 21:00:31,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:00:31,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:00:31,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:00:31,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:00:31,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:00:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:00:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 21:00:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2019-10-13 21:00:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-13 21:00:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2019-10-13 21:00:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 21:00:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2019-10-13 21:00:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2019-10-13 21:00:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-13 21:00:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 21:00:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 21:00:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 21:00:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-13 21:00:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-13 21:00:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 21:00:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 21:00:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 21:00:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 21:00:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-13 21:00:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-13 21:00:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 21:00:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-13 21:00:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-13 21:00:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-10-13 21:00:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2019-10-13 21:00:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_6 [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2019-10-13 21:00:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_10 [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2019-10-13 21:00:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 21:00:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 21:00:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-13 21:00:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-13 21:00:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_last [2019-10-13 21:00:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_next [2019-10-13 21:00:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unclone [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-13 21:00:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-13 21:00:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2019-10-13 21:00:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_before [2019-10-13 21:00:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2019-10-13 21:00:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-13 21:00:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_pull [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-13 21:00:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 21:00:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2019-10-13 21:00:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-13 21:00:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2019-10-13 21:00:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_complete_unset [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure write_pnet [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net_set [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 21:00:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_keep_dst [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2019-10-13 21:00:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ethertype_to_npindex [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2019-10-13 21:00:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_read [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unattached_ioctl [2019-10-13 21:00:31,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2019-10-13 21:00:31,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2019-10-13 21:00:31,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init [2019-10-13 21:00:31,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_start_xmit [2019-10-13 21:00:31,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2019-10-13 21:00:31,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2019-10-13 21:00:31,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2019-10-13 21:00:31,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2019-10-13 21:00:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2019-10-13 21:00:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_compress_skb [2019-10-13 21:00:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2019-10-13 21:00:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2019-10-13 21:00:31,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2019-10-13 21:00:31,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2019-10-13 21:00:31,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2019-10-13 21:00:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2019-10-13 21:00:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2019-10-13 21:00:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_frame [2019-10-13 21:00:31,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2019-10-13 21:00:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2019-10-13 21:00:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_decompress_frame [2019-10-13 21:00:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_mp_frame [2019-10-13 21:00:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_insert [2019-10-13 21:00:31,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_reconstruct [2019-10-13 21:00:31,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2019-10-13 21:00:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2019-10-13 21:00:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-13 21:00:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2019-10-13 21:00:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_name [2019-10-13 21:00:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-13 21:00:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2019-10-13 21:00:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_set_compress [2019-10-13 21:00:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2019-10-13 21:00:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2019-10-13 21:00:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2019-10-13 21:00:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_compressor [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_compressor [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_create_interface [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2019-10-13 21:00:31,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_channel [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_connect_channel [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_cleanup [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_set [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_get [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2019-10-13 21:00:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pernet_operations_2 [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_1 [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-13 21:00:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_20 [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2019-10-13 21:00:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_37 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_38 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2019-10-13 21:00:31,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_40 [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_41 [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_42 [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_43 [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 21:00:31,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-13 21:00:31,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 21:00:31,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __rwlock_init [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 21:00:31,480 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-13 21:00:31,481 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 21:00:31,482 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-13 21:00:31,483 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_iter_init [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 21:00:31,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_open_1 [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_stop_1 [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_1 [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2019-10-13 21:00:31,485 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-13 21:00:31,486 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2019-10-13 21:00:31,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 21:00:31,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 21:00:31,490 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2019-10-13 21:00:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-10-13 21:00:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2019-10-13 21:00:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-13 21:00:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-13 21:00:31,491 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-13 21:00:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pernet_device [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2019-10-13 21:00:31,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iter [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull_rcsum [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-13 21:00:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_toss [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-13 21:00:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2019-10-13 21:00:31,497 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 21:00:31,497 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 21:00:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 21:00:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 21:00:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:00:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 21:00:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 21:00:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 21:00:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-13 21:00:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 21:00:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-13 21:00:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2019-10-13 21:00:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure __rwlock_init [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-13 21:00:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 21:00:31,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_6 [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_10 [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 21:00:31,509 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-13 21:00:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-13 21:00:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 21:00:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 21:00:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2019-10-13 21:00:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:00:31,512 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:00:31,513 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2019-10-13 21:00:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2019-10-13 21:00:31,514 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 21:00:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-13 21:00:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 21:00:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 21:00:31,515 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_20 [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_37 [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pernet_operations_2 [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_1 [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 21:00:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure iov_iter_init [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_38 [2019-10-13 21:00:31,517 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 21:00:31,518 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2019-10-13 21:00:31,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_last [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_next [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unclone [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2019-10-13 21:00:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_before [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2019-10-13 21:00:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_pull [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2019-10-13 21:00:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2019-10-13 21:00:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull_rcsum [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iter [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2019-10-13 21:00:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_complete_unset [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure write_pnet [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure register_pernet_device [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net_set [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_41 [2019-10-13 21:00:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_43 [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-13 21:00:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_40 [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_42 [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_keep_dst [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2019-10-13 21:00:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2019-10-13 21:00:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_name [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_compressor [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_compressor [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-13 21:00:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_toss [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unattached_ioctl [2019-10-13 21:00:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_frame [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_decompress_frame [2019-10-13 21:00:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_mp_frame [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_insert [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_reconstruct [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_set_compress [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats [2019-10-13 21:00:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_create_interface [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_channel [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_connect_channel [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2019-10-13 21:00:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure unit_get [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure unit_set [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure ethertype_to_npindex [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2019-10-13 21:00:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_read [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2019-10-13 21:00:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_start_xmit [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure pad_compress_skb [2019-10-13 21:00:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2019-10-13 21:00:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_cleanup [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_open_1 [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_1 [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_stop_1 [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:00:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 21:00:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 21:00:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 21:00:32,790 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 21:00:49,890 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:00:49,891 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:00:49,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:00:49 BoogieIcfgContainer [2019-10-13 21:00:49,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:00:49,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:00:49,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:00:49,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:00:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:00:26" (1/3) ... [2019-10-13 21:00:49,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8c2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:00:49, skipping insertion in model container [2019-10-13 21:00:49,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:00:30" (2/3) ... [2019-10-13 21:00:49,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8c2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:00:49, skipping insertion in model container [2019-10-13 21:00:49,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:00:49" (3/3) ... [2019-10-13 21:00:49,905 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-13 21:00:49,916 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:00:49,932 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:00:49,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:00:49,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:00:49,982 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:00:49,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:00:49,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:00:49,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:00:49,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:00:49,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:00:49,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:00:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states. [2019-10-13 21:00:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 21:00:50,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:00:50,070 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:00:50,073 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:00:50,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:00:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash 456171121, now seen corresponding path program 1 times [2019-10-13 21:00:50,090 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:00:50,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054618857] [2019-10-13 21:00:50,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:50,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:50,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:00:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:00:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-10-13 21:00:51,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054618857] [2019-10-13 21:00:51,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:00:51,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:00:51,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792012517] [2019-10-13 21:00:51,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:00:51,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:00:51,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:00:51,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:00:51,262 INFO L87 Difference]: Start difference. First operand 2718 states. Second operand 3 states. [2019-10-13 21:00:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:00:51,932 INFO L93 Difference]: Finished difference Result 7000 states and 9579 transitions. [2019-10-13 21:00:51,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:00:51,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-13 21:00:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:00:52,000 INFO L225 Difference]: With dead ends: 7000 [2019-10-13 21:00:52,000 INFO L226 Difference]: Without dead ends: 4346 [2019-10-13 21:00:52,024 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:00:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2019-10-13 21:00:52,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4331. [2019-10-13 21:00:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4331 states. [2019-10-13 21:00:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 5823 transitions. [2019-10-13 21:00:52,417 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 5823 transitions. Word has length 183 [2019-10-13 21:00:52,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:00:52,422 INFO L462 AbstractCegarLoop]: Abstraction has 4331 states and 5823 transitions. [2019-10-13 21:00:52,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:00:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 5823 transitions. [2019-10-13 21:00:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-13 21:00:52,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:00:52,437 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:00:52,437 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:00:52,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:00:52,438 INFO L82 PathProgramCache]: Analyzing trace with hash 405950389, now seen corresponding path program 1 times [2019-10-13 21:00:52,438 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:00:52,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442938800] [2019-10-13 21:00:52,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:52,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:52,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:00:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:00:53,048 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2019-10-13 21:00:53,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442938800] [2019-10-13 21:00:53,049 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:00:53,049 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:00:53,049 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991828767] [2019-10-13 21:00:53,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:00:53,051 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:00:53,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:00:53,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:00:53,052 INFO L87 Difference]: Start difference. First operand 4331 states and 5823 transitions. Second operand 3 states. [2019-10-13 21:00:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:00:53,844 INFO L93 Difference]: Finished difference Result 12533 states and 16932 transitions. [2019-10-13 21:00:53,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:00:53,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2019-10-13 21:00:53,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:00:53,948 INFO L225 Difference]: With dead ends: 12533 [2019-10-13 21:00:53,948 INFO L226 Difference]: Without dead ends: 8246 [2019-10-13 21:00:53,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:00:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2019-10-13 21:00:54,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 8175. [2019-10-13 21:00:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8175 states. [2019-10-13 21:00:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8175 states to 8175 states and 11083 transitions. [2019-10-13 21:00:54,371 INFO L78 Accepts]: Start accepts. Automaton has 8175 states and 11083 transitions. Word has length 218 [2019-10-13 21:00:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:00:54,373 INFO L462 AbstractCegarLoop]: Abstraction has 8175 states and 11083 transitions. [2019-10-13 21:00:54,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:00:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 8175 states and 11083 transitions. [2019-10-13 21:00:54,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 21:00:54,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:00:54,378 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:00:54,379 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:00:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:00:54,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1108025780, now seen corresponding path program 1 times [2019-10-13 21:00:54,379 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:00:54,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103069403] [2019-10-13 21:00:54,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:54,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:54,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:00:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:00:54,870 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2019-10-13 21:00:54,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103069403] [2019-10-13 21:00:54,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:00:54,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:00:54,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453777066] [2019-10-13 21:00:54,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:00:54,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:00:54,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:00:54,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:00:54,873 INFO L87 Difference]: Start difference. First operand 8175 states and 11083 transitions. Second operand 6 states. [2019-10-13 21:00:58,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:00:58,335 INFO L93 Difference]: Finished difference Result 24413 states and 33105 transitions. [2019-10-13 21:00:58,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:00:58,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 249 [2019-10-13 21:00:58,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:00:58,470 INFO L225 Difference]: With dead ends: 24413 [2019-10-13 21:00:58,471 INFO L226 Difference]: Without dead ends: 16234 [2019-10-13 21:00:58,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:00:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16234 states. [2019-10-13 21:00:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16234 to 16195. [2019-10-13 21:00:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16195 states. [2019-10-13 21:00:59,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16195 states to 16195 states and 21971 transitions. [2019-10-13 21:00:59,469 INFO L78 Accepts]: Start accepts. Automaton has 16195 states and 21971 transitions. Word has length 249 [2019-10-13 21:00:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:00:59,471 INFO L462 AbstractCegarLoop]: Abstraction has 16195 states and 21971 transitions. [2019-10-13 21:00:59,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:00:59,471 INFO L276 IsEmpty]: Start isEmpty. Operand 16195 states and 21971 transitions. [2019-10-13 21:00:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-13 21:00:59,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:00:59,482 INFO L380 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:00:59,483 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:00:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:00:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1666513834, now seen corresponding path program 1 times [2019-10-13 21:00:59,483 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:00:59,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279369125] [2019-10-13 21:00:59,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:59,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:00:59,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY