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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 09:07:05,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 09:07:05,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 09:07:05,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 09:07:05,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 09:07:05,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 09:07:05,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 09:07:05,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 09:07:05,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 09:07:05,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 09:07:05,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 09:07:05,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 09:07:05,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 09:07:05,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 09:07:05,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 09:07:05,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 09:07:05,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 09:07:05,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 09:07:05,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 09:07:05,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 09:07:05,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 09:07:05,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 09:07:05,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 09:07:05,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 09:07:05,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 09:07:05,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 09:07:05,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 09:07:05,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 09:07:05,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 09:07:05,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 09:07:05,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 09:07:05,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 09:07:05,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 09:07:05,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 09:07:05,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 09:07:05,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 09:07:05,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 09:07:05,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 09:07:05,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 09:07:05,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 09:07:05,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 09:07:05,573 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 [2019-10-07 09:07:05,599 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 09:07:05,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 09:07:05,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 09:07:05,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 09:07:05,601 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 09:07:05,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 09:07:05,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 09:07:05,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 09:07:05,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 09:07:05,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 09:07:05,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 09:07:05,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 09:07:05,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 09:07:05,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 09:07:05,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 09:07:05,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 09:07:05,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 09:07:05,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 09:07:05,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 09:07:05,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 09:07:05,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 09:07:05,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 09:07:05,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 09:07:05,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 09:07:05,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 09:07:05,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 09:07:05,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 09:07:05,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 09:07:05,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 09:07:05,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 09:07:05,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 09:07:05,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 09:07:05,905 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 09:07:05,906 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 09:07:05,906 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-07 09:07:05,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7f1d2e94/78b693d232fd41f38d0291520e59d738/FLAGf5da53a24 [2019-10-07 09:07:06,813 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 09:07:06,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-07 09:07:06,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7f1d2e94/78b693d232fd41f38d0291520e59d738/FLAGf5da53a24 [2019-10-07 09:07:07,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7f1d2e94/78b693d232fd41f38d0291520e59d738 [2019-10-07 09:07:07,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 09:07:07,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 09:07:07,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 09:07:07,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 09:07:07,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 09:07:07,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:07:07" (1/1) ... [2019-10-07 09:07:07,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1a64f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:07, skipping insertion in model container [2019-10-07 09:07:07,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 09:07:07" (1/1) ... [2019-10-07 09:07:07,326 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 09:07:07,511 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 09:07:11,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:07:11,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 09:07:11,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 09:07:12,147 INFO L192 MainTranslator]: Completed translation [2019-10-07 09:07:12,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12 WrapperNode [2019-10-07 09:07:12,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 09:07:12,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 09:07:12,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 09:07:12,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 09:07:12,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (1/1) ... [2019-10-07 09:07:12,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 09:07:12,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 09:07:12,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 09:07:12,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 09:07:12,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (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 [2019-10-07 09:07:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 09:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 09:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 09:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-07 09:07:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 09:07:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2019-10-07 09:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 09:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2019-10-07 09:07:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-07 09:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2019-10-07 09:07:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 09:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2019-10-07 09:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2019-10-07 09:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 09:07:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 09:07:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-07 09:07:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-07 09:07:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-10-07 09:07:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-10-07 09:07:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-07 09:07:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-07 09:07:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-07 09:07:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-07 09:07:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2019-10-07 09:07:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 09:07:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_last [2019-10-07 09:07:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_next [2019-10-07 09:07:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2019-10-07 09:07:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unclone [2019-10-07 09:07:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2019-10-07 09:07:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2019-10-07 09:07:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_before [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2019-10-07 09:07:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2019-10-07 09:07:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_pull [2019-10-07 09:07:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2019-10-07 09:07:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2019-10-07 09:07:12,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2019-10-07 09:07:12,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-07 09:07:12,725 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-07 09:07:12,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2019-10-07 09:07:12,726 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2019-10-07 09:07:12,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 09:07:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 09:07:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 09:07:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-07 09:07:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure release_net [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net_set [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-07 09:07:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2019-10-07 09:07:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ethertype_to_npindex [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_read [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2019-10-07 09:07:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2019-10-07 09:07:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2019-10-07 09:07:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unattached_ioctl [2019-10-07 09:07:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2019-10-07 09:07:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2019-10-07 09:07:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init [2019-10-07 09:07:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_start_xmit [2019-10-07 09:07:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2019-10-07 09:07:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2019-10-07 09:07:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2019-10-07 09:07:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2019-10-07 09:07:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2019-10-07 09:07:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_compress_skb [2019-10-07 09:07:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2019-10-07 09:07:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2019-10-07 09:07:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2019-10-07 09:07:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2019-10-07 09:07:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2019-10-07 09:07:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2019-10-07 09:07:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2019-10-07 09:07:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_frame [2019-10-07 09:07:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2019-10-07 09:07:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2019-10-07 09:07:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_decompress_frame [2019-10-07 09:07:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_mp_frame [2019-10-07 09:07:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_insert [2019-10-07 09:07:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_reconstruct [2019-10-07 09:07:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2019-10-07 09:07:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2019-10-07 09:07:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2019-10-07 09:07:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2019-10-07 09:07:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_name [2019-10-07 09:07:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_set_compress [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2019-10-07 09:07:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_compressor [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_compressor [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_create_interface [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2019-10-07 09:07:12,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_channel [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_connect_channel [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_cleanup [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_set [2019-10-07 09:07:12,752 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_get [2019-10-07 09:07:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2019-10-07 09:07:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2019-10-07 09:07:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pernet_operations_2 [2019-10-07 09:07:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_1 [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-07 09:07:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_14 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2019-10-07 09:07:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2019-10-07 09:07:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_18 [2019-10-07 09:07:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2019-10-07 09:07:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_20 [2019-10-07 09:07:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_21 [2019-10-07 09:07:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_23 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_24 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_25 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_26 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_27 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_29 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_30 [2019-10-07 09:07:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_31 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_32 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_33 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_34 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_36 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_37 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_38 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_39 [2019-10-07 09:07:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_40 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_41 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_43 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_45 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_46 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_dequeue_47 [2019-10-07 09:07:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_48 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_49 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_50 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_51 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_53 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_54 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_55 [2019-10-07 09:07:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_56 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_57 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_58 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_59 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_60 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_61 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_62 [2019-10-07 09:07:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_63 [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_64 [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_65 [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-07 09:07:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-07 09:07:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 09:07:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-07 09:07:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __rwlock_init [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-07 09:07:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-07 09:07:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 09:07:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 09:07:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2019-10-07 09:07:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2019-10-07 09:07:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-07 09:07:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-07 09:07:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-07 09:07:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-07 09:07:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-07 09:07:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2019-10-07 09:07:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_open_1 [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_stop_1 [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_1 [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2019-10-07 09:07:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 09:07:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pernet_device [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_chk_filter [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2019-10-07 09:07:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iovec [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull_rcsum [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2019-10-07 09:07:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_toss [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-07 09:07:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 09:07:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 09:07:12,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-10-07 09:07:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-07 09:07:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-07 09:07:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-07 09:07:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2019-10-07 09:07:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 09:07:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __rwlock_init [2019-10-07 09:07:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-07 09:07:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-07 09:07:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-07 09:07:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-07 09:07:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2019-10-07 09:07:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2019-10-07 09:07:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2019-10-07 09:07:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2019-10-07 09:07:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 09:07:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2019-10-07 09:07:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-07 09:07:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2019-10-07 09:07:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-07 09:07:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 09:07:12,796 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-07 09:07:12,797 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-07 09:07:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_20 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_25 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_27 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_31 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_32 [2019-10-07 09:07:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_33 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_34 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_37 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_38 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_39 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_40 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_43 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_46 [2019-10-07 09:07:12,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_48 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_49 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_51 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_53 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_55 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_56 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_57 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_58 [2019-10-07 09:07:12,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_59 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_60 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_64 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_23 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_24 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_26 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_29 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_30 [2019-10-07 09:07:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_45 [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_54 [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_last [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_next [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2019-10-07 09:07:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unclone [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_before [2019-10-07 09:07:12,804 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_14 [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_21 [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_36 [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_41 [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_dequeue_47 [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2019-10-07 09:07:12,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_pull [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2019-10-07 09:07:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2019-10-07 09:07:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-07 09:07:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-07 09:07:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-07 09:07:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2019-10-07 09:07:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull_rcsum [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iovec [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-07 09:07:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_loff_t [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 09:07:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 09:07:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pernet_operations_2 [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_1 [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2019-10-07 09:07:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_18 [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2019-10-07 09:07:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure release_net [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure register_pernet_device [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net_set [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_62 [2019-10-07 09:07:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_65 [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_50 [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-07 09:07:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_61 [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_63 [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2019-10-07 09:07:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure sk_chk_filter [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2019-10-07 09:07:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_name [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_compressor [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_compressor [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-07 09:07:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_toss [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unattached_ioctl [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2019-10-07 09:07:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_frame [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_decompress_frame [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_mp_frame [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_insert [2019-10-07 09:07:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_reconstruct [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_set_compress [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_create_interface [2019-10-07 09:07:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_channel [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_connect_channel [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2019-10-07 09:07:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure unit_get [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure unit_set [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ethertype_to_npindex [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2019-10-07 09:07:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_read [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2019-10-07 09:07:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_start_xmit [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2019-10-07 09:07:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure pad_compress_skb [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-07 09:07:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_cleanup [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_open_1 [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 09:07:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_1 [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_stop_1 [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-07 09:07:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 09:07:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 09:07:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 09:07:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 09:07:14,350 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 09:07:45,095 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 09:07:45,095 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 09:07:45,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:45 BoogieIcfgContainer [2019-10-07 09:07:45,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 09:07:45,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 09:07:45,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 09:07:45,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 09:07:45,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 09:07:07" (1/3) ... [2019-10-07 09:07:45,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca080aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:45, skipping insertion in model container [2019-10-07 09:07:45,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 09:07:12" (2/3) ... [2019-10-07 09:07:45,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca080aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 09:07:45, skipping insertion in model container [2019-10-07 09:07:45,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 09:07:45" (3/3) ... [2019-10-07 09:07:45,105 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2019-10-07 09:07:45,114 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 09:07:45,124 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 09:07:45,135 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 09:07:45,171 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 09:07:45,171 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 09:07:45,171 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 09:07:45,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 09:07:45,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 09:07:45,172 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 09:07:45,172 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 09:07:45,172 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 09:07:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states. [2019-10-07 09:07:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-07 09:07:45,243 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:45,245 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:07:45,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:45,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1855918427, now seen corresponding path program 1 times [2019-10-07 09:07:45,261 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:45,261 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:45,262 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:45,262 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-07 09:07:46,173 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:46,174 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:46,174 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 09:07:46,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 09:07:46,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 09:07:46,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 09:07:46,196 INFO L87 Difference]: Start difference. First operand 2404 states. Second operand 6 states. [2019-10-07 09:07:53,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:53,115 INFO L93 Difference]: Finished difference Result 6987 states and 9699 transitions. [2019-10-07 09:07:53,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 09:07:53,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-10-07 09:07:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:53,199 INFO L225 Difference]: With dead ends: 6987 [2019-10-07 09:07:53,199 INFO L226 Difference]: Without dead ends: 4608 [2019-10-07 09:07:53,225 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-07 09:07:53,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4608 states. [2019-10-07 09:07:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4608 to 4608. [2019-10-07 09:07:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4608 states. [2019-10-07 09:07:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 6234 transitions. [2019-10-07 09:07:53,652 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 6234 transitions. Word has length 88 [2019-10-07 09:07:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:53,653 INFO L462 AbstractCegarLoop]: Abstraction has 4608 states and 6234 transitions. [2019-10-07 09:07:53,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 09:07:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 6234 transitions. [2019-10-07 09:07:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 09:07:53,671 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:53,672 INFO L385 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2019-10-07 09:07:53,672 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:53,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1506192562, now seen corresponding path program 1 times [2019-10-07 09:07:53,673 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:53,674 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:53,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2019-10-07 09:07:53,976 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:53,977 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:53,977 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:53,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:53,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:53,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:53,980 INFO L87 Difference]: Start difference. First operand 4608 states and 6234 transitions. Second operand 3 states. [2019-10-07 09:07:54,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:54,581 INFO L93 Difference]: Finished difference Result 12409 states and 16697 transitions. [2019-10-07 09:07:54,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:54,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 09:07:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:54,659 INFO L225 Difference]: With dead ends: 12409 [2019-10-07 09:07:54,660 INFO L226 Difference]: Without dead ends: 7829 [2019-10-07 09:07:54,691 INFO L606 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 [2019-10-07 09:07:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2019-10-07 09:07:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7788. [2019-10-07 09:07:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7788 states. [2019-10-07 09:07:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7788 states to 7788 states and 10454 transitions. [2019-10-07 09:07:55,156 INFO L78 Accepts]: Start accepts. Automaton has 7788 states and 10454 transitions. Word has length 128 [2019-10-07 09:07:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:55,157 INFO L462 AbstractCegarLoop]: Abstraction has 7788 states and 10454 transitions. [2019-10-07 09:07:55,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 7788 states and 10454 transitions. [2019-10-07 09:07:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 09:07:55,163 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:55,163 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 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] [2019-10-07 09:07:55,164 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:55,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:55,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1231019385, now seen corresponding path program 1 times [2019-10-07 09:07:55,164 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:55,164 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:55,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:55,165 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-07 09:07:55,406 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:55,407 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:07:55,407 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:07:55,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:55,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:55,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:07:55,408 INFO L87 Difference]: Start difference. First operand 7788 states and 10454 transitions. Second operand 3 states. [2019-10-07 09:07:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:07:56,190 INFO L93 Difference]: Finished difference Result 22706 states and 30711 transitions. [2019-10-07 09:07:56,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:07:56,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-07 09:07:56,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:07:56,311 INFO L225 Difference]: With dead ends: 22706 [2019-10-07 09:07:56,311 INFO L226 Difference]: Without dead ends: 14946 [2019-10-07 09:07:56,359 INFO L606 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 [2019-10-07 09:07:56,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14946 states. [2019-10-07 09:07:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14946 to 14817. [2019-10-07 09:07:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14817 states. [2019-10-07 09:07:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14817 states to 14817 states and 20131 transitions. [2019-10-07 09:07:57,111 INFO L78 Accepts]: Start accepts. Automaton has 14817 states and 20131 transitions. Word has length 131 [2019-10-07 09:07:57,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:07:57,111 INFO L462 AbstractCegarLoop]: Abstraction has 14817 states and 20131 transitions. [2019-10-07 09:07:57,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:07:57,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14817 states and 20131 transitions. [2019-10-07 09:07:57,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 09:07:57,120 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:07:57,120 INFO L385 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 09:07:57,121 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:07:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:07:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1984277398, now seen corresponding path program 1 times [2019-10-07 09:07:57,121 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:07:57,121 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:57,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:57,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:07:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:07:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2019-10-07 09:07:57,612 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:07:57,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:07:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:07:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:07:59,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 09:07:59,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:07:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-10-07 09:07:59,095 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:07:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2019-10-07 09:07:59,293 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 09:07:59,293 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2019-10-07 09:07:59,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:07:59,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:07:59,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:07:59,295 INFO L87 Difference]: Start difference. First operand 14817 states and 20131 transitions. Second operand 3 states. [2019-10-07 09:08:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:01,992 INFO L93 Difference]: Finished difference Result 35988 states and 48812 transitions. [2019-10-07 09:08:01,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:08:01,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-07 09:08:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:02,139 INFO L225 Difference]: With dead ends: 35988 [2019-10-07 09:08:02,139 INFO L226 Difference]: Without dead ends: 21199 [2019-10-07 09:08:02,224 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21199 states. [2019-10-07 09:08:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21199 to 21127. [2019-10-07 09:08:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21127 states. [2019-10-07 09:08:03,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21127 states to 21127 states and 28600 transitions. [2019-10-07 09:08:03,177 INFO L78 Accepts]: Start accepts. Automaton has 21127 states and 28600 transitions. Word has length 180 [2019-10-07 09:08:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:03,178 INFO L462 AbstractCegarLoop]: Abstraction has 21127 states and 28600 transitions. [2019-10-07 09:08:03,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:08:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 21127 states and 28600 transitions. [2019-10-07 09:08:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 09:08:03,187 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:03,187 INFO L385 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 09:08:03,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:03,403 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:03,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:03,404 INFO L82 PathProgramCache]: Analyzing trace with hash 654896198, now seen corresponding path program 1 times [2019-10-07 09:08:03,404 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:03,404 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:03,404 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:03,404 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:03,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2019-10-07 09:08:03,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:03,735 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:08:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:05,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 09:08:05,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:08:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2019-10-07 09:08:05,437 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:08:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2019-10-07 09:08:05,602 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 09:08:05,602 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-10-07 09:08:05,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:08:05,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:08:05,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:05,604 INFO L87 Difference]: Start difference. First operand 21127 states and 28600 transitions. Second operand 3 states. [2019-10-07 09:08:06,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:06,388 INFO L93 Difference]: Finished difference Result 42236 states and 57173 transitions. [2019-10-07 09:08:06,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:08:06,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-07 09:08:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:06,508 INFO L225 Difference]: With dead ends: 42236 [2019-10-07 09:08:06,508 INFO L226 Difference]: Without dead ends: 21137 [2019-10-07 09:08:06,577 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21137 states. [2019-10-07 09:08:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21137 to 21127. [2019-10-07 09:08:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21127 states. [2019-10-07 09:08:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21127 states to 21127 states and 28588 transitions. [2019-10-07 09:08:08,678 INFO L78 Accepts]: Start accepts. Automaton has 21127 states and 28588 transitions. Word has length 180 [2019-10-07 09:08:08,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:08,680 INFO L462 AbstractCegarLoop]: Abstraction has 21127 states and 28588 transitions. [2019-10-07 09:08:08,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:08:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 21127 states and 28588 transitions. [2019-10-07 09:08:08,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 09:08:08,691 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:08,691 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 09:08:08,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:08,905 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:08,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:08,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1219961829, now seen corresponding path program 1 times [2019-10-07 09:08:08,906 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:08,906 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:08,907 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:08,907 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2019-10-07 09:08:09,231 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:09,231 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:08:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:10,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 3821 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 09:08:10,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:08:10,732 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2019-10-07 09:08:10,733 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:08:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2019-10-07 09:08:10,893 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 09:08:10,893 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-10-07 09:08:10,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:08:10,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:08:10,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:10,894 INFO L87 Difference]: Start difference. First operand 21127 states and 28588 transitions. Second operand 3 states. [2019-10-07 09:08:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:13,605 INFO L93 Difference]: Finished difference Result 42049 states and 56933 transitions. [2019-10-07 09:08:13,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:08:13,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-07 09:08:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:13,805 INFO L225 Difference]: With dead ends: 42049 [2019-10-07 09:08:13,805 INFO L226 Difference]: Without dead ends: 20872 [2019-10-07 09:08:13,887 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20872 states. [2019-10-07 09:08:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20872 to 20872. [2019-10-07 09:08:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20872 states. [2019-10-07 09:08:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20872 states to 20872 states and 28258 transitions. [2019-10-07 09:08:15,006 INFO L78 Accepts]: Start accepts. Automaton has 20872 states and 28258 transitions. Word has length 189 [2019-10-07 09:08:15,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:15,006 INFO L462 AbstractCegarLoop]: Abstraction has 20872 states and 28258 transitions. [2019-10-07 09:08:15,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:08:15,007 INFO L276 IsEmpty]: Start isEmpty. Operand 20872 states and 28258 transitions. [2019-10-07 09:08:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-07 09:08:15,020 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:15,020 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:08:15,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:15,234 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:15,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1093526270, now seen corresponding path program 1 times [2019-10-07 09:08:15,235 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:15,235 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:15,236 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:15,236 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:15,536 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2019-10-07 09:08:15,536 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:15,537 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:08:15,537 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 09:08:15,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 09:08:15,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 09:08:15,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 09:08:15,538 INFO L87 Difference]: Start difference. First operand 20872 states and 28258 transitions. Second operand 6 states. [2019-10-07 09:08:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:18,649 INFO L93 Difference]: Finished difference Result 41500 states and 56228 transitions. [2019-10-07 09:08:18,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 09:08:18,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2019-10-07 09:08:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:18,763 INFO L225 Difference]: With dead ends: 41500 [2019-10-07 09:08:18,763 INFO L226 Difference]: Without dead ends: 20868 [2019-10-07 09:08:18,829 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-07 09:08:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20868 states. [2019-10-07 09:08:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20868 to 20868. [2019-10-07 09:08:19,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20868 states. [2019-10-07 09:08:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20868 states to 20868 states and 28253 transitions. [2019-10-07 09:08:19,718 INFO L78 Accepts]: Start accepts. Automaton has 20868 states and 28253 transitions. Word has length 206 [2019-10-07 09:08:19,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:19,722 INFO L462 AbstractCegarLoop]: Abstraction has 20868 states and 28253 transitions. [2019-10-07 09:08:19,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 09:08:19,722 INFO L276 IsEmpty]: Start isEmpty. Operand 20868 states and 28253 transitions. [2019-10-07 09:08:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-07 09:08:19,735 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:19,736 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:08:19,736 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:19,736 INFO L82 PathProgramCache]: Analyzing trace with hash 271425867, now seen corresponding path program 1 times [2019-10-07 09:08:19,737 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:19,737 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:19,737 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:19,737 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-10-07 09:08:20,145 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:20,145 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:08:20,146 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 09:08:20,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 09:08:20,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 09:08:20,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:08:20,148 INFO L87 Difference]: Start difference. First operand 20868 states and 28253 transitions. Second operand 5 states. [2019-10-07 09:08:21,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:21,162 INFO L93 Difference]: Finished difference Result 41562 states and 57701 transitions. [2019-10-07 09:08:21,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 09:08:21,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2019-10-07 09:08:21,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:21,262 INFO L225 Difference]: With dead ends: 41562 [2019-10-07 09:08:21,262 INFO L226 Difference]: Without dead ends: 20944 [2019-10-07 09:08:21,322 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 09:08:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20944 states. [2019-10-07 09:08:22,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20944 to 20928. [2019-10-07 09:08:22,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20928 states. [2019-10-07 09:08:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20928 states to 20928 states and 28348 transitions. [2019-10-07 09:08:22,125 INFO L78 Accepts]: Start accepts. Automaton has 20928 states and 28348 transitions. Word has length 219 [2019-10-07 09:08:22,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:22,127 INFO L462 AbstractCegarLoop]: Abstraction has 20928 states and 28348 transitions. [2019-10-07 09:08:22,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 09:08:22,127 INFO L276 IsEmpty]: Start isEmpty. Operand 20928 states and 28348 transitions. [2019-10-07 09:08:22,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-07 09:08:22,137 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:22,137 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:08:22,138 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:22,138 INFO L82 PathProgramCache]: Analyzing trace with hash 949118768, now seen corresponding path program 1 times [2019-10-07 09:08:22,138 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:22,138 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:22,138 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:22,139 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-10-07 09:08:28,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:28,028 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:08:28,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:30,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 3977 conjuncts, 52 conjunts are in the unsatisfiable core [2019-10-07 09:08:30,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:08:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-10-07 09:08:30,901 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 09:08:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-10-07 09:08:32,728 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 09:08:32,728 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [21] total 38 [2019-10-07 09:08:32,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-07 09:08:32,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-07 09:08:32,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1286, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 09:08:32,732 INFO L87 Difference]: Start difference. First operand 20928 states and 28348 transitions. Second operand 19 states. [2019-10-07 09:08:33,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:33,962 INFO L93 Difference]: Finished difference Result 41830 states and 58083 transitions. [2019-10-07 09:08:33,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 09:08:33,963 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 223 [2019-10-07 09:08:33,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:34,057 INFO L225 Difference]: With dead ends: 41830 [2019-10-07 09:08:34,057 INFO L226 Difference]: Without dead ends: 21152 [2019-10-07 09:08:34,113 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 458 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2019-10-07 09:08:34,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21152 states. [2019-10-07 09:08:34,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21152 to 20990. [2019-10-07 09:08:34,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20990 states. [2019-10-07 09:08:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20990 states to 20990 states and 28448 transitions. [2019-10-07 09:08:34,922 INFO L78 Accepts]: Start accepts. Automaton has 20990 states and 28448 transitions. Word has length 223 [2019-10-07 09:08:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:34,923 INFO L462 AbstractCegarLoop]: Abstraction has 20990 states and 28448 transitions. [2019-10-07 09:08:34,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-07 09:08:34,923 INFO L276 IsEmpty]: Start isEmpty. Operand 20990 states and 28448 transitions. [2019-10-07 09:08:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2019-10-07 09:08:34,942 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:34,942 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:08:35,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:35,160 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -781687773, now seen corresponding path program 1 times [2019-10-07 09:08:35,161 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:35,161 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:35,161 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:35,161 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2019-10-07 09:08:35,518 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:35,518 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 09:08:35,518 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 09:08:35,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 09:08:35,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 09:08:35,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 09:08:35,520 INFO L87 Difference]: Start difference. First operand 20990 states and 28448 transitions. Second operand 3 states. [2019-10-07 09:08:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 09:08:36,126 INFO L93 Difference]: Finished difference Result 31478 states and 43766 transitions. [2019-10-07 09:08:36,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 09:08:36,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 259 [2019-10-07 09:08:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 09:08:36,242 INFO L225 Difference]: With dead ends: 31478 [2019-10-07 09:08:36,242 INFO L226 Difference]: Without dead ends: 21014 [2019-10-07 09:08:36,295 INFO L606 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 [2019-10-07 09:08:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2019-10-07 09:08:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 21002. [2019-10-07 09:08:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21002 states. [2019-10-07 09:08:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21002 states to 21002 states and 28460 transitions. [2019-10-07 09:08:37,354 INFO L78 Accepts]: Start accepts. Automaton has 21002 states and 28460 transitions. Word has length 259 [2019-10-07 09:08:37,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 09:08:37,355 INFO L462 AbstractCegarLoop]: Abstraction has 21002 states and 28460 transitions. [2019-10-07 09:08:37,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 09:08:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 21002 states and 28460 transitions. [2019-10-07 09:08:37,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2019-10-07 09:08:37,372 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 09:08:37,372 INFO L385 BasicCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 09:08:37,372 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 09:08:37,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 09:08:37,373 INFO L82 PathProgramCache]: Analyzing trace with hash 184501227, now seen corresponding path program 1 times [2019-10-07 09:08:37,373 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 09:08:37,373 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:37,373 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:37,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 09:08:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 09:08:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:47,700 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2019-10-07 09:08:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2019-10-07 09:08:49,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 09:08:49,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 09:08:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:08:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 09:08:52,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 4153 conjuncts, 109 conjunts are in the unsatisfiable core [2019-10-07 09:08:52,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 09:08:52,822 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1803 treesize of output 1801 [2019-10-07 09:08:52,829 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,808 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 291 DAG size of output: 279 [2019-10-07 09:08:54,809 INFO L567 ElimStorePlain]: treesize reduction 1440, result has 20.5 percent of original size [2019-10-07 09:08:54,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 88 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,815 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 89 variables, input treesize:289, output treesize:18 [2019-10-07 09:08:54,888 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:54,889 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,898 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:54,899 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,899 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:54,972 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:54,973 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,982 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:54,982 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:54,982 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:54,990 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:54,990 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,000 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,000 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,001 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,008 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,009 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,017 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,018 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,028 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,028 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,040 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,040 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,041 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,047 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,047 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,057 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,057 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,057 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,068 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,069 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,077 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,077 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,077 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,084 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,085 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,093 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,094 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,094 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:08:55,186 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,197 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,197 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,197 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,276 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,276 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,291 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,292 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,292 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,305 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-10-07 09:08:55,305 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:08:55,316 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:08:55,316 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:14 [2019-10-07 09:08:55,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 09:09:04,576 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-10-07 09:09:05,841 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 34 [2019-10-07 09:09:07,335 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 34 [2019-10-07 09:09:08,594 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 34 [2019-10-07 09:09:11,243 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 34 [2019-10-07 09:09:11,262 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-07 09:09:11,291 INFO L567 ElimStorePlain]: treesize reduction 3, result has 87.0 percent of original size [2019-10-07 09:09:11,291 INFO L464 ElimStorePlain]: Eliminatee |v_old(#memory_int)_BEFORE_CALL_15| vanished before elimination [2019-10-07 09:09:11,292 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-07 09:09:11,292 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:56, output treesize:14 [2019-10-07 09:09:11,298 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-07 09:09:11,310 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-07 09:09:11,311 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-07 09:09:11,311 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:51, output treesize:42 [2019-10-07 09:09:34,037 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 28 [2019-10-07 09:09:34,243 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 09:09:34,245 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 09:09:34,250 INFO L168 Benchmark]: Toolchain (without parser) took 146940.77 ms. Allocated memory was 147.3 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 89.1 MB in the beginning and 1.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 827.7 MB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,251 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4837.05 ms. Allocated memory was 147.3 MB in the beginning and 261.1 MB in the end (delta: 113.8 MB). Free memory was 88.8 MB in the beginning and 98.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,252 INFO L168 Benchmark]: Boogie Preprocessor took 478.31 ms. Allocated memory was 261.1 MB in the beginning and 322.4 MB in the end (delta: 61.3 MB). Free memory was 98.0 MB in the beginning and 226.3 MB in the end (delta: -128.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,253 INFO L168 Benchmark]: RCFGBuilder took 32471.19 ms. Allocated memory was 322.4 MB in the beginning and 822.1 MB in the end (delta: 499.6 MB). Free memory was 226.3 MB in the beginning and 159.9 MB in the end (delta: 66.4 MB). Peak memory consumption was 660.4 MB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,253 INFO L168 Benchmark]: TraceAbstraction took 109150.09 ms. Allocated memory was 822.1 MB in the beginning and 2.5 GB in the end (delta: 1.7 GB). Free memory was 159.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 223.8 MB. Max. memory is 7.1 GB. [2019-10-07 09:09:34,256 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4837.05 ms. Allocated memory was 147.3 MB in the beginning and 261.1 MB in the end (delta: 113.8 MB). Free memory was 88.8 MB in the beginning and 98.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 478.31 ms. Allocated memory was 261.1 MB in the beginning and 322.4 MB in the end (delta: 61.3 MB). Free memory was 98.0 MB in the beginning and 226.3 MB in the end (delta: -128.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 32471.19 ms. Allocated memory was 322.4 MB in the beginning and 822.1 MB in the end (delta: 499.6 MB). Free memory was 226.3 MB in the beginning and 159.9 MB in the end (delta: 66.4 MB). Peak memory consumption was 660.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 109150.09 ms. Allocated memory was 822.1 MB in the beginning and 2.5 GB in the end (delta: 1.7 GB). Free memory was 159.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 223.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.NullPointerException de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.NullPointerException: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...