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-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 05:32:46,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 05:32:46,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 05:32:46,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 05:32:46,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 05:32:46,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 05:32:46,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 05:32:46,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 05:32:46,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 05:32:46,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 05:32:46,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 05:32:46,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 05:32:46,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 05:32:46,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 05:32:46,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 05:32:46,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 05:32:46,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 05:32:46,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 05:32:46,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 05:32:46,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 05:32:46,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 05:32:46,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 05:32:46,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 05:32:46,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 05:32:46,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 05:32:46,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 05:32:46,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 05:32:46,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 05:32:46,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 05:32:46,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 05:32:46,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 05:32:46,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 05:32:46,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 05:32:46,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 05:32:46,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 05:32:46,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 05:32:46,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 05:32:46,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 05:32:46,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 05:32:46,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 05:32:46,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 05:32:46,819 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 05:32:46,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 05:32:46,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 05:32:46,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 05:32:46,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 05:32:46,844 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 05:32:46,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 05:32:46,844 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 05:32:46,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 05:32:46,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 05:32:46,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 05:32:46,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 05:32:46,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 05:32:46,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 05:32:46,847 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 05:32:46,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 05:32:46,847 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 05:32:46,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 05:32:46,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 05:32:46,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 05:32:46,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 05:32:46,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 05:32:46,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 05:32:46,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 05:32:46,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 05:32:46,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 05:32:46,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 05:32:46,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 05:32:46,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 05:32:46,850 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 05:32:47,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 05:32:47,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 05:32:47,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 05:32:47,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 05:32:47,149 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 05:32:47,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2019-10-07 05:32:47,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dfbf8d/90662ad345ac44508f9fe92562164cb3/FLAGec391352c [2019-10-07 05:32:48,056 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 05:32:48,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2019-10-07 05:32:48,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dfbf8d/90662ad345ac44508f9fe92562164cb3/FLAGec391352c [2019-10-07 05:32:48,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a8dfbf8d/90662ad345ac44508f9fe92562164cb3 [2019-10-07 05:32:48,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 05:32:48,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 05:32:48,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 05:32:48,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 05:32:48,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 05:32:48,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 05:32:48" (1/1) ... [2019-10-07 05:32:48,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445a6c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:48, skipping insertion in model container [2019-10-07 05:32:48,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 05:32:48" (1/1) ... [2019-10-07 05:32:48,619 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 05:32:48,744 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 05:32:50,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 05:32:50,588 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 05:32:50,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 05:32:51,293 INFO L192 MainTranslator]: Completed translation [2019-10-07 05:32:51,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51 WrapperNode [2019-10-07 05:32:51,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 05:32:51,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 05:32:51,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 05:32:51,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 05:32:51,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (1/1) ... [2019-10-07 05:32:51,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 05:32:51,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 05:32:51,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 05:32:51,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 05:32:51,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (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 05:32:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 05:32:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 05:32:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 05:32:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 05:32:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-10-07 05:32:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 05:32:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 05:32:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 05:32:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-07 05:32:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-07 05:32:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 05:32:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-07 05:32:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-07 05:32:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-07 05:32:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-07 05:32:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-07 05:32:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-07 05:32:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 05:32:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 05:32:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 05:32:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 05:32:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 05:32:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 05:32:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-07 05:32:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-07 05:32:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-07 05:32:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-07 05:32:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-07 05:32:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-07 05:32:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-07 05:32:51,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-07 05:32:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-07 05:32:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-07 05:32:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-07 05:32:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-07 05:32:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-07 05:32:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-07 05:32:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-07 05:32:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-07 05:32:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-07 05:32:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-07 05:32:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-07 05:32:51,650 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-07 05:32:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-07 05:32:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-07 05:32:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-07 05:32:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-07 05:32:51,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-07 05:32:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-07 05:32:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 05:32:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_1 [2019-10-07 05:32:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_2 [2019-10-07 05:32:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_3 [2019-10-07 05:32:51,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 05:32:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-07 05:32:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-07 05:32:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-07 05:32:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 05:32:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-07 05:32:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-07 05:32:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-07 05:32:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-07 05:32:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-07 05:32:51,657 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-07 05:32:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-07 05:32:51,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-07 05:32:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-07 05:32:51,661 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-07 05:32:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-07 05:32:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-07 05:32:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-07 05:32:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-07 05:32:51,662 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-07 05:32:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-07 05:32:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-07 05:32:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-07 05:32:51,663 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-07 05:32:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-07 05:32:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-07 05:32:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 05:32:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 05:32:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 05:32:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 05:32:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 05:32:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 05:32:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 05:32:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-10-07 05:32:51,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-07 05:32:51,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 05:32:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 05:32:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 05:32:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 05:32:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-07 05:32:51,677 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-07 05:32:51,678 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-07 05:32:51,679 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 05:32:51,680 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-07 05:32:51,681 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 05:32:51,682 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-07 05:32:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_2 [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-07 05:32:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-07 05:32:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-07 05:32:51,686 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-07 05:32:51,687 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-07 05:32:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_1 [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 05:32:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 05:32:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-07 05:32:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_3 [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-07 05:32:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-07 05:32:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 05:32:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 05:32:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 05:32:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 05:32:52,655 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 05:33:02,161 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 05:33:02,162 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 05:33:02,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 05:33:02 BoogieIcfgContainer [2019-10-07 05:33:02,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 05:33:02,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 05:33:02,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 05:33:02,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 05:33:02,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 05:32:48" (1/3) ... [2019-10-07 05:33:02,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4308ea9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 05:33:02, skipping insertion in model container [2019-10-07 05:33:02,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 05:32:51" (2/3) ... [2019-10-07 05:33:02,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4308ea9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 05:33:02, skipping insertion in model container [2019-10-07 05:33:02,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 05:33:02" (3/3) ... [2019-10-07 05:33:02,172 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-net-slip-ko--108_1a--1b0b0ac-1.i [2019-10-07 05:33:02,182 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 05:33:02,192 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 05:33:02,204 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 05:33:02,237 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 05:33:02,237 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 05:33:02,237 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 05:33:02,237 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 05:33:02,238 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 05:33:02,238 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 05:33:02,238 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 05:33:02,238 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 05:33:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states. [2019-10-07 05:33:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-07 05:33:02,293 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:02,294 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:02,296 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:02,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1985029107, now seen corresponding path program 1 times [2019-10-07 05:33:02,311 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:02,311 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:02,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:02,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 05:33:02,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:02,942 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:02,943 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 05:33:02,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 05:33:02,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 05:33:02,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 05:33:02,967 INFO L87 Difference]: Start difference. First operand 957 states. Second operand 10 states. [2019-10-07 05:33:03,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:03,260 INFO L93 Difference]: Finished difference Result 1893 states and 2556 transitions. [2019-10-07 05:33:03,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 05:33:03,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2019-10-07 05:33:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:03,286 INFO L225 Difference]: With dead ends: 1893 [2019-10-07 05:33:03,286 INFO L226 Difference]: Without dead ends: 913 [2019-10-07 05:33:03,296 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 05:33:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2019-10-07 05:33:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 911. [2019-10-07 05:33:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2019-10-07 05:33:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1219 transitions. [2019-10-07 05:33:03,528 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1219 transitions. Word has length 69 [2019-10-07 05:33:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:03,531 INFO L462 AbstractCegarLoop]: Abstraction has 911 states and 1219 transitions. [2019-10-07 05:33:03,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 05:33:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1219 transitions. [2019-10-07 05:33:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-07 05:33:03,547 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:03,547 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:03,547 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:03,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:03,548 INFO L82 PathProgramCache]: Analyzing trace with hash 695262301, now seen corresponding path program 1 times [2019-10-07 05:33:03,548 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:03,548 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:03,548 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:03,549 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 05:33:03,787 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:03,787 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:03,787 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 05:33:03,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 05:33:03,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 05:33:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 05:33:03,790 INFO L87 Difference]: Start difference. First operand 911 states and 1219 transitions. Second operand 7 states. [2019-10-07 05:33:03,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:03,902 INFO L93 Difference]: Finished difference Result 924 states and 1232 transitions. [2019-10-07 05:33:03,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 05:33:03,903 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-10-07 05:33:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:03,910 INFO L225 Difference]: With dead ends: 924 [2019-10-07 05:33:03,910 INFO L226 Difference]: Without dead ends: 921 [2019-10-07 05:33:03,911 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 05:33:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2019-10-07 05:33:03,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2019-10-07 05:33:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2019-10-07 05:33:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1227 transitions. [2019-10-07 05:33:03,949 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1227 transitions. Word has length 75 [2019-10-07 05:33:03,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:03,950 INFO L462 AbstractCegarLoop]: Abstraction has 919 states and 1227 transitions. [2019-10-07 05:33:03,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 05:33:03,950 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1227 transitions. [2019-10-07 05:33:03,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-07 05:33:03,954 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:03,955 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:03,955 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:03,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:03,955 INFO L82 PathProgramCache]: Analyzing trace with hash -190162036, now seen corresponding path program 1 times [2019-10-07 05:33:03,956 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:03,956 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:03,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:03,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 05:33:04,124 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:04,125 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:04,125 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 05:33:04,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 05:33:04,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 05:33:04,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 05:33:04,126 INFO L87 Difference]: Start difference. First operand 919 states and 1227 transitions. Second operand 8 states. [2019-10-07 05:33:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:04,258 INFO L93 Difference]: Finished difference Result 952 states and 1266 transitions. [2019-10-07 05:33:04,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 05:33:04,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90 [2019-10-07 05:33:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:04,267 INFO L225 Difference]: With dead ends: 952 [2019-10-07 05:33:04,268 INFO L226 Difference]: Without dead ends: 949 [2019-10-07 05:33:04,270 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-07 05:33:04,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2019-10-07 05:33:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 921. [2019-10-07 05:33:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-10-07 05:33:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1230 transitions. [2019-10-07 05:33:04,311 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1230 transitions. Word has length 90 [2019-10-07 05:33:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:04,313 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1230 transitions. [2019-10-07 05:33:04,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 05:33:04,313 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1230 transitions. [2019-10-07 05:33:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 05:33:04,319 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:04,319 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:04,319 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:04,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1665133545, now seen corresponding path program 1 times [2019-10-07 05:33:04,320 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:04,320 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:04,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:04,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 05:33:04,606 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:04,606 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:04,607 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 05:33:04,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 05:33:04,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 05:33:04,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 05:33:04,609 INFO L87 Difference]: Start difference. First operand 921 states and 1230 transitions. Second operand 4 states. [2019-10-07 05:33:06,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:06,138 INFO L93 Difference]: Finished difference Result 1831 states and 2448 transitions. [2019-10-07 05:33:06,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 05:33:06,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 05:33:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:06,147 INFO L225 Difference]: With dead ends: 1831 [2019-10-07 05:33:06,147 INFO L226 Difference]: Without dead ends: 939 [2019-10-07 05:33:06,154 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 05:33:06,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2019-10-07 05:33:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2019-10-07 05:33:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-10-07 05:33:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1246 transitions. [2019-10-07 05:33:06,228 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1246 transitions. Word has length 118 [2019-10-07 05:33:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:06,229 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 1246 transitions. [2019-10-07 05:33:06,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 05:33:06,229 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1246 transitions. [2019-10-07 05:33:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 05:33:06,234 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:06,234 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:06,234 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash 487053700, now seen corresponding path program 1 times [2019-10-07 05:33:06,235 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:06,235 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:06,235 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:06,235 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 05:33:06,537 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:06,537 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:06,537 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 05:33:06,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 05:33:06,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 05:33:06,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-07 05:33:06,539 INFO L87 Difference]: Start difference. First operand 939 states and 1246 transitions. Second operand 11 states. [2019-10-07 05:33:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:06,850 INFO L93 Difference]: Finished difference Result 1858 states and 2476 transitions. [2019-10-07 05:33:06,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 05:33:06,851 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2019-10-07 05:33:06,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:06,858 INFO L225 Difference]: With dead ends: 1858 [2019-10-07 05:33:06,859 INFO L226 Difference]: Without dead ends: 945 [2019-10-07 05:33:06,863 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-10-07 05:33:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2019-10-07 05:33:06,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2019-10-07 05:33:06,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-10-07 05:33:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1245 transitions. [2019-10-07 05:33:06,915 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1245 transitions. Word has length 120 [2019-10-07 05:33:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:06,916 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 1245 transitions. [2019-10-07 05:33:06,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 05:33:06,916 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1245 transitions. [2019-10-07 05:33:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 05:33:06,922 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:06,922 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:06,922 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:06,922 INFO L82 PathProgramCache]: Analyzing trace with hash -695346103, now seen corresponding path program 1 times [2019-10-07 05:33:06,923 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:06,923 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:06,923 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:06,923 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 05:33:07,162 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,162 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:07,163 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 05:33:07,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 05:33:07,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 05:33:07,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 05:33:07,164 INFO L87 Difference]: Start difference. First operand 939 states and 1245 transitions. Second operand 5 states. [2019-10-07 05:33:07,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:07,278 INFO L93 Difference]: Finished difference Result 1839 states and 2453 transitions. [2019-10-07 05:33:07,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 05:33:07,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2019-10-07 05:33:07,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:07,285 INFO L225 Difference]: With dead ends: 1839 [2019-10-07 05:33:07,286 INFO L226 Difference]: Without dead ends: 947 [2019-10-07 05:33:07,289 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 05:33:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2019-10-07 05:33:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 943. [2019-10-07 05:33:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2019-10-07 05:33:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1249 transitions. [2019-10-07 05:33:07,332 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1249 transitions. Word has length 124 [2019-10-07 05:33:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:07,333 INFO L462 AbstractCegarLoop]: Abstraction has 943 states and 1249 transitions. [2019-10-07 05:33:07,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 05:33:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1249 transitions. [2019-10-07 05:33:07,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 05:33:07,338 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:07,339 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:07,339 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:07,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:07,339 INFO L82 PathProgramCache]: Analyzing trace with hash 181245998, now seen corresponding path program 1 times [2019-10-07 05:33:07,340 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:07,340 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,340 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,340 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 05:33:07,457 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,457 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:07,457 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 05:33:07,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 05:33:07,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 05:33:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 05:33:07,459 INFO L87 Difference]: Start difference. First operand 943 states and 1249 transitions. Second operand 3 states. [2019-10-07 05:33:07,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:07,582 INFO L93 Difference]: Finished difference Result 1842 states and 2458 transitions. [2019-10-07 05:33:07,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 05:33:07,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 05:33:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:07,589 INFO L225 Difference]: With dead ends: 1842 [2019-10-07 05:33:07,589 INFO L226 Difference]: Without dead ends: 946 [2019-10-07 05:33:07,593 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 05:33:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2019-10-07 05:33:07,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 944. [2019-10-07 05:33:07,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2019-10-07 05:33:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1250 transitions. [2019-10-07 05:33:07,634 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1250 transitions. Word has length 146 [2019-10-07 05:33:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:07,635 INFO L462 AbstractCegarLoop]: Abstraction has 944 states and 1250 transitions. [2019-10-07 05:33:07,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 05:33:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1250 transitions. [2019-10-07 05:33:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 05:33:07,641 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:07,641 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:07,641 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:07,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1728175376, now seen corresponding path program 1 times [2019-10-07 05:33:07,642 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:07,642 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,642 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 05:33:07,753 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,753 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:07,753 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 05:33:07,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 05:33:07,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 05:33:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 05:33:07,755 INFO L87 Difference]: Start difference. First operand 944 states and 1250 transitions. Second operand 3 states. [2019-10-07 05:33:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:07,834 INFO L93 Difference]: Finished difference Result 1832 states and 2445 transitions. [2019-10-07 05:33:07,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 05:33:07,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-07 05:33:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:07,844 INFO L225 Difference]: With dead ends: 1832 [2019-10-07 05:33:07,844 INFO L226 Difference]: Without dead ends: 935 [2019-10-07 05:33:07,849 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 05:33:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2019-10-07 05:33:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 931. [2019-10-07 05:33:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-10-07 05:33:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1232 transitions. [2019-10-07 05:33:07,900 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1232 transitions. Word has length 147 [2019-10-07 05:33:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:07,901 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 1232 transitions. [2019-10-07 05:33:07,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 05:33:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1232 transitions. [2019-10-07 05:33:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 05:33:07,910 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:07,910 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:07,910 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:07,911 INFO L82 PathProgramCache]: Analyzing trace with hash -985072318, now seen corresponding path program 1 times [2019-10-07 05:33:07,911 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:07,911 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:07,911 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,912 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 05:33:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 05:33:08,164 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:08,164 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 05:33:08,164 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 05:33:08,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 05:33:08,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 05:33:08,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 05:33:08,166 INFO L87 Difference]: Start difference. First operand 931 states and 1232 transitions. Second operand 7 states. [2019-10-07 05:33:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 05:33:13,327 INFO L93 Difference]: Finished difference Result 1826 states and 2436 transitions. [2019-10-07 05:33:13,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 05:33:13,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2019-10-07 05:33:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 05:33:13,335 INFO L225 Difference]: With dead ends: 1826 [2019-10-07 05:33:13,336 INFO L226 Difference]: Without dead ends: 942 [2019-10-07 05:33:13,339 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 05:33:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2019-10-07 05:33:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 932. [2019-10-07 05:33:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2019-10-07 05:33:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1233 transitions. [2019-10-07 05:33:13,384 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1233 transitions. Word has length 156 [2019-10-07 05:33:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 05:33:13,385 INFO L462 AbstractCegarLoop]: Abstraction has 932 states and 1233 transitions. [2019-10-07 05:33:13,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 05:33:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1233 transitions. [2019-10-07 05:33:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 05:33:13,390 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 05:33:13,390 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 05:33:13,391 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 05:33:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 05:33:13,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1377057083, now seen corresponding path program 1 times [2019-10-07 05:33:13,391 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 05:33:13,391 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 05:33:13,392 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:13,392 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 05:33:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 05:33:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 05:33:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 05:33:14,405 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 05:33:14,406 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 05:33:14,575 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-07 05:33:14,580 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-07 05:33:14,581 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-07 05:33:14,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 05:33:14 BoogieIcfgContainer [2019-10-07 05:33:14,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 05:33:14,731 INFO L168 Benchmark]: Toolchain (without parser) took 26124.95 ms. Allocated memory was 145.8 MB in the beginning and 556.3 MB in the end (delta: 410.5 MB). Free memory was 93.4 MB in the beginning and 141.0 MB in the end (delta: -47.6 MB). Peak memory consumption was 362.9 MB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,735 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2690.58 ms. Allocated memory was 145.8 MB in the beginning and 254.3 MB in the end (delta: 108.5 MB). Free memory was 93.2 MB in the beginning and 189.7 MB in the end (delta: -96.5 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,738 INFO L168 Benchmark]: Boogie Preprocessor took 266.41 ms. Allocated memory is still 254.3 MB. Free memory was 189.7 MB in the beginning and 173.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,746 INFO L168 Benchmark]: RCFGBuilder took 10600.87 ms. Allocated memory was 254.3 MB in the beginning and 378.5 MB in the end (delta: 124.3 MB). Free memory was 173.1 MB in the beginning and 145.7 MB in the end (delta: 27.4 MB). Peak memory consumption was 193.8 MB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,748 INFO L168 Benchmark]: TraceAbstraction took 12562.25 ms. Allocated memory was 378.5 MB in the beginning and 556.3 MB in the end (delta: 177.7 MB). Free memory was 145.7 MB in the beginning and 141.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2019-10-07 05:33:14,759 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 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2690.58 ms. Allocated memory was 145.8 MB in the beginning and 254.3 MB in the end (delta: 108.5 MB). Free memory was 93.2 MB in the beginning and 189.7 MB in the end (delta: -96.5 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 266.41 ms. Allocated memory is still 254.3 MB. Free memory was 189.7 MB in the beginning and 173.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10600.87 ms. Allocated memory was 254.3 MB in the beginning and 378.5 MB in the end (delta: 124.3 MB). Free memory was 173.1 MB in the beginning and 145.7 MB in the end (delta: 27.4 MB). Peak memory consumption was 193.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12562.25 ms. Allocated memory was 378.5 MB in the beginning and 556.3 MB in the end (delta: 177.7 MB). Free memory was 145.7 MB in the beginning and 141.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch506 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7113]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 4857, overapproximation of bitwiseAnd at line 4724. Possible FailurePath: [L5018] static struct net_device **slip_devs ; [L5019] static int slip_maxdev = 256; [L5834-L5837] static struct net_device_ops const sl_netdev_ops = {& sl_init, & sl_uninit, & sl_open, & sl_close, & sl_xmit, 0, 0, 0, 0, 0, 0, & sl_ioctl, 0, & sl_change_mtu, 0, & sl_tx_timeout, & sl_get_stats64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6707-L6710] static struct tty_ldisc_ops sl_ldisc = {21507, (char *)"slip", 0, 0, & slip_open, & slip_close, 0, 0, 0, 0, & slip_ioctl, & slip_compat_ioctl, 0, 0, & slip_hangup, & slip_receive_buf, & slip_write_wakeup, 0, & __this_module, 0}; [L6894] int LDV_IN_INTERRUPT ; [L6897] struct net_device *var_group1 ; [L6898] int res_sl_init_14 ; [L6899] int res_sl_open_11 ; [L6900] int res_sl_close_10 ; [L6901] struct sk_buff *var_group2 ; [L6902] struct rtnl_link_stats64 *var_group3 ; [L6903] int var_sl_change_mtu_12_p1 ; [L6904] struct ifreq *var_group4 ; [L6905] int var_sl_ioctl_30_p2 ; [L6906] struct tty_struct *var_group5 ; [L6907] int res_slip_open_21 ; [L6908] struct file *var_group6 ; [L6909] unsigned int var_slip_ioctl_28_p2 ; [L6910] unsigned long var_slip_ioctl_28_p3 ; [L6911] unsigned int var_slip_compat_ioctl_29_p2 ; [L6912] unsigned long var_slip_compat_ioctl_29_p3 ; [L6913] unsigned char const *var_slip_receive_buf_18_p1 ; [L6914] char *var_slip_receive_buf_18_p2 ; [L6915] int var_slip_receive_buf_18_p3 ; [L6916] unsigned long var_sl_keepalive_34_p0 ; [L6917] unsigned long var_sl_outfill_33_p0 ; [L6918] int ldv_s_sl_netdev_ops_net_device_ops ; [L6919] int ldv_s_sl_ldisc_tty_ldisc_ops ; [L6920] int tmp ; [L6921] int tmp___0 ; [L6922] int tmp___1 ; [L6924] ldv_s_sl_netdev_ops_net_device_ops = 0 [L6925] ldv_s_sl_ldisc_tty_ldisc_ops = 0 [L6926] LDV_IN_INTERRUPT = 1 VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L6927] FCALL ldv_initialize() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L6928] FCALL ldv_handler_precall() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L6929] CALL, EXPR slip_init() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L6713] int status ; [L6714] void *tmp ; [L6716] COND FALSE !(slip_maxdev <= 3) [L6724] CALL, EXPR kzalloc((unsigned long )slip_maxdev * 8UL, 208U) VAL [\old(flags)=208, \old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4855] void *tmp ; VAL [\old(flags)=208, \old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, flags=208, LDV_IN_INTERRUPT=1, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4857] CALL, EXPR kmalloc(size, flags | 32768U) VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4847] void *tmp___2 ; VAL [\old(flags)=2147483658, \old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, flags=2147483658, LDV_IN_INTERRUPT=1, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4849] CALL, EXPR __kmalloc(size, flags) VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, \old(t)=2147483658, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4843] CALL, EXPR ldv_malloc(size) VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4833] COND TRUE __VERIFIER_nondet_int() [L4834] void *res = malloc(size); VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, malloc(size)={1:0}, res={1:0}, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4835] CALL ldv_is_err(res) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ptr={1:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4829] return ((unsigned long)ptr > ((unsigned long)-4095)); [L4835] RET ldv_is_err(res) VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_is_err(res)=0, malloc(size)={1:0}, res={1:0}, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4836] return res; VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, \result={1:0}, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, malloc(size)={1:0}, res={1:0}, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4843] RET, EXPR ldv_malloc(size) VAL [\old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, \old(t)=2147483658, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_malloc(size)={1:0}, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256, t=2147483658] [L4843] return ldv_malloc(size); [L4849] RET, EXPR __kmalloc(size, flags) VAL [\old(flags)=2147483658, \old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __kmalloc(size, flags)={1:0}, __this_module={2147483654:2147483648}, flags=2147483658, LDV_IN_INTERRUPT=1, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4849] tmp___2 = __kmalloc(size, flags) [L4850] return (tmp___2); [L4857] RET, EXPR kmalloc(size, flags | 32768U) VAL [\old(flags)=208, \old(LDV_IN_INTERRUPT)=0, \old(size)=2048, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, flags=208, kmalloc(size, flags | 32768U)={1:0}, LDV_IN_INTERRUPT=1, size=2048, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L4857] tmp = kmalloc(size, flags | 32768U) [L4858] return (tmp); [L6724] RET, EXPR kzalloc((unsigned long )slip_maxdev * 8UL, 208U) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, kzalloc((unsigned long )slip_maxdev * 8UL, 208U)={1:0}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={0:0}, slip_maxdev=256] [L6724] tmp = kzalloc((unsigned long )slip_maxdev * 8UL, 208U) [L6725] slip_devs = (struct net_device **)tmp VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp={1:0}] [L6726] COND FALSE !((unsigned long )slip_devs == (unsigned long )((struct net_device **)0)) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp={1:0}] [L6731] CALL, EXPR tty_register_ldisc(1, & sl_ldisc) VAL [\old(arg0)=1, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, arg1={-26:0}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7273] return __VERIFIER_nondet_int(); [L6731] RET, EXPR tty_register_ldisc(1, & sl_ldisc) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp={1:0}, tty_register_ldisc(1, & sl_ldisc)=0] [L6731] status = tty_register_ldisc(1, & sl_ldisc) [L6732] COND FALSE !(status != 0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, status=0, tmp={1:0}] [L6737] return (status); VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, \result=0, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, status=0, tmp={1:0}] [L6929] RET, EXPR slip_init() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_init()=0, slip_maxdev=256] [L6929] tmp = slip_init() [L6930] COND FALSE !(tmp != 0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=0] [L7060] tmp___1 = __VERIFIER_nondet_int() [L7061] COND TRUE (tmp___1 != 0 || ldv_s_sl_netdev_ops_net_device_ops != 0) || ldv_s_sl_ldisc_tty_ldisc_ops != 0 [L6936] tmp___0 = __VERIFIER_nondet_int() [L6938] case 0: [L6951] case 1: [L6964] case 2: [L6977] case 3: [L6985] case 4: [L6989] case 5: [L6993] case 6: [L6997] case 7: [L7001] case 8: [L7005] case 9: VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=0, tmp___0=9, tmp___1=1] [L7006] COND TRUE ldv_s_sl_ldisc_tty_ldisc_ops == 0 VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=0, tmp___0=9, tmp___1=1] [L7007] FCALL ldv_handler_precall() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ldv_s_sl_ldisc_tty_ldisc_ops=0, ldv_s_sl_netdev_ops_net_device_ops=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=0, tmp___0=9, tmp___1=1] [L7008] CALL ldv_slip_open_3(var_group5) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tty={1:0}] [L7101] ldv_func_ret_type___1 ldv_func_res ; [L7102] int tmp ; VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tty={1:0}, tty={1:0}] [L7104] CALL, EXPR slip_open(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tty={1:0}] [L6021] struct slip *sl ; [L6022] int err ; [L6023] int tmp ; [L6024] dev_t tmp___0 ; [L6025] struct task_struct *tmp___1 ; [L6026] int tmp___2 ; VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tty={1:0}, tty={1:0}] [L6028] CALL, EXPR capable(12) VAL [\old(arg0)=12, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7157] return __VERIFIER_nondet_int(); [L6028] RET, EXPR capable(12) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, capable(12)=1, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tty={1:0}, tty={1:0}] [L6028] tmp = capable(12) [L6029] COND FALSE !(tmp == 0) [L6033] EXPR tty->ops [L6033] EXPR (tty->ops)->write VAL [(tty->ops)->write={3:-2}, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}, tty->ops={2147483730:0}] [L6033-L6035] COND FALSE !((unsigned long )(tty->ops)->write == (unsigned long )((int (* )(struct tty_struct * , unsigned char const * , int ))0)) [L6039] FCALL rtnl_lock() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}] [L6040] CALL sl_sync() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5909] int i ; [L5910] struct net_device *dev ; [L5911] struct slip *sl ; [L5912] void *tmp ; [L5914] i = 0 VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, i=0, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5935] COND TRUE i < slip_maxdev [L5917] EXPR slip_devs + (unsigned long )i [L5917] dev = *(slip_devs + (unsigned long )i) [L5918] COND TRUE (unsigned long )dev == (unsigned long )((struct net_device *)0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L6040] RET sl_sync() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}] [L6041] EXPR tty->disc_data [L6041] sl = (struct slip *)tty->disc_data [L6042] err = -17 [L6043] (unsigned long )sl != (unsigned long )((struct slip *)0) && sl->magic == 21250 VAL [(unsigned long )sl != (unsigned long )((struct slip *)0) && sl->magic == 21250=0, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-17, LDV_IN_INTERRUPT=1, sl={0:0}, sl->magic=2147483697, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}] [L6043] COND FALSE !((unsigned long )sl != (unsigned long )((struct slip *)0) && sl->magic == 21250) [L6047] err = -23 VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={0:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}] [L6048] CALL, EXPR tty_devnum(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, arg0={1:0}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7262] return __VERIFIER_nondet_uint(); [L6048] RET, EXPR tty_devnum(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={0:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tty={1:0}, tty={1:0}, tty_devnum(tty)=2147483723] [L6048] tmp___0 = tty_devnum(tty) [L6049] CALL, EXPR sl_alloc(tmp___0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5945] int i ; [L5946] struct net_device *dev ; [L5947] struct slip *sl ; [L5948] void *tmp ; [L5949] int tmp___0 ; [L5950] char name[16U] ; [L5951] void *tmp___1 ; [L5952] struct lock_class_key __key ; [L5953] struct lock_class_key __key___0 ; [L5954] struct lock_class_key __key___1 ; [L5956] dev = 0 VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={0:0}, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5957] COND FALSE !((unsigned long )slip_devs == (unsigned long )((struct net_device **)0)) [L5961] i = 0 VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5971] COND TRUE i < slip_maxdev [L5964] EXPR slip_devs + (unsigned long )i [L5964] dev = *(slip_devs + (unsigned long )i) [L5965] COND TRUE (unsigned long )dev == (unsigned long )((struct net_device *)0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5976] COND FALSE !(i >= slip_maxdev) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5980] COND FALSE !((unsigned long )dev != (unsigned long )((struct net_device *)0)) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5992] COND TRUE (unsigned long )dev == (unsigned long )((struct net_device *)0) [L5994] CALL, EXPR alloc_netdev_mqs(472, (char const *)(& name), & sl_setup, 1U, 1U) VAL [\old(arg0)=472, \old(arg3)=1, \old(arg4)=1, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, arg1={-3:0}, arg2={-1:10}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7153] CALL, EXPR external_alloc() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7290] return __VERIFIER_nondet_pointer(); [L7153] RET, EXPR external_alloc() VAL [\old(arg0)=472, \old(arg3)=1, \old(arg4)=1, \old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, arg0=472, arg1={-3:0}, arg1={-3:0}, arg2={-1:10}, arg2={-1:10}, arg3=1, arg4=1, external_alloc()={1:607}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7153] return (struct net_device *)external_alloc(); [L5994] RET, EXPR alloc_netdev_mqs(472, (char const *)(& name), & sl_setup, 1U, 1U) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, alloc_netdev_mqs(472, (char const *)(& name), & sl_setup, 1U, 1U)={1:607}, dev={0:0}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L5994] dev = alloc_netdev_mqs(472, (char const *)(& name), & sl_setup, 1U, 1U) [L5995] COND FALSE !((unsigned long )dev == (unsigned long )((struct net_device *)0)) [L5999] dev->base_addr = (unsigned long )i VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L6002] CALL, EXPR netdev_priv((struct net_device const *)dev) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, dev={1:607}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L4887] return ((void *)dev + 2496U); [L6002] RET, EXPR netdev_priv((struct net_device const *)dev) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, netdev_priv((struct net_device const *)dev)={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L6002] tmp___1 = netdev_priv((struct net_device const *)dev) [L6003] sl = (struct slip *)tmp___1 [L6004] sl->magic = 21250 [L6005] sl->dev = dev VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6006] CALL spinlock_check(& sl->lock) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, lock={1:3115}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L4767] return (& lock->ldv_5934.rlock); [L6006] RET spinlock_check(& sl->lock) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, spinlock_check(& sl->lock)={1:3115}, tmp___1={1:3103}] [L6007] FCALL __raw_spin_lock_init(& sl->lock.ldv_5934.rlock, "&(&sl->lock)->rlock", & __key) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6008] sl->mode = 8U VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6009] FCALL init_timer_key(& sl->keepalive_timer, "&sl->keepalive_timer", & __key___0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6010] sl->keepalive_timer.data = (unsigned long )sl [L6011] sl->keepalive_timer.function = & sl_keepalive VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6012] FCALL init_timer_key(& sl->outfill_timer, "&sl->outfill_timer", & __key___1) VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __key={-33:0}, __key___0={-31:0}, __key___1={-32:0}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, name={-3:0}, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6013] sl->outfill_timer.data = (unsigned long )sl [L6014] sl->outfill_timer.function = & sl_outfill [L6015] *(slip_devs + (unsigned long )i) = dev [L6016] return (sl); [L6016] return (sl); [L6016] return (sl); [L6016] return (sl); [L6016] return (sl); VAL [\old(LDV_IN_INTERRUPT)=0, \old(line)=2147483723, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, \result={1:3103}, __this_module={2147483654:2147483648}, dev={1:607}, i=0, LDV_IN_INTERRUPT=1, line=2147483723, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp___1={1:3103}] [L6049] RET, EXPR sl_alloc(tmp___0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={0:0}, sl_alloc(tmp___0)={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tty={1:0}, tty={1:0}] [L6049] sl = sl_alloc(tmp___0) [L6050] COND FALSE !((unsigned long )sl == (unsigned long )((struct slip *)0)) [L6054] sl->tty = tty [L6055] tty->disc_data = (void *)sl VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tty={1:0}, tty={1:0}] [L6056] CALL, EXPR tty_devnum(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, arg0={1:0}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7262] return __VERIFIER_nondet_uint(); [L6056] RET, EXPR tty_devnum(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tty={1:0}, tty={1:0}, tty_devnum(tty)=2147483686] [L6056] sl->line = tty_devnum(tty) [L6057] CALL, EXPR get_current() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L4735] struct task_struct *pfo_ret__ ; [L4738] case 1UL: [L4741] case 2UL: [L4744] case 4UL: [L4747] case 8UL: [L4754] return (pfo_ret__); [L6057] RET, EXPR get_current() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, get_current()={2147483712:0}, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tty={1:0}, tty={1:0}] [L6057] tmp___1 = get_current() [L6058] EXPR tmp___1->pid [L6058] sl->pid = tmp___1->pid [L6059] CALL, EXPR constant_test_bit(0U, (unsigned long const volatile *)(& sl->flags)) VAL [\old(LDV_IN_INTERRUPT)=0, \old(nr)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, addr={1:3211}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L4724] EXPR addr + (unsigned long )(nr / 64U) [L4724] return ((int )((unsigned long )*(addr + (unsigned long )(nr / 64U)) >> ((int )nr & 63)) & 1); [L6059] RET, EXPR constant_test_bit(0U, (unsigned long const volatile *)(& sl->flags)) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, constant_test_bit(0U, (unsigned long const volatile *)(& sl->flags))=1, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tmp___1={2147483712:0}, tty={1:0}, tty={1:0}] [L6059] tmp___2 = constant_test_bit(0U, (unsigned long const volatile *)(& sl->flags)) [L6060] COND FALSE !(tmp___2 == 0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tmp___1={2147483712:0}, tmp___2=1, tty={1:0}, tty={1:0}] [L6074] EXPR sl->keepalive VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl->keepalive=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tmp___1={2147483712:0}, tmp___2=1, tty={1:0}, tty={1:0}] [L6074] COND FALSE !((unsigned int )sl->keepalive != 0U) [L6079] EXPR sl->outfill VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl->outfill=0, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tmp___1={2147483712:0}, tmp___2=1, tty={1:0}, tty={1:0}] [L6079] COND FALSE !((unsigned int )sl->outfill != 0U) [L6084] FCALL rtnl_unlock() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, err=-23, LDV_IN_INTERRUPT=1, sl={1:3103}, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=1, tmp___0=2147483723, tmp___1={2147483712:0}, tmp___2=1, tty={1:0}, tty={1:0}] [L6085] tty->receive_room = 65536U [L6086] EXPR sl->dev [L6086] EXPR (sl->dev)->base_addr [L6086] return ((int )(sl->dev)->base_addr); [L7104] RET, EXPR slip_open(tty) VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, slip_open(tty)=2147483647, tty={1:0}, tty={1:0}] [L7104] tmp = slip_open(tty) [L7105] ldv_func_res = tmp VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, ldv_func_res=2147483647, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256, tmp=2147483647, tty={1:0}, tty={1:0}] [L7106] CALL ldv_check_callback_ret_val(ldv_func_res) VAL [\old(LDV_IN_INTERRUPT)=0, \old(ret_val)=2147483647, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7119] COND FALSE !(ret_val <= 0) VAL [\old(LDV_IN_INTERRUPT)=0, \old(ret_val)=2147483647, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, ret_val=2147483647, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7121] CALL ldv_error() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] [L7113] __VERIFIER_error() VAL [\old(LDV_IN_INTERRUPT)=0, \old(slip_devs)=0, \old(slip_devs)=0, \old(slip_maxdev)=256, __this_module={2147483654:2147483648}, LDV_IN_INTERRUPT=1, sl_ldisc={-26:0}, sl_netdev_ops={-24:0}, slip_devs={1:0}, slip_maxdev=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 127 procedures, 968 locations, 1 error locations. Result: UNSAFE, OverallTime: 12.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10742 SDtfs, 2625 SDslu, 41750 SDs, 0 SdLazy, 3024 SolverSat, 1091 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 58 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1202 NumberOfCodeBlocks, 1202 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1036 ConstructedInterpolants, 0 QuantifiedInterpolants, 228413 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...