java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:18:23,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:18:23,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:18:23,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:18:23,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:18:23,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:18:23,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:18:23,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:18:23,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:18:23,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:18:23,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:18:23,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:18:23,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:18:23,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:18:23,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:18:23,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:18:23,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:18:23,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:18:23,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:18:23,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:18:23,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:18:23,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:18:23,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:18:23,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:18:23,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:18:23,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:18:23,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:18:23,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:18:23,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:18:23,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:18:23,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:18:23,436 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:18:23,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:18:23,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:18:23,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:18:23,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:18:23,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:18:23,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:18:23,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:18:23,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:18:23,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:18:23,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 22:18:23,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:18:23,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:18:23,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:18:23,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:18:23,460 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:18:23,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:18:23,460 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:18:23,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:18:23,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:18:23,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:18:23,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:18:23,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:18:23,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:18:23,461 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:18:23,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:18:23,462 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:18:23,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:18:23,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:18:23,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:18:23,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:18:23,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:18:23,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:18:23,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:18:23,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:18:23,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:18:23,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:18:23,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:18:23,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:18:23,465 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 [2019-10-13 22:18:23,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:18:23,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:18:23,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:18:23,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:18:23,797 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:18:23,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i [2019-10-13 22:18:23,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff26e35d4/6dedb3a2f2914b49b1fd23dac713a4fe/FLAG7d28baa72 [2019-10-13 22:18:24,720 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:18:24,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i [2019-10-13 22:18:24,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff26e35d4/6dedb3a2f2914b49b1fd23dac713a4fe/FLAG7d28baa72 [2019-10-13 22:18:25,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff26e35d4/6dedb3a2f2914b49b1fd23dac713a4fe [2019-10-13 22:18:25,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:18:25,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:18:25,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:18:25,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:18:25,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:18:25,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:25" (1/1) ... [2019-10-13 22:18:25,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0cd13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:25, skipping insertion in model container [2019-10-13 22:18:25,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:25" (1/1) ... [2019-10-13 22:18:25,296 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:18:25,425 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:18:27,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:18:27,275 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:18:27,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:18:28,062 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:18:28,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28 WrapperNode [2019-10-13 22:18:28,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:18:28,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:18:28,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:18:28,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:18:28,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... [2019-10-13 22:18:28,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:18:28,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:18:28,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:18:28,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:18:28,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:18:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:18:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:18:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:18:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:18:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:18:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:18:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 22:18:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 22:18:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:18:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2019-10-13 22:18:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2019-10-13 22:18:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2019-10-13 22:18:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2019-10-13 22:18:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2019-10-13 22:18:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2019-10-13 22:18:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:18:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:18:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:18:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 22:18:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 22:18:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 22:18:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-10-13 22:18:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-13 22:18:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_tx_timestamp [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:18:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:18:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:18:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:18:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 22:18:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync_lockdep [2019-10-13 22:18:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync_lockdep_irqsave [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep_irqrestore [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-13 22:18:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_open [2019-10-13 22:18:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_close [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_tx_timeout [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_start_xmit [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_interrupt [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_poll [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_err [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_intr [2019-10-13 22:18:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_receive [2019-10-13 22:18:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_rx_overrun [2019-10-13 22:18:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_get_stats [2019-10-13 22:18:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure make_mc_bits [2019-10-13 22:18:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure do_set_multicast_list [2019-10-13 22:18:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_set_multicast_list [2019-10-13 22:18:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ethdev_setup [2019-10-13 22:18:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ____alloc_ei_netdev [2019-10-13 22:18:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __NS8390_init [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_trigger_send [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_open [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_close [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_start_xmit [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_get_stats [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_set_multicast_list [2019-10-13 22:18:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_timeout [2019-10-13 22:18:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_interrupt [2019-10-13 22:18:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_poll [2019-10-13 22:18:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_ei_netdev [2019-10-13 22:18:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_init [2019-10-13 22:18:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ns8390_module_init [2019-10-13 22:18:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ns8390_module_exit [2019-10-13 22:18:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_1 [2019-10-13 22:18:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2019-10-13 22:18:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:18:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 22:18:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 22:18:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 22:18:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 22:18:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 22:18:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2019-10-13 22:18:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2019-10-13 22:18:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 22:18:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 22:18:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 22:18:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:18:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:18:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:18:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-13 22:18:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2019-10-13 22:18:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-10-13 22:18:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-13 22:18:28,447 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2019-10-13 22:18:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2019-10-13 22:18:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2019-10-13 22:18:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2019-10-13 22:18:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2019-10-13 22:18:28,449 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_1 [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_1 [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2019-10-13 22:18:28,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-10-13 22:18:28,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2019-10-13 22:18:28,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-10-13 22:18:28,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:18:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone_tx_timestamp [2019-10-13 22:18:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_defer_rx_timestamp [2019-10-13 22:18:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 22:18:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tstamp_tx [2019-10-13 22:18:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2019-10-13 22:18:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2019-10-13 22:18:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 22:18:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:18:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:18:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:18:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:18:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:18:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:18:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:18:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:18:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:18:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2019-10-13 22:18:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:18:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2019-10-13 22:18:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2019-10-13 22:18:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2019-10-13 22:18:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:18:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 22:18:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:18:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone_tx_timestamp [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_defer_rx_timestamp [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tstamp_tx [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure sw_tx_timestamp [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 22:18:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:18:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:18:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_1 [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2019-10-13 22:18:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync_lockdep [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync_lockdep_irqsave [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep_irqrestore [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-13 22:18:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-13 22:18:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2019-10-13 22:18:28,476 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2019-10-13 22:18:28,477 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_poll [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_init [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_open [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_close [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_interrupt [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_timeout [2019-10-13 22:18:28,478 INFO L130 BoogieDeclarations]: Found specification of procedure ei_start_xmit [2019-10-13 22:18:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure ei_set_multicast_list [2019-10-13 22:18:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure ei_get_stats [2019-10-13 22:18:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_ei_netdev [2019-10-13 22:18:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_intr [2019-10-13 22:18:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_err [2019-10-13 22:18:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure ei_receive [2019-10-13 22:18:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure ei_rx_overrun [2019-10-13 22:18:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_trigger_send [2019-10-13 22:18:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure do_set_multicast_list [2019-10-13 22:18:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure __NS8390_init [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_open [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_close [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_tx_timeout [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:18:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:18:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_start_xmit [2019-10-13 22:18:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:18:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:18:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:18:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_interrupt [2019-10-13 22:18:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_poll [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_get_stats [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure make_mc_bits [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_set_multicast_list [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ethdev_setup [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ____alloc_ei_netdev [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ns8390_module_init [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ns8390_module_exit [2019-10-13 22:18:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_1 [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_1 [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 22:18:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 22:18:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:18:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:18:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:18:29,583 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:18:36,960 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:18:36,961 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 22:18:36,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:18:36 BoogieIcfgContainer [2019-10-13 22:18:36,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:18:36,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:18:36,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:18:36,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:18:36,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:18:25" (1/3) ... [2019-10-13 22:18:36,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f7895b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:18:36, skipping insertion in model container [2019-10-13 22:18:36,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:28" (2/3) ... [2019-10-13 22:18:36,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f7895b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:18:36, skipping insertion in model container [2019-10-13 22:18:36,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:18:36" (3/3) ... [2019-10-13 22:18:36,972 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i [2019-10-13 22:18:36,982 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:18:36,994 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:18:37,005 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:18:37,043 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:18:37,043 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:18:37,043 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:18:37,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:18:37,044 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:18:37,044 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:18:37,044 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:18:37,044 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:18:37,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states. [2019-10-13 22:18:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 22:18:37,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:37,105 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:37,107 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:37,113 INFO L82 PathProgramCache]: Analyzing trace with hash -736389471, now seen corresponding path program 1 times [2019-10-13 22:18:37,122 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:37,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649829837] [2019-10-13 22:18:37,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:37,123 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:37,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 22:18:37,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649829837] [2019-10-13 22:18:37,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:37,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:18:37,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610851018] [2019-10-13 22:18:37,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:18:37,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:37,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:18:37,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:37,870 INFO L87 Difference]: Start difference. First operand 1018 states. Second operand 3 states. [2019-10-13 22:18:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:38,779 INFO L93 Difference]: Finished difference Result 2891 states and 4033 transitions. [2019-10-13 22:18:38,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:18:38,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-10-13 22:18:38,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:38,825 INFO L225 Difference]: With dead ends: 2891 [2019-10-13 22:18:38,825 INFO L226 Difference]: Without dead ends: 1897 [2019-10-13 22:18:38,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2019-10-13 22:18:39,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2019-10-13 22:18:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2019-10-13 22:18:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2595 transitions. [2019-10-13 22:18:39,099 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2595 transitions. Word has length 55 [2019-10-13 22:18:39,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:39,099 INFO L462 AbstractCegarLoop]: Abstraction has 1897 states and 2595 transitions. [2019-10-13 22:18:39,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:18:39,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2595 transitions. [2019-10-13 22:18:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 22:18:39,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:39,105 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:39,106 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:39,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:39,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1179551353, now seen corresponding path program 1 times [2019-10-13 22:18:39,106 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:39,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991799343] [2019-10-13 22:18:39,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:39,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:39,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 22:18:39,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991799343] [2019-10-13 22:18:39,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:39,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:18:39,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177718857] [2019-10-13 22:18:39,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:18:39,366 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:39,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:18:39,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:18:39,367 INFO L87 Difference]: Start difference. First operand 1897 states and 2595 transitions. Second operand 5 states. [2019-10-13 22:18:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:39,613 INFO L93 Difference]: Finished difference Result 3774 states and 5166 transitions. [2019-10-13 22:18:39,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:18:39,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-10-13 22:18:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:39,628 INFO L225 Difference]: With dead ends: 3774 [2019-10-13 22:18:39,628 INFO L226 Difference]: Without dead ends: 1897 [2019-10-13 22:18:39,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:18:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2019-10-13 22:18:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2019-10-13 22:18:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2019-10-13 22:18:39,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2593 transitions. [2019-10-13 22:18:39,781 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2593 transitions. Word has length 57 [2019-10-13 22:18:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:39,781 INFO L462 AbstractCegarLoop]: Abstraction has 1897 states and 2593 transitions. [2019-10-13 22:18:39,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:18:39,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2593 transitions. [2019-10-13 22:18:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 22:18:39,790 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:39,790 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:39,791 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:39,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1930071232, now seen corresponding path program 1 times [2019-10-13 22:18:39,791 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:39,791 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965225559] [2019-10-13 22:18:39,792 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:39,792 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:39,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-13 22:18:40,253 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965225559] [2019-10-13 22:18:40,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:40,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 22:18:40,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108187597] [2019-10-13 22:18:40,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 22:18:40,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:40,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 22:18:40,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 22:18:40,256 INFO L87 Difference]: Start difference. First operand 1897 states and 2593 transitions. Second operand 6 states. [2019-10-13 22:18:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:42,337 INFO L93 Difference]: Finished difference Result 3782 states and 5220 transitions. [2019-10-13 22:18:42,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:18:42,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-13 22:18:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:42,365 INFO L225 Difference]: With dead ends: 3782 [2019-10-13 22:18:42,365 INFO L226 Difference]: Without dead ends: 3768 [2019-10-13 22:18:42,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:18:42,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2019-10-13 22:18:43,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3768. [2019-10-13 22:18:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3768 states. [2019-10-13 22:18:43,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5206 transitions. [2019-10-13 22:18:43,082 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5206 transitions. Word has length 87 [2019-10-13 22:18:43,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:43,083 INFO L462 AbstractCegarLoop]: Abstraction has 3768 states and 5206 transitions. [2019-10-13 22:18:43,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 22:18:43,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5206 transitions. [2019-10-13 22:18:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 22:18:43,101 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:43,101 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:43,102 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:43,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:43,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1315456422, now seen corresponding path program 1 times [2019-10-13 22:18:43,102 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:43,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243317130] [2019-10-13 22:18:43,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:43,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:43,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-10-13 22:18:43,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243317130] [2019-10-13 22:18:43,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:43,344 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:18:43,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602441365] [2019-10-13 22:18:43,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:18:43,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:43,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:18:43,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:43,346 INFO L87 Difference]: Start difference. First operand 3768 states and 5206 transitions. Second operand 3 states. [2019-10-13 22:18:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:43,702 INFO L93 Difference]: Finished difference Result 9020 states and 12357 transitions. [2019-10-13 22:18:43,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:18:43,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-13 22:18:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:43,740 INFO L225 Difference]: With dead ends: 9020 [2019-10-13 22:18:43,741 INFO L226 Difference]: Without dead ends: 5272 [2019-10-13 22:18:43,758 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2019-10-13 22:18:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5246. [2019-10-13 22:18:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5246 states. [2019-10-13 22:18:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 7146 transitions. [2019-10-13 22:18:44,031 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 7146 transitions. Word has length 238 [2019-10-13 22:18:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:44,032 INFO L462 AbstractCegarLoop]: Abstraction has 5246 states and 7146 transitions. [2019-10-13 22:18:44,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:18:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 7146 transitions. [2019-10-13 22:18:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 22:18:44,056 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:44,056 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:44,056 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:44,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:44,057 INFO L82 PathProgramCache]: Analyzing trace with hash 851825784, now seen corresponding path program 1 times [2019-10-13 22:18:44,057 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:44,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116508527] [2019-10-13 22:18:44,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:44,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:44,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-10-13 22:18:44,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116508527] [2019-10-13 22:18:44,368 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:44,368 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:18:44,368 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474864180] [2019-10-13 22:18:44,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:18:44,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:18:44,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:44,374 INFO L87 Difference]: Start difference. First operand 5246 states and 7146 transitions. Second operand 3 states. [2019-10-13 22:18:44,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:44,723 INFO L93 Difference]: Finished difference Result 10563 states and 14390 transitions. [2019-10-13 22:18:44,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:18:44,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-13 22:18:44,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:44,768 INFO L225 Difference]: With dead ends: 10563 [2019-10-13 22:18:44,768 INFO L226 Difference]: Without dead ends: 5337 [2019-10-13 22:18:44,797 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:44,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2019-10-13 22:18:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 5321. [2019-10-13 22:18:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5321 states. [2019-10-13 22:18:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 7248 transitions. [2019-10-13 22:18:45,105 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 7248 transitions. Word has length 235 [2019-10-13 22:18:45,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:45,108 INFO L462 AbstractCegarLoop]: Abstraction has 5321 states and 7248 transitions. [2019-10-13 22:18:45,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:18:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 7248 transitions. [2019-10-13 22:18:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 22:18:45,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:45,134 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:45,134 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:45,135 INFO L82 PathProgramCache]: Analyzing trace with hash -447867332, now seen corresponding path program 2 times [2019-10-13 22:18:45,135 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:45,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551362665] [2019-10-13 22:18:45,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:45,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:45,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-10-13 22:18:45,411 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551362665] [2019-10-13 22:18:45,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:45,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:18:45,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439574987] [2019-10-13 22:18:45,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:18:45,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:45,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:18:45,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:45,414 INFO L87 Difference]: Start difference. First operand 5321 states and 7248 transitions. Second operand 3 states. [2019-10-13 22:18:46,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:46,270 INFO L93 Difference]: Finished difference Result 13535 states and 18473 transitions. [2019-10-13 22:18:46,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:18:46,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-13 22:18:46,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:46,361 INFO L225 Difference]: With dead ends: 13535 [2019-10-13 22:18:46,361 INFO L226 Difference]: Without dead ends: 8257 [2019-10-13 22:18:46,390 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:46,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8257 states. [2019-10-13 22:18:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8257 to 8219. [2019-10-13 22:18:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8219 states. [2019-10-13 22:18:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8219 states to 8219 states and 11136 transitions. [2019-10-13 22:18:46,841 INFO L78 Accepts]: Start accepts. Automaton has 8219 states and 11136 transitions. Word has length 238 [2019-10-13 22:18:46,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:46,841 INFO L462 AbstractCegarLoop]: Abstraction has 8219 states and 11136 transitions. [2019-10-13 22:18:46,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:18:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 8219 states and 11136 transitions. [2019-10-13 22:18:46,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 22:18:46,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:46,871 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:46,871 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:46,871 INFO L82 PathProgramCache]: Analyzing trace with hash -939376904, now seen corresponding path program 2 times [2019-10-13 22:18:46,872 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:46,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903583631] [2019-10-13 22:18:46,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:46,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:46,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:47,117 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-10-13 22:18:47,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903583631] [2019-10-13 22:18:47,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:47,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:18:47,119 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791856170] [2019-10-13 22:18:47,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:18:47,120 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:47,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:18:47,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:47,121 INFO L87 Difference]: Start difference. First operand 8219 states and 11136 transitions. Second operand 3 states. [2019-10-13 22:18:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:48,325 INFO L93 Difference]: Finished difference Result 20565 states and 27937 transitions. [2019-10-13 22:18:48,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:18:48,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-13 22:18:48,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:48,385 INFO L225 Difference]: With dead ends: 20565 [2019-10-13 22:18:48,386 INFO L226 Difference]: Without dead ends: 12389 [2019-10-13 22:18:48,413 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:18:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12389 states. [2019-10-13 22:18:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12389 to 12373. [2019-10-13 22:18:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12373 states. [2019-10-13 22:18:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12373 states to 12373 states and 16682 transitions. [2019-10-13 22:18:48,933 INFO L78 Accepts]: Start accepts. Automaton has 12373 states and 16682 transitions. Word has length 235 [2019-10-13 22:18:48,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:48,934 INFO L462 AbstractCegarLoop]: Abstraction has 12373 states and 16682 transitions. [2019-10-13 22:18:48,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:18:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 12373 states and 16682 transitions. [2019-10-13 22:18:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 22:18:48,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:48,973 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:48,973 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:48,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:48,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1177126912, now seen corresponding path program 1 times [2019-10-13 22:18:48,974 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:48,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145556174] [2019-10-13 22:18:48,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:48,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:48,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-10-13 22:18:49,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145556174] [2019-10-13 22:18:49,221 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:49,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:18:49,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201199580] [2019-10-13 22:18:49,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:18:49,229 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:49,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:18:49,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:18:49,229 INFO L87 Difference]: Start difference. First operand 12373 states and 16682 transitions. Second operand 5 states. [2019-10-13 22:18:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:49,692 INFO L93 Difference]: Finished difference Result 24801 states and 33809 transitions. [2019-10-13 22:18:49,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:18:49,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2019-10-13 22:18:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:49,770 INFO L225 Difference]: With dead ends: 24801 [2019-10-13 22:18:49,770 INFO L226 Difference]: Without dead ends: 12471 [2019-10-13 22:18:49,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:18:49,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12471 states. [2019-10-13 22:18:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12471 to 12453. [2019-10-13 22:18:50,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12453 states. [2019-10-13 22:18:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12453 states to 12453 states and 16770 transitions. [2019-10-13 22:18:50,342 INFO L78 Accepts]: Start accepts. Automaton has 12453 states and 16770 transitions. Word has length 235 [2019-10-13 22:18:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:50,343 INFO L462 AbstractCegarLoop]: Abstraction has 12453 states and 16770 transitions. [2019-10-13 22:18:50,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:18:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 12453 states and 16770 transitions. [2019-10-13 22:18:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 22:18:50,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:50,386 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:50,386 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:50,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:50,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1904772496, now seen corresponding path program 1 times [2019-10-13 22:18:50,387 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:50,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887673929] [2019-10-13 22:18:50,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:50,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:50,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-10-13 22:18:51,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887673929] [2019-10-13 22:18:51,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:18:51,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 22:18:51,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515373880] [2019-10-13 22:18:51,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 22:18:51,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:18:51,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 22:18:51,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 22:18:51,170 INFO L87 Difference]: Start difference. First operand 12453 states and 16770 transitions. Second operand 11 states. [2019-10-13 22:18:51,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:18:51,983 INFO L93 Difference]: Finished difference Result 25601 states and 35049 transitions. [2019-10-13 22:18:51,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 22:18:51,984 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2019-10-13 22:18:51,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:18:52,050 INFO L225 Difference]: With dead ends: 25601 [2019-10-13 22:18:52,050 INFO L226 Difference]: Without dead ends: 13191 [2019-10-13 22:18:52,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-13 22:18:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13191 states. [2019-10-13 22:18:52,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13191 to 12533. [2019-10-13 22:18:52,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12533 states. [2019-10-13 22:18:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12533 states to 12533 states and 16834 transitions. [2019-10-13 22:18:52,661 INFO L78 Accepts]: Start accepts. Automaton has 12533 states and 16834 transitions. Word has length 239 [2019-10-13 22:18:52,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:18:52,663 INFO L462 AbstractCegarLoop]: Abstraction has 12533 states and 16834 transitions. [2019-10-13 22:18:52,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 22:18:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 12533 states and 16834 transitions. [2019-10-13 22:18:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-13 22:18:52,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:18:52,701 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:18:52,702 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:18:52,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:18:52,702 INFO L82 PathProgramCache]: Analyzing trace with hash -208230911, now seen corresponding path program 1 times [2019-10-13 22:18:52,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:18:52,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823015482] [2019-10-13 22:18:52,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:52,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:18:52,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:18:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2019-10-13 22:18:53,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823015482] [2019-10-13 22:18:53,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302560450] [2019-10-13 22:18:53,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:18:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:18:54,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 22:18:54,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:18:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-10-13 22:18:54,356 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:18:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2019-10-13 22:18:55,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1786306340] [2019-10-13 22:18:55,064 INFO L162 IcfgInterpreter]: Started Sifa with 217 locations of interest [2019-10-13 22:18:55,064 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:18:55,073 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:18:55,083 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:18:55,084 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs