/usr/bin/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-fb55353 [2019-11-07 02:47:47,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 02:47:47,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 02:47:47,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 02:47:47,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 02:47:47,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 02:47:47,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 02:47:47,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 02:47:47,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 02:47:47,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 02:47:47,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 02:47:47,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 02:47:47,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 02:47:47,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 02:47:47,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 02:47:47,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 02:47:47,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 02:47:47,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 02:47:47,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 02:47:47,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 02:47:47,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 02:47:47,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 02:47:47,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 02:47:47,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 02:47:47,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 02:47:47,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 02:47:47,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 02:47:47,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 02:47:47,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 02:47:47,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 02:47:47,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 02:47:47,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 02:47:47,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 02:47:47,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 02:47:47,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 02:47:47,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 02:47:47,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 02:47:47,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 02:47:47,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 02:47:47,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 02:47:47,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 02:47:47,658 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 [2019-11-07 02:47:47,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 02:47:47,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 02:47:47,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 02:47:47,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 02:47:47,681 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 02:47:47,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 02:47:47,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 02:47:47,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 02:47:47,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 02:47:47,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 02:47:47,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 02:47:47,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 02:47:47,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 02:47:47,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 02:47:47,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 02:47:47,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 02:47:47,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 02:47:47,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 02:47:47,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 02:47:47,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 02:47:47,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 02:47:47,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 02:47:47,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 02:47:47,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 02:47:47,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 02:47:47,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 02:47:47,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 02:47:47,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 02:47:47,687 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 [2019-11-07 02:47:47,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 02:47:47,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 02:47:47,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 02:47:47,992 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 02:47:47,992 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 02:47:47,993 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i [2019-11-07 02:47:48,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4856faf93/a296fb55b67b40c2a54ed72efd55dde4/FLAG9d61324da [2019-11-07 02:47:48,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 02:47:48,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--8390--8390.ko-entry_point.cil.out.i [2019-11-07 02:47:48,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4856faf93/a296fb55b67b40c2a54ed72efd55dde4/FLAG9d61324da [2019-11-07 02:47:49,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4856faf93/a296fb55b67b40c2a54ed72efd55dde4 [2019-11-07 02:47:49,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 02:47:49,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 02:47:49,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 02:47:49,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 02:47:49,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 02:47:49,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:47:49" (1/1) ... [2019-11-07 02:47:49,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382268c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:49, skipping insertion in model container [2019-11-07 02:47:49,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:47:49" (1/1) ... [2019-11-07 02:47:49,442 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 02:47:49,657 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 02:47:51,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:47:51,595 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 02:47:52,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:47:52,332 INFO L192 MainTranslator]: Completed translation [2019-11-07 02:47:52,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52 WrapperNode [2019-11-07 02:47:52,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 02:47:52,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 02:47:52,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 02:47:52,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 02:47:52,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (1/1) ... [2019-11-07 02:47:52,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 02:47:52,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 02:47:52,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 02:47:52,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 02:47:52,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (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 [2019-11-07 02:47:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 02:47:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 02:47:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 02:47:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-07 02:47:52,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-11-07 02:47:52,677 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-11-07 02:47:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-11-07 02:47:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-11-07 02:47:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-11-07 02:47:52,679 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2019-11-07 02:47:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2019-11-07 02:47:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2019-11-07 02:47:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2019-11-07 02:47:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2019-11-07 02:47:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2019-11-07 02:47:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-07 02:47:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-11-07 02:47:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-11-07 02:47:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-11-07 02:47:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-11-07 02:47:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-11-07 02:47:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2019-11-07 02:47:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-11-07 02:47:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_tx_timestamp [2019-11-07 02:47:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 02:47:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 02:47:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 02:47:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 02:47:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-07 02:47:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync_lockdep [2019-11-07 02:47:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync_lockdep_irqsave [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_lockdep_irqrestore [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-11-07 02:47:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2019-11-07 02:47:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_open [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_close [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_tx_timeout [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_start_xmit [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_interrupt [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_poll [2019-11-07 02:47:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_err [2019-11-07 02:47:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_intr [2019-11-07 02:47:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_receive [2019-11-07 02:47:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_rx_overrun [2019-11-07 02:47:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_get_stats [2019-11-07 02:47:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure make_mc_bits [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure do_set_multicast_list [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __ei_set_multicast_list [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ethdev_setup [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ____alloc_ei_netdev [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __NS8390_init [2019-11-07 02:47:52,697 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_trigger_send [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_open [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_close [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_start_xmit [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_get_stats [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_set_multicast_list [2019-11-07 02:47:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_timeout [2019-11-07 02:47:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_interrupt [2019-11-07 02:47:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_poll [2019-11-07 02:47:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_ei_netdev [2019-11-07 02:47:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_init [2019-11-07 02:47:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ns8390_module_init [2019-11-07 02:47:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ns8390_module_exit [2019-11-07 02:47:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_1 [2019-11-07 02:47:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2019-11-07 02:47:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-11-07 02:47:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-11-07 02:47:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-11-07 02:47:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2019-11-07 02:47:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-11-07 02:47:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-11-07 02:47:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2019-11-07 02:47:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2019-11-07 02:47:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-11-07 02:47:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2019-11-07 02:47:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2019-11-07 02:47:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2019-11-07 02:47:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2019-11-07 02:47:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2019-11-07 02:47:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2019-11-07 02:47:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_1 [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_1 [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2019-11-07 02:47:52,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2019-11-07 02:47:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2019-11-07 02:47:52,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2019-11-07 02:47:52,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-07 02:47:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone_tx_timestamp [2019-11-07 02:47:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_defer_rx_timestamp [2019-11-07 02:47:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-11-07 02:47:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tstamp_tx [2019-11-07 02:47:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2019-11-07 02:47:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2019-11-07 02:47:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-11-07 02:47:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 02:47:52,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 02:47:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 02:47:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 02:47:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-07 02:47:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 02:47:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 02:47:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-11-07 02:47:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-11-07 02:47:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-11-07 02:47:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-11-07 02:47:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 02:47:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-07 02:47:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2019-11-07 02:47:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-11-07 02:47:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-11-07 02:47:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-07 02:47:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-11-07 02:47:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-11-07 02:47:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-11-07 02:47:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-11-07 02:47:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone_tx_timestamp [2019-11-07 02:47:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_defer_rx_timestamp [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tstamp_tx [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure sw_tx_timestamp [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-11-07 02:47:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 02:47:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 02:47:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_1 [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync_lockdep [2019-11-07 02:47:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync_lockdep_irqsave [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_lockdep_irqrestore [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-11-07 02:47:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-11-07 02:47:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2019-11-07 02:47:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ei_poll [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_init [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ei_open [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ei_close [2019-11-07 02:47:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ei_interrupt [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_timeout [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_start_xmit [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_set_multicast_list [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_get_stats [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_ei_netdev [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_intr [2019-11-07 02:47:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_err [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure ei_receive [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure ei_rx_overrun [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_trigger_send [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure do_set_multicast_list [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __NS8390_init [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_open [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_close [2019-11-07 02:47:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_tx_timeout [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_start_xmit [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2019-11-07 02:47:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_interrupt [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_poll [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_get_stats [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure make_mc_bits [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ei_set_multicast_list [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ethdev_setup [2019-11-07 02:47:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure ____alloc_ei_netdev [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ns8390_module_init [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ns8390_module_exit [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_1 [2019-11-07 02:47:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_1 [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-11-07 02:47:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 02:47:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 02:47:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-07 02:47:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-07 02:47:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-07 02:47:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-07 02:47:53,862 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 02:48:04,459 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 02:48:04,460 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 02:48:04,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:48:04 BoogieIcfgContainer [2019-11-07 02:48:04,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 02:48:04,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 02:48:04,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 02:48:04,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 02:48:04,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:47:49" (1/3) ... [2019-11-07 02:48:04,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25badc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:48:04, skipping insertion in model container [2019-11-07 02:48:04,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:47:52" (2/3) ... [2019-11-07 02:48:04,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25badc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:48:04, skipping insertion in model container [2019-11-07 02:48:04,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:48:04" (3/3) ... [2019-11-07 02:48:04,474 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 [2019-11-07 02:48:04,484 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 02:48:04,498 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 02:48:04,510 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 02:48:04,547 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 02:48:04,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 02:48:04,547 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 02:48:04,547 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 02:48:04,549 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 02:48:04,549 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 02:48:04,549 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 02:48:04,549 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 02:48:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states. [2019-11-07 02:48:04,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-11-07 02:48:04,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:04,620 INFO L410 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] [2019-11-07 02:48:04,622 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:04,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash -736389471, now seen corresponding path program 1 times [2019-11-07 02:48:04,636 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:04,636 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482501959] [2019-11-07 02:48:04,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 02:48:05,493 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482501959] [2019-11-07 02:48:05,494 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:05,495 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:48:05,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739176220] [2019-11-07 02:48:05,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:48:05,503 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:05,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:48:05,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:48:05,524 INFO L87 Difference]: Start difference. First operand 1018 states. Second operand 3 states. [2019-11-07 02:48:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:07,391 INFO L93 Difference]: Finished difference Result 2891 states and 4033 transitions. [2019-11-07 02:48:07,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:48:07,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2019-11-07 02:48:07,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:07,441 INFO L225 Difference]: With dead ends: 2891 [2019-11-07 02:48:07,441 INFO L226 Difference]: Without dead ends: 1897 [2019-11-07 02:48:07,458 INFO L630 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 [2019-11-07 02:48:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2019-11-07 02:48:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2019-11-07 02:48:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2019-11-07 02:48:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2595 transitions. [2019-11-07 02:48:07,739 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2595 transitions. Word has length 55 [2019-11-07 02:48:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:07,741 INFO L462 AbstractCegarLoop]: Abstraction has 1897 states and 2595 transitions. [2019-11-07 02:48:07,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:48:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2595 transitions. [2019-11-07 02:48:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-07 02:48:07,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:07,755 INFO L410 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] [2019-11-07 02:48:07,755 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:07,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:07,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1179551353, now seen corresponding path program 1 times [2019-11-07 02:48:07,756 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:07,757 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015143354] [2019-11-07 02:48:07,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:08,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 02:48:08,042 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015143354] [2019-11-07 02:48:08,042 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:08,042 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 02:48:08,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103019841] [2019-11-07 02:48:08,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 02:48:08,045 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:08,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 02:48:08,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 02:48:08,045 INFO L87 Difference]: Start difference. First operand 1897 states and 2595 transitions. Second operand 5 states. [2019-11-07 02:48:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:08,306 INFO L93 Difference]: Finished difference Result 3774 states and 5166 transitions. [2019-11-07 02:48:08,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 02:48:08,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-11-07 02:48:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:08,322 INFO L225 Difference]: With dead ends: 3774 [2019-11-07 02:48:08,322 INFO L226 Difference]: Without dead ends: 1897 [2019-11-07 02:48:08,334 INFO L630 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 [2019-11-07 02:48:08,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2019-11-07 02:48:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1897. [2019-11-07 02:48:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2019-11-07 02:48:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2593 transitions. [2019-11-07 02:48:08,482 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2593 transitions. Word has length 57 [2019-11-07 02:48:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:08,484 INFO L462 AbstractCegarLoop]: Abstraction has 1897 states and 2593 transitions. [2019-11-07 02:48:08,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 02:48:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2593 transitions. [2019-11-07 02:48:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-07 02:48:08,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:08,494 INFO L410 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] [2019-11-07 02:48:08,494 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:08,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1930071232, now seen corresponding path program 1 times [2019-11-07 02:48:08,495 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:08,495 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9212845] [2019-11-07 02:48:08,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-11-07 02:48:08,856 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9212845] [2019-11-07 02:48:08,857 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:08,857 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 02:48:08,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263136217] [2019-11-07 02:48:08,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 02:48:08,858 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 02:48:08,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 02:48:08,859 INFO L87 Difference]: Start difference. First operand 1897 states and 2593 transitions. Second operand 6 states. [2019-11-07 02:48:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:11,490 INFO L93 Difference]: Finished difference Result 3782 states and 5220 transitions. [2019-11-07 02:48:11,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 02:48:11,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-11-07 02:48:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:11,542 INFO L225 Difference]: With dead ends: 3782 [2019-11-07 02:48:11,542 INFO L226 Difference]: Without dead ends: 3768 [2019-11-07 02:48:11,546 INFO L630 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 [2019-11-07 02:48:11,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2019-11-07 02:48:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3768. [2019-11-07 02:48:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3768 states. [2019-11-07 02:48:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5206 transitions. [2019-11-07 02:48:11,880 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5206 transitions. Word has length 87 [2019-11-07 02:48:11,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:11,881 INFO L462 AbstractCegarLoop]: Abstraction has 3768 states and 5206 transitions. [2019-11-07 02:48:11,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 02:48:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5206 transitions. [2019-11-07 02:48:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-07 02:48:11,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:11,914 INFO L410 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] [2019-11-07 02:48:11,915 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:11,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1315456422, now seen corresponding path program 1 times [2019-11-07 02:48:11,915 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:11,917 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854883851] [2019-11-07 02:48:11,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-07 02:48:12,355 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854883851] [2019-11-07 02:48:12,356 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:12,356 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:48:12,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671722221] [2019-11-07 02:48:12,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:48:12,358 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:12,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:48:12,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:48:12,359 INFO L87 Difference]: Start difference. First operand 3768 states and 5206 transitions. Second operand 3 states. [2019-11-07 02:48:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:12,846 INFO L93 Difference]: Finished difference Result 9020 states and 12357 transitions. [2019-11-07 02:48:12,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:48:12,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-11-07 02:48:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:12,901 INFO L225 Difference]: With dead ends: 9020 [2019-11-07 02:48:12,902 INFO L226 Difference]: Without dead ends: 5272 [2019-11-07 02:48:12,925 INFO L630 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 [2019-11-07 02:48:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2019-11-07 02:48:13,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 5246. [2019-11-07 02:48:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5246 states. [2019-11-07 02:48:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 7146 transitions. [2019-11-07 02:48:13,358 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 7146 transitions. Word has length 238 [2019-11-07 02:48:13,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:13,360 INFO L462 AbstractCegarLoop]: Abstraction has 5246 states and 7146 transitions. [2019-11-07 02:48:13,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:48:13,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 7146 transitions. [2019-11-07 02:48:13,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-11-07 02:48:13,400 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:13,400 INFO L410 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] [2019-11-07 02:48:13,400 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:13,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:13,401 INFO L82 PathProgramCache]: Analyzing trace with hash 851825784, now seen corresponding path program 1 times [2019-11-07 02:48:13,401 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:13,401 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487389124] [2019-11-07 02:48:13,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-07 02:48:13,818 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487389124] [2019-11-07 02:48:13,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:13,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:48:13,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955723285] [2019-11-07 02:48:13,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:48:13,820 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:13,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:48:13,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:48:13,820 INFO L87 Difference]: Start difference. First operand 5246 states and 7146 transitions. Second operand 3 states. [2019-11-07 02:48:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:14,256 INFO L93 Difference]: Finished difference Result 10563 states and 14390 transitions. [2019-11-07 02:48:14,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:48:14,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-11-07 02:48:14,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:14,297 INFO L225 Difference]: With dead ends: 10563 [2019-11-07 02:48:14,297 INFO L226 Difference]: Without dead ends: 5337 [2019-11-07 02:48:14,320 INFO L630 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 [2019-11-07 02:48:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2019-11-07 02:48:14,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 5321. [2019-11-07 02:48:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5321 states. [2019-11-07 02:48:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 7248 transitions. [2019-11-07 02:48:14,738 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 7248 transitions. Word has length 235 [2019-11-07 02:48:14,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:14,739 INFO L462 AbstractCegarLoop]: Abstraction has 5321 states and 7248 transitions. [2019-11-07 02:48:14,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:48:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 7248 transitions. [2019-11-07 02:48:14,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-11-07 02:48:14,770 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:14,770 INFO L410 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] [2019-11-07 02:48:14,771 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:14,772 INFO L82 PathProgramCache]: Analyzing trace with hash -939376904, now seen corresponding path program 2 times [2019-11-07 02:48:14,772 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:14,772 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689978989] [2019-11-07 02:48:14,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-11-07 02:48:15,152 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689978989] [2019-11-07 02:48:15,153 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:15,153 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:48:15,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024050607] [2019-11-07 02:48:15,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:48:15,154 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:15,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:48:15,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:48:15,155 INFO L87 Difference]: Start difference. First operand 5321 states and 7248 transitions. Second operand 3 states. [2019-11-07 02:48:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:16,886 INFO L93 Difference]: Finished difference Result 13535 states and 18475 transitions. [2019-11-07 02:48:16,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:48:16,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-11-07 02:48:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:16,951 INFO L225 Difference]: With dead ends: 13535 [2019-11-07 02:48:16,951 INFO L226 Difference]: Without dead ends: 8257 [2019-11-07 02:48:16,981 INFO L630 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 [2019-11-07 02:48:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8257 states. [2019-11-07 02:48:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8257 to 8241. [2019-11-07 02:48:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8241 states. [2019-11-07 02:48:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 11160 transitions. [2019-11-07 02:48:17,519 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 11160 transitions. Word has length 235 [2019-11-07 02:48:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:17,520 INFO L462 AbstractCegarLoop]: Abstraction has 8241 states and 11160 transitions. [2019-11-07 02:48:17,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:48:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 11160 transitions. [2019-11-07 02:48:17,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-07 02:48:17,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:17,548 INFO L410 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] [2019-11-07 02:48:17,549 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:17,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:17,549 INFO L82 PathProgramCache]: Analyzing trace with hash -447867332, now seen corresponding path program 2 times [2019-11-07 02:48:17,549 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:17,550 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60626677] [2019-11-07 02:48:17,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-11-07 02:48:17,981 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60626677] [2019-11-07 02:48:17,981 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:17,981 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:48:17,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829071443] [2019-11-07 02:48:17,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:48:17,982 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:17,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:48:17,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:48:17,983 INFO L87 Difference]: Start difference. First operand 8241 states and 11160 transitions. Second operand 3 states. [2019-11-07 02:48:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:19,349 INFO L93 Difference]: Finished difference Result 20621 states and 27995 transitions. [2019-11-07 02:48:19,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:48:19,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-11-07 02:48:19,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:19,442 INFO L225 Difference]: With dead ends: 20621 [2019-11-07 02:48:19,443 INFO L226 Difference]: Without dead ends: 12423 [2019-11-07 02:48:19,486 INFO L630 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 [2019-11-07 02:48:19,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12423 states. [2019-11-07 02:48:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12423 to 12373. [2019-11-07 02:48:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12373 states. [2019-11-07 02:48:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12373 states to 12373 states and 16682 transitions. [2019-11-07 02:48:20,115 INFO L78 Accepts]: Start accepts. Automaton has 12373 states and 16682 transitions. Word has length 238 [2019-11-07 02:48:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:48:20,116 INFO L462 AbstractCegarLoop]: Abstraction has 12373 states and 16682 transitions. [2019-11-07 02:48:20,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:48:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 12373 states and 16682 transitions. [2019-11-07 02:48:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-07 02:48:20,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:48:20,152 INFO L410 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] [2019-11-07 02:48:20,152 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:48:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:48:20,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1173015620, now seen corresponding path program 1 times [2019-11-07 02:48:20,153 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:48:20,153 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777369472] [2019-11-07 02:48:20,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:48:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:48:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-11-07 02:48:20,668 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777369472] [2019-11-07 02:48:20,669 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:48:20,669 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 02:48:20,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340719412] [2019-11-07 02:48:20,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 02:48:20,670 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:48:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 02:48:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 02:48:20,671 INFO L87 Difference]: Start difference. First operand 12373 states and 16682 transitions. Second operand 5 states. [2019-11-07 02:48:21,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:48:21,037 INFO L93 Difference]: Finished difference Result 24801 states and 33809 transitions. [2019-11-07 02:48:21,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 02:48:21,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2019-11-07 02:48:21,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:48:21,101 INFO L225 Difference]: With dead ends: 24801 [2019-11-07 02:48:21,102 INFO L226 Difference]: Without dead ends: 12471 [2019-11-07 02:48:21,154 INFO L630 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 [2019-11-07 02:48:21,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12471 states.