/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 13:27:27,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 13:27:27,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 13:27:27,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 13:27:27,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 13:27:27,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 13:27:27,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 13:27:27,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 13:27:27,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 13:27:27,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 13:27:27,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 13:27:27,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 13:27:27,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 13:27:27,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 13:27:27,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 13:27:27,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 13:27:27,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 13:27:27,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 13:27:27,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 13:27:27,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 13:27:27,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 13:27:27,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 13:27:27,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 13:27:27,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 13:27:27,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 13:27:27,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 13:27:27,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 13:27:27,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 13:27:27,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 13:27:27,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 13:27:27,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 13:27:27,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 13:27:27,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 13:27:27,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 13:27:27,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 13:27:27,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 13:27:27,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 13:27:27,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 13:27:27,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 13:27:27,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 13:27:27,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 13:27:27,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-18 13:27:27,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 13:27:27,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 13:27:27,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 13:27:27,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 13:27:27,985 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 13:27:27,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 13:27:27,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 13:27:27,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 13:27:27,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 13:27:27,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 13:27:27,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 13:27:27,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 13:27:27,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 13:27:27,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 13:27:27,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 13:27:27,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 13:27:27,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 13:27:27,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 13:27:27,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 13:27:27,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 13:27:27,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 13:27:27,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 13:27:27,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 13:27:27,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 13:27:27,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 13:27:27,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 13:27:27,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 13:27:27,990 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 13:27:28,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 13:27:28,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 13:27:28,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 13:27:28,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 13:27:28,347 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 13:27:28,348 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 13:27:28,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f557d7e/4d85c4af9e6943709bb1a71e2318e149/FLAG7e20bb7a9 [2020-08-18 13:27:29,208 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 13:27:29,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 13:27:29,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f557d7e/4d85c4af9e6943709bb1a71e2318e149/FLAG7e20bb7a9 [2020-08-18 13:27:29,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f8f557d7e/4d85c4af9e6943709bb1a71e2318e149 [2020-08-18 13:27:29,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 13:27:29,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 13:27:29,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 13:27:29,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 13:27:29,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 13:27:29,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:27:29" (1/1) ... [2020-08-18 13:27:29,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5977a580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:29, skipping insertion in model container [2020-08-18 13:27:29,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:27:29" (1/1) ... [2020-08-18 13:27:29,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 13:27:29,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 13:27:31,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:27:31,714 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 13:27:32,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:27:32,376 INFO L208 MainTranslator]: Completed translation [2020-08-18 13:27:32,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32 WrapperNode [2020-08-18 13:27:32,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 13:27:32,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 13:27:32,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 13:27:32,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 13:27:32,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... [2020-08-18 13:27:32,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 13:27:32,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 13:27:32,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 13:27:32,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 13:27:32,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 13:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 13:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 13:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-18 13:27:32,697 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-18 13:27:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-18 13:27:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 13:27:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 13:27:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 13:27:32,698 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 13:27:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 13:27:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-18 13:27:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 13:27:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-18 13:27:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-18 13:27:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-18 13:27:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 13:27:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 13:27:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 13:27:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-18 13:27:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 13:27:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-18 13:27:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-18 13:27:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-18 13:27:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-18 13:27:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-18 13:27:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-18 13:27:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-18 13:27:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-18 13:27:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-18 13:27:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-18 13:27:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-18 13:27:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-18 13:27:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-18 13:27:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-18 13:27:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-18 13:27:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-18 13:27:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-18 13:27:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-18 13:27:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 13:27:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-18 13:27:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 13:27:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-18 13:27:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 13:27:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 13:27:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-18 13:27:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 13:27:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 13:27:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 13:27:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-18 13:27:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-18 13:27:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 13:27:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-18 13:27:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 13:27:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 13:27:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-18 13:27:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-18 13:27:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-18 13:27:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-18 13:27:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-18 13:27:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-18 13:27:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-18 13:27:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-18 13:27:32,738 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-18 13:27:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-18 13:27:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-18 13:27:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-18 13:27:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-18 13:27:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-18 13:27:32,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-18 13:27:33,516 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 13:27:35,030 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 13:27:35,031 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 13:27:35,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:27:35 BoogieIcfgContainer [2020-08-18 13:27:35,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 13:27:35,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 13:27:35,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 13:27:35,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 13:27:35,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 01:27:29" (1/3) ... [2020-08-18 13:27:35,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd192da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:27:35, skipping insertion in model container [2020-08-18 13:27:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:27:32" (2/3) ... [2020-08-18 13:27:35,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd192da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:27:35, skipping insertion in model container [2020-08-18 13:27:35,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:27:35" (3/3) ... [2020-08-18 13:27:35,054 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 13:27:35,066 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 13:27:35,077 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 13:27:35,093 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 13:27:35,130 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 13:27:35,131 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 13:27:35,131 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 13:27:35,131 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 13:27:35,131 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 13:27:35,131 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 13:27:35,131 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 13:27:35,131 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 13:27:35,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-18 13:27:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 13:27:35,187 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:27:35,189 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:27:35,189 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:27:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:27:35,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-18 13:27:35,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:27:35,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525181010] [2020-08-18 13:27:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:27:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:35,989 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:27:35,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:27:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:27:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:27:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:27:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:27:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 13:27:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 13:27:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 13:27:36,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525181010] [2020-08-18 13:27:36,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:27:36,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 13:27:36,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290564749] [2020-08-18 13:27:36,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 13:27:36,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:27:36,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 13:27:36,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 13:27:36,261 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-18 13:27:36,445 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:27:37,205 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 13:27:37,411 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 13:27:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:27:44,638 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-18 13:27:44,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 13:27:44,640 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-18 13:27:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:27:44,671 INFO L225 Difference]: With dead ends: 1795 [2020-08-18 13:27:44,671 INFO L226 Difference]: Without dead ends: 957 [2020-08-18 13:27:44,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-08-18 13:27:44,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-18 13:27:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-18 13:27:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-18 13:27:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-18 13:27:44,879 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-18 13:27:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:27:44,880 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-18 13:27:44,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 13:27:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-18 13:27:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 13:27:44,885 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:27:44,886 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:27:44,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 13:27:44,886 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:27:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:27:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-18 13:27:44,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:27:44,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598800115] [2020-08-18 13:27:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:27:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,194 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:27:45,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:27:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:27:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:27:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:27:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:27:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 13:27:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 13:27:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 13:27:45,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598800115] [2020-08-18 13:27:45,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 13:27:45,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 13:27:45,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385160407] [2020-08-18 13:27:45,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 13:27:45,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:27:45,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 13:27:45,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 13:27:45,382 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-18 13:27:45,543 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:27:46,159 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 13:27:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:27:52,252 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-18 13:27:52,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 13:27:52,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-18 13:27:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:27:52,261 INFO L225 Difference]: With dead ends: 1743 [2020-08-18 13:27:52,262 INFO L226 Difference]: Without dead ends: 958 [2020-08-18 13:27:52,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-08-18 13:27:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-18 13:27:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-18 13:27:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-18 13:27:52,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-18 13:27:52,377 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-18 13:27:52,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:27:52,378 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-18 13:27:52,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 13:27:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-18 13:27:52,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 13:27:52,381 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:27:52,381 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-08-18 13:27:52,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 13:27:52,382 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:27:52,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:27:52,382 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-18 13:27:52,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:27:52,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090518578] [2020-08-18 13:27:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:27:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,612 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:27:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:27:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:27:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:27:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:27:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:27:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 13:27:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:27:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:27:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:27:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 13:27:52,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090518578] [2020-08-18 13:27:52,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 13:27:52,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 13:27:52,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551953105] [2020-08-18 13:27:52,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:27:52,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:27:52,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:27:52,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:27:52,950 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-18 13:27:53,181 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:27:53,823 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 13:28:00,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:28:00,941 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-18 13:28:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 13:28:00,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-18 13:28:00,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:28:00,949 INFO L225 Difference]: With dead ends: 1744 [2020-08-18 13:28:00,949 INFO L226 Difference]: Without dead ends: 959 [2020-08-18 13:28:00,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-08-18 13:28:00,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-18 13:28:01,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-18 13:28:01,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-18 13:28:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-18 13:28:01,058 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-18 13:28:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:28:01,059 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-18 13:28:01,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 13:28:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-18 13:28:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 13:28:01,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:28:01,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:28:01,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 13:28:01,062 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:28:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:28:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-18 13:28:01,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:28:01,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802013270] [2020-08-18 13:28:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:28:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,366 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:28:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:28:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:28:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:28:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:28:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:28:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:28:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 13:28:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 13:28:01,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802013270] [2020-08-18 13:28:01,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 13:28:01,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 13:28:01,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162452567] [2020-08-18 13:28:01,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 13:28:01,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:28:01,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 13:28:01,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 13:28:01,550 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-18 13:28:01,717 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:28:02,370 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 13:28:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:28:09,512 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-18 13:28:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 13:28:09,513 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-18 13:28:09,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:28:09,521 INFO L225 Difference]: With dead ends: 1745 [2020-08-18 13:28:09,522 INFO L226 Difference]: Without dead ends: 960 [2020-08-18 13:28:09,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-08-18 13:28:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-18 13:28:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-18 13:28:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-18 13:28:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-18 13:28:09,655 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-18 13:28:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:28:09,656 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-18 13:28:09,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 13:28:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-18 13:28:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 13:28:09,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:28:09,658 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:28:09,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 13:28:09,659 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:28:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:28:09,659 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-18 13:28:09,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:28:09,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899179095] [2020-08-18 13:28:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:28:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,898 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:28:09,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:28:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:28:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:28:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:28:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:28:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:10,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 13:28:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:10,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 13:28:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 13:28:10,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899179095] [2020-08-18 13:28:10,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:28:10,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 13:28:10,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103922285] [2020-08-18 13:28:10,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 13:28:10,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:28:10,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 13:28:10,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 13:28:10,033 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-18 13:28:10,195 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:28:10,854 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 13:28:15,391 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 13:28:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:28:23,189 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-18 13:28:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 13:28:23,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 13:28:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:28:23,201 INFO L225 Difference]: With dead ends: 2626 [2020-08-18 13:28:23,202 INFO L226 Difference]: Without dead ends: 1844 [2020-08-18 13:28:23,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-08-18 13:28:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-18 13:28:23,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-18 13:28:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-18 13:28:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-18 13:28:23,392 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-18 13:28:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:28:23,392 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-18 13:28:23,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 13:28:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-18 13:28:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 13:28:23,395 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:28:23,395 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 13:28:23,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 13:28:23,395 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:28:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:28:23,396 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-18 13:28:23,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:28:23,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [74087012] [2020-08-18 13:28:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:28:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,684 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 13:28:23,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:28:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:28:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 13:28:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 13:28:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:28:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 13:28:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 13:28:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:28:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 13:28:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:28:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 13:28:23,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [74087012] [2020-08-18 13:28:23,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:28:23,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:28:23,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185229359] [2020-08-18 13:28:23,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:28:23,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:28:23,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:28:23,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:28:23,854 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states. [2020-08-18 13:28:24,014 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 13:28:24,323 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 13:28:24,585 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 156