/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 20:16:16,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 20:16:16,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 20:16:16,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 20:16:16,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 20:16:16,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 20:16:16,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 20:16:16,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 20:16:16,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 20:16:16,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 20:16:16,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 20:16:16,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 20:16:16,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 20:16:16,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 20:16:16,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 20:16:16,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 20:16:16,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 20:16:16,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 20:16:16,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 20:16:16,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 20:16:16,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 20:16:16,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 20:16:16,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 20:16:16,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 20:16:16,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 20:16:16,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 20:16:16,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 20:16:16,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 20:16:16,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 20:16:16,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 20:16:16,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 20:16:16,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 20:16:16,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 20:16:16,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 20:16:16,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 20:16:16,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 20:16:16,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 20:16:16,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 20:16:16,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 20:16:16,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 20:16:16,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 20:16:16,945 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 [2020-08-21 20:16:16,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 20:16:16,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 20:16:16,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 20:16:16,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 20:16:16,994 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 20:16:16,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 20:16:16,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 20:16:16,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 20:16:16,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 20:16:16,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 20:16:16,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 20:16:16,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 20:16:16,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 20:16:16,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 20:16:16,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 20:16:16,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 20:16:16,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 20:16:16,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 20:16:16,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:16:16,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 20:16:16,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 20:16:17,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 20:16:17,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 20:16:17,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 20:16:17,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 20:16:17,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 20:16:17,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 20:16:17,001 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=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 20:16:17,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 20:16:17,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 20:16:17,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 20:16:17,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 20:16:17,305 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 20:16:17,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-21 20:16:17,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d78a79c/139d2cd0ab474eb99488aa1842123cbe/FLAG9d9689c21 [2020-08-21 20:16:18,127 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 20:16:18,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-21 20:16:18,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d78a79c/139d2cd0ab474eb99488aa1842123cbe/FLAG9d9689c21 [2020-08-21 20:16:18,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28d78a79c/139d2cd0ab474eb99488aa1842123cbe [2020-08-21 20:16:18,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 20:16:18,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 20:16:18,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 20:16:18,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 20:16:18,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 20:16:18,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:16:18" (1/1) ... [2020-08-21 20:16:18,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d314089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:18, skipping insertion in model container [2020-08-21 20:16:18,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:16:18" (1/1) ... [2020-08-21 20:16:18,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 20:16:18,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 20:16:20,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:16:20,689 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 20:16:21,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:16:21,350 INFO L208 MainTranslator]: Completed translation [2020-08-21 20:16:21,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21 WrapperNode [2020-08-21 20:16:21,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 20:16:21,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 20:16:21,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 20:16:21,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 20:16:21,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (1/1) ... [2020-08-21 20:16:21,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 20:16:21,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 20:16:21,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 20:16:21,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 20:16:21,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (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 [2020-08-21 20:16:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 20:16:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 20:16:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-21 20:16:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-21 20:16:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-21 20:16:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-21 20:16:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-21 20:16:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-21 20:16:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-21 20:16:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-21 20:16:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-21 20:16:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-21 20:16:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-21 20:16:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-21 20:16:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-21 20:16:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-21 20:16:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-21 20:16:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-21 20:16:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-21 20:16:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-21 20:16:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-21 20:16:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-21 20:16:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-21 20:16:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-21 20:16:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-21 20:16:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-21 20:16:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-21 20:16:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-21 20:16:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-21 20:16:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-21 20:16:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 20:16:21,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 20:16:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-21 20:16:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-21 20:16:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-21 20:16:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-21 20:16:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-21 20:16:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-21 20:16:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-21 20:16:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-21 20:16:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-21 20:16:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-21 20:16:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-21 20:16:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-21 20:16:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-21 20:16:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-21 20:16:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-21 20:16:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-21 20:16:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 20:16:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-21 20:16:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-21 20:16:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-21 20:16:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-21 20:16:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-21 20:16:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-21 20:16:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-21 20:16:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-21 20:16:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-21 20:16:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-21 20:16:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-21 20:16:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-21 20:16:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-21 20:16:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 20:16:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-21 20:16:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 20:16:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-21 20:16:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 20:16:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-21 20:16:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-21 20:16:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-21 20:16:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-21 20:16:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-21 20:16:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-21 20:16:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-21 20:16:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-21 20:16:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-21 20:16:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 20:16:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 20:16:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 20:16:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-21 20:16:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-21 20:16:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-21 20:16:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-21 20:16:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-21 20:16:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-21 20:16:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-21 20:16:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-21 20:16:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-21 20:16:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-21 20:16:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 20:16:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-21 20:16:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 20:16:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 20:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-21 20:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-21 20:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-21 20:16:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-21 20:16:22,557 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 20:16:23,898 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 20:16:23,901 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 20:16:23,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:16:23 BoogieIcfgContainer [2020-08-21 20:16:23,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 20:16:23,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 20:16:23,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 20:16:23,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 20:16:23,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 08:16:18" (1/3) ... [2020-08-21 20:16:23,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:16:23, skipping insertion in model container [2020-08-21 20:16:23,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:21" (2/3) ... [2020-08-21 20:16:23,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:16:23, skipping insertion in model container [2020-08-21 20:16:23,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:16:23" (3/3) ... [2020-08-21 20:16:23,933 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 [2020-08-21 20:16:23,944 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 20:16:23,955 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 20:16:23,970 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 20:16:24,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 20:16:24,006 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 20:16:24,006 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 20:16:24,006 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 20:16:24,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 20:16:24,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 20:16:24,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 20:16:24,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 20:16:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-21 20:16:24,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-21 20:16:24,070 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:24,071 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] [2020-08-21 20:16:24,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:24,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:24,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-21 20:16:24,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:24,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708440345] [2020-08-21 20:16:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,769 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:16:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:16:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:16:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:24,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:16:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 20:16:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:25,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:25,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 20:16:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 20:16:25,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708440345] [2020-08-21 20:16:25,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:16:25,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 20:16:25,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274512221] [2020-08-21 20:16:25,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 20:16:25,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:25,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 20:16:25,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:16:25,174 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-21 20:16:25,370 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:16:26,109 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-21 20:16:26,372 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-21 20:16:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:16:33,429 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-21 20:16:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 20:16:33,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-21 20:16:33,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:16:33,457 INFO L225 Difference]: With dead ends: 1795 [2020-08-21 20:16:33,457 INFO L226 Difference]: Without dead ends: 957 [2020-08-21 20:16:33,469 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 [2020-08-21 20:16:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-21 20:16:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-21 20:16:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-21 20:16:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-21 20:16:33,665 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-21 20:16:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:16:33,666 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-21 20:16:33,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 20:16:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-21 20:16:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-21 20:16:33,674 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:33,674 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] [2020-08-21 20:16:33,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 20:16:33,675 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:33,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:33,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-21 20:16:33,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:33,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151514716] [2020-08-21 20:16:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,003 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:16:34,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:16:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:16:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:16:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 20:16:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-21 20:16:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 20:16:34,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151514716] [2020-08-21 20:16:34,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:16:34,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 20:16:34,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741508068] [2020-08-21 20:16:34,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 20:16:34,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:34,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 20:16:34,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:16:34,224 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-21 20:16:34,405 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:16:35,049 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-21 20:16:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:16:41,089 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-21 20:16:41,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 20:16:41,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-21 20:16:41,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:16:41,097 INFO L225 Difference]: With dead ends: 1743 [2020-08-21 20:16:41,097 INFO L226 Difference]: Without dead ends: 958 [2020-08-21 20:16:41,101 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 [2020-08-21 20:16:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-21 20:16:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-21 20:16:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-21 20:16:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-21 20:16:41,205 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-21 20:16:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:16:41,205 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-21 20:16:41,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 20:16:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-21 20:16:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-21 20:16:41,209 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:41,209 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] [2020-08-21 20:16:41,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 20:16:41,209 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:41,210 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-21 20:16:41,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:41,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683856691] [2020-08-21 20:16:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,498 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:16:41,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:16:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:16:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:16:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 20:16:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 20:16:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:41,769 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 20:16:41,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683856691] [2020-08-21 20:16:41,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:16:41,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 20:16:41,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390653142] [2020-08-21 20:16:41,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 20:16:41,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:41,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 20:16:41,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:16:41,774 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-21 20:16:41,967 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:16:42,692 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-21 20:16:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:16:50,212 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-21 20:16:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 20:16:50,212 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-21 20:16:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:16:50,220 INFO L225 Difference]: With dead ends: 1744 [2020-08-21 20:16:50,221 INFO L226 Difference]: Without dead ends: 959 [2020-08-21 20:16:50,223 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 [2020-08-21 20:16:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-21 20:16:50,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-21 20:16:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-21 20:16:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-21 20:16:50,325 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-21 20:16:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:16:50,326 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-21 20:16:50,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 20:16:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-21 20:16:50,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 20:16:50,328 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:50,328 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] [2020-08-21 20:16:50,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 20:16:50,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:50,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:50,329 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-21 20:16:50,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:50,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28680621] [2020-08-21 20:16:50,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,552 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:16:50,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:16:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:16:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:16:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 20:16:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 20:16:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-21 20:16:50,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28680621] [2020-08-21 20:16:50,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:16:50,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 20:16:50,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049901333] [2020-08-21 20:16:50,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 20:16:50,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:50,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 20:16:50,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:16:50,791 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-21 20:16:50,947 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:16:51,594 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-21 20:16:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:16:58,540 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-21 20:16:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 20:16:58,543 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-21 20:16:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:16:58,549 INFO L225 Difference]: With dead ends: 1745 [2020-08-21 20:16:58,550 INFO L226 Difference]: Without dead ends: 960 [2020-08-21 20:16:58,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-08-21 20:16:58,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-21 20:16:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-21 20:16:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-21 20:16:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-21 20:16:58,658 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-21 20:16:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:16:58,659 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-21 20:16:58,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 20:16:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-21 20:16:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 20:16:58,661 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:58,661 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] [2020-08-21 20:16:58,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 20:16:58,662 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-21 20:16:58,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:58,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231937896] [2020-08-21 20:16:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,919 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:16:58,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:16:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:16:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:58,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:59,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:16:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 20:16:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:59,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-21 20:16:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-21 20:16:59,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231937896] [2020-08-21 20:16:59,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:16:59,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 20:16:59,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32485961] [2020-08-21 20:16:59,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:16:59,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:59,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:16:59,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:16:59,076 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-21 20:16:59,241 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:16:59,920 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-21 20:17:04,427 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-21 20:17:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:17:12,170 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-21 20:17:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 20:17:12,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-21 20:17:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:17:12,181 INFO L225 Difference]: With dead ends: 2626 [2020-08-21 20:17:12,182 INFO L226 Difference]: Without dead ends: 1844 [2020-08-21 20:17:12,185 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 [2020-08-21 20:17:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-21 20:17:12,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-21 20:17:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-21 20:17:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-21 20:17:12,360 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-21 20:17:12,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:17:12,361 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-21 20:17:12,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:17:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-21 20:17:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 20:17:12,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:17:12,364 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] [2020-08-21 20:17:12,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 20:17:12,364 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:17:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:17:12,364 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-21 20:17:12,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:17:12,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030582043] [2020-08-21 20:17:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:17:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,611 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-21 20:17:12,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:17:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:17:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 20:17:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:17:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 20:17:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 20:17:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 20:17:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-21 20:17:12,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030582043] [2020-08-21 20:17:12,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:17:12,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 20:17:12,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247147513] [2020-08-21 20:17:12,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 20:17:12,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:17:12,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 20:17:12,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:17:12,862 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states. [2020-08-21 20:17:13,031 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-21 20:17:13,310 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 159