/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 16:47:24,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:47:24,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:47:24,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:47:24,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:47:24,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:47:24,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:47:24,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:47:24,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:47:24,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:47:24,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:47:24,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:47:24,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:47:24,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:47:24,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:47:24,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:47:24,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:47:24,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:47:24,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:47:24,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:47:24,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:47:24,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:47:24,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:47:24,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:47:24,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:47:24,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:47:24,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:47:24,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:47:24,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:47:24,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:47:24,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:47:24,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:47:24,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:47:24,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:47:24,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:47:24,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:47:24,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:47:24,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:47:24,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:47:24,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:47:24,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:47:24,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-18 16:47:24,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:47:24,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:47:24,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:47:24,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:47:24,229 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:47:24,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:47:24,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:47:24,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:47:24,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:47:24,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:47:24,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:47:24,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:47:24,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:47:24,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:47:24,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:47:24,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:47:24,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:47:24,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:47:24,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:47:24,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:47:24,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:47:24,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 16:47:24,235 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 [2020-08-18 16:47:24,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:47:24,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:47:24,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:47:24,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:47:24,587 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:47:24,588 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 16:47:24,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00ff15bd/ff2d40011afe44c4a68e0dc1675c69eb/FLAGb7e9eae82 [2020-08-18 16:47:25,402 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:47:25,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 16:47:25,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00ff15bd/ff2d40011afe44c4a68e0dc1675c69eb/FLAGb7e9eae82 [2020-08-18 16:47:25,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d00ff15bd/ff2d40011afe44c4a68e0dc1675c69eb [2020-08-18 16:47:25,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:47:25,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:47:25,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:47:25,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:47:25,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:47:25,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:47:25" (1/1) ... [2020-08-18 16:47:25,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7455d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:25, skipping insertion in model container [2020-08-18 16:47:25,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:47:25" (1/1) ... [2020-08-18 16:47:25,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:47:25,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:47:27,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:47:27,544 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:47:27,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:47:28,200 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:47:28,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28 WrapperNode [2020-08-18 16:47:28,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:47:28,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:47:28,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:47:28,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:47:28,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... [2020-08-18 16:47:28,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:47:28,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:47:28,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:47:28,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:47:28,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:47:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:47:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:47:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 16:47:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 16:47:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 16:47:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 16:47:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 16:47:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-18 16:47:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-18 16:47:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-18 16:47:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 16:47:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 16:47:28,686 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 16:47:28,687 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 16:47:28,688 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 16:47:28,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-18 16:47:28,688 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 16:47:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-18 16:47:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-18 16:47:28,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-18 16:47:28,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 16:47:28,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 16:47:28,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-18 16:47:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-18 16:47:28,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-18 16:47:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-18 16:47:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-18 16:47:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-18 16:47:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-18 16:47:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 16:47:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-18 16:47:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-18 16:47:28,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-18 16:47:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-18 16:47:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-18 16:47:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-18 16:47:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-18 16:47:28,702 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-18 16:47:28,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-18 16:47:28,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-18 16:47:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-18 16:47:28,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:47:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-18 16:47:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-18 16:47:28,706 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-18 16:47:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-18 16:47:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-18 16:47:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-18 16:47:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-18 16:47:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-18 16:47:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-18 16:47:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-18 16:47:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-18 16:47:28,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-18 16:47:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-18 16:47:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-18 16:47:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-18 16:47:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-18 16:47:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-18 16:47:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-18 16:47:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-18 16:47:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-18 16:47:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-18 16:47:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-18 16:47:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-18 16:47:28,714 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-18 16:47:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-18 16:47:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-18 16:47:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-18 16:47:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-18 16:47:28,715 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-18 16:47:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-18 16:47:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-18 16:47:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-18 16:47:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-18 16:47:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-18 16:47:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-18 16:47:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-18 16:47:28,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-18 16:47:28,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-18 16:47:28,719 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-18 16:47:28,719 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-18 16:47:28,720 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-18 16:47:28,720 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-18 16:47:28,720 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-18 16:47:28,721 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-18 16:47:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-18 16:47:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-18 16:47:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-18 16:47:28,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-18 16:47:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-18 16:47:28,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-18 16:47:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-18 16:47:28,727 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-18 16:47:28,728 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-18 16:47:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-18 16:47:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 16:47:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 16:47:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-18 16:47:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 16:47:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 16:47:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 16:47:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-18 16:47:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-18 16:47:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 16:47:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 16:47:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-18 16:47:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:47:28,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 16:47:28,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-18 16:47:28,749 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-18 16:47:28,750 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-18 16:47:28,751 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-18 16:47:28,753 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-18 16:47:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-18 16:47:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-18 16:47:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-18 16:47:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-18 16:47:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-18 16:47:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-18 16:47:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-18 16:47:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-18 16:47:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-18 16:47:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-18 16:47:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-18 16:47:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-18 16:47:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:47:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-18 16:47:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 16:47:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:47:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-18 16:47:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-18 16:47:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-18 16:47:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-18 16:47:29,569 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 16:47:30,889 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:47:30,889 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 16:47:30,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:47:30 BoogieIcfgContainer [2020-08-18 16:47:30,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:47:30,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:47:30,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:47:30,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:47:30,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:47:25" (1/3) ... [2020-08-18 16:47:30,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a556d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:47:30, skipping insertion in model container [2020-08-18 16:47:30,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:47:28" (2/3) ... [2020-08-18 16:47:30,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a556d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:47:30, skipping insertion in model container [2020-08-18 16:47:30,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:47:30" (3/3) ... [2020-08-18 16:47:30,908 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 16:47:30,919 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:47:30,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:47:30,943 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:47:30,974 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:47:30,974 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:47:30,974 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:47:30,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:47:30,975 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:47:30,975 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:47:30,975 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:47:30,975 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:47:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-18 16:47:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 16:47:31,033 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:47:31,034 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:47:31,034 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:47:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:47:31,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-18 16:47:31,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:47:31,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044240824] [2020-08-18 16:47:31,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:47:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:31,909 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:47:31,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:31,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:47:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:47:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:47:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:47:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:47:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 16:47:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 16:47:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 16:47:32,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044240824] [2020-08-18 16:47:32,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:47:32,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 16:47:32,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508098992] [2020-08-18 16:47:32,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 16:47:32,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:47:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 16:47:32,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 16:47:32,171 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-18 16:47:32,380 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:47:33,106 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 16:47:33,326 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 16:47:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:47:40,723 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-18 16:47:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 16:47:40,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-18 16:47:40,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:47:40,752 INFO L225 Difference]: With dead ends: 1795 [2020-08-18 16:47:40,752 INFO L226 Difference]: Without dead ends: 957 [2020-08-18 16:47:40,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-08-18 16:47:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-18 16:47:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-18 16:47:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-18 16:47:40,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-18 16:47:40,980 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-18 16:47:40,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:47:40,981 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-18 16:47:40,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 16:47:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-18 16:47:40,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 16:47:40,987 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:47:40,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:47:40,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:47:40,988 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:47:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:47:40,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-18 16:47:40,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:47:40,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410150314] [2020-08-18 16:47:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:47:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,274 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:47:41,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:47:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:47:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:47:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:47:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:47:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 16:47:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 16:47:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 16:47:41,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410150314] [2020-08-18 16:47:41,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:47:41,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 16:47:41,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709553436] [2020-08-18 16:47:41,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 16:47:41,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:47:41,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 16:47:41,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:47:41,457 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-18 16:47:41,643 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:47:42,289 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 16:47:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:47:48,640 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-18 16:47:48,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 16:47:48,640 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-18 16:47:48,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:47:48,649 INFO L225 Difference]: With dead ends: 1743 [2020-08-18 16:47:48,649 INFO L226 Difference]: Without dead ends: 958 [2020-08-18 16:47:48,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-08-18 16:47:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-18 16:47:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-18 16:47:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-18 16:47:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-18 16:47:48,760 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-18 16:47:48,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:47:48,760 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-18 16:47:48,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 16:47:48,761 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-18 16:47:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 16:47:48,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:47:48,764 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:47:48,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:47:48,765 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:47:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:47:48,765 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-18 16:47:48,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:47:48,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292800973] [2020-08-18 16:47:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:47:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,035 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:47:49,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:47:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:47:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:47:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:47:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:47:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 16:47:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:47:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 16:47:49,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292800973] [2020-08-18 16:47:49,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:47:49,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 16:47:49,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300248090] [2020-08-18 16:47:49,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:47:49,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:47:49,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:47:49,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:47:49,281 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-18 16:47:49,466 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:47:50,127 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 16:47:57,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:47:57,806 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-18 16:47:57,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 16:47:57,806 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-18 16:47:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:47:57,814 INFO L225 Difference]: With dead ends: 1744 [2020-08-18 16:47:57,814 INFO L226 Difference]: Without dead ends: 959 [2020-08-18 16:47:57,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-08-18 16:47:57,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-18 16:47:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-18 16:47:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-18 16:47:57,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-18 16:47:57,926 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-18 16:47:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:47:57,927 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-18 16:47:57,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 16:47:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-18 16:47:57,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 16:47:57,929 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:47:57,930 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:47:57,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:47:57,930 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:47:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:47:57,931 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-18 16:47:57,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:47:57,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170750684] [2020-08-18 16:47:57,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:47:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,207 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:47:58,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:47:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:47:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:47:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:47:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:47:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:47:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:47:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 16:47:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:47:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 16:47:58,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170750684] [2020-08-18 16:47:58,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:47:58,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 16:47:58,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816509000] [2020-08-18 16:47:58,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 16:47:58,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:47:58,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 16:47:58,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 16:47:58,401 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-18 16:47:58,556 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:47:59,197 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 16:48:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:48:06,131 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-18 16:48:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 16:48:06,132 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-18 16:48:06,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:48:06,139 INFO L225 Difference]: With dead ends: 1745 [2020-08-18 16:48:06,139 INFO L226 Difference]: Without dead ends: 960 [2020-08-18 16:48:06,142 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 [2020-08-18 16:48:06,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-18 16:48:06,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-18 16:48:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-18 16:48:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-18 16:48:06,238 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-18 16:48:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:48:06,239 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-18 16:48:06,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 16:48:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-18 16:48:06,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 16:48:06,241 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:48:06,242 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:48:06,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 16:48:06,242 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:48:06,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:48:06,243 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-18 16:48:06,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:48:06,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597684744] [2020-08-18 16:48:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:48:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,498 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:48:06,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:48:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:48:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:48:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:48:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:48:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:48:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:48:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 16:48:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:48:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 16:48:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 16:48:06,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597684744] [2020-08-18 16:48:06,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:48:06,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 16:48:06,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728082701] [2020-08-18 16:48:06,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 16:48:06,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:48:06,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 16:48:06,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 16:48:06,667 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-18 16:48:06,857 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:48:07,576 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 16:48:12,053 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 16:48:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:48:19,745 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-18 16:48:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 16:48:19,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 16:48:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:48:19,756 INFO L225 Difference]: With dead ends: 2626 [2020-08-18 16:48:19,757 INFO L226 Difference]: Without dead ends: 1844 [2020-08-18 16:48:19,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-08-18 16:48:19,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-18 16:48:19,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-18 16:48:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-18 16:48:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-18 16:48:19,961 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-18 16:48:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:48:19,962 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-18 16:48:19,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 16:48:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-18 16:48:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 16:48:19,966 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:48:19,966 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:48:19,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 16:48:19,967 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:48:19,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:48:19,967 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-18 16:48:19,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:48:19,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275546908] [2020-08-18 16:48:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:48:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,291 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 16:48:20,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:48:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:48:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:48:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 16:48:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 16:48:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:48:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 16:48:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 16:48:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:48:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 16:48:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:48:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 16:48:20,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275546908] [2020-08-18 16:48:20,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:48:20,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 16:48:20,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878082986] [2020-08-18 16:48:20,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:48:20,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:48:20,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:48:20,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:48:20,513 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states. [2020-08-18 16:48:20,702 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 16:48:20,987 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 159