/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -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 12:39:15,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:39:15,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:39:15,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 12:39:15,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 12:39:15,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 12:39:15,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 12:39:15,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 12:39:15,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 12:39:15,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 12:39:15,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 12:39:15,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 12:39:15,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:39:15,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:39:15,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:39:15,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:39:15,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:39:15,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:39:15,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:39:15,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:39:15,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:39:15,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:39:15,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:39:15,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:39:15,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 12:39:15,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 12:39:15,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 12:39:15,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 12:39:15,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 12:39:15,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 12:39:15,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 12:39:15,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 12:39:15,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 12:39:15,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 12:39:15,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 12:39:15,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 12:39:15,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 12:39:15,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 12:39:15,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:39:15,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:39:15,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:39:15,178 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 12:39:15,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:39:15,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:39:15,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:39:15,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:39:15,221 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:39:15,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:39:15,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:39:15,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:39:15,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:39:15,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:39:15,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:39:15,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:39:15,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:39:15,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:39:15,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:39:15,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:39:15,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:39:15,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:39:15,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:39:15,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:39:15,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:39:15,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:39:15,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:39:15,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:39:15,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:39:15,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:39:15,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 12:39:15,227 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 12:39:15,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:39:15,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:39:15,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:39:15,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:39:15,551 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:39:15,552 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 12:39:15,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c9a2570/f18527c3fbd64cd995eaf3217d0aaf8a/FLAG48f608ccb [2020-08-18 12:39:16,381 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:39:16,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 12:39:16,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c9a2570/f18527c3fbd64cd995eaf3217d0aaf8a/FLAG48f608ccb [2020-08-18 12:39:16,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c9a2570/f18527c3fbd64cd995eaf3217d0aaf8a [2020-08-18 12:39:16,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:39:16,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:39:16,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:39:16,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:39:16,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:39:16,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:39:16" (1/1) ... [2020-08-18 12:39:16,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3648f342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:16, skipping insertion in model container [2020-08-18 12:39:16,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:39:16" (1/1) ... [2020-08-18 12:39:16,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:39:17,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:39:19,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:39:19,252 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:39:19,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:39:19,969 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:39:19,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19 WrapperNode [2020-08-18 12:39:19,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:39:19,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:39:19,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:39:19,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:39:19,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:19,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (1/1) ... [2020-08-18 12:39:20,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:39:20,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:39:20,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:39:20,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:39:20,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (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 12:39:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:39:20,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:39:20,273 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 12:39:20,273 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 12:39:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 12:39:20,274 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 12:39:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 12:39:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-18 12:39:20,274 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-18 12:39:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-18 12:39:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 12:39:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 12:39:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 12:39:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 12:39:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 12:39:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-18 12:39:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 12:39:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-18 12:39:20,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-18 12:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-18 12:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 12:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 12:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 12:39:20,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-18 12:39:20,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 12:39:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 12:39:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 12:39:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 12:39:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 12:39:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 12:39:20,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-18 12:39:20,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-18 12:39:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-18 12:39:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-18 12:39:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-18 12:39:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-18 12:39:20,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-18 12:39:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-18 12:39:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 12:39:20,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 12:39:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-18 12:39:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-18 12:39:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-18 12:39:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-18 12:39:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-18 12:39:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-18 12:39:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 12:39:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-18 12:39:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-18 12:39:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 12:39:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-18 12:39:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 12:39:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 12:39:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-18 12:39:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-18 12:39:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 12:39:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 12:39:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-18 12:39:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-18 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-18 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-18 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-18 12:39:20,305 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 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-18 12:39:20,305 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 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-18 12:39:20,305 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-18 12:39:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-18 12:39:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 12:39:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-18 12:39:20,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 12:39:20,308 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 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-18 12:39:20,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-18 12:39:20,310 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 12:39:20,311 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 12:39:20,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-18 12:39:20,314 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-18 12:39:20,315 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-18 12:39:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-18 12:39:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-18 12:39:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-18 12:39:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-18 12:39:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-18 12:39:20,321 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-18 12:39:20,322 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-18 12:39:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-18 12:39:20,324 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-18 12:39:20,325 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-18 12:39:20,326 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-18 12:39:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 12:39:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-18 12:39:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:39:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-18 12:39:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-18 12:39:21,085 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 12:39:22,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:39:22,487 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 12:39:22,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:39:22 BoogieIcfgContainer [2020-08-18 12:39:22,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:39:22,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:39:22,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:39:22,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:39:22,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:39:16" (1/3) ... [2020-08-18 12:39:22,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e09122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:39:22, skipping insertion in model container [2020-08-18 12:39:22,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:39:19" (2/3) ... [2020-08-18 12:39:22,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e09122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:39:22, skipping insertion in model container [2020-08-18 12:39:22,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:39:22" (3/3) ... [2020-08-18 12:39:22,508 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 12:39:22,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:39:22,532 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:39:22,546 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:39:22,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:39:22,573 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:39:22,573 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:39:22,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:39:22,573 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:39:22,574 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:39:22,574 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:39:22,574 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:39:22,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-18 12:39:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 12:39:22,644 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:39:22,645 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 12:39:22,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:39:22,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:39:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-18 12:39:22,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:39:22,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771159784] [2020-08-18 12:39:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:39:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,402 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:39:23,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:39:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:39:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:39:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:39:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:39:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 12:39:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 12:39:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:23,715 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 12:39:23,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771159784] [2020-08-18 12:39:23,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:39:23,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 12:39:23,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149777750] [2020-08-18 12:39:23,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 12:39:23,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:39:23,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 12:39:23,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 12:39:23,742 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-18 12:39:23,931 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:39:24,538 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 12:39:24,795 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 12:39:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:39:31,561 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-18 12:39:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 12:39:31,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-18 12:39:31,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:39:31,587 INFO L225 Difference]: With dead ends: 1795 [2020-08-18 12:39:31,588 INFO L226 Difference]: Without dead ends: 957 [2020-08-18 12:39:31,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-08-18 12:39:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-18 12:39:31,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-18 12:39:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-18 12:39:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-18 12:39:31,807 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-18 12:39:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:39:31,807 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-18 12:39:31,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 12:39:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-18 12:39:31,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 12:39:31,812 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:39:31,813 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 12:39:31,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:39:31,813 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:39:31,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:39:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-18 12:39:31,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:39:31,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145759402] [2020-08-18 12:39:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:39:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,088 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:39:32,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:39:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:39:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:39:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:39:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:39:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 12:39:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 12:39:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:32,319 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 12:39:32,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145759402] [2020-08-18 12:39:32,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:39:32,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 12:39:32,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149943981] [2020-08-18 12:39:32,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:39:32,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:39:32,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:39:32,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:39:32,324 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-18 12:39:32,505 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:39:33,203 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 12:39:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:39:39,688 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-18 12:39:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 12:39:39,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-18 12:39:39,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:39:39,698 INFO L225 Difference]: With dead ends: 1743 [2020-08-18 12:39:39,698 INFO L226 Difference]: Without dead ends: 958 [2020-08-18 12:39:39,702 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 12:39:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-18 12:39:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-18 12:39:39,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-18 12:39:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-18 12:39:39,813 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-18 12:39:39,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:39:39,813 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-18 12:39:39,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:39:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-18 12:39:39,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 12:39:39,817 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:39:39,817 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 12:39:39,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:39:39,817 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:39:39,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:39:39,818 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-18 12:39:39,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:39:39,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83130709] [2020-08-18 12:39:39,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:39:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,075 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:39:40,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:39:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:39:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:39:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:39:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:39:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 12:39:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 12:39:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:40,346 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 12:39:40,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83130709] [2020-08-18 12:39:40,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:39:40,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 12:39:40,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609983635] [2020-08-18 12:39:40,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 12:39:40,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:39:40,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 12:39:40,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 12:39:40,349 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-18 12:39:40,621 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:39:41,284 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 12:39:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:39:48,812 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-18 12:39:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 12:39:48,812 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-18 12:39:48,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:39:48,820 INFO L225 Difference]: With dead ends: 1744 [2020-08-18 12:39:48,820 INFO L226 Difference]: Without dead ends: 959 [2020-08-18 12:39:48,823 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 12:39:48,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-18 12:39:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-18 12:39:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-18 12:39:48,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-18 12:39:48,920 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-18 12:39:48,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:39:48,921 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-18 12:39:48,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 12:39:48,921 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-18 12:39:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 12:39:48,923 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:39:48,923 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 12:39:48,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 12:39:48,924 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:39:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:39:48,924 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-18 12:39:48,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:39:48,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421210936] [2020-08-18 12:39:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:39:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,164 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:39:49,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:39:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:39:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:39:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:39:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:39:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 12:39:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:39:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:49,445 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 12:39:49,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421210936] [2020-08-18 12:39:49,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:39:49,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 12:39:49,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612396882] [2020-08-18 12:39:49,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 12:39:49,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:39:49,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 12:39:49,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 12:39:49,452 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-18 12:39:49,615 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:39:50,262 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 12:39:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:39:57,099 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-18 12:39:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 12:39:57,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-18 12:39:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:39:57,106 INFO L225 Difference]: With dead ends: 1745 [2020-08-18 12:39:57,106 INFO L226 Difference]: Without dead ends: 960 [2020-08-18 12:39:57,109 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 12:39:57,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-18 12:39:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-18 12:39:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-18 12:39:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-18 12:39:57,190 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-18 12:39:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:39:57,191 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-18 12:39:57,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 12:39:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-18 12:39:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 12:39:57,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:39:57,193 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 12:39:57,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 12:39:57,193 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:39:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:39:57,194 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-18 12:39:57,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:39:57,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729561677] [2020-08-18 12:39:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:39:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,430 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:39:57,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:39:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:39:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:39:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:39:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:39:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 12:39:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:39:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 12:39:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:39:57,583 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 12:39:57,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729561677] [2020-08-18 12:39:57,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:39:57,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 12:39:57,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071618679] [2020-08-18 12:39:57,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:39:57,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:39:57,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:39:57,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:39:57,586 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-18 12:39:57,778 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:39:58,422 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 12:40:03,205 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 12:40:09,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:40:09,969 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-18 12:40:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 12:40:09,970 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 12:40:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:40:09,980 INFO L225 Difference]: With dead ends: 2626 [2020-08-18 12:40:09,981 INFO L226 Difference]: Without dead ends: 1844 [2020-08-18 12:40:09,984 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 12:40:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-18 12:40:10,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-18 12:40:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-18 12:40:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-18 12:40:10,163 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-18 12:40:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:40:10,163 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-18 12:40:10,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:40:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-18 12:40:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 12:40:10,169 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:40:10,169 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 12:40:10,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 12:40:10,169 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:40:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:40:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-18 12:40:10,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:40:10,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417908702] [2020-08-18 12:40:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:40:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,479 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 12:40:10,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:40:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:40:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:40:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:40:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 12:40:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:40:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 12:40:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:40:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:40:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 12:40:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:40:10,670 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 12:40:10,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417908702] [2020-08-18 12:40:10,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:40:10,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 12:40:10,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291167273] [2020-08-18 12:40:10,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 12:40:10,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:40:10,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 12:40:10,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 12:40:10,673 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states. [2020-08-18 12:40:10,866 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 12:40:11,181 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 12:40:11,444 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 12:40:13,390 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-08-18 12:40:13,669 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 12:40:13,887 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 162