/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -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 [2020-08-19 00:02:39,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:02:39,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:02:39,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:02:39,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:02:39,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:02:39,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:02:39,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:02:39,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:02:39,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:02:39,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:02:39,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:02:39,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:02:39,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:02:39,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:02:39,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:02:39,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:02:39,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:02:39,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:02:39,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:02:39,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:02:39,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:02:39,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:02:39,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:02:39,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:02:39,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:02:39,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:02:39,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:02:39,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:02:39,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:02:39,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:02:39,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:02:39,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:02:39,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:02:39,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:02:39,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:02:39,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:02:39,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:02:39,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:02:39,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:02:39,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:02:39,346 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 [2020-08-19 00:02:39,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:02:39,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:02:39,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:02:39,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:02:39,389 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:02:39,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:02:39,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:02:39,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:02:39,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:02:39,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:02:39,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:02:39,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:02:39,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:02:39,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:02:39,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:02:39,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:02:39,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:02:39,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:02:39,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:02:39,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:02:39,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:02:39,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 00:02:39,395 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=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-19 00:02:39,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:02:39,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:02:39,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:02:39,724 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:02:39,724 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:02:39,725 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-19 00:02:39,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff03f6649/47d78fbec400423ab1d0f104c138073b/FLAGf1349c0a5 [2020-08-19 00:02:40,569 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:02:40,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-19 00:02:40,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff03f6649/47d78fbec400423ab1d0f104c138073b/FLAGf1349c0a5 [2020-08-19 00:02:41,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff03f6649/47d78fbec400423ab1d0f104c138073b [2020-08-19 00:02:41,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:02:41,151 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:02:41,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:02:41,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:02:41,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:02:41,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:02:41" (1/1) ... [2020-08-19 00:02:41,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521b4e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:41, skipping insertion in model container [2020-08-19 00:02:41,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:02:41" (1/1) ... [2020-08-19 00:02:41,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:02:41,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:02:42,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:02:42,931 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:02:43,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:02:43,690 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:02:43,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43 WrapperNode [2020-08-19 00:02:43,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:02:43,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:02:43,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:02:43,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:02:43,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (1/1) ... [2020-08-19 00:02:43,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:02:43,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:02:43,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:02:43,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:02:43,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (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 [2020-08-19 00:02:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:02:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:02:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-19 00:02:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-19 00:02:44,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-19 00:02:44,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-19 00:02:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-19 00:02:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-19 00:02:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-19 00:02:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-19 00:02:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-19 00:02:44,063 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-19 00:02:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-19 00:02:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-19 00:02:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-19 00:02:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-19 00:02:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-19 00:02:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-19 00:02:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-19 00:02:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-19 00:02:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-19 00:02:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-19 00:02:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-19 00:02:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-19 00:02:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-19 00:02:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-19 00:02:44,074 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-19 00:02:44,075 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-19 00:02:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-19 00:02:44,076 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-19 00:02:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-19 00:02:44,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-19 00:02:44,078 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-19 00:02:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-19 00:02:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-19 00:02:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 00:02:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 00:02:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 00:02:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 00:02:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 00:02:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 00:02:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 00:02:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-19 00:02:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-19 00:02:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-19 00:02:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-19 00:02:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-19 00:02:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-19 00:02:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-19 00:02:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-19 00:02:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-19 00:02:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-19 00:02:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-19 00:02:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-19 00:02:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-19 00:02:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-19 00:02:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-19 00:02:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-19 00:02:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-19 00:02:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-19 00:02:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-19 00:02:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-19 00:02:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-19 00:02:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-19 00:02:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-19 00:02:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-19 00:02:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-19 00:02:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-19 00:02:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-19 00:02:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-19 00:02:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-19 00:02:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-19 00:02:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-19 00:02:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-19 00:02:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:02:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-19 00:02:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-19 00:02:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-19 00:02:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-19 00:02:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-19 00:02:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-19 00:02:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-19 00:02:44,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-19 00:02:44,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-19 00:02:44,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-19 00:02:44,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-19 00:02:44,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-19 00:02:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-19 00:02:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-19 00:02:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-19 00:02:44,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-19 00:02:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-19 00:02:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-19 00:02:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-19 00:02:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-19 00:02:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-19 00:02:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-19 00:02:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-19 00:02:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-19 00:02:44,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-19 00:02:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 00:02:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-19 00:02:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-19 00:02:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-19 00:02:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-19 00:02:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-19 00:02:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 00:02:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-19 00:02:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-19 00:02:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-19 00:02:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-19 00:02:44,102 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-19 00:02:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-19 00:02:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-19 00:02:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-19 00:02:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-19 00:02:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-19 00:02:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-19 00:02:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-19 00:02:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-19 00:02:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-19 00:02:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-19 00:02:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-19 00:02:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-19 00:02:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-19 00:02:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-19 00:02:44,109 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-19 00:02:44,110 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-19 00:02:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-19 00:02:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-19 00:02:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-19 00:02:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-19 00:02:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-19 00:02:44,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-19 00:02:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-19 00:02:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-19 00:02:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-19 00:02:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-19 00:02:44,117 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-19 00:02:44,118 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-19 00:02:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-19 00:02:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-19 00:02:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-19 00:02:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-19 00:02:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-19 00:02:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-19 00:02:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-19 00:02:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-19 00:02:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-19 00:02:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-19 00:02:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-19 00:02:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 00:02:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-19 00:02:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 00:02:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-19 00:02:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:02:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-19 00:02:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-19 00:02:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-19 00:02:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-19 00:02:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-19 00:02:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:02:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-19 00:02:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-19 00:02:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-19 00:02:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-19 00:02:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-19 00:02:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-19 00:02:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-19 00:02:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-19 00:02:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-19 00:02:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:02:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-19 00:02:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-19 00:02:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-19 00:02:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-19 00:02:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-19 00:02:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-19 00:02:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-19 00:02:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-19 00:02:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-19 00:02:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-19 00:02:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-19 00:02:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-19 00:02:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-19 00:02:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-19 00:02:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-19 00:02:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:02:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-19 00:02:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-19 00:02:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-19 00:02:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-19 00:02:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-19 00:02:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-19 00:02:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-19 00:02:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-19 00:02:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-19 00:02:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-19 00:02:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-19 00:02:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-19 00:02:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-19 00:02:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-19 00:02:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-19 00:02:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-19 00:02:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-19 00:02:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:02:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-19 00:02:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-19 00:02:44,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-19 00:02:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-19 00:02:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-19 00:02:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-19 00:02:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-19 00:02:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-19 00:02:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:02:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-19 00:02:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-19 00:02:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-19 00:02:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-19 00:02:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:02:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 00:02:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:02:44,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 00:02:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 00:02:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 00:02:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 00:02:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:02:44,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 00:02:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 00:02:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 00:02:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 00:02:44,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 00:02:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 00:02:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-19 00:02:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-19 00:02:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-19 00:02:44,150 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-19 00:02:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-19 00:02:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-19 00:02:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-19 00:02:44,151 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-19 00:02:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-19 00:02:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-19 00:02:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-19 00:02:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-19 00:02:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-19 00:02:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-19 00:02:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-19 00:02:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-19 00:02:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-19 00:02:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-19 00:02:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-19 00:02:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-19 00:02:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-19 00:02:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-19 00:02:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-19 00:02:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-19 00:02:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-19 00:02:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-19 00:02:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-19 00:02:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-19 00:02:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-19 00:02:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-19 00:02:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-19 00:02:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-19 00:02:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-19 00:02:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-19 00:02:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-19 00:02:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-19 00:02:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-19 00:02:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-19 00:02:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-19 00:02:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-19 00:02:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-19 00:02:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:02:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-19 00:02:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-19 00:02:45,054 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 00:02:46,401 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:02:46,402 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 00:02:46,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:02:46 BoogieIcfgContainer [2020-08-19 00:02:46,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:02:46,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:02:46,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:02:46,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:02:46,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:02:41" (1/3) ... [2020-08-19 00:02:46,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff946b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:02:46, skipping insertion in model container [2020-08-19 00:02:46,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:43" (2/3) ... [2020-08-19 00:02:46,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff946b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:02:46, skipping insertion in model container [2020-08-19 00:02:46,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:02:46" (3/3) ... [2020-08-19 00:02:46,425 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 [2020-08-19 00:02:46,436 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:02:46,445 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:02:46,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:02:46,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:02:46,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:02:46,491 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:02:46,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:02:46,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:02:46,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:02:46,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:02:46,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:02:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-19 00:02:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-19 00:02:46,547 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:02:46,549 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] [2020-08-19 00:02:46,549 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:02:46,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:02:46,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-19 00:02:46,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:02:46,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278640461] [2020-08-19 00:02:46,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:02:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,300 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-19 00:02:47,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:02:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:02:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:02:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-19 00:02:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:02:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 00:02:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-19 00:02:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:47,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-19 00:02:47,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278640461] [2020-08-19 00:02:47,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:02:47,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 00:02:47,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425261590] [2020-08-19 00:02:47,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:02:47,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:02:47,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:02:47,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:02:47,600 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-19 00:02:47,829 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-19 00:02:48,642 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-19 00:02:48,865 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-19 00:02:56,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:02:56,150 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-19 00:02:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 00:02:56,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-19 00:02:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:02:56,177 INFO L225 Difference]: With dead ends: 1795 [2020-08-19 00:02:56,177 INFO L226 Difference]: Without dead ends: 957 [2020-08-19 00:02:56,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-08-19 00:02:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-19 00:02:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-19 00:02:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-19 00:02:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-19 00:02:56,391 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-19 00:02:56,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:02:56,392 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-19 00:02:56,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:02:56,392 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-19 00:02:56,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-19 00:02:56,399 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:02:56,399 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] [2020-08-19 00:02:56,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:02:56,400 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:02:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:02:56,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-19 00:02:56,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:02:56,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163959028] [2020-08-19 00:02:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:02:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,788 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-19 00:02:56,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:02:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:02:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:02:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-19 00:02:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:02:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 00:02:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:02:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 00:02:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:02:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-19 00:02:56,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163959028] [2020-08-19 00:02:56,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:02:56,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 00:02:56,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660679079] [2020-08-19 00:02:56,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:02:56,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:02:56,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:02:56,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:02:56,984 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-19 00:02:57,196 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-19 00:02:57,814 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-19 00:03:04,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:04,291 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-19 00:03:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 00:03:04,291 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-19 00:03:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:04,299 INFO L225 Difference]: With dead ends: 1743 [2020-08-19 00:03:04,300 INFO L226 Difference]: Without dead ends: 958 [2020-08-19 00:03:04,304 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 [2020-08-19 00:03:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-19 00:03:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-19 00:03:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-19 00:03:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-19 00:03:04,420 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-19 00:03:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:04,421 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-19 00:03:04,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:03:04,421 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-19 00:03:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-19 00:03:04,425 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:04,425 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] [2020-08-19 00:03:04,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:03:04,425 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:04,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:04,426 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-19 00:03:04,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:04,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098327386] [2020-08-19 00:03:04,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,684 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-19 00:03:04,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-19 00:03:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 00:03:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 00:03:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-19 00:03:04,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098327386] [2020-08-19 00:03:04,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:04,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:03:04,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413270424] [2020-08-19 00:03:04,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:03:04,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:04,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:03:04,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:03:04,977 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-19 00:03:05,142 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-19 00:03:05,841 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-19 00:03:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:13,368 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-19 00:03:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 00:03:13,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-19 00:03:13,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:13,376 INFO L225 Difference]: With dead ends: 1744 [2020-08-19 00:03:13,376 INFO L226 Difference]: Without dead ends: 959 [2020-08-19 00:03:13,379 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 [2020-08-19 00:03:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-19 00:03:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-19 00:03:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-19 00:03:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-19 00:03:13,481 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-19 00:03:13,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:13,482 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-19 00:03:13,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:03:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-19 00:03:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 00:03:13,484 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:13,484 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] [2020-08-19 00:03:13,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:03:13,485 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-19 00:03:13,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:13,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801445658] [2020-08-19 00:03:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,790 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-19 00:03:13,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-19 00:03:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 00:03:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:13,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:14,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 00:03:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-19 00:03:14,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801445658] [2020-08-19 00:03:14,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:14,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-19 00:03:14,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800556952] [2020-08-19 00:03:14,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 00:03:14,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:14,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 00:03:14,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:03:14,025 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-19 00:03:14,197 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-19 00:03:14,876 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-19 00:03:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:21,866 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-19 00:03:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 00:03:21,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-19 00:03:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:21,874 INFO L225 Difference]: With dead ends: 1745 [2020-08-19 00:03:21,874 INFO L226 Difference]: Without dead ends: 960 [2020-08-19 00:03:21,877 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 [2020-08-19 00:03:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-19 00:03:21,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-19 00:03:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-19 00:03:21,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-19 00:03:21,966 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-19 00:03:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:21,967 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-19 00:03:21,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 00:03:21,967 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-19 00:03:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 00:03:21,969 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:21,969 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] [2020-08-19 00:03:21,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:03:21,969 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:21,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:21,970 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-19 00:03:21,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:21,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122883052] [2020-08-19 00:03:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,207 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-19 00:03:22,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-19 00:03:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-19 00:03:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-19 00:03:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-19 00:03:22,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122883052] [2020-08-19 00:03:22,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:22,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:03:22,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028395828] [2020-08-19 00:03:22,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:03:22,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:22,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:03:22,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:03:22,422 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-19 00:03:22,579 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-19 00:03:23,307 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-19 00:03:27,708 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-19 00:03:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:35,433 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-19 00:03:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 00:03:35,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-19 00:03:35,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:35,445 INFO L225 Difference]: With dead ends: 2626 [2020-08-19 00:03:35,445 INFO L226 Difference]: Without dead ends: 1844 [2020-08-19 00:03:35,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-08-19 00:03:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-19 00:03:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-19 00:03:35,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-19 00:03:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-19 00:03:35,677 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-19 00:03:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:35,677 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-19 00:03:35,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:03:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-19 00:03:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-19 00:03:35,681 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:35,682 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] [2020-08-19 00:03:35,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:03:35,682 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:35,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:35,683 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-19 00:03:35,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:35,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865380810] [2020-08-19 00:03:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat