/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 18:24:02,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 18:24:02,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 18:24:02,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 18:24:02,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 18:24:02,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 18:24:02,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 18:24:02,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 18:24:02,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 18:24:02,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 18:24:02,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 18:24:02,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 18:24:02,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 18:24:02,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 18:24:02,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 18:24:02,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 18:24:02,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 18:24:02,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 18:24:02,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 18:24:02,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 18:24:02,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 18:24:02,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 18:24:02,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 18:24:02,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 18:24:02,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 18:24:02,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 18:24:02,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 18:24:02,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 18:24:02,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 18:24:02,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 18:24:02,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 18:24:02,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 18:24:02,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 18:24:02,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 18:24:02,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 18:24:02,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 18:24:02,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 18:24:02,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 18:24:02,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 18:24:02,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 18:24:02,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 18:24:02,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-18 18:24:02,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 18:24:02,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 18:24:02,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 18:24:02,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 18:24:02,593 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 18:24:02,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 18:24:02,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 18:24:02,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 18:24:02,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 18:24:02,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 18:24:02,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 18:24:02,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 18:24:02,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 18:24:02,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 18:24:02,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 18:24:02,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 18:24:02,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 18:24:02,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 18:24:02,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:24:02,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 18:24:02,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 18:24:02,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 18:24:02,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 18:24:02,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 18:24:02,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 18:24:02,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 18:24:02,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 18:24:02,600 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 18:24:02,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 18:24:02,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 18:24:02,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 18:24:02,927 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 18:24:02,927 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 18:24:02,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 18:24:02,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cc4b6186/f8906fe29d2a44f6807d9aea96b338f4/FLAG928b007f8 [2020-08-18 18:24:03,755 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 18:24:03,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 18:24:03,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cc4b6186/f8906fe29d2a44f6807d9aea96b338f4/FLAG928b007f8 [2020-08-18 18:24:04,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9cc4b6186/f8906fe29d2a44f6807d9aea96b338f4 [2020-08-18 18:24:04,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 18:24:04,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 18:24:04,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 18:24:04,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 18:24:04,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 18:24:04,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:24:04" (1/1) ... [2020-08-18 18:24:04,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d314089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:04, skipping insertion in model container [2020-08-18 18:24:04,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 06:24:04" (1/1) ... [2020-08-18 18:24:04,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 18:24:04,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 18:24:06,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:24:06,220 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 18:24:06,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 18:24:06,854 INFO L208 MainTranslator]: Completed translation [2020-08-18 18:24:06,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06 WrapperNode [2020-08-18 18:24:06,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 18:24:06,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 18:24:06,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 18:24:06,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 18:24:06,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:06,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:06,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:06,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:07,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:07,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:07,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... [2020-08-18 18:24:07,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 18:24:07,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 18:24:07,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 18:24:07,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 18:24:07,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 18:24:07,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 18:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 18:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 18:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 18:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 18:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 18:24:07,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 18:24:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 18:24:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 18:24:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 18:24:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-18 18:24:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 18:24:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-18 18:24:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-18 18:24:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-18 18:24:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 18:24:07,210 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-18 18:24:07,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-18 18:24:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 18:24:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-18 18:24:07,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-18 18:24:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-18 18:24:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-18 18:24:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-18 18:24:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-18 18:24:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-18 18:24:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-18 18:24:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-18 18:24:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-18 18:24:07,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-18 18:24:07,224 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-18 18:24:07,225 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-18 18:24:07,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-18 18:24:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-18 18:24:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-18 18:24:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-18 18:24:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 18:24:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-18 18:24:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 18:24:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-18 18:24:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 18:24:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 18:24:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-18 18:24:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 18:24:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 18:24:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-18 18:24:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 18:24:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-18 18:24:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-18 18:24:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-18 18:24:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-18 18:24:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 18:24:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 18:24:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-18 18:24:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-18 18:24:07,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-18 18:24:07,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-18 18:24:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-18 18:24:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-18 18:24:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-18 18:24:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-18 18:24:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-18 18:24:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-18 18:24:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 18:24:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-18 18:24:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 18:24:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 18:24:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 18:24:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-18 18:24:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-18 18:24:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-18 18:24:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-18 18:24:08,063 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 18:24:09,407 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 18:24:09,407 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 18:24:09,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:24:09 BoogieIcfgContainer [2020-08-18 18:24:09,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 18:24:09,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 18:24:09,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 18:24:09,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 18:24:09,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 06:24:04" (1/3) ... [2020-08-18 18:24:09,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:24:09, skipping insertion in model container [2020-08-18 18:24:09,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 06:24:06" (2/3) ... [2020-08-18 18:24:09,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e27ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 06:24:09, skipping insertion in model container [2020-08-18 18:24:09,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 06:24:09" (3/3) ... [2020-08-18 18:24:09,427 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 18:24:09,437 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 18:24:09,447 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 18:24:09,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 18:24:09,487 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 18:24:09,487 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 18:24:09,487 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 18:24:09,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 18:24:09,488 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 18:24:09,488 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 18:24:09,488 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 18:24:09,488 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 18:24:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-18 18:24:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 18:24:09,552 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:09,553 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:09,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:09,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:09,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-18 18:24:09,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:09,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708440345] [2020-08-18 18:24:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,254 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 18:24:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 18:24:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 18:24:10,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708440345] [2020-08-18 18:24:10,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:24:10,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 18:24:10,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233414830] [2020-08-18 18:24:10,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 18:24:10,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:10,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 18:24:10,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 18:24:10,506 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-18 18:24:10,788 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:11,402 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 18:24:11,590 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 18:24:18,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:24:18,234 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-18 18:24:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 18:24:18,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-18 18:24:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:24:18,264 INFO L225 Difference]: With dead ends: 1795 [2020-08-18 18:24:18,264 INFO L226 Difference]: Without dead ends: 957 [2020-08-18 18:24:18,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-08-18 18:24:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-18 18:24:18,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-18 18:24:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-18 18:24:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-18 18:24:18,464 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-18 18:24:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:24:18,465 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-18 18:24:18,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 18:24:18,465 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-18 18:24:18,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 18:24:18,470 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:18,470 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:18,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 18:24:18,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:18,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:18,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-18 18:24:18,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:18,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914101403] [2020-08-18 18:24:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,707 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 18:24:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 18:24:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 18:24:18,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914101403] [2020-08-18 18:24:18,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:24:18,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 18:24:18,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083646388] [2020-08-18 18:24:18,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 18:24:18,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:18,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 18:24:18,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 18:24:18,883 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-18 18:24:19,083 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:19,699 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 18:24:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:24:25,611 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-18 18:24:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 18:24:25,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-18 18:24:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:24:25,619 INFO L225 Difference]: With dead ends: 1743 [2020-08-18 18:24:25,620 INFO L226 Difference]: Without dead ends: 958 [2020-08-18 18:24:25,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-08-18 18:24:25,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-18 18:24:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-18 18:24:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-18 18:24:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-18 18:24:25,724 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-18 18:24:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:24:25,725 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-18 18:24:25,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 18:24:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-18 18:24:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 18:24:25,728 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:25,728 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:25,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 18:24:25,729 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-18 18:24:25,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:25,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144983060] [2020-08-18 18:24:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:25,945 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:25,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 18:24:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 18:24:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:26,246 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 18:24:26,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144983060] [2020-08-18 18:24:26,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:24:26,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 18:24:26,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630805780] [2020-08-18 18:24:26,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 18:24:26,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:26,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 18:24:26,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 18:24:26,251 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-18 18:24:26,431 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:27,097 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 18:24:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:24:34,031 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-18 18:24:34,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 18:24:34,032 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-18 18:24:34,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:24:34,039 INFO L225 Difference]: With dead ends: 1744 [2020-08-18 18:24:34,039 INFO L226 Difference]: Without dead ends: 959 [2020-08-18 18:24:34,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-08-18 18:24:34,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-18 18:24:34,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-18 18:24:34,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-18 18:24:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-18 18:24:34,130 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-18 18:24:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:24:34,130 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-18 18:24:34,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 18:24:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-18 18:24:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 18:24:34,132 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:34,133 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:34,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 18:24:34,133 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:34,133 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-18 18:24:34,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:34,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419714344] [2020-08-18 18:24:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,377 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:34,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 18:24:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 18:24:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-18 18:24:34,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419714344] [2020-08-18 18:24:34,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 18:24:34,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 18:24:34,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018610248] [2020-08-18 18:24:34,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 18:24:34,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:34,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 18:24:34,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 18:24:34,665 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-18 18:24:34,809 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:35,481 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 18:24:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:24:42,041 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-18 18:24:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 18:24:42,042 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-18 18:24:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:24:42,048 INFO L225 Difference]: With dead ends: 1745 [2020-08-18 18:24:42,048 INFO L226 Difference]: Without dead ends: 960 [2020-08-18 18:24:42,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-08-18 18:24:42,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-18 18:24:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-18 18:24:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-18 18:24:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-18 18:24:42,126 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-18 18:24:42,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:24:42,127 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-18 18:24:42,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 18:24:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-18 18:24:42,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 18:24:42,129 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:42,129 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:42,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 18:24:42,129 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:42,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:42,130 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-18 18:24:42,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:42,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277912924] [2020-08-18 18:24:42,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,357 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:42,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 18:24:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 18:24:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 18:24:42,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277912924] [2020-08-18 18:24:42,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:24:42,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 18:24:42,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968880793] [2020-08-18 18:24:42,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 18:24:42,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:42,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 18:24:42,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 18:24:42,493 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-18 18:24:42,653 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:43,326 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 18:24:47,557 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 18:24:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 18:24:54,880 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-18 18:24:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 18:24:54,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 18:24:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 18:24:54,891 INFO L225 Difference]: With dead ends: 2626 [2020-08-18 18:24:54,891 INFO L226 Difference]: Without dead ends: 1844 [2020-08-18 18:24:54,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2020-08-18 18:24:54,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-18 18:24:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-18 18:24:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-18 18:24:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-18 18:24:55,085 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-18 18:24:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 18:24:55,086 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-18 18:24:55,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 18:24:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-18 18:24:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 18:24:55,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 18:24:55,089 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 18:24:55,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 18:24:55,090 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 18:24:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 18:24:55,090 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-18 18:24:55,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 18:24:55,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670027787] [2020-08-18 18:24:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 18:24:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,386 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 18:24:55,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 18:24:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 18:24:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 18:24:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 18:24:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 18:24:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 18:24:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 18:24:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 18:24:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 18:24:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 18:24:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-18 18:24:55,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670027787] [2020-08-18 18:24:55,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 18:24:55,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 18:24:55,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247147513] [2020-08-18 18:24:55,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 18:24:55,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 18:24:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 18:24:55,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 18:24:55,570 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states. [2020-08-18 18:24:55,727 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 18:24:55,996 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 18:24:56,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-18 18:24:57,973 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-08-18 18:24:58,228 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 18:24:58,425 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 162