/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=NARROWEST -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 22:25:47,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 22:25:47,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 22:25:47,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 22:25:47,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 22:25:47,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 22:25:47,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 22:25:47,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 22:25:47,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 22:25:47,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 22:25:47,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 22:25:47,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 22:25:47,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 22:25:47,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 22:25:47,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 22:25:47,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 22:25:47,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 22:25:47,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 22:25:47,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 22:25:47,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 22:25:47,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 22:25:47,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 22:25:47,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 22:25:47,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 22:25:47,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 22:25:47,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 22:25:47,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 22:25:47,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 22:25:47,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 22:25:47,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 22:25:47,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 22:25:47,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 22:25:47,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 22:25:47,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 22:25:47,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 22:25:47,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 22:25:47,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 22:25:47,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 22:25:47,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 22:25:47,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 22:25:47,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 22:25:47,414 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 22:25:47,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 22:25:47,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 22:25:47,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 22:25:47,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 22:25:47,467 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 22:25:47,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 22:25:47,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 22:25:47,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 22:25:47,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 22:25:47,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 22:25:47,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 22:25:47,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 22:25:47,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 22:25:47,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 22:25:47,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 22:25:47,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 22:25:47,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 22:25:47,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 22:25:47,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 22:25:47,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 22:25:47,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 22:25:47,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 22:25:47,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 22:25:47,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 22:25:47,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 22:25:47,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 22:25:47,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 22:25:47,474 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=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 22:25:47,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 22:25:47,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 22:25:47,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 22:25:47,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 22:25:47,819 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 22:25:47,820 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 22:25:47,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/572cab374/2a3cbbcf0e1b4ea0aa004598250d89a8/FLAG7446506c7 [2020-08-18 22:25:48,681 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 22:25:48,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-18 22:25:48,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/572cab374/2a3cbbcf0e1b4ea0aa004598250d89a8/FLAG7446506c7 [2020-08-18 22:25:48,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/572cab374/2a3cbbcf0e1b4ea0aa004598250d89a8 [2020-08-18 22:25:48,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 22:25:48,782 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 22:25:48,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 22:25:48,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 22:25:48,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 22:25:48,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:25:48" (1/1) ... [2020-08-18 22:25:48,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4943b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:48, skipping insertion in model container [2020-08-18 22:25:48,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:25:48" (1/1) ... [2020-08-18 22:25:48,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 22:25:48,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 22:25:50,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:25:50,995 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 22:25:51,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 22:25:51,592 INFO L208 MainTranslator]: Completed translation [2020-08-18 22:25:51,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51 WrapperNode [2020-08-18 22:25:51,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 22:25:51,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 22:25:51,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 22:25:51,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 22:25:51,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (1/1) ... [2020-08-18 22:25:51,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 22:25:51,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 22:25:51,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 22:25:51,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 22:25:51,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (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 22:25:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 22:25:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 22:25:51,995 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 22:25:51,995 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 22:25:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 22:25:51,996 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 22:25:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 22:25:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-18 22:25:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-18 22:25:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-18 22:25:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 22:25:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 22:25:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 22:25:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 22:25:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 22:25:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-18 22:25:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 22:25:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-18 22:25:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-18 22:25:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-18 22:25:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-18 22:25:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-18 22:25:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-18 22:25:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-18 22:25:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 22:25:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 22:25:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 22:25:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-18 22:25:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-18 22:25:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-18 22:25:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-18 22:25:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-18 22:25:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-18 22:25:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-18 22:25:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-18 22:25:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-18 22:25:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-18 22:25:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-18 22:25:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-18 22:25:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-18 22:25:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-18 22:25:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 22:25:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-18 22:25:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-18 22:25:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-18 22:25:52,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-18 22:25:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-18 22:25:52,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-18 22:25:52,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-18 22:25:52,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-18 22:25:52,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-18 22:25:52,028 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-18 22:25:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-18 22:25:52,029 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-18 22:25:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-18 22:25:52,030 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-18 22:25:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-18 22:25:52,031 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-18 22:25:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-18 22:25:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-18 22:25:52,032 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-18 22:25:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-18 22:25:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-18 22:25:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-18 22:25:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-18 22:25:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-18 22:25:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-18 22:25:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-18 22:25:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-18 22:25:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-18 22:25:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-18 22:25:52,040 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-18 22:25:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-18 22:25:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-18 22:25:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-18 22:25:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-18 22:25:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-18 22:25:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-18 22:25:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-18 22:25:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-18 22:25:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-18 22:25:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-18 22:25:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-18 22:25:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 22:25:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 22:25:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-18 22:25:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-18 22:25:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 22:25:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-18 22:25:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 22:25:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-18 22:25:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-18 22:25:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-18 22:25:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-18 22:25:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-18 22:25:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-18 22:25:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 22:25:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 22:25:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 22:25:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 22:25:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-18 22:25:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-18 22:25:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-18 22:25:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-18 22:25:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-18 22:25:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-18 22:25:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-18 22:25:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-18 22:25:52,061 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 22:25:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-18 22:25:52,061 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 22:25:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-18 22:25:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-18 22:25:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-18 22:25:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-18 22:25:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-18 22:25:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 22:25:52,062 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 22:25:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-18 22:25:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 22:25:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 22:25:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 22:25:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-18 22:25:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-18 22:25:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-18 22:25:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-18 22:25:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-18 22:25:52,073 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-18 22:25:52,074 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-18 22:25:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-18 22:25:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-18 22:25:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-18 22:25:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-18 22:25:52,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-18 22:25:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-18 22:25:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-18 22:25:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-18 22:25:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-18 22:25:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-18 22:25:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-18 22:25:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-18 22:25:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-18 22:25:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-18 22:25:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-18 22:25:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-18 22:25:52,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-18 22:25:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-18 22:25:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-18 22:25:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-18 22:25:52,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-18 22:25:52,984 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 22:25:54,268 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 22:25:54,268 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-18 22:25:54,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:25:54 BoogieIcfgContainer [2020-08-18 22:25:54,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 22:25:54,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 22:25:54,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 22:25:54,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 22:25:54,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 10:25:48" (1/3) ... [2020-08-18 22:25:54,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32291ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:25:54, skipping insertion in model container [2020-08-18 22:25:54,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:25:51" (2/3) ... [2020-08-18 22:25:54,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32291ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 10:25:54, skipping insertion in model container [2020-08-18 22:25:54,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:25:54" (3/3) ... [2020-08-18 22:25:54,289 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 22:25:54,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 22:25:54,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 22:25:54,323 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 22:25:54,350 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 22:25:54,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 22:25:54,351 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 22:25:54,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 22:25:54,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 22:25:54,351 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 22:25:54,351 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 22:25:54,351 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 22:25:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-18 22:25:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 22:25:54,404 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:25:54,405 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 22:25:54,406 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:25:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:25:54,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-18 22:25:54,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:25:54,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382325103] [2020-08-18 22:25:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:25:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,262 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 22:25:55,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:25:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:25:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:25:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:25:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 22:25:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:25:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:25:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 22:25:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:25:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 22:25:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:25:55,532 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 22:25:55,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382325103] [2020-08-18 22:25:55,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:25:55,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 22:25:55,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572795849] [2020-08-18 22:25:55,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 22:25:55,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:25:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 22:25:55,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 22:25:55,560 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-18 22:25:55,842 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 22:25:56,512 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 22:25:56,720 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-18 22:26:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:26:04,077 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-18 22:26:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 22:26:04,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-18 22:26:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:26:04,131 INFO L225 Difference]: With dead ends: 1795 [2020-08-18 22:26:04,131 INFO L226 Difference]: Without dead ends: 957 [2020-08-18 22:26:04,141 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 22:26:04,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-18 22:26:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-18 22:26:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-18 22:26:04,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-18 22:26:04,346 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-18 22:26:04,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:26:04,346 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-18 22:26:04,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 22:26:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-18 22:26:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-18 22:26:04,352 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:26:04,352 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 22:26:04,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 22:26:04,353 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:26:04,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:26:04,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-18 22:26:04,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:26:04,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866114528] [2020-08-18 22:26:04,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:26:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,688 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 22:26:04,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:26:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:26:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:26:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 22:26:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:26:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 22:26:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 22:26:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:04,909 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 22:26:04,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866114528] [2020-08-18 22:26:04,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:26:04,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 22:26:04,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747413911] [2020-08-18 22:26:04,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 22:26:04,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:26:04,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 22:26:04,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 22:26:04,913 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-18 22:26:05,119 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 22:26:05,730 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 22:26:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:26:12,205 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-18 22:26:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 22:26:12,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-18 22:26:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:26:12,214 INFO L225 Difference]: With dead ends: 1743 [2020-08-18 22:26:12,214 INFO L226 Difference]: Without dead ends: 958 [2020-08-18 22:26:12,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-08-18 22:26:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-18 22:26:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-18 22:26:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-18 22:26:12,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-18 22:26:12,327 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-18 22:26:12,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:26:12,328 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-18 22:26:12,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 22:26:12,328 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-18 22:26:12,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 22:26:12,331 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:26:12,331 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 22:26:12,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 22:26:12,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:26:12,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:26:12,332 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-18 22:26:12,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:26:12,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411144255] [2020-08-18 22:26:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:26:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,588 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 22:26:12,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:26:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:26:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:26:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 22:26:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:26:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 22:26:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 22:26:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:12,876 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 22:26:12,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411144255] [2020-08-18 22:26:12,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:26:12,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 22:26:12,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129344144] [2020-08-18 22:26:12,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 22:26:12,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:26:12,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 22:26:12,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 22:26:12,881 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-18 22:26:13,101 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 22:26:13,830 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 22:26:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:26:21,350 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-18 22:26:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 22:26:21,351 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-18 22:26:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:26:21,358 INFO L225 Difference]: With dead ends: 1744 [2020-08-18 22:26:21,359 INFO L226 Difference]: Without dead ends: 959 [2020-08-18 22:26:21,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-08-18 22:26:21,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-18 22:26:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-18 22:26:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-18 22:26:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-18 22:26:21,484 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-18 22:26:21,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:26:21,487 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-18 22:26:21,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 22:26:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-18 22:26:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 22:26:21,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:26:21,492 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 22:26:21,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 22:26:21,492 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:26:21,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:26:21,493 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-18 22:26:21,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:26:21,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215958096] [2020-08-18 22:26:21,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:26:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,755 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 22:26:21,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:26:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:26:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:26:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 22:26:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:26:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 22:26:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 22:26:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:21,962 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 22:26:21,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215958096] [2020-08-18 22:26:21,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 22:26:21,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 22:26:21,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690448942] [2020-08-18 22:26:21,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 22:26:21,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:26:21,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 22:26:21,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 22:26:21,969 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-18 22:26:22,152 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 22:26:22,841 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-18 22:26:29,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 22:26:29,783 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-18 22:26:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 22:26:29,783 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-18 22:26:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 22:26:29,789 INFO L225 Difference]: With dead ends: 1745 [2020-08-18 22:26:29,789 INFO L226 Difference]: Without dead ends: 960 [2020-08-18 22:26:29,792 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 22:26:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-18 22:26:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-18 22:26:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-18 22:26:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-18 22:26:29,889 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-18 22:26:29,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 22:26:29,890 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-18 22:26:29,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 22:26:29,890 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-18 22:26:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 22:26:29,892 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 22:26:29,892 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 22:26:29,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 22:26:29,893 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 22:26:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 22:26:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-18 22:26:29,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 22:26:29,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345670534] [2020-08-18 22:26:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 22:26:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,181 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-18 22:26:30,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 22:26:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 22:26:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 22:26:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 22:26:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 22:26:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 22:26:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 22:26:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 22:26:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 22:26:30,332 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 22:26:30,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345670534] [2020-08-18 22:26:30,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 22:26:30,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 22:26:30,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449336172] [2020-08-18 22:26:30,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 22:26:30,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 22:26:30,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 22:26:30,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 22:26:30,336 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-18 22:26:30,485 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-18 22:26:31,102 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-18 22:26:35,907 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 156