/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 05:59:09,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 05:59:09,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 05:59:09,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 05:59:09,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 05:59:09,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 05:59:09,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 05:59:09,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 05:59:09,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 05:59:10,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 05:59:10,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 05:59:10,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 05:59:10,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 05:59:10,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 05:59:10,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 05:59:10,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 05:59:10,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 05:59:10,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 05:59:10,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 05:59:10,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 05:59:10,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 05:59:10,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 05:59:10,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 05:59:10,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 05:59:10,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 05:59:10,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 05:59:10,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 05:59:10,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 05:59:10,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 05:59:10,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 05:59:10,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 05:59:10,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 05:59:10,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 05:59:10,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 05:59:10,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 05:59:10,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 05:59:10,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 05:59:10,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 05:59:10,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 05:59:10,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 05:59:10,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 05:59:10,057 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 [2020-08-22 05:59:10,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 05:59:10,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 05:59:10,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 05:59:10,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 05:59:10,096 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 05:59:10,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 05:59:10,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 05:59:10,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 05:59:10,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 05:59:10,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 05:59:10,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 05:59:10,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 05:59:10,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 05:59:10,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 05:59:10,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 05:59:10,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 05:59:10,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 05:59:10,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 05:59:10,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 05:59:10,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 05:59:10,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 05:59:10,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 05:59:10,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 05:59:10,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 05:59:10,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 05:59:10,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 05:59:10,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 05:59:10,101 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-08-22 05:59:10,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 05:59:10,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 05:59:10,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 05:59:10,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 05:59:10,427 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 05:59:10,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-22 05:59:10,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92ed3a1f/5522527c13f546e9b46afe8f05b0c06b/FLAGc47960e69 [2020-08-22 05:59:11,319 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 05:59:11,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-08-22 05:59:11,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92ed3a1f/5522527c13f546e9b46afe8f05b0c06b/FLAGc47960e69 [2020-08-22 05:59:11,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f92ed3a1f/5522527c13f546e9b46afe8f05b0c06b [2020-08-22 05:59:11,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 05:59:11,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 05:59:11,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 05:59:11,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 05:59:11,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 05:59:11,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:59:11" (1/1) ... [2020-08-22 05:59:11,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54776ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:11, skipping insertion in model container [2020-08-22 05:59:11,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:59:11" (1/1) ... [2020-08-22 05:59:11,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 05:59:11,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 05:59:13,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:59:13,819 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 05:59:14,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 05:59:14,537 INFO L208 MainTranslator]: Completed translation [2020-08-22 05:59:14,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14 WrapperNode [2020-08-22 05:59:14,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 05:59:14,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 05:59:14,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 05:59:14,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 05:59:14,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (1/1) ... [2020-08-22 05:59:14,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 05:59:14,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 05:59:14,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 05:59:14,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 05:59:14,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (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 [2020-08-22 05:59:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 05:59:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 05:59:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-22 05:59:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-22 05:59:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-22 05:59:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-22 05:59:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-22 05:59:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-08-22 05:59:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-08-22 05:59:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-08-22 05:59:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-22 05:59:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-22 05:59:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-22 05:59:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-22 05:59:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-22 05:59:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-08-22 05:59:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-22 05:59:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-08-22 05:59:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-08-22 05:59:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-08-22 05:59:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-08-22 05:59:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-08-22 05:59:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-08-22 05:59:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-08-22 05:59:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-08-22 05:59:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-08-22 05:59:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-08-22 05:59:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-08-22 05:59:14,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-22 05:59:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-22 05:59:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-22 05:59:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-22 05:59:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-08-22 05:59:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-08-22 05:59:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-08-22 05:59:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-08-22 05:59:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-08-22 05:59:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-08-22 05:59:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-08-22 05:59:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-08-22 05:59:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-08-22 05:59:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-08-22 05:59:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-08-22 05:59:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-08-22 05:59:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-08-22 05:59:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-08-22 05:59:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-08-22 05:59:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-08-22 05:59:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-08-22 05:59:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-08-22 05:59:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-08-22 05:59:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 05:59:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-08-22 05:59:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-08-22 05:59:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-08-22 05:59:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-08-22 05:59:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-08-22 05:59:14,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-08-22 05:59:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-08-22 05:59:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-08-22 05:59:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-08-22 05:59:14,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-08-22 05:59:14,924 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-08-22 05:59:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-08-22 05:59:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-08-22 05:59:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-08-22 05:59:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-08-22 05:59:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-08-22 05:59:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-08-22 05:59:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-08-22 05:59:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-08-22 05:59:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-08-22 05:59:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-08-22 05:59:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-08-22 05:59:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-08-22 05:59:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-08-22 05:59:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-08-22 05:59:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-08-22 05:59:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-08-22 05:59:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-08-22 05:59:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-08-22 05:59:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-08-22 05:59:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-08-22 05:59:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-08-22 05:59:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-08-22 05:59:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-08-22 05:59:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-08-22 05:59:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-08-22 05:59:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-08-22 05:59:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-08-22 05:59:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-08-22 05:59:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-08-22 05:59:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-08-22 05:59:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-08-22 05:59:14,947 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-08-22 05:59:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-22 05:59:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-08-22 05:59:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-08-22 05:59:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 05:59:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-08-22 05:59:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 05:59:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-08-22 05:59:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-22 05:59:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-08-22 05:59:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-08-22 05:59:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-22 05:59:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-22 05:59:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-22 05:59:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-08-22 05:59:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-08-22 05:59:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-22 05:59:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-22 05:59:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-08-22 05:59:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-08-22 05:59:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-08-22 05:59:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-08-22 05:59:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 05:59:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-22 05:59:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-08-22 05:59:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-08-22 05:59:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-08-22 05:59:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-08-22 05:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-08-22 05:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-08-22 05:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-08-22 05:59:14,970 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-08-22 05:59:14,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-08-22 05:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-08-22 05:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-08-22 05:59:14,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-08-22 05:59:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-08-22 05:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-08-22 05:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-08-22 05:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-08-22 05:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-08-22 05:59:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-08-22 05:59:14,977 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-08-22 05:59:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-08-22 05:59:14,979 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 05:59:14,980 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-08-22 05:59:14,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-08-22 05:59:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 05:59:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 05:59:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 05:59:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-08-22 05:59:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-08-22 05:59:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-08-22 05:59:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-08-22 05:59:15,805 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-22 05:59:17,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 05:59:17,323 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 05:59:17,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:59:17 BoogieIcfgContainer [2020-08-22 05:59:17,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 05:59:17,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 05:59:17,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 05:59:17,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 05:59:17,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 05:59:11" (1/3) ... [2020-08-22 05:59:17,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82d7051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:59:17, skipping insertion in model container [2020-08-22 05:59:17,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:59:14" (2/3) ... [2020-08-22 05:59:17,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82d7051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:59:17, skipping insertion in model container [2020-08-22 05:59:17,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:59:17" (3/3) ... [2020-08-22 05:59:17,343 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 [2020-08-22 05:59:17,354 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 05:59:17,363 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 05:59:17,378 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 05:59:17,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 05:59:17,406 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 05:59:17,406 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 05:59:17,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 05:59:17,406 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 05:59:17,406 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 05:59:17,406 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 05:59:17,406 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 05:59:17,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states. [2020-08-22 05:59:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-22 05:59:17,459 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:59:17,460 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] [2020-08-22 05:59:17,461 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:59:17,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:59:17,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1976669306, now seen corresponding path program 1 times [2020-08-22 05:59:17,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:59:17,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057423078] [2020-08-22 05:59:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:59:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,277 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 05:59:18,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:59:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:59:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:59:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:59:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:59:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 05:59:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 05:59:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 05:59:18,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057423078] [2020-08-22 05:59:18,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:59:18,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 05:59:18,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253092283] [2020-08-22 05:59:18,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 05:59:18,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:59:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 05:59:18,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 05:59:18,632 INFO L87 Difference]: Start difference. First operand 1042 states. Second operand 8 states. [2020-08-22 05:59:18,863 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-22 05:59:19,682 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-22 05:59:19,883 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-08-22 05:59:27,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:59:27,227 INFO L93 Difference]: Finished difference Result 1795 states and 2309 transitions. [2020-08-22 05:59:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 05:59:27,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-08-22 05:59:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:59:27,264 INFO L225 Difference]: With dead ends: 1795 [2020-08-22 05:59:27,264 INFO L226 Difference]: Without dead ends: 957 [2020-08-22 05:59:27,274 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 [2020-08-22 05:59:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2020-08-22 05:59:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 808. [2020-08-22 05:59:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2020-08-22 05:59:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 992 transitions. [2020-08-22 05:59:27,469 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 992 transitions. Word has length 61 [2020-08-22 05:59:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:59:27,469 INFO L479 AbstractCegarLoop]: Abstraction has 808 states and 992 transitions. [2020-08-22 05:59:27,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 05:59:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 992 transitions. [2020-08-22 05:59:27,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-08-22 05:59:27,475 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:59:27,476 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] [2020-08-22 05:59:27,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 05:59:27,477 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:59:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:59:27,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1517192589, now seen corresponding path program 1 times [2020-08-22 05:59:27,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:59:27,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179840918] [2020-08-22 05:59:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:59:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,801 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 05:59:27,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:59:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:59:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:59:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:59:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:59:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:28,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 05:59:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:28,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:28,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-22 05:59:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 05:59:28,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179840918] [2020-08-22 05:59:28,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:59:28,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 05:59:28,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090900130] [2020-08-22 05:59:28,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 05:59:28,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:59:28,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 05:59:28,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 05:59:28,084 INFO L87 Difference]: Start difference. First operand 808 states and 992 transitions. Second operand 9 states. [2020-08-22 05:59:28,282 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-22 05:59:28,902 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-22 05:59:35,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:59:35,300 INFO L93 Difference]: Finished difference Result 1743 states and 2185 transitions. [2020-08-22 05:59:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 05:59:35,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-08-22 05:59:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:59:35,310 INFO L225 Difference]: With dead ends: 1743 [2020-08-22 05:59:35,310 INFO L226 Difference]: Without dead ends: 958 [2020-08-22 05:59:35,314 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 [2020-08-22 05:59:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-08-22 05:59:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 809. [2020-08-22 05:59:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-08-22 05:59:35,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 993 transitions. [2020-08-22 05:59:35,428 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 993 transitions. Word has length 62 [2020-08-22 05:59:35,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:59:35,429 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 993 transitions. [2020-08-22 05:59:35,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 05:59:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 993 transitions. [2020-08-22 05:59:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 05:59:35,432 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:59:35,433 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] [2020-08-22 05:59:35,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 05:59:35,433 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:59:35,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:59:35,434 INFO L82 PathProgramCache]: Analyzing trace with hash -158316250, now seen corresponding path program 2 times [2020-08-22 05:59:35,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:59:35,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210013222] [2020-08-22 05:59:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:59:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,686 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 05:59:35,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:59:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:59:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:59:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:59:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:59:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 05:59:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 05:59:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 05:59:35,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210013222] [2020-08-22 05:59:35,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:59:35,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 05:59:35,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610570267] [2020-08-22 05:59:35,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 05:59:35,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:59:35,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 05:59:35,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-22 05:59:35,942 INFO L87 Difference]: Start difference. First operand 809 states and 993 transitions. Second operand 10 states. [2020-08-22 05:59:36,135 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-22 05:59:36,763 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-22 05:59:44,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:59:44,253 INFO L93 Difference]: Finished difference Result 1744 states and 2186 transitions. [2020-08-22 05:59:44,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 05:59:44,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-08-22 05:59:44,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:59:44,261 INFO L225 Difference]: With dead ends: 1744 [2020-08-22 05:59:44,261 INFO L226 Difference]: Without dead ends: 959 [2020-08-22 05:59:44,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-08-22 05:59:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2020-08-22 05:59:44,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 810. [2020-08-22 05:59:44,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2020-08-22 05:59:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 994 transitions. [2020-08-22 05:59:44,365 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 994 transitions. Word has length 63 [2020-08-22 05:59:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:59:44,365 INFO L479 AbstractCegarLoop]: Abstraction has 810 states and 994 transitions. [2020-08-22 05:59:44,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 05:59:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 994 transitions. [2020-08-22 05:59:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 05:59:44,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:59:44,368 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] [2020-08-22 05:59:44,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 05:59:44,368 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:59:44,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:59:44,369 INFO L82 PathProgramCache]: Analyzing trace with hash -982822701, now seen corresponding path program 3 times [2020-08-22 05:59:44,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:59:44,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658889323] [2020-08-22 05:59:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:59:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,606 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 05:59:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:59:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:59:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:59:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:59:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:59:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 05:59:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 05:59:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 05:59:44,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658889323] [2020-08-22 05:59:44,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 05:59:44,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 05:59:44,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794716701] [2020-08-22 05:59:44,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 05:59:44,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:59:44,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 05:59:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 05:59:44,829 INFO L87 Difference]: Start difference. First operand 810 states and 994 transitions. Second operand 11 states. [2020-08-22 05:59:45,025 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-22 05:59:45,694 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-08-22 05:59:52,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 05:59:52,491 INFO L93 Difference]: Finished difference Result 1745 states and 2187 transitions. [2020-08-22 05:59:52,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 05:59:52,492 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2020-08-22 05:59:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 05:59:52,500 INFO L225 Difference]: With dead ends: 1745 [2020-08-22 05:59:52,500 INFO L226 Difference]: Without dead ends: 960 [2020-08-22 05:59:52,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-08-22 05:59:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2020-08-22 05:59:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 811. [2020-08-22 05:59:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-08-22 05:59:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 995 transitions. [2020-08-22 05:59:52,585 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 995 transitions. Word has length 64 [2020-08-22 05:59:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 05:59:52,585 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 995 transitions. [2020-08-22 05:59:52,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 05:59:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 995 transitions. [2020-08-22 05:59:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 05:59:52,588 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 05:59:52,588 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] [2020-08-22 05:59:52,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 05:59:52,588 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 05:59:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 05:59:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash -772718906, now seen corresponding path program 4 times [2020-08-22 05:59:52,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 05:59:52,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134293673] [2020-08-22 05:59:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 05:59:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,844 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 05:59:52,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 05:59:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 05:59:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 05:59:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 05:59:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 05:59:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 05:59:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 05:59:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-22 05:59:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 05:59:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-22 05:59:52,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134293673] [2020-08-22 05:59:52,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 05:59:52,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 05:59:52,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763271523] [2020-08-22 05:59:52,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 05:59:52,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 05:59:52,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 05:59:52,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 05:59:52,994 INFO L87 Difference]: Start difference. First operand 811 states and 995 transitions. Second operand 7 states. [2020-08-22 05:59:53,157 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-08-22 05:59:53,876 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-08-22 05:59:58,388 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-08-22 06:00:06,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:00:06,256 INFO L93 Difference]: Finished difference Result 2626 states and 3310 transitions. [2020-08-22 06:00:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:00:06,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-22 06:00:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:00:06,267 INFO L225 Difference]: With dead ends: 2626 [2020-08-22 06:00:06,268 INFO L226 Difference]: Without dead ends: 1844 [2020-08-22 06:00:06,271 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 [2020-08-22 06:00:06,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-08-22 06:00:06,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1556. [2020-08-22 06:00:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-08-22 06:00:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 1915 transitions. [2020-08-22 06:00:06,456 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 1915 transitions. Word has length 65 [2020-08-22 06:00:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:00:06,456 INFO L479 AbstractCegarLoop]: Abstraction has 1556 states and 1915 transitions. [2020-08-22 06:00:06,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:00:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 1915 transitions. [2020-08-22 06:00:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 06:00:06,460 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:00:06,460 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] [2020-08-22 06:00:06,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:00:06,461 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:00:06,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:00:06,461 INFO L82 PathProgramCache]: Analyzing trace with hash 350102478, now seen corresponding path program 1 times [2020-08-22 06:00:06,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:00:06,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436707480] [2020-08-22 06:00:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:00:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,796 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-08-22 06:00:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:00:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:00:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:00:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:00:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 06:00:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:00:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 06:00:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:00:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:00:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-22 06:00:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:00:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-08-22 06:00:07,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436707480] [2020-08-22 06:00:07,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:00:07,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 06:00:07,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708225802] [2020-08-22 06:00:07,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:00:07,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:00:07,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:00:07,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:00:07,021 INFO L87 Difference]: Start difference. First operand 1556 states and 1915 transitions. Second operand 10 states.