/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:27:22,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:27:22,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:27:22,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:27:22,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:27:22,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:27:22,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:27:22,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:27:22,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:27:22,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:27:22,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:27:22,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:27:22,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:27:22,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:27:22,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:27:22,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:27:22,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:27:22,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:27:22,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:27:22,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:27:22,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:27:22,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:27:22,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:27:22,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:27:22,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:27:22,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:27:22,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:27:22,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:27:22,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:27:22,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:27:22,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:27:22,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:27:22,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:27:22,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:27:22,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:27:22,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:27:22,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:27:22,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:27:22,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:27:22,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:27:22,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:27:22,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:27:22,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:27:22,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:27:22,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:27:22,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:27:22,360 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:27:22,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:27:22,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:27:22,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:27:22,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:27:22,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:27:22,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:27:22,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:27:22,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:27:22,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:27:22,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:27:22,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:27:22,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:27:22,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:27:22,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:27:22,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:27:22,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:27:22,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:27:22,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:27:22,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:27:22,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:27:22,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:27:22,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:27:22,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:27:22,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:27:22,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:27:22,800 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:27:22,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2020-12-22 13:27:22,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01ccf1b/d02bb17b8fa84c998517cd80c528ae63/FLAG59b35d77f [2020-12-22 13:27:24,242 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:27:24,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2020-12-22 13:27:24,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01ccf1b/d02bb17b8fa84c998517cd80c528ae63/FLAG59b35d77f [2020-12-22 13:27:24,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a01ccf1b/d02bb17b8fa84c998517cd80c528ae63 [2020-12-22 13:27:24,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:27:24,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:27:24,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:27:24,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:27:24,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:27:24,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:27:24" (1/1) ... [2020-12-22 13:27:24,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53359d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:24, skipping insertion in model container [2020-12-22 13:27:24,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:27:24" (1/1) ... [2020-12-22 13:27:24,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:27:25,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:27:25,949 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2020-12-22 13:27:25,950 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6675-6676] [2020-12-22 13:27:26,770 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i[206918,206931] [2020-12-22 13:27:34,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:27:35,076 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:27:35,285 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2020-12-22 13:27:35,286 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6675-6676] [2020-12-22 13:27:35,313 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i[206918,206931] [2020-12-22 13:27:36,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:27:38,557 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:27:38,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38 WrapperNode [2020-12-22 13:27:38,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:27:38,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:27:38,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:27:38,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:27:38,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:38,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:41,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:27:41,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:27:41,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:27:41,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:27:41,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:41,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:42,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:42,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:43,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:44,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:44,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... [2020-12-22 13:27:44,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:27:44,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:27:44,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:27:44,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:27:44,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 13:27:44,903 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2020-12-22 13:27:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2020-12-22 13:27:44,904 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2020-12-22 13:27:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2020-12-22 13:27:44,905 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2020-12-22 13:27:44,906 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2020-12-22 13:27:44,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2020-12-22 13:27:44,908 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2020-12-22 13:27:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2020-12-22 13:27:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:27:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:27:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2020-12-22 13:27:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2020-12-22 13:27:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:27:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 13:27:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2020-12-22 13:27:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2020-12-22 13:27:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2020-12-22 13:27:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2020-12-22 13:27:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:27:44,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:27:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:27:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 13:27:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2020-12-22 13:27:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2020-12-22 13:27:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2020-12-22 13:27:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2020-12-22 13:27:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2020-12-22 13:27:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2020-12-22 13:27:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:27:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:27:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:27:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:27:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2020-12-22 13:27:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2020-12-22 13:27:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2020-12-22 13:27:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2020-12-22 13:27:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2020-12-22 13:27:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2020-12-22 13:27:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:27:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2020-12-22 13:27:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2020-12-22 13:27:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2020-12-22 13:27:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2020-12-22 13:27:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2020-12-22 13:27:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2020-12-22 13:27:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2020-12-22 13:27:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2020-12-22 13:27:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2020-12-22 13:27:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2020-12-22 13:27:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2020-12-22 13:27:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2020-12-22 13:27:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2020-12-22 13:27:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2020-12-22 13:27:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2020-12-22 13:27:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2020-12-22 13:27:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2020-12-22 13:27:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2020-12-22 13:27:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2020-12-22 13:27:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2020-12-22 13:27:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2020-12-22 13:27:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2020-12-22 13:27:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2020-12-22 13:27:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2020-12-22 13:27:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:27:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:27:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2020-12-22 13:27:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2020-12-22 13:27:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:27:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:27:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:27:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:27:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2020-12-22 13:27:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2020-12-22 13:27:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2020-12-22 13:27:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2020-12-22 13:27:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2020-12-22 13:27:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2020-12-22 13:27:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2020-12-22 13:27:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2020-12-22 13:27:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:27:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:27:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:27:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:27:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:27:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2020-12-22 13:27:45,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2020-12-22 13:29:55,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:29:55,942 INFO L299 CfgBuilder]: Removed 10186 assume(true) statements. [2020-12-22 13:29:55,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:29:55 BoogieIcfgContainer [2020-12-22 13:29:55,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:29:55,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:29:55,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:29:55,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:29:55,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:27:24" (1/3) ... [2020-12-22 13:29:55,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6f4dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:29:55, skipping insertion in model container [2020-12-22 13:29:55,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:38" (2/3) ... [2020-12-22 13:29:55,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6f4dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:29:55, skipping insertion in model container [2020-12-22 13:29:55,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:29:55" (3/3) ... [2020-12-22 13:29:55,967 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2020-12-22 13:29:55,975 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:29:55,986 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 13:29:56,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 13:29:56,079 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:29:56,080 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:29:56,080 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:29:56,080 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:29:56,080 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:29:56,080 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:29:56,081 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:29:56,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:29:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 9857 states. [2020-12-22 13:29:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 13:29:56,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:29:56,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:29:56,308 INFO L429 AbstractCegarLoop]: === Iteration 1 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:29:56,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:29:56,316 INFO L82 PathProgramCache]: Analyzing trace with hash -942835593, now seen corresponding path program 1 times [2020-12-22 13:29:56,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:29:56,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905374248] [2020-12-22 13:29:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:29:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:29:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:29:59,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905374248] [2020-12-22 13:29:59,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:29:59,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:29:59,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572972195] [2020-12-22 13:29:59,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:29:59,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:29:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:29:59,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:29:59,345 INFO L87 Difference]: Start difference. First operand 9857 states. Second operand 3 states. [2020-12-22 13:30:00,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:00,610 INFO L93 Difference]: Finished difference Result 19736 states and 28308 transitions. [2020-12-22 13:30:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:30:00,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 13:30:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:00,736 INFO L225 Difference]: With dead ends: 19736 [2020-12-22 13:30:00,736 INFO L226 Difference]: Without dead ends: 9808 [2020-12-22 13:30:00,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9808 states. [2020-12-22 13:30:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9808 to 9808. [2020-12-22 13:30:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9808 states. [2020-12-22 13:30:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 13638 transitions. [2020-12-22 13:30:01,444 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 13638 transitions. Word has length 73 [2020-12-22 13:30:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:01,445 INFO L481 AbstractCegarLoop]: Abstraction has 9808 states and 13638 transitions. [2020-12-22 13:30:01,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:30:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 13638 transitions. [2020-12-22 13:30:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 13:30:01,482 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:01,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:01,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:30:01,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:01,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:01,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1807666124, now seen corresponding path program 1 times [2020-12-22 13:30:01,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:01,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620233984] [2020-12-22 13:30:01,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:30:03,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620233984] [2020-12-22 13:30:03,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:03,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:30:03,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105719764] [2020-12-22 13:30:03,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:30:03,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:03,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:30:03,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:03,617 INFO L87 Difference]: Start difference. First operand 9808 states and 13638 transitions. Second operand 3 states. [2020-12-22 13:30:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:05,153 INFO L93 Difference]: Finished difference Result 29234 states and 40688 transitions. [2020-12-22 13:30:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:30:05,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 13:30:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:05,335 INFO L225 Difference]: With dead ends: 29234 [2020-12-22 13:30:05,336 INFO L226 Difference]: Without dead ends: 19495 [2020-12-22 13:30:05,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19495 states. [2020-12-22 13:30:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19495 to 19308. [2020-12-22 13:30:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19308 states. [2020-12-22 13:30:06,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19308 states to 19308 states and 26923 transitions. [2020-12-22 13:30:06,215 INFO L78 Accepts]: Start accepts. Automaton has 19308 states and 26923 transitions. Word has length 75 [2020-12-22 13:30:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:06,216 INFO L481 AbstractCegarLoop]: Abstraction has 19308 states and 26923 transitions. [2020-12-22 13:30:06,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:30:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19308 states and 26923 transitions. [2020-12-22 13:30:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 13:30:06,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:06,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:06,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:30:06,243 INFO L429 AbstractCegarLoop]: === Iteration 3 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:06,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1725464067, now seen corresponding path program 1 times [2020-12-22 13:30:06,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:06,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878439721] [2020-12-22 13:30:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:30:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878439721] [2020-12-22 13:30:08,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:08,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:30:08,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573303691] [2020-12-22 13:30:08,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:30:08,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:08,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:30:08,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:08,257 INFO L87 Difference]: Start difference. First operand 19308 states and 26923 transitions. Second operand 3 states. [2020-12-22 13:30:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:10,544 INFO L93 Difference]: Finished difference Result 56354 states and 79001 transitions. [2020-12-22 13:30:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:30:10,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 13:30:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:10,768 INFO L225 Difference]: With dead ends: 56354 [2020-12-22 13:30:10,768 INFO L226 Difference]: Without dead ends: 37115 [2020-12-22 13:30:10,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37115 states. [2020-12-22 13:30:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37115 to 36633. [2020-12-22 13:30:12,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36633 states. [2020-12-22 13:30:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36633 states to 36633 states and 51534 transitions. [2020-12-22 13:30:12,371 INFO L78 Accepts]: Start accepts. Automaton has 36633 states and 51534 transitions. Word has length 77 [2020-12-22 13:30:12,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:12,374 INFO L481 AbstractCegarLoop]: Abstraction has 36633 states and 51534 transitions. [2020-12-22 13:30:12,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:30:12,374 INFO L276 IsEmpty]: Start isEmpty. Operand 36633 states and 51534 transitions. [2020-12-22 13:30:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 13:30:12,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:12,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:12,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:30:12,398 INFO L429 AbstractCegarLoop]: === Iteration 4 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:12,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash -358170467, now seen corresponding path program 1 times [2020-12-22 13:30:12,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:12,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649573794] [2020-12-22 13:30:12,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:30:14,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649573794] [2020-12-22 13:30:14,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:14,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:30:14,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873727239] [2020-12-22 13:30:14,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:30:14,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:14,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:30:14,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:14,285 INFO L87 Difference]: Start difference. First operand 36633 states and 51534 transitions. Second operand 3 states. [2020-12-22 13:30:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:17,623 INFO L93 Difference]: Finished difference Result 109239 states and 153624 transitions. [2020-12-22 13:30:17,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:30:17,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-12-22 13:30:17,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:18,303 INFO L225 Difference]: With dead ends: 109239 [2020-12-22 13:30:18,304 INFO L226 Difference]: Without dead ends: 72675 [2020-12-22 13:30:18,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72675 states. [2020-12-22 13:30:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72675 to 72461. [2020-12-22 13:30:20,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72461 states. [2020-12-22 13:30:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72461 states to 72461 states and 101930 transitions. [2020-12-22 13:30:21,715 INFO L78 Accepts]: Start accepts. Automaton has 72461 states and 101930 transitions. Word has length 81 [2020-12-22 13:30:21,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:21,715 INFO L481 AbstractCegarLoop]: Abstraction has 72461 states and 101930 transitions. [2020-12-22 13:30:21,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:30:21,715 INFO L276 IsEmpty]: Start isEmpty. Operand 72461 states and 101930 transitions. [2020-12-22 13:30:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 13:30:21,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:21,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:21,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:30:21,738 INFO L429 AbstractCegarLoop]: === Iteration 5 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:21,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:21,739 INFO L82 PathProgramCache]: Analyzing trace with hash 2084432441, now seen corresponding path program 1 times [2020-12-22 13:30:21,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:21,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958176291] [2020-12-22 13:30:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:30:23,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958176291] [2020-12-22 13:30:23,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:23,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:30:23,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23475676] [2020-12-22 13:30:23,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:30:23,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:23,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:30:23,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:23,436 INFO L87 Difference]: Start difference. First operand 72461 states and 101930 transitions. Second operand 3 states. [2020-12-22 13:30:27,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:30:27,525 INFO L93 Difference]: Finished difference Result 214103 states and 301294 transitions. [2020-12-22 13:30:27,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:30:27,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-12-22 13:30:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:30:28,628 INFO L225 Difference]: With dead ends: 214103 [2020-12-22 13:30:28,628 INFO L226 Difference]: Without dead ends: 141711 [2020-12-22 13:30:28,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141711 states. [2020-12-22 13:30:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141711 to 141401. [2020-12-22 13:30:32,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141401 states. [2020-12-22 13:30:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141401 states to 141401 states and 199094 transitions. [2020-12-22 13:30:33,807 INFO L78 Accepts]: Start accepts. Automaton has 141401 states and 199094 transitions. Word has length 94 [2020-12-22 13:30:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:30:33,807 INFO L481 AbstractCegarLoop]: Abstraction has 141401 states and 199094 transitions. [2020-12-22 13:30:33,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:30:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 141401 states and 199094 transitions. [2020-12-22 13:30:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 13:30:33,827 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:30:33,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:30:33,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:30:33,827 INFO L429 AbstractCegarLoop]: === Iteration 6 === [stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:30:33,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:30:33,828 INFO L82 PathProgramCache]: Analyzing trace with hash -922728435, now seen corresponding path program 1 times [2020-12-22 13:30:33,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:30:33,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104139654] [2020-12-22 13:30:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:30:34,814 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-22 13:30:34,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232226092] [2020-12-22 13:30:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:30:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:30:45,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 18827 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 13:30:45,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:30:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:30:45,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104139654] [2020-12-22 13:30:45,488 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-22 13:30:45,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232226092] [2020-12-22 13:30:45,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:30:45,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:30:45,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83270474] [2020-12-22 13:30:45,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:30:45,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:30:45,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:30:45,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:30:45,490 INFO L87 Difference]: Start difference. First operand 141401 states and 199094 transitions. Second operand 3 states.