/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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:31:11,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:31:11,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:31:11,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:31:11,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:31:11,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:31:11,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:31:11,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:31:11,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:31:11,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:31:11,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:31:11,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:31:11,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:31:11,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:31:11,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:31:11,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:31:11,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:31:11,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:31:11,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:31:11,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:31:11,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:31:11,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:31:11,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:31:11,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:31:11,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:31:11,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:31:11,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:31:11,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:31:11,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:31:11,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:31:11,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:31:11,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:31:11,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:31:11,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:31:11,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:31:11,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:31:11,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:31:11,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:31:11,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:31:11,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:31:11,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:31:11,471 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:31:11,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:31:11,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:31:11,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:31:11,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:31:11,504 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:31:11,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:31:11,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:31:11,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:31:11,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:31:11,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:31:11,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:31:11,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:31:11,506 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:31:11,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:31:11,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:31:11,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:31:11,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:31:11,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:31:11,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:31:11,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:31:11,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:31:11,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:31:11,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:31:11,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:31:11,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:31:11,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:31:11,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:31:12,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:31:12,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:31:12,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:31:12,021 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:31:12,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 15:31:12,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810e08e53/c88853c6a4ce48a093d63c3e8a11ef0d/FLAGfa0baf25d [2020-12-22 15:31:13,976 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:31:13,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 15:31:14,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810e08e53/c88853c6a4ce48a093d63c3e8a11ef0d/FLAGfa0baf25d [2020-12-22 15:31:14,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/810e08e53/c88853c6a4ce48a093d63c3e8a11ef0d [2020-12-22 15:31:14,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:31:14,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:31:14,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:31:14,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:31:14,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:31:14,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:14" (1/1) ... [2020-12-22 15:31:14,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772a9cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:14, skipping insertion in model container [2020-12-22 15:31:14,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:31:14" (1/1) ... [2020-12-22 15:31:14,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:31:14,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:31:31,203 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[887989,888002] [2020-12-22 15:31:31,212 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[888134,888147] [2020-12-22 15:31:31,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:31:31,545 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:31:32,366 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[887989,888002] [2020-12-22 15:31:32,367 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[888134,888147] [2020-12-22 15:31:32,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:31:35,655 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:31:35,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35 WrapperNode [2020-12-22 15:31:35,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:31:35,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:31:35,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:31:35,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:31:35,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:36,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:38,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:31:38,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:31:38,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:31:38,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:31:38,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:38,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:39,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:39,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:41,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:42,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:42,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (1/1) ... [2020-12-22 15:31:43,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:31:43,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:31:43,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:31:43,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:31:43,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (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 15:31:43,364 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2020-12-22 15:31:43,365 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2020-12-22 15:31:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2020-12-22 15:31:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2020-12-22 15:31:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2020-12-22 15:31:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2020-12-22 15:31:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2020-12-22 15:31:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2020-12-22 15:31:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2020-12-22 15:31:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2020-12-22 15:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:31:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:31:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2020-12-22 15:31:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2020-12-22 15:31:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2020-12-22 15:31:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2020-12-22 15:31:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:31:43,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:31:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:31:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 15:31:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2020-12-22 15:31:43,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2020-12-22 15:31:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2020-12-22 15:31:43,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2020-12-22 15:31:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2020-12-22 15:31:43,374 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2020-12-22 15:31:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:31:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:31:43,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:31:43,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:31:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2020-12-22 15:31:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2020-12-22 15:31:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2020-12-22 15:31:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2020-12-22 15:31:43,375 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2020-12-22 15:31:43,375 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2020-12-22 15:31:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:31:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2020-12-22 15:31:43,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2020-12-22 15:31:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2020-12-22 15:31:43,376 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2020-12-22 15:31:43,376 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2020-12-22 15:31:43,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2020-12-22 15:31:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2020-12-22 15:31:43,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2020-12-22 15:31:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2020-12-22 15:31:43,377 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2020-12-22 15:31:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:31:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2020-12-22 15:31:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2020-12-22 15:31:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:31:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:31:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2020-12-22 15:31:43,378 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2020-12-22 15:31:43,378 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2020-12-22 15:31:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2020-12-22 15:31:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2020-12-22 15:31:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2020-12-22 15:31:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2020-12-22 15:31:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2020-12-22 15:31:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2020-12-22 15:31:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2020-12-22 15:31:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2020-12-22 15:31:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2020-12-22 15:31:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2020-12-22 15:31:43,382 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2020-12-22 15:31:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:31:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 15:31:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2020-12-22 15:31:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2020-12-22 15:31:43,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:31:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:31:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:31:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:31:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2020-12-22 15:31:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2020-12-22 15:31:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2020-12-22 15:31:43,387 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2020-12-22 15:31:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2020-12-22 15:31:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2020-12-22 15:31:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2020-12-22 15:31:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2020-12-22 15:31:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:31:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:31:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:31:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:31:43,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 15:31:43,389 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2020-12-22 15:31:43,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2020-12-22 15:34:32,058 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2020-12-22 15:34:32,059 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:34:32,059 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 15:34:32,060 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 15:34:32,060 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:34:32,060 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2020-12-22 15:34:32,061 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2020-12-22 15:34:32,061 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2020-12-22 15:34:32,061 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2020-12-22 15:34:32,062 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2020-12-22 15:34:32,062 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2020-12-22 15:34:32,062 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2020-12-22 15:34:32,063 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2020-12-22 15:34:32,063 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 15:34:32,064 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 15:34:32,064 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:34:32,064 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2020-12-22 15:34:32,065 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:34:32,065 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2020-12-22 15:34:32,066 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2020-12-22 15:34:32,067 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2020-12-22 15:34:32,068 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2020-12-22 15:34:32,068 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2020-12-22 15:34:32,068 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:34:32,069 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:34:32,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:34:32,318 INFO L299 CfgBuilder]: Removed 11199 assume(true) statements. [2020-12-22 15:34:32,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:32 BoogieIcfgContainer [2020-12-22 15:34:32,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:34:32,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:34:32,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:34:32,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:34:32,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:31:14" (1/3) ... [2020-12-22 15:34:32,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aafabfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:32, skipping insertion in model container [2020-12-22 15:34:32,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:31:35" (2/3) ... [2020-12-22 15:34:32,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aafabfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:32, skipping insertion in model container [2020-12-22 15:34:32,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:32" (3/3) ... [2020-12-22 15:34:32,350 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 15:34:32,357 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:34:32,369 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 15:34:32,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 15:34:32,468 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:34:32,469 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:34:32,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:34:32,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:34:32,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:34:32,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:34:32,469 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:34:32,469 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:34:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 11419 states. [2020-12-22 15:34:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-12-22 15:34:32,730 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:32,732 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:32,732 INFO L429 AbstractCegarLoop]: === Iteration 1 === [stmmac_openErr3ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:32,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1684659612, now seen corresponding path program 1 times [2020-12-22 15:34:32,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:32,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645763992] [2020-12-22 15:34:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:36,903 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 15:34:36,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645763992] [2020-12-22 15:34:36,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:36,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:36,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726512134] [2020-12-22 15:34:36,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:36,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:36,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:36,930 INFO L87 Difference]: Start difference. First operand 11419 states. Second operand 3 states. [2020-12-22 15:34:41,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:41,149 INFO L93 Difference]: Finished difference Result 32475 states and 45517 transitions. [2020-12-22 15:34:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:41,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2020-12-22 15:34:41,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:41,325 INFO L225 Difference]: With dead ends: 32475 [2020-12-22 15:34:41,326 INFO L226 Difference]: Without dead ends: 21014 [2020-12-22 15:34:41,427 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 15:34:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2020-12-22 15:34:42,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 20994. [2020-12-22 15:34:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20994 states. [2020-12-22 15:34:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20994 states to 20994 states and 28762 transitions. [2020-12-22 15:34:42,669 INFO L78 Accepts]: Start accepts. Automaton has 20994 states and 28762 transitions. Word has length 314 [2020-12-22 15:34:42,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:34:42,677 INFO L481 AbstractCegarLoop]: Abstraction has 20994 states and 28762 transitions. [2020-12-22 15:34:42,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:34:42,678 INFO L276 IsEmpty]: Start isEmpty. Operand 20994 states and 28762 transitions. [2020-12-22 15:34:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-12-22 15:34:42,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:42,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:42,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:34:42,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [stmmac_openErr3ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:42,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:42,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1370892393, now seen corresponding path program 1 times [2020-12-22 15:34:42,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:42,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237526084] [2020-12-22 15:34:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:45,679 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 15:34:45,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237526084] [2020-12-22 15:34:45,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:45,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:45,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929364176] [2020-12-22 15:34:45,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:45,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:45,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:45,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:45,687 INFO L87 Difference]: Start difference. First operand 20994 states and 28762 transitions. Second operand 3 states. [2020-12-22 15:34:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:50,073 INFO L93 Difference]: Finished difference Result 61324 states and 84354 transitions. [2020-12-22 15:34:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:50,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2020-12-22 15:34:50,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:50,320 INFO L225 Difference]: With dead ends: 61324 [2020-12-22 15:34:50,321 INFO L226 Difference]: Without dead ends: 40974 [2020-12-22 15:34:50,435 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 15:34:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40974 states. [2020-12-22 15:34:51,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40974 to 40948. [2020-12-22 15:34:51,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40948 states.