/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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:16:42,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:16:42,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:16:42,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:16:42,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:16:42,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:16:42,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:16:42,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:16:42,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:16:42,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:16:42,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:16:42,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:16:42,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:16:42,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:16:42,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:16:42,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:16:42,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:16:42,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:16:42,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:16:42,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:16:42,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:16:42,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:16:42,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:16:42,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:16:42,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:16:42,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:16:42,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:16:42,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:16:42,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:16:42,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:16:42,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:16:42,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:16:42,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:16:42,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:16:42,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:16:42,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:16:42,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:16:42,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:16:42,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:16:42,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:16:42,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:16:42,453 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:16:42,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:16:42,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:16:42,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:16:42,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:16:42,515 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:16:42,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:16:42,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:16:42,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:16:42,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:16:42,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:16:42,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:16:42,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:16:42,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:16:42,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:16:42,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:16:42,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:16:42,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:16:42,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:16:42,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:16:42,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:16:42,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:16:42,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:16:42,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:16:42,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:16:42,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:16:42,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:16:42,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:16:43,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:16:43,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:16:43,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:16:43,040 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:16:43,045 INFO L432 ainManager$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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 16:16:43,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd21e332/5d80fc45882247aebe5d06fa47dc54aa/FLAGeed0da287 [2020-12-22 16:16:44,731 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:16:44,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 16:16:44,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd21e332/5d80fc45882247aebe5d06fa47dc54aa/FLAGeed0da287 [2020-12-22 16:16:45,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdd21e332/5d80fc45882247aebe5d06fa47dc54aa [2020-12-22 16:16:45,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:16:45,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:16:45,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:16:45,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:16:45,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:16:45,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:16:45" (1/1) ... [2020-12-22 16:16:45,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e38c27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:45, skipping insertion in model container [2020-12-22 16:16:45,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:16:45" (1/1) ... [2020-12-22 16:16:45,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:16:45,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:16:56,402 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2020-12-22 16:16:56,417 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2020-12-22 16:16:56,418 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2020-12-22 16:16:56,419 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2020-12-22 16:16:56,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:16:56,750 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:16:57,610 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2020-12-22 16:16:57,611 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2020-12-22 16:16:57,612 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2020-12-22 16:16:57,613 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-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2020-12-22 16:16:57,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:16:59,937 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:16:59,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59 WrapperNode [2020-12-22 16:16:59,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:16:59,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:16:59,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:16:59,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:16:59,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:00,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:02,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:17:02,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:17:02,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:17:02,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:17:02,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:02,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:03,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:03,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:05,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:05,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:05,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (1/1) ... [2020-12-22 16:17:06,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:17:06,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:17:06,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:17:06,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:17:06,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (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 16:17:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2020-12-22 16:17:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2020-12-22 16:17:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2020-12-22 16:17:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2020-12-22 16:17:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2020-12-22 16:17:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2020-12-22 16:17:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2020-12-22 16:17:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2020-12-22 16:17:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:17:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:17:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2020-12-22 16:17:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2020-12-22 16:17:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:17:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 16:17:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2020-12-22 16:17:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2020-12-22 16:17:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2020-12-22 16:17:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2020-12-22 16:17:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:17:06,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:17:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:17:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 16:17:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2020-12-22 16:17:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2020-12-22 16:17:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2020-12-22 16:17:06,328 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2020-12-22 16:17:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2020-12-22 16:17:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2020-12-22 16:17:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:17:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:17:06,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:17:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:17:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2020-12-22 16:17:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2020-12-22 16:17:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2020-12-22 16:17:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2020-12-22 16:17:06,330 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2020-12-22 16:17:06,330 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2020-12-22 16:17:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:17:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2020-12-22 16:17:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2020-12-22 16:17:06,331 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2020-12-22 16:17:06,331 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2020-12-22 16:17:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2020-12-22 16:17:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2020-12-22 16:17:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2020-12-22 16:17:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2020-12-22 16:17:06,332 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2020-12-22 16:17:06,332 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2020-12-22 16:17:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:17:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2020-12-22 16:17:06,333 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2020-12-22 16:17:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:17:06,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:17:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2020-12-22 16:17:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2020-12-22 16:17:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2020-12-22 16:17:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2020-12-22 16:17:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2020-12-22 16:17:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2020-12-22 16:17:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2020-12-22 16:17:06,336 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2020-12-22 16:17:06,336 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2020-12-22 16:17:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2020-12-22 16:17:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2020-12-22 16:17:06,337 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2020-12-22 16:17:06,337 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2020-12-22 16:17:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2020-12-22 16:17:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:17:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:17:06,338 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2020-12-22 16:17:06,338 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2020-12-22 16:17:06,339 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 16:17:06,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 16:17:06,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:17:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:17:06,341 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2020-12-22 16:17:06,341 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2020-12-22 16:17:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2020-12-22 16:17:06,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2020-12-22 16:17:06,342 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2020-12-22 16:17:06,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2020-12-22 16:17:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2020-12-22 16:17:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2020-12-22 16:17:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 16:17:06,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 16:17:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:17:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:17:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:17:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2020-12-22 16:17:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2020-12-22 16:19:14,237 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0; [2020-12-22 16:19:14,238 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:19:14,238 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 16:19:14,238 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 16:19:14,238 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:19:14,239 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0; [2020-12-22 16:19:14,239 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0; [2020-12-22 16:19:14,239 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0; [2020-12-22 16:19:14,239 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 16:19:14,240 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:19:14,241 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2020-12-22 16:19:14,242 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:19:14,242 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2020-12-22 16:19:14,243 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0; [2020-12-22 16:19:14,243 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2020-12-22 16:19:14,244 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0; [2020-12-22 16:19:14,244 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0; [2020-12-22 16:19:14,244 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 16:19:14,245 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:19:14,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:19:14,565 INFO L299 CfgBuilder]: Removed 10579 assume(true) statements. [2020-12-22 16:19:14,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:19:14 BoogieIcfgContainer [2020-12-22 16:19:14,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:19:14,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:19:14,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:19:14,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:19:14,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:16:45" (1/3) ... [2020-12-22 16:19:14,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4337c124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:19:14, skipping insertion in model container [2020-12-22 16:19:14,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:16:59" (2/3) ... [2020-12-22 16:19:14,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4337c124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:19:14, skipping insertion in model container [2020-12-22 16:19:14,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:19:14" (3/3) ... [2020-12-22 16:19:14,595 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2020-12-22 16:19:14,605 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:19:14,618 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-22 16:19:14,641 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 16:19:14,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:19:14,720 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:19:14,720 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:19:14,720 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:19:14,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:19:14,721 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:19:14,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:19:14,721 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:19:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states. [2020-12-22 16:19:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-12-22 16:19:14,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:19:14,895 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] [2020-12-22 16:19:14,896 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:19:14,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:19:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1811077279, now seen corresponding path program 1 times [2020-12-22 16:19:14,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:19:14,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583946805] [2020-12-22 16:19:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:19:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:19:17,731 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 16:19:17,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583946805] [2020-12-22 16:19:17,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:19:17,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:19:17,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138040899] [2020-12-22 16:19:17,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:19:17,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:19:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:19:17,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:19:17,763 INFO L87 Difference]: Start difference. First operand 10930 states. Second operand 3 states. [2020-12-22 16:19:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:19:21,769 INFO L93 Difference]: Finished difference Result 31022 states and 43529 transitions. [2020-12-22 16:19:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:19:21,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2020-12-22 16:19:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:19:21,984 INFO L225 Difference]: With dead ends: 31022 [2020-12-22 16:19:21,984 INFO L226 Difference]: Without dead ends: 20300 [2020-12-22 16:19:22,079 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 16:19:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20300 states. [2020-12-22 16:19:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20300 to 20294. [2020-12-22 16:19:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20294 states. [2020-12-22 16:19:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 27833 transitions. [2020-12-22 16:19:23,010 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 27833 transitions. Word has length 254 [2020-12-22 16:19:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:19:23,017 INFO L481 AbstractCegarLoop]: Abstraction has 20294 states and 27833 transitions. [2020-12-22 16:19:23,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:19:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 27833 transitions. [2020-12-22 16:19:23,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-12-22 16:19:23,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:19:23,041 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] [2020-12-22 16:19:23,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:19:23,042 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:19:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:19:23,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1799677888, now seen corresponding path program 1 times [2020-12-22 16:19:23,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:19:23,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733530240] [2020-12-22 16:19:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:19:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:19:25,134 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 16:19:25,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733530240] [2020-12-22 16:19:25,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:19:25,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:19:25,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362716423] [2020-12-22 16:19:25,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:19:25,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:19:25,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:19:25,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:19:25,141 INFO L87 Difference]: Start difference. First operand 20294 states and 27833 transitions. Second operand 3 states. [2020-12-22 16:19:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:19:29,149 INFO L93 Difference]: Finished difference Result 49623 states and 68294 transitions. [2020-12-22 16:19:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:19:29,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-12-22 16:19:29,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:19:29,326 INFO L225 Difference]: With dead ends: 49623 [2020-12-22 16:19:29,326 INFO L226 Difference]: Without dead ends: 29973 [2020-12-22 16:19:29,411 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 16:19:29,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2020-12-22 16:19:30,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 29945. [2020-12-22 16:19:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29945 states. [2020-12-22 16:19:30,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29945 states to 29945 states and 41142 transitions. [2020-12-22 16:19:30,850 INFO L78 Accepts]: Start accepts. Automaton has 29945 states and 41142 transitions. Word has length 273 [2020-12-22 16:19:30,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:19:30,851 INFO L481 AbstractCegarLoop]: Abstraction has 29945 states and 41142 transitions. [2020-12-22 16:19:30,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:19:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 29945 states and 41142 transitions. [2020-12-22 16:19:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-12-22 16:19:30,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:19:30,870 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] [2020-12-22 16:19:30,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:19:30,871 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:19:30,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:19:30,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1932344816, now seen corresponding path program 1 times [2020-12-22 16:19:30,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:19:30,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858527337] [2020-12-22 16:19:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:19:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:19:33,403 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-22 16:19:33,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-12-22 16:19:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:19:33,610 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 16:19:33,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858527337] [2020-12-22 16:19:33,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:19:33,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 16:19:33,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257354892] [2020-12-22 16:19:33,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:19:33,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:19:33,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:19:33,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:19:33,614 INFO L87 Difference]: Start difference. First operand 29945 states and 41142 transitions. Second operand 4 states. [2020-12-22 16:19:39,252 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 85