/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 21:40:08,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 21:40:08,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 21:40:08,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 21:40:08,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 21:40:08,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 21:40:08,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 21:40:08,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 21:40:08,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 21:40:08,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 21:40:08,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 21:40:08,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 21:40:08,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 21:40:08,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 21:40:08,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 21:40:08,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 21:40:08,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 21:40:08,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 21:40:08,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 21:40:08,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 21:40:08,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 21:40:08,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 21:40:08,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 21:40:08,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 21:40:08,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 21:40:08,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 21:40:08,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 21:40:08,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 21:40:08,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 21:40:08,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 21:40:08,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 21:40:08,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 21:40:08,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 21:40:08,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 21:40:08,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 21:40:08,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 21:40:08,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 21:40:08,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 21:40:08,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 21:40:08,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 21:40:08,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 21:40:08,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 21:40:08,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 21:40:08,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 21:40:08,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 21:40:08,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 21:40:08,699 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 21:40:08,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 21:40:08,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 21:40:08,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 21:40:08,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 21:40:08,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 21:40:08,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 21:40:08,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 21:40:08,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 21:40:08,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 21:40:08,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 21:40:08,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 21:40:08,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 21:40:08,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 21:40:08,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:40:08,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 21:40:08,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 21:40:08,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 21:40:08,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 21:40:08,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 21:40:08,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 21:40:08,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 21:40:08,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 21:40:08,705 INFO L138 SettingsManager]: * To the following directory=dump/ 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 21:40:09,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 21:40:09,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 21:40:09,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 21:40:09,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 21:40:09,128 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 21:40:09,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2020-10-28 21:40:09,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3226f8fb1/bafcec28b2b34148bd519729cf1f2c1c/FLAGb9bced353 [2020-10-28 21:40:10,269 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 21:40:10,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2020-10-28 21:40:10,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3226f8fb1/bafcec28b2b34148bd519729cf1f2c1c/FLAGb9bced353 [2020-10-28 21:40:10,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3226f8fb1/bafcec28b2b34148bd519729cf1f2c1c [2020-10-28 21:40:10,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 21:40:10,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 21:40:10,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 21:40:10,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 21:40:10,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 21:40:10,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:10" (1/1) ... [2020-10-28 21:40:10,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3753b7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:10, skipping insertion in model container [2020-10-28 21:40:10,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:40:10" (1/1) ... [2020-10-28 21:40:10,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 21:40:10,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 21:40:12,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:40:12,873 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 21:40:13,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:40:13,751 INFO L208 MainTranslator]: Completed translation [2020-10-28 21:40:13,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13 WrapperNode [2020-10-28 21:40:13,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 21:40:13,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 21:40:13,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 21:40:13,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 21:40:13,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:13,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:13,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:13,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:14,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:14,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:14,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... [2020-10-28 21:40:14,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 21:40:14,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 21:40:14,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 21:40:14,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 21:40:14,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:40:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 21:40:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 21:40:14,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2020-10-28 21:40:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_be16p [2020-10-28 21:40:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 21:40:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-28 21:40:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-28 21:40:14,244 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure prefetchw [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2020-10-28 21:40:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_and_test [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2020-10-28 21:40:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-10-28 21:40:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-10-28 21:40:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 21:40:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 21:40:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2020-10-28 21:40:14,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 21:40:14,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure prefetch_range [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2020-10-28 21:40:14,249 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_color_depth [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_base16bpp [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_base8bpp [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2020-10-28 21:40:14,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16be [2020-10-28 21:40:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_lfsr16 [2020-10-28 21:40:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2020-10-28 21:40:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_vid_cmds [2020-10-28 21:40:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2020-10-28 21:40:14,251 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_mmap [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_trim_hline [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_compress_hline [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_write [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_copyarea [2020-10-28 21:40:14,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_imageblit [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_fillrect [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_dpy_deferred_io [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_edid [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_ioctl [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_setcolreg [2020-10-28 21:40:14,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_open [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_release_urb_work [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2020-10-28 21:40:14,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_dummy_render [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_realloc_framebuffer [2020-10-28 21:40:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_bytes_rendered_show [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_bytes_identical_show [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_bytes_sent_show [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_cpu_kcycles_used_show [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2020-10-28 21:40:14,256 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_select_std_channel [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_parse_vendor_descriptor [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_probe [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2020-10-28 21:40:14,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_driver_init [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_driver_exit [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_urb_list [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_alloc_urb_list [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2020-10-28 21:40:14,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-28 21:40:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_11 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2020-10-28 21:40:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_13 [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_14 [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:40:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_fb_info [2020-10-28 21:40:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_fb_info [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_fb_info [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:40:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2020-10-28 21:40:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 21:40:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __usb_get_extra_descriptor [2020-10-28 21:40:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 21:40:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_bin_file [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_bin_file [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure down_timeout [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2020-10-28 21:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_alloc_cmap [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_cleanup [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_init [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2020-10-28 21:40:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_best_display [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_find_nearest_mode [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_sys_read [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_sys_write [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_var_to_videomode [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_alloc [2020-10-28 21:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dlfb_ops_probe_3 [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dlfb_ops_release_3 [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_edid_attr_probe_2 [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_edid_attr_release_2 [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 21:40:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure register_framebuffer [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_pfn_range [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sys_copyarea [2020-10-28 21:40:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sys_fillrect [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure sys_imageblit [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_framebuffer [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_framebuffer [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-28 21:40:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-28 21:40:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_to_pfn [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 21:40:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 21:40:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 21:40:14,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_be16p [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 21:40:14,278 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-28 21:40:14,279 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure prefetchw [2020-10-28 21:40:14,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_and_test [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-28 21:40:14,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2020-10-28 21:40:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_11 [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:40:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_backlight_device [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 21:40:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2020-10-28 21:40:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 21:40:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_bin_file [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_bin_file [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2020-10-28 21:40:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure down_timeout [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure up [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure __usb_get_extra_descriptor [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 21:40:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_13 [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_14 [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 21:40:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_to_pfn [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure remap_pfn_range [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 21:40:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure sys_fillrect [2020-10-28 21:40:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure sys_copyarea [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure sys_imageblit [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure fb_sys_read [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure fb_sys_write [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure register_framebuffer [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_framebuffer [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_framebuffer [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_init [2020-10-28 21:40:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_cleanup [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_alloc [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_var_to_videomode [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2020-10-28 21:40:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_nearest_mode [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fb_find_best_display [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fb_alloc_cmap [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure prefetch_range [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2020-10-28 21:40:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_alloc_urb_list [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_urb_list [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_color_depth [2020-10-28 21:40:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_base16bpp [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_base8bpp [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16be [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_lfsr16 [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_vid_cmds [2020-10-28 21:40:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_mmap [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_trim_hline [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_compress_hline [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2020-10-28 21:40:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_write [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_copyarea [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_imageblit [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_fillrect [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_dpy_deferred_io [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_edid [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_ioctl [2020-10-28 21:40:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_setcolreg [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_open [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_release_urb_work [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2020-10-28 21:40:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_dummy_render [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_realloc_framebuffer [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_bytes_rendered_show [2020-10-28 21:40:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_bytes_identical_show [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_bytes_sent_show [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_cpu_kcycles_used_show [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_select_std_channel [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_parse_vendor_descriptor [2020-10-28 21:40:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_probe [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_driver_init [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_driver_exit [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_edid_attr_probe_2 [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dlfb_ops_probe_3 [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_edid_attr_release_2 [2020-10-28 21:40:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dlfb_ops_release_3 [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2020-10-28 21:40:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_fb_info [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_fb_info [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_fb_info [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:40:14,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 21:40:14,307 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 21:40:14,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 21:40:27,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 21:40:27,025 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 21:40:27,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:27 BoogieIcfgContainer [2020-10-28 21:40:27,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 21:40:27,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 21:40:27,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 21:40:27,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 21:40:27,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:40:10" (1/3) ... [2020-10-28 21:40:27,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5504d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:40:27, skipping insertion in model container [2020-10-28 21:40:27,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:40:13" (2/3) ... [2020-10-28 21:40:27,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5504d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:40:27, skipping insertion in model container [2020-10-28 21:40:27,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:40:27" (3/3) ... [2020-10-28 21:40:27,044 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--video--udlfb.ko-main.cil.out.i [2020-10-28 21:40:27,058 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 21:40:27,066 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 21:40:27,081 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 21:40:27,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 21:40:27,131 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 21:40:27,132 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 21:40:27,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 21:40:27,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 21:40:27,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 21:40:27,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 21:40:27,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 21:40:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states. [2020-10-28 21:40:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-28 21:40:27,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:40:27,221 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] [2020-10-28 21:40:27,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:40:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:40:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1269373419, now seen corresponding path program 1 times [2020-10-28 21:40:27,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:40:27,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253850927] [2020-10-28 21:40:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:40:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:28,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:32,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:32,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-28 21:40:32,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:40:32,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-28 21:40:32,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:32,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:40:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:40:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 21:40:32,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 21:40:36,175 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification that was a NOOP. DAG size: 724 [2020-10-28 21:40:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:40:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:36,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:36,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:36,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:40:36,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:40:36,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-28 21:40:36,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:36,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:36,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:40:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:40:36,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:40:36,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:40:36,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:40:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:36,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:36,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:36,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:40:36,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:40:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 21:40:36,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:36,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:40:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:40:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:40:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:40:36,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:40:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:36,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:36,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:36,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 21:40:36,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:40:36,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 21:40:36,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:36,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:36,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:40:36,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:40:36,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 21:40:36,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:40:36,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:40:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:36,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:36,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 21:40:36,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:40:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:40:36,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:36,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:36,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:40:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:40:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:40:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:40:36,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:40:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:40:36,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:40:36,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:40:36,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:40:36,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:40:36,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:40:36,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:40:36,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:40:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:40:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:40:36,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:40:36,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:40:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:40:36,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253850927] [2020-10-28 21:40:36,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:40:36,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:40:36,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550244685] [2020-10-28 21:40:36,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:40:36,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:40:36,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:40:36,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:40:36,905 INFO L87 Difference]: Start difference. First operand 1685 states. Second operand 6 states. [2020-10-28 21:40:43,009 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification that was a NOOP. DAG size: 726 [2020-10-28 21:41:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:41:31,950 INFO L93 Difference]: Finished difference Result 3270 states and 4355 transitions. [2020-10-28 21:41:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 21:41:31,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-10-28 21:41:31,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:41:31,989 INFO L225 Difference]: With dead ends: 3270 [2020-10-28 21:41:31,989 INFO L226 Difference]: Without dead ends: 1780 [2020-10-28 21:41:32,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 21:41:32,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2020-10-28 21:41:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1484. [2020-10-28 21:41:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1484 states. [2020-10-28 21:41:32,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1893 transitions. [2020-10-28 21:41:32,854 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1893 transitions. Word has length 36 [2020-10-28 21:41:32,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:41:32,855 INFO L481 AbstractCegarLoop]: Abstraction has 1484 states and 1893 transitions. [2020-10-28 21:41:32,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:41:32,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1893 transitions. [2020-10-28 21:41:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 21:41:32,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:41:32,860 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] [2020-10-28 21:41:32,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 21:41:32,861 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:41:32,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:41:32,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1546575420, now seen corresponding path program 1 times [2020-10-28 21:41:32,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:41:32,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268808646] [2020-10-28 21:41:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:41:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:33,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:36,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:36,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 21:41:36,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:41:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3767 [2020-10-28 21:41:36,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:36,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:41:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:41:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 21:41:36,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:41:40,171 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 724 [2020-10-28 21:41:40,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:41:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:40,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:40,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:40,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:41:40,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:41:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-10-28 21:41:40,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:40,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:41:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:41:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:41:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:41:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:41:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:40,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:41:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:41:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 21:41:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:40,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:41:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:41:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:41:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:41:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:41:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:40,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:40,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:40,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 21:41:40,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:41:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 21:41:40,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:40,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:41:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:41:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 21:41:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:41:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:41:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:40,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:40,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:40,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 21:41:40,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:41:40,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:41:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:41:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:41:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:41:40,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:41:40,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:41:40,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:41:40,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:41:40,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:41:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:41:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:41:40,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268808646] [2020-10-28 21:41:40,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:41:40,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:41:40,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726006919] [2020-10-28 21:41:40,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:41:40,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:41:40,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:41:40,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:41:40,758 INFO L87 Difference]: Start difference. First operand 1484 states and 1893 transitions. Second operand 6 states. [2020-10-28 21:41:47,813 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification that was a NOOP. DAG size: 726 [2020-10-28 21:42:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:42:36,179 INFO L93 Difference]: Finished difference Result 1775 states and 2338 transitions. [2020-10-28 21:42:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 21:42:36,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-28 21:42:36,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:42:36,195 INFO L225 Difference]: With dead ends: 1775 [2020-10-28 21:42:36,195 INFO L226 Difference]: Without dead ends: 1770 [2020-10-28 21:42:36,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 21:42:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2020-10-28 21:42:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1483. [2020-10-28 21:42:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1483 states. [2020-10-28 21:42:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1891 transitions. [2020-10-28 21:42:36,830 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1891 transitions. Word has length 37 [2020-10-28 21:42:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:42:36,831 INFO L481 AbstractCegarLoop]: Abstraction has 1483 states and 1891 transitions. [2020-10-28 21:42:36,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 21:42:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1891 transitions. [2020-10-28 21:42:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 21:42:36,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:42:36,834 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] [2020-10-28 21:42:36,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 21:42:36,834 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:42:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:42:36,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1545225672, now seen corresponding path program 1 times [2020-10-28 21:42:36,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:42:36,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798576190] [2020-10-28 21:42:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:42:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:36,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:37,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:40,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3673 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:42:40,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:42:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 21:42:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:42:44,066 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 724 [2020-10-28 21:42:44,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:42:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:44,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:44,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:44,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:42:44,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:42:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-28 21:42:44,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:44,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:42:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:42:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:42:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:42:44,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:42:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:44,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:44,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:42:44,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:42:44,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:42:44,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:44,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:42:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:42:44,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:42:44,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:42:44,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:42:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:44,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:44,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:44,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 21:42:44,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:42:44,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 21:42:44,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:44,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:42:44,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:42:44,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 21:42:44,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:42:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:42:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:44,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:44,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 21:42:44,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:42:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:42:44,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:44,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:42:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:42:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:42:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:42:44,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 21:42:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:42:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:42:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:42:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:42:44,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:42:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:42:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:42:44,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:42:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:42:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:42:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:42:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:42:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:42:44,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798576190] [2020-10-28 21:42:44,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:42:44,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 21:42:44,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752447869] [2020-10-28 21:42:44,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 21:42:44,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:42:44,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 21:42:44,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 21:42:44,600 INFO L87 Difference]: Start difference. First operand 1483 states and 1891 transitions. Second operand 6 states. [2020-10-28 21:42:54,014 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 726