/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 15:48:53,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 15:48:53,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 15:48:53,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 15:48:53,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 15:48:53,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 15:48:53,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 15:48:53,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 15:48:53,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 15:48:53,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 15:48:53,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 15:48:53,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 15:48:53,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 15:48:53,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 15:48:53,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 15:48:53,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 15:48:53,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 15:48:53,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 15:48:54,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 15:48:54,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 15:48:54,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 15:48:54,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 15:48:54,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 15:48:54,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 15:48:54,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 15:48:54,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 15:48:54,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 15:48:54,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 15:48:54,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 15:48:54,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 15:48:54,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 15:48:54,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 15:48:54,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 15:48:54,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 15:48:54,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 15:48:54,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 15:48:54,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 15:48:54,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 15:48:54,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 15:48:54,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 15:48:54,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 15:48:54,054 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 [2020-10-29 15:48:54,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 15:48:54,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 15:48:54,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 15:48:54,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 15:48:54,104 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 15:48:54,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 15:48:54,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 15:48:54,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 15:48:54,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 15:48:54,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 15:48:54,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 15:48:54,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 15:48:54,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 15:48:54,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 15:48:54,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 15:48:54,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 15:48:54,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 15:48:54,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 15:48:54,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 15:48:54,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 15:48:54,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 15:48:54,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 15:48:54,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 15:48:54,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 15:48:54,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 15:48:54,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 15:48:54,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-29 15:48:54,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 15:48:54,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 15:48:54,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 15:48:54,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 15:48:54,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 15:48:54,524 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 15:48:54,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-29 15:48:54,616 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbef6cf7e/8fbb68f915e444fcb8b40ea881074275/FLAG50e3974d6 [2020-10-29 15:48:55,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 15:48:55,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-29 15:48:55,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbef6cf7e/8fbb68f915e444fcb8b40ea881074275/FLAG50e3974d6 [2020-10-29 15:48:56,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbef6cf7e/8fbb68f915e444fcb8b40ea881074275 [2020-10-29 15:48:56,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 15:48:56,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 15:48:56,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 15:48:56,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 15:48:56,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 15:48:56,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:56" (1/1) ... [2020-10-29 15:48:56,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc5fc16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:56, skipping insertion in model container [2020-10-29 15:48:56,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:56" (1/1) ... [2020-10-29 15:48:56,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 15:48:56,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 15:48:57,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 15:48:57,773 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 15:48:58,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 15:48:58,464 INFO L208 MainTranslator]: Completed translation [2020-10-29 15:48:58,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58 WrapperNode [2020-10-29 15:48:58,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 15:48:58,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 15:48:58,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 15:48:58,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 15:48:58,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (1/1) ... [2020-10-29 15:48:58,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 15:48:58,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 15:48:58,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 15:48:58,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 15:48:58,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (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 [2020-10-29 15:48:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 15:48:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 15:48:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-29 15:48:58,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-29 15:48:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-29 15:48:58,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-29 15:48:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-29 15:48:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-29 15:48:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-29 15:48:58,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-29 15:48:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 15:48:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-29 15:48:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-29 15:48:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-29 15:48:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-29 15:48:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-29 15:48:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-29 15:48:58,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-29 15:48:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-29 15:48:58,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-29 15:48:58,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-29 15:48:58,951 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-29 15:48:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-29 15:48:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-29 15:48:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-29 15:48:58,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-29 15:48:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-29 15:48:58,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-29 15:48:58,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-29 15:48:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-29 15:48:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-29 15:48:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-29 15:48:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-29 15:48:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-29 15:48:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-29 15:48:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-29 15:48:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-29 15:48:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-29 15:48:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-29 15:48:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-29 15:48:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-29 15:48:58,961 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-29 15:48:58,961 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-29 15:48:58,961 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-29 15:48:58,961 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-29 15:48:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 15:48:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-29 15:48:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2020-10-29 15:48:58,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-29 15:48:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-29 15:48:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-29 15:48:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-29 15:48:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-29 15:48:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-29 15:48:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-29 15:48:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-29 15:48:58,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-29 15:48:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-29 15:48:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-29 15:48:58,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-29 15:48:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-29 15:48:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-29 15:48:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-29 15:48:58,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-29 15:48:58,970 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-29 15:48:58,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-29 15:48:58,972 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-29 15:48:58,972 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-29 15:48:58,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-29 15:48:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-29 15:48:58,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-29 15:48:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-29 15:48:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-29 15:48:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-29 15:48:58,977 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-29 15:48:58,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-29 15:48:58,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-29 15:48:58,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-29 15:48:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-29 15:48:58,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-29 15:48:58,981 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-29 15:48:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-29 15:48:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-29 15:48:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-29 15:48:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-29 15:48:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-29 15:48:58,987 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-29 15:48:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-29 15:48:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-29 15:48:58,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-29 15:48:58,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-29 15:48:58,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-29 15:48:58,991 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-29 15:48:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-29 15:48:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-29 15:48:58,994 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-29 15:48:58,995 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-29 15:48:58,996 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-29 15:48:58,997 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-29 15:48:58,998 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 15:48:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-29 15:48:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-29 15:48:59,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-29 15:48:59,002 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-29 15:48:59,004 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-29 15:48:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2020-10-29 15:48:59,007 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-29 15:48:59,008 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-29 15:48:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-29 15:48:59,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 15:48:59,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-29 15:48:59,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-29 15:48:59,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-29 15:48:59,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-29 15:48:59,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-29 15:48:59,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-29 15:48:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-29 15:48:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-29 15:48:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 15:48:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 15:48:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-29 15:48:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-29 15:49:00,306 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-29 15:49:34,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 15:49:34,786 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 15:49:34,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:49:34 BoogieIcfgContainer [2020-10-29 15:49:34,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 15:49:34,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 15:49:34,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 15:49:34,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 15:49:34,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:48:56" (1/3) ... [2020-10-29 15:49:34,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714c8fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:49:34, skipping insertion in model container [2020-10-29 15:49:34,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:58" (2/3) ... [2020-10-29 15:49:34,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714c8fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:49:34, skipping insertion in model container [2020-10-29 15:49:34,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:49:34" (3/3) ... [2020-10-29 15:49:34,804 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-29 15:49:34,818 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 15:49:34,826 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 15:49:34,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 15:49:34,895 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 15:49:34,895 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 15:49:34,895 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 15:49:34,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 15:49:34,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 15:49:34,895 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 15:49:34,895 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 15:49:34,895 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 15:49:34,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states. [2020-10-29 15:49:34,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 15:49:34,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 15:49:34,973 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] [2020-10-29 15:49:34,974 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 15:49:34,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 15:49:34,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1541063575, now seen corresponding path program 1 times [2020-10-29 15:49:34,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 15:49:34,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553868673] [2020-10-29 15:49:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 15:49:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:49:36,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:49:40,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:49:40,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-29 15:49:40,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:49:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-29 15:49:40,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:49:40,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:49:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 15:49:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 15:49:40,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 15:49:40,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 15:49:45,501 WARN L193 SmtUtils]: Spent 4.36 s on a formula simplification that was a NOOP. DAG size: 823 [2020-10-29 15:49:45,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 15:49:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:49:45,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:49:47,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:49:47,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 15:49:47,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:49:47,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1917 [2020-10-29 15:49:47,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:49:47,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:49:47,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:49:47,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:49:47,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 15:49:47,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:49:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 15:49:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:49:47,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:49:47,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:49:47,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 15:49:47,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:49:47,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 15:49:47,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:49:47,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:49:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:49:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:49:47,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 15:49:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 15:49:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 15:49:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:49:47,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:49:47,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:49:47,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 15:49:47,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:49:47,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 15:49:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:49:47,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:49:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:49:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:49:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 15:49:47,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:49:47,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 15:49:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:49:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:49:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:49:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 15:49:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:49:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 15:49:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:49:47,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:49:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 15:49:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 15:49:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 15:49:47,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553868673] [2020-10-29 15:49:47,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 15:49:47,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 15:49:47,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981902381] [2020-10-29 15:49:47,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 15:49:47,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 15:49:47,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 15:49:47,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 15:49:47,865 INFO L87 Difference]: Start difference. First operand 1546 states. Second operand 5 states. [2020-10-29 15:49:54,414 WARN L193 SmtUtils]: Spent 4.15 s on a formula simplification that was a NOOP. DAG size: 825 [2020-10-29 15:51:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 15:51:17,772 INFO L93 Difference]: Finished difference Result 5023 states and 7305 transitions. [2020-10-29 15:51:17,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 15:51:17,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 15:51:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 15:51:17,832 INFO L225 Difference]: With dead ends: 5023 [2020-10-29 15:51:17,832 INFO L226 Difference]: Without dead ends: 3506 [2020-10-29 15:51:17,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 15:51:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2020-10-29 15:51:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 2661. [2020-10-29 15:51:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2020-10-29 15:51:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3656 transitions. [2020-10-29 15:51:19,121 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3656 transitions. Word has length 28 [2020-10-29 15:51:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 15:51:19,121 INFO L481 AbstractCegarLoop]: Abstraction has 2661 states and 3656 transitions. [2020-10-29 15:51:19,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 15:51:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3656 transitions. [2020-10-29 15:51:19,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 15:51:19,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 15:51:19,124 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] [2020-10-29 15:51:19,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 15:51:19,124 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 15:51:19,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 15:51:19,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1702998059, now seen corresponding path program 1 times [2020-10-29 15:51:19,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 15:51:19,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796919703] [2020-10-29 15:51:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 15:51:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:51:19,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:51:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:51:24,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5158 [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 15:51:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 15:51:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 15:51:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:51:28,796 WARN L193 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 823 [2020-10-29 15:51:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 15:51:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:51:28,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:51:30,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:51:30,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 15:51:30,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:51:30,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1768 [2020-10-29 15:51:30,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:51:30,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:51:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:51:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:51:30,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 15:51:30,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:51:30,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 15:51:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:51:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:51:30,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:51:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 15:51:30,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:51:30,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 15:51:30,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:51:30,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:51:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:51:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:51:30,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 15:51:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:51:30,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 15:51:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:51:30,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:51:30,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:51:30,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:51:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:51:30,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 15:51:30,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 15:51:30,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 15:51:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 15:51:30,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 15:51:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 15:51:30,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 15:51:30,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 15:51:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 15:51:30,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 15:51:30,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 15:51:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 15:51:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 15:51:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 15:51:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 15:51:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 15:51:30,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796919703] [2020-10-29 15:51:30,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 15:51:30,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 15:51:30,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306029076] [2020-10-29 15:51:30,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 15:51:30,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 15:51:30,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 15:51:30,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 15:51:30,846 INFO L87 Difference]: Start difference. First operand 2661 states and 3656 transitions. Second operand 5 states. [2020-10-29 15:51:37,505 WARN L193 SmtUtils]: Spent 4.41 s on a formula simplification that was a NOOP. DAG size: 825