/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=DEEPEST --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 [2020-10-28 02:17:49,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 02:17:49,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 02:17:49,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 02:17:49,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 02:17:49,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 02:17:49,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 02:17:49,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 02:17:49,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 02:17:49,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 02:17:49,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 02:17:49,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 02:17:49,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 02:17:49,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 02:17:49,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 02:17:49,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 02:17:49,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 02:17:49,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 02:17:49,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 02:17:49,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 02:17:49,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 02:17:49,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 02:17:49,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 02:17:49,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 02:17:49,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 02:17:49,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 02:17:49,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 02:17:49,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 02:17:49,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 02:17:49,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 02:17:49,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 02:17:49,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 02:17:49,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 02:17:49,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 02:17:49,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 02:17:49,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 02:17:49,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 02:17:49,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 02:17:49,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 02:17:49,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 02:17:49,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 02:17:49,210 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 02:17:49,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 02:17:49,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 02:17:49,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 02:17:49,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 02:17:49,263 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 02:17:49,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 02:17:49,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 02:17:49,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 02:17:49,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 02:17:49,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 02:17:49,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 02:17:49,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 02:17:49,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 02:17:49,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 02:17:49,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 02:17:49,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 02:17:49,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 02:17:49,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 02:17:49,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 02:17:49,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 02:17:49,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 02:17:49,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 02:17:49,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 02:17:49,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 02:17:49,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 02:17:49,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 02:17:49,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 02:17:49,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 02:17:49,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 02:17:49,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 02:17:49,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 02:17:49,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 02:17:49,749 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 02:17:49,750 INFO L432 ainManager$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 [2020-10-28 02:17:49,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11e063ac7/2efb6c85f2a04a7cb3ce6eb46d13ba64/FLAG5f7f01f2e [2020-10-28 02:17:50,866 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 02:17:50,867 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 [2020-10-28 02:17:50,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11e063ac7/2efb6c85f2a04a7cb3ce6eb46d13ba64/FLAG5f7f01f2e [2020-10-28 02:17:51,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11e063ac7/2efb6c85f2a04a7cb3ce6eb46d13ba64 [2020-10-28 02:17:51,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 02:17:51,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 02:17:51,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 02:17:51,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 02:17:51,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 02:17:51,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:17:51" (1/1) ... [2020-10-28 02:17:51,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1215524d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:51, skipping insertion in model container [2020-10-28 02:17:51,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:17:51" (1/1) ... [2020-10-28 02:17:51,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 02:17:51,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 02:17:52,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:17:52,854 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 02:17:53,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:17:53,517 INFO L208 MainTranslator]: Completed translation [2020-10-28 02:17:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53 WrapperNode [2020-10-28 02:17:53,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 02:17:53,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 02:17:53,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 02:17:53,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 02:17:53,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (1/1) ... [2020-10-28 02:17:53,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 02:17:53,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 02:17:53,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 02:17:53,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 02:17:53,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (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 02:17:53,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 02:17:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 02:17:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-28 02:17:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:17:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 02:17:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-28 02:17:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-28 02:17:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:17:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-28 02:17:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-28 02:17:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 02:17:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-28 02:17:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-28 02:17:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-28 02:17:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 02:17:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-28 02:17:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-28 02:17:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 02:17:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-28 02:17:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 02:17:53,921 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-28 02:17:53,922 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-28 02:17:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-28 02:17:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-28 02:17:53,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-28 02:17:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-28 02:17:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-28 02:17:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-28 02:17:53,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-28 02:17:53,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-28 02:17:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-28 02:17:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-28 02:17:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-28 02:17:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-28 02:17:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-28 02:17:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-28 02:17:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-28 02:17:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-28 02:17:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-28 02:17:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-28 02:17:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-28 02:17:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-28 02:17:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-28 02:17:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-28 02:17:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-28 02:17:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-28 02:17:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-28 02:17:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 02:17:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-28 02:17:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-28 02:17:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-28 02:17:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 02:17:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 02:17:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2020-10-28 02:17:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 02:17:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 02:17:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 02:17:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 02:17:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 02:17:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-28 02:17:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-28 02:17:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-28 02:17:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-28 02:17:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-28 02:17:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-28 02:17:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-28 02:17:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 02:17:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-28 02:17:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 02:17:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-28 02:17:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 02:17:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 02:17:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 02:17:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-28 02:17:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-28 02:17:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-28 02:17:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-28 02:17:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-28 02:17:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-28 02:17:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 02:17:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 02:17:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 02:17:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-28 02:17:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-28 02:17:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-28 02:17:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-28 02:17:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-28 02:17:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-28 02:17:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 02:17:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-28 02:17:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-28 02:17:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-28 02:17:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-28 02:17:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-28 02:17:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 02:17:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 02:17:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 02:17:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 02:17:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 02:17:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 02:17:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-28 02:17:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-28 02:17:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-28 02:17:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-28 02:17:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-28 02:17:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-28 02:17:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-28 02:17:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 02:17:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-28 02:17:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 02:17:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 02:17:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-28 02:17:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-28 02:17:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-28 02:17:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-28 02:17:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-28 02:17:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 02:17:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-28 02:17:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-28 02:17:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2020-10-28 02:17:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-28 02:17:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 02:17:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-28 02:17:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-28 02:17:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-28 02:17:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-28 02:17:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-28 02:17:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 02:17:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-28 02:17:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-28 02:17:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 02:17:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 02:17:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 02:17:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 02:17:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 02:17:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 02:17:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 02:17:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 02:17:55,656 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 02:18:34,448 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 02:18:34,449 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 02:18:34,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:18:34 BoogieIcfgContainer [2020-10-28 02:18:34,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 02:18:34,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 02:18:34,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 02:18:34,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 02:18:34,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:17:51" (1/3) ... [2020-10-28 02:18:34,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e3d018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:18:34, skipping insertion in model container [2020-10-28 02:18:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:17:53" (2/3) ... [2020-10-28 02:18:34,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e3d018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:18:34, skipping insertion in model container [2020-10-28 02:18:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:18:34" (3/3) ... [2020-10-28 02:18:34,462 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-28 02:18:34,473 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 02:18:34,480 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 02:18:34,493 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 02:18:34,529 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 02:18:34,529 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 02:18:34,529 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 02:18:34,529 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 02:18:34,529 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 02:18:34,529 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 02:18:34,530 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 02:18:34,530 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 02:18:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states. [2020-10-28 02:18:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 02:18:34,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:18:34,586 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] [2020-10-28 02:18:34,586 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:18:34,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:18:34,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1541063575, now seen corresponding path program 1 times [2020-10-28 02:18:34,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:18:34,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387599973] [2020-10-28 02:18:34,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:18:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:18:35,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:18:40,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:18:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 02:18:40,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:18:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5184 [2020-10-28 02:18:40,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:18:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 02:18:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 02:18:40,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 02:18:40,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 02:18:45,101 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification that was a NOOP. DAG size: 823 [2020-10-28 02:18:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:18:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:18:45,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:18:47,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:18:47,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:18:47,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:18:47,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1920 [2020-10-28 02:18:47,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:18:47,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:18:47,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:18:47,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:18:47,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:18:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:18:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:18:47,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:18:47,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:18:47,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 02:18:47,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:18:47,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 02:18:47,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:18:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:18:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:18:47,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 02:18:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:18:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 02:18:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:18:47,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:18:47,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:18:47,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 02:18:47,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:18:47,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:18:47,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:18:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:18:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:18:47,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 02:18:47,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:18:47,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 02:18:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:18:47,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:18:47,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:18:47,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:18:47,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 02:18:47,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:18:47,384 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 02:18:47,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387599973] [2020-10-28 02:18:47,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:18:47,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 02:18:47,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480061585] [2020-10-28 02:18:47,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 02:18:47,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:18:47,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 02:18:47,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 02:18:47,409 INFO L87 Difference]: Start difference. First operand 1546 states. Second operand 5 states. [2020-10-28 02:18:54,327 WARN L193 SmtUtils]: Spent 4.64 s on a formula simplification that was a NOOP. DAG size: 825 [2020-10-28 02:20:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:20:19,887 INFO L93 Difference]: Finished difference Result 5023 states and 7305 transitions. [2020-10-28 02:20:19,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 02:20:19,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-28 02:20:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:20:19,946 INFO L225 Difference]: With dead ends: 5023 [2020-10-28 02:20:19,947 INFO L226 Difference]: Without dead ends: 3506 [2020-10-28 02:20:19,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 02:20:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2020-10-28 02:20:21,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 2661. [2020-10-28 02:20:21,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2020-10-28 02:20:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3656 transitions. [2020-10-28 02:20:21,226 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3656 transitions. Word has length 28 [2020-10-28 02:20:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:20:21,227 INFO L481 AbstractCegarLoop]: Abstraction has 2661 states and 3656 transitions. [2020-10-28 02:20:21,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 02:20:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3656 transitions. [2020-10-28 02:20:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 02:20:21,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:20:21,229 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] [2020-10-28 02:20:21,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 02:20:21,230 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:20:21,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:20:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1702998059, now seen corresponding path program 1 times [2020-10-28 02:20:21,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:20:21,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460949397] [2020-10-28 02:20:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:20:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:20:21,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:20:26,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:20:26,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 02:20:26,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:20:26,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5302 [2020-10-28 02:20:26,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:20:26,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 02:20:26,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 02:20:26,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 02:20:26,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:20:31,191 WARN L193 SmtUtils]: Spent 4.24 s on a formula simplification that was a NOOP. DAG size: 823 [2020-10-28 02:20:31,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:20:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:20:31,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:20:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1599 [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:20:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:20:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:20:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:20:33,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:20:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:20:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:20:33,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:20:33,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:20:33,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 02:20:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:20:33,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 02:20:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:20:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:20:33,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:20:33,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 02:20:33,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:20:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 02:20:33,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:20:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:20:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:20:33,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 02:20:33,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:20:33,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 02:20:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:20:33,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:20:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:20:33,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:20:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 02:20:33,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:20:33,150 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 02:20:33,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460949397] [2020-10-28 02:20:33,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:20:33,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 02:20:33,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885086345] [2020-10-28 02:20:33,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 02:20:33,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:20:33,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 02:20:33,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 02:20:33,154 INFO L87 Difference]: Start difference. First operand 2661 states and 3656 transitions. Second operand 5 states. [2020-10-28 02:20:39,705 WARN L193 SmtUtils]: Spent 4.31 s on a formula simplification that was a NOOP. DAG size: 825