/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=0.2 --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 -i ../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:01:51,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:01:51,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:01:51,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:01:51,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:01:51,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:01:51,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:01:51,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:01:51,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:01:51,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:01:51,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:01:51,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:01:51,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:01:51,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:01:51,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:01:51,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:01:51,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:01:51,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:01:51,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:01:51,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:01:51,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:01:51,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:01:51,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:01:51,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:01:51,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:01:51,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:01:51,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:01:51,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:01:51,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:01:51,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:01:51,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:01:51,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:01:51,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:01:51,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:01:51,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:01:51,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:01:51,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:01:51,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:01:51,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:01:51,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:01:51,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:01:51,691 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 [2020-10-15 06:01:51,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:01:51,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:01:51,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:01:51,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:01:51,714 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:01:51,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:01:51,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:01:51,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:01:51,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:01:51,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:01:51,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:01:51,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:01:51,716 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:01:51,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:01:51,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:01:51,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:01:51,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:01:51,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:01:51,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:01:51,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:01:51,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:01:51,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:01:51,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:01:51,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:01:51,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:01:51,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:01:51,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:01:51,719 INFO L138 SettingsManager]: * To the following directory=dump/ 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:01:52,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:01:52,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:01:52,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:01:52,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:01:52,059 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:01:52,059 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-15 06:01:52,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dfbde5ec/5d444855c75b406eb1f8456e15878f77/FLAG9a58c85f7 [2020-10-15 06:01:52,887 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:01:52,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-15 06:01:52,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dfbde5ec/5d444855c75b406eb1f8456e15878f77/FLAG9a58c85f7 [2020-10-15 06:01:53,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dfbde5ec/5d444855c75b406eb1f8456e15878f77 [2020-10-15 06:01:53,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:01:53,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:01:53,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:01:53,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:01:53,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:01:53,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:01:53" (1/1) ... [2020-10-15 06:01:53,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b87509a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:53, skipping insertion in model container [2020-10-15 06:01:53,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:01:53" (1/1) ... [2020-10-15 06:01:53,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:01:53,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:01:54,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:01:55,022 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:01:55,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:01:55,725 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:01:55,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55 WrapperNode [2020-10-15 06:01:55,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:01:55,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:01:55,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:01:55,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:01:55,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:55,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:55,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:55,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:55,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:56,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:56,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (1/1) ... [2020-10-15 06:01:56,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:01:56,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:01:56,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:01:56,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:01:56,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (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 [2020-10-15 06:01:56,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:01:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:01:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-15 06:01:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-15 06:01:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-15 06:01:56,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-15 06:01:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-15 06:01:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-15 06:01:56,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-15 06:01:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-15 06:01:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-15 06:01:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-15 06:01:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-15 06:01:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-15 06:01:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-15 06:01:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-15 06:01:56,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-15 06:01:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-15 06:01:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-15 06:01:56,198 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-15 06:01:56,199 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-15 06:01:56,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-15 06:01:56,201 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-15 06:01:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-15 06:01:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-15 06:01:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-15 06:01:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-15 06:01:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-15 06:01:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-15 06:01:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-15 06:01:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-15 06:01:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-15 06:01:56,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-15 06:01:56,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-15 06:01:56,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-15 06:01:56,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-15 06:01:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-15 06:01:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-15 06:01:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-15 06:01:56,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-15 06:01:56,207 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-15 06:01:56,207 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-15 06:01:56,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-15 06:01:56,207 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-15 06:01:56,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-15 06:01:56,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-15 06:01:56,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-15 06:01:56,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-15 06:01:56,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-15 06:01:56,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-15 06:01:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-15 06:01:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-15 06:01:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-15 06:01:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-15 06:01:56,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-15 06:01:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-15 06:01:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-15 06:01:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-15 06:01:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-15 06:01:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-15 06:01:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-15 06:01:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 06:01:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 06:01:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:01:56,216 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-15 06:01:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-15 06:01:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2020-10-15 06:01:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2020-10-15 06:01:56,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2020-10-15 06:01:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-15 06:01:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2020-10-15 06:01:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-15 06:01:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-15 06:01:56,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-15 06:01:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 06:01:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 06:01:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2020-10-15 06:01:56,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 06:01:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-15 06:01:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-15 06:01:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-15 06:01:56,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-15 06:01:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-15 06:01:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-15 06:01:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-15 06:01:56,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-15 06:01:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-15 06:01:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-15 06:01:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-15 06:01:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:01:56,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-15 06:01:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-15 06:01:56,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-15 06:01:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-15 06:01:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-15 06:01:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-15 06:01:56,224 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-15 06:01:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-15 06:01:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-15 06:01:56,225 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-15 06:01:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-15 06:01:56,226 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-15 06:01:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-15 06:01:56,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-15 06:01:56,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-15 06:01:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-15 06:01:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-15 06:01:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-15 06:01:56,231 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-15 06:01:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-15 06:01:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-15 06:01:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-15 06:01:56,232 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-15 06:01:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-15 06:01:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-15 06:01:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-15 06:01:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-15 06:01:56,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:01:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-15 06:01:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-15 06:01:56,234 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-15 06:01:56,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-15 06:01:56,242 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-15 06:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:01:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-15 06:01:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-15 06:01:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:01:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 06:01:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-15 06:01:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-15 06:01:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-15 06:01:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-15 06:01:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-15 06:01:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-15 06:01:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-15 06:01:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-15 06:01:56,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-15 06:01:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-15 06:01:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-15 06:01:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-15 06:01:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-15 06:01:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-15 06:01:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-15 06:01:56,251 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-15 06:01:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-15 06:01:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-15 06:01:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-15 06:01:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-15 06:01:56,252 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-15 06:01:56,253 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-15 06:01:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-15 06:01:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-15 06:01:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-15 06:01:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-15 06:01:56,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-15 06:01:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-15 06:01:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:01:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-15 06:01:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-15 06:01:56,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:01:56,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-15 06:01:56,257 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-15 06:01:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-15 06:01:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-15 06:01:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-15 06:01:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-15 06:01:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-15 06:01:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-15 06:01:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-15 06:01:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-15 06:01:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-15 06:01:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-15 06:01:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-15 06:01:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-15 06:01:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-15 06:01:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-15 06:01:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-15 06:01:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-15 06:01:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-15 06:01:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-15 06:01:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-15 06:01:56,274 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-15 06:01:56,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-15 06:01:56,276 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-15 06:01:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-15 06:01:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2020-10-15 06:01:56,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:01:56,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:01:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-15 06:01:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-15 06:01:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:01:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-15 06:01:56,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-15 06:01:57,549 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 06:02:32,670 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:02:32,671 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 06:02:32,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:02:32 BoogieIcfgContainer [2020-10-15 06:02:32,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:02:32,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:02:32,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:02:32,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:02:32,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:01:53" (1/3) ... [2020-10-15 06:02:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6344e4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:02:32, skipping insertion in model container [2020-10-15 06:02:32,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:01:55" (2/3) ... [2020-10-15 06:02:32,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6344e4d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:02:32, skipping insertion in model container [2020-10-15 06:02:32,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:02:32" (3/3) ... [2020-10-15 06:02:32,706 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2020-10-15 06:02:32,717 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:02:32,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:02:32,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:02:32,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:02:32,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:02:32,771 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:02:32,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:02:32,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:02:32,771 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:02:32,771 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:02:32,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:02:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states. [2020-10-15 06:02:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 06:02:32,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:02:32,841 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] [2020-10-15 06:02:32,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:02:32,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:02:32,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1106737548, now seen corresponding path program 1 times [2020-10-15 06:02:32,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:02:32,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828213666] [2020-10-15 06:02:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:02:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:02:33,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:02:39,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:02:39,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-15 06:02:39,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:02:39,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6332 [2020-10-15 06:02:39,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:02:39,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:02:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 06:02:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:02:39,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 06:02:39,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 06:02:43,718 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification that was a NOOP. DAG size: 811 [2020-10-15 06:02:43,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:02:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:02:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:02:45,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:02:45,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:02:45,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:02:45,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2110 [2020-10-15 06:02:45,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:02:45,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:02:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:02:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:02:45,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:02:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:02:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:02:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:02:46,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:02:46,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:02:46,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:02:46,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:02:46,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:02:46,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:02:46,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:02:46,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:02:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:02:46,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:02:46,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:02:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:02:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:02:46,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:02:46,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:02:46,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:02:46,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:02:46,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:02:46,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:02:46,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:02:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:02:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:02:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:02:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:02:46,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 06:02:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:02:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:02:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:02:46,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:02:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:02:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 06:02:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:02:46,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:02:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:02:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:02:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:02:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:02:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:02:46,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828213666] [2020-10-15 06:02:46,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:02:46,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 06:02:46,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263396171] [2020-10-15 06:02:46,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 06:02:46,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:02:46,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 06:02:46,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 06:02:46,263 INFO L87 Difference]: Start difference. First operand 1541 states. Second operand 5 states. [2020-10-15 06:02:52,027 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification that was a NOOP. DAG size: 813 [2020-10-15 06:04:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:04:08,390 INFO L93 Difference]: Finished difference Result 5014 states and 7291 transitions. [2020-10-15 06:04:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 06:04:08,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-15 06:04:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:04:08,443 INFO L225 Difference]: With dead ends: 5014 [2020-10-15 06:04:08,444 INFO L226 Difference]: Without dead ends: 3502 [2020-10-15 06:04:08,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 06:04:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2020-10-15 06:04:09,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2659. [2020-10-15 06:04:09,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2020-10-15 06:04:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3654 transitions. [2020-10-15 06:04:09,431 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3654 transitions. Word has length 26 [2020-10-15 06:04:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:04:09,432 INFO L479 AbstractCegarLoop]: Abstraction has 2659 states and 3654 transitions. [2020-10-15 06:04:09,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 06:04:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3654 transitions. [2020-10-15 06:04:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 06:04:09,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:04:09,434 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] [2020-10-15 06:04:09,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:04:09,435 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:04:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:04:09,435 INFO L82 PathProgramCache]: Analyzing trace with hash 48619873, now seen corresponding path program 1 times [2020-10-15 06:04:09,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:04:09,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884668481] [2020-10-15 06:04:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:04:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:04:09,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:04:15,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:04:15,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 06:04:15,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:04:15,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6266 [2020-10-15 06:04:15,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:04:15,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:04:15,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 06:04:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:04:15,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-15 06:04:15,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 06:04:19,423 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification that was a NOOP. DAG size: 811 [2020-10-15 06:04:19,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:04:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:04:19,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:04:21,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:04:21,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:04:21,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:04:21,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1536 [2020-10-15 06:04:21,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:04:21,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:04:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:04:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:04:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:04:21,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:04:21,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:04:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:04:21,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:04:21,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:04:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:04:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:04:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:04:21,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:04:21,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:04:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:04:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:04:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:04:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:04:21,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 06:04:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:04:21,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:04:21,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:04:21,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:04:21,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:04:21,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:04:21,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:04:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-15 06:04:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:04:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:04:21,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:04:21,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:04:21,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:04:21,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:04:21,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:04:21,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:04:21,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:04:21,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:04:21,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:04:21,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:04:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:04:21,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884668481] [2020-10-15 06:04:21,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:04:21,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 06:04:21,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513493508] [2020-10-15 06:04:21,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 06:04:21,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:04:21,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 06:04:21,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 06:04:21,247 INFO L87 Difference]: Start difference. First operand 2659 states and 3654 transitions. Second operand 5 states. [2020-10-15 06:04:26,854 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification that was a NOOP. DAG size: 813