/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=BIGGEST --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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 22:16:27,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 22:16:27,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 22:16:27,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 22:16:27,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 22:16:27,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 22:16:27,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 22:16:27,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 22:16:27,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 22:16:27,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 22:16:27,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 22:16:27,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 22:16:27,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 22:16:27,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 22:16:27,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 22:16:27,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 22:16:27,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 22:16:27,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 22:16:27,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 22:16:27,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 22:16:27,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 22:16:27,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 22:16:27,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 22:16:27,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 22:16:27,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 22:16:27,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 22:16:27,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 22:16:27,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 22:16:27,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 22:16:27,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 22:16:27,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 22:16:27,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 22:16:27,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 22:16:27,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 22:16:27,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 22:16:27,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 22:16:27,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 22:16:27,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 22:16:27,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 22:16:27,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 22:16:27,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 22:16:27,882 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 [2020-10-12 22:16:27,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 22:16:27,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 22:16:27,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 22:16:27,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 22:16:27,905 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 22:16:27,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 22:16:27,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 22:16:27,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 22:16:27,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 22:16:27,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 22:16:27,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 22:16:27,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 22:16:27,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 22:16:27,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 22:16:27,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 22:16:27,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 22:16:27,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 22:16:27,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 22:16:27,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 22:16:27,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 22:16:27,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 22:16:27,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-12 22:16:27,912 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 22:16:28,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 22:16:28,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 22:16:28,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 22:16:28,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 22:16:28,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 22:16:28,226 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-10-12 22:16:28,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6424260f2/6198db7e798540da9ade0f8f7dc9fca0/FLAG501f4ffc5 [2020-10-12 22:16:29,002 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 22:16:29,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-10-12 22:16:29,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6424260f2/6198db7e798540da9ade0f8f7dc9fca0/FLAG501f4ffc5 [2020-10-12 22:16:29,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6424260f2/6198db7e798540da9ade0f8f7dc9fca0 [2020-10-12 22:16:29,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 22:16:29,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 22:16:29,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 22:16:29,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 22:16:29,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 22:16:29,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:16:29" (1/1) ... [2020-10-12 22:16:29,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a7c379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:29, skipping insertion in model container [2020-10-12 22:16:29,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:16:29" (1/1) ... [2020-10-12 22:16:29,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 22:16:29,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 22:16:30,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:16:30,949 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 22:16:31,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 22:16:31,524 INFO L208 MainTranslator]: Completed translation [2020-10-12 22:16:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31 WrapperNode [2020-10-12 22:16:31,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 22:16:31,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 22:16:31,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 22:16:31,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 22:16:31,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (1/1) ... [2020-10-12 22:16:31,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 22:16:31,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 22:16:31,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 22:16:31,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 22:16:31,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (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 [2020-10-12 22:16:31,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 22:16:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 22:16:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-12 22:16:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-12 22:16:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-12 22:16:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-12 22:16:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-12 22:16:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-12 22:16:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-12 22:16:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-12 22:16:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-12 22:16:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-12 22:16:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-12 22:16:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-12 22:16:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-12 22:16:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-12 22:16:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-12 22:16:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-12 22:16:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-12 22:16:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-12 22:16:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-12 22:16:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-12 22:16:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-12 22:16:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-12 22:16:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-12 22:16:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-12 22:16:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-12 22:16:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-12 22:16:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-12 22:16:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-12 22:16:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-12 22:16:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-12 22:16:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-12 22:16:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-12 22:16:31,946 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-12 22:16:31,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-12 22:16:31,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-12 22:16:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-12 22:16:31,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-12 22:16:31,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-12 22:16:31,952 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-12 22:16:31,953 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-12 22:16:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-12 22:16:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-12 22:16:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-12 22:16:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-12 22:16:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-12 22:16:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-12 22:16:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 22:16:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-12 22:16:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-12 22:16:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-12 22:16:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-12 22:16:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-12 22:16:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 22:16:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-12 22:16:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-12 22:16:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-12 22:16:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-12 22:16:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 22:16:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 22:16:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-12 22:16:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-12 22:16:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-12 22:16:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-12 22:16:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2020-10-12 22:16:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-12 22:16:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2020-10-12 22:16:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-12 22:16:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-12 22:16:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-12 22:16:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-12 22:16:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2020-10-12 22:16:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-12 22:16:31,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-12 22:16:31,977 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-12 22:16:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-12 22:16:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-12 22:16:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-12 22:16:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-12 22:16:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 22:16:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 22:16:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 22:16:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-12 22:16:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2020-10-12 22:16:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 22:16:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 22:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-12 22:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-12 22:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 22:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-12 22:16:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-12 22:16:33,113 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-12 22:17:07,074 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 22:17:07,074 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 22:17:07,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:17:07 BoogieIcfgContainer [2020-10-12 22:17:07,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 22:17:07,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 22:17:07,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 22:17:07,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 22:17:07,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:16:29" (1/3) ... [2020-10-12 22:17:07,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e1cbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:17:07, skipping insertion in model container [2020-10-12 22:17:07,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:16:31" (2/3) ... [2020-10-12 22:17:07,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e1cbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:17:07, skipping insertion in model container [2020-10-12 22:17:07,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:17:07" (3/3) ... [2020-10-12 22:17:07,099 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-10-12 22:17:07,108 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 22:17:07,118 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 22:17:07,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 22:17:07,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 22:17:07,167 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 22:17:07,167 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 22:17:07,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 22:17:07,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 22:17:07,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 22:17:07,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 22:17:07,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 22:17:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states. [2020-10-12 22:17:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-12 22:17:07,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:17:07,230 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] [2020-10-12 22:17:07,231 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:17:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:17:07,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1106737548, now seen corresponding path program 1 times [2020-10-12 22:17:07,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:17:07,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027416634] [2020-10-12 22:17:07,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:17:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:17:08,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:17:13,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:17:13,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 22:17:13,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:17:13,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5530 [2020-10-12 22:17:13,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:17:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 22:17:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:17:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 22:17:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 22:17:16,367 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 811 [2020-10-12 22:17:16,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:17:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:17:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:17:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:17:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:17:18,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:17:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2017 [2020-10-12 22:17:18,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:17:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:17:18,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:17:18,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:17:18,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:17:18,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:17:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:17:18,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:17:18,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:17:18,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:17:18,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:17:18,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:17:18,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 22:17:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:17:18,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:17:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:17:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:17:18,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:17:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 22:17:18,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:17:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:17:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:17:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:17:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:17:18,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 22:17:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:17:18,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:17:18,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:17:18,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:17:18,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:17:18,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 22:17:18,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:17:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:17:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:17:18,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 22:17:18,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:17:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:17:18,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027416634] [2020-10-12 22:17:18,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:17:18,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:17:18,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595824436] [2020-10-12 22:17:18,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:17:18,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:17:18,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:17:18,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:17:18,751 INFO L87 Difference]: Start difference. First operand 1541 states. Second operand 5 states. [2020-10-12 22:17:23,543 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 813 [2020-10-12 22:18:25,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:18:25,439 INFO L93 Difference]: Finished difference Result 5014 states and 7291 transitions. [2020-10-12 22:18:25,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:18:25,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-12 22:18:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:18:25,500 INFO L225 Difference]: With dead ends: 5014 [2020-10-12 22:18:25,500 INFO L226 Difference]: Without dead ends: 3502 [2020-10-12 22:18:25,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:18:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2020-10-12 22:18:27,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2659. [2020-10-12 22:18:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2020-10-12 22:18:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3654 transitions. [2020-10-12 22:18:27,154 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3654 transitions. Word has length 26 [2020-10-12 22:18:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:18:27,154 INFO L479 AbstractCegarLoop]: Abstraction has 2659 states and 3654 transitions. [2020-10-12 22:18:27,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:18:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3654 transitions. [2020-10-12 22:18:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 22:18:27,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:18:27,157 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] [2020-10-12 22:18:27,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 22:18:27,157 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:18:27,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:18:27,158 INFO L82 PathProgramCache]: Analyzing trace with hash 48619873, now seen corresponding path program 1 times [2020-10-12 22:18:27,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:18:27,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419784545] [2020-10-12 22:18:27,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:18:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:18:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:18:32,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:18:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 22:18:32,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:18:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 22:18:32,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:18:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 22:18:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 22:18:32,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 22:18:32,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:18:34,956 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification that was a NOOP. DAG size: 811 [2020-10-12 22:18:34,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:18:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:18:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:18:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:18:36,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:18:36,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:18:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1420 [2020-10-12 22:18:36,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:18:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:18:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:18:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 22:18:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:18:36,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:18:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:18:36,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:18:36,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:18:36,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:18:36,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:18:36,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:18:36,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:18:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:18:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:18:36,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:18:36,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:18:36,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 22:18:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:18:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:18:36,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:18:36,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:18:36,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:18:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:18:36,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:18:36,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:18:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:18:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 22:18:36,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:18:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 22:18:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:18:36,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:18:36,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:18:36,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:18:36,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:18:36,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 22:18:36,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:18:36,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 22:18:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:18:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 22:18:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:18:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:18:36,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419784545] [2020-10-12 22:18:36,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:18:36,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 22:18:36,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315594032] [2020-10-12 22:18:36,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 22:18:36,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:18:36,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 22:18:36,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 22:18:36,637 INFO L87 Difference]: Start difference. First operand 2659 states and 3654 transitions. Second operand 5 states. [2020-10-12 22:18:41,338 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 813 [2020-10-12 22:19:52,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 22:19:52,648 INFO L93 Difference]: Finished difference Result 8203 states and 11762 transitions. [2020-10-12 22:19:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 22:19:52,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-12 22:19:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 22:19:52,694 INFO L225 Difference]: With dead ends: 8203 [2020-10-12 22:19:52,694 INFO L226 Difference]: Without dead ends: 6926 [2020-10-12 22:19:52,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 22:19:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2020-10-12 22:19:54,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 5253. [2020-10-12 22:19:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5253 states. [2020-10-12 22:19:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 7228 transitions. [2020-10-12 22:19:54,285 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 7228 transitions. Word has length 27 [2020-10-12 22:19:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 22:19:54,286 INFO L479 AbstractCegarLoop]: Abstraction has 5253 states and 7228 transitions. [2020-10-12 22:19:54,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 22:19:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 7228 transitions. [2020-10-12 22:19:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 22:19:54,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 22:19:54,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 22:19:54,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 22:19:54,289 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 22:19:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 22:19:54,290 INFO L82 PathProgramCache]: Analyzing trace with hash 196240471, now seen corresponding path program 1 times [2020-10-12 22:19:54,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 22:19:54,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510989855] [2020-10-12 22:19:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 22:19:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:19:54,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:19:57,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:19:59,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:19:59,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 22:19:59,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:19:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-12 22:19:59,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:19:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 22:19:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 22:19:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 22:19:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:20:02,170 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 811 [2020-10-12 22:20:02,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 22:20:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:20:03,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1443 [2020-10-12 22:20:03,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:20:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:20:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:03,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 22:20:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:03,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:03,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:03,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:20:03,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:20:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:20:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:20:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 22:20:03,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 22:20:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:03,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:03,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:03,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 22:20:03,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:03,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 22:20:03,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:20:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:03,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:20:03,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:03,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 22:20:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:03,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:03,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:04,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 22:20:04,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 22:20:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 22:20:04,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:04,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:20:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:04,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:04,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:04,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 22:20:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 22:20:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:20:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:04,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:04,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:04,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 22:20:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 22:20:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 22:20:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 22:20:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:04,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-12 22:20:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:04,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:04,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:04,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 22:20:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 22:20:04,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 22:20:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 22:20:04,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:20:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:05,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:20:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 22:20:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 22:20:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 22:20:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:05,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 22:20:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:05,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:05,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:05,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 22:20:05,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:05,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 22:20:05,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:20:05,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 22:20:05,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:20:05,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:05,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 22:20:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 22:20:05,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 22:20:05,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 22:20:05,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 22:20:05,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 22:20:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 22:20:05,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 22:20:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 22:20:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 22:20:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 22:20:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 22:20:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 22:20:05,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510989855] [2020-10-12 22:20:05,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 22:20:05,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 22:20:05,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570351089] [2020-10-12 22:20:05,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 22:20:05,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 22:20:05,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 22:20:05,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2020-10-12 22:20:05,296 INFO L87 Difference]: Start difference. First operand 5253 states and 7228 transitions. Second operand 18 states. [2020-10-12 22:20:10,514 WARN L193 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 818