/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=NARROWEST --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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 22:57:43,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 22:57:43,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 22:57:43,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 22:57:43,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 22:57:44,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 22:57:44,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 22:57:44,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 22:57:44,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 22:57:44,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 22:57:44,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 22:57:44,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 22:57:44,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 22:57:44,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 22:57:44,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 22:57:44,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 22:57:44,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 22:57:44,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 22:57:44,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 22:57:44,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 22:57:44,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 22:57:44,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 22:57:44,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 22:57:44,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 22:57:44,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 22:57:44,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 22:57:44,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 22:57:44,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 22:57:44,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 22:57:44,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 22:57:44,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 22:57:44,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 22:57:44,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 22:57:44,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 22:57:44,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 22:57:44,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 22:57:44,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 22:57:44,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 22:57:44,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 22:57:44,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 22:57:44,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 22:57:44,076 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 [2020-10-13 22:57:44,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 22:57:44,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 22:57:44,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 22:57:44,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 22:57:44,117 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 22:57:44,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 22:57:44,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 22:57:44,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 22:57:44,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 22:57:44,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 22:57:44,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 22:57:44,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 22:57:44,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 22:57:44,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 22:57:44,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 22:57:44,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 22:57:44,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 22:57:44,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 22:57:44,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 22:57:44,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 22:57:44,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 22:57:44,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 22:57:44,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 22:57:44,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 22:57:44,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 22:57:44,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 22:57:44,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 22:57:44,123 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 22:57:44,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 22:57:44,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 22:57:44,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 22:57:44,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 22:57:44,468 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 22:57:44,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-13 22:57:44,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d41982798/368f5daea4364d1781007241ecc639e3/FLAGc8f0139f1 [2020-10-13 22:57:45,367 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 22:57:45,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-13 22:57:45,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d41982798/368f5daea4364d1781007241ecc639e3/FLAGc8f0139f1 [2020-10-13 22:57:45,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d41982798/368f5daea4364d1781007241ecc639e3 [2020-10-13 22:57:45,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 22:57:45,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 22:57:45,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 22:57:45,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 22:57:45,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 22:57:45,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:57:45" (1/1) ... [2020-10-13 22:57:45,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ba1ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:45, skipping insertion in model container [2020-10-13 22:57:45,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:57:45" (1/1) ... [2020-10-13 22:57:45,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 22:57:46,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 22:57:47,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 22:57:47,744 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 22:57:48,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 22:57:48,443 INFO L208 MainTranslator]: Completed translation [2020-10-13 22:57:48,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48 WrapperNode [2020-10-13 22:57:48,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 22:57:48,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 22:57:48,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 22:57:48,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 22:57:48,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (1/1) ... [2020-10-13 22:57:48,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 22:57:48,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 22:57:48,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 22:57:48,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 22:57:48,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (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 [2020-10-13 22:57:48,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 22:57:48,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 22:57:48,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-13 22:57:48,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 22:57:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 22:57:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-13 22:57:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-13 22:57:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 22:57:48,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-13 22:57:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-13 22:57:48,917 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-13 22:57:48,918 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-13 22:57:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2020-10-13 22:57:48,921 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2020-10-13 22:57:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-13 22:57:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 22:57:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 22:57:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 22:57:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 22:57:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2020-10-13 22:57:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2020-10-13 22:57:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2020-10-13 22:57:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2020-10-13 22:57:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 22:57:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 22:57:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2020-10-13 22:57:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2020-10-13 22:57:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-10-13 22:57:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2020-10-13 22:57:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2020-10-13 22:57:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2020-10-13 22:57:48,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2020-10-13 22:57:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2020-10-13 22:57:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2020-10-13 22:57:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2020-10-13 22:57:48,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2020-10-13 22:57:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2020-10-13 22:57:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2020-10-13 22:57:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2020-10-13 22:57:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2020-10-13 22:57:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2020-10-13 22:57:48,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2020-10-13 22:57:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-10-13 22:57:48,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-10-13 22:57:48,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2020-10-13 22:57:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2020-10-13 22:57:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2020-10-13 22:57:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 22:57:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_gadget_driver_1 [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_5 [2020-10-13 22:57:48,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_6 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_7 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_9 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_10 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2020-10-13 22:57:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_13 [2020-10-13 22:57:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_14 [2020-10-13 22:57:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-13 22:57:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2020-10-13 22:57:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2020-10-13 22:57:48,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2020-10-13 22:57:48,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2020-10-13 22:57:48,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2020-10-13 22:57:48,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2020-10-13 22:57:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2020-10-13 22:57:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 22:57:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2020-10-13 22:57:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-13 22:57:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 22:57:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-13 22:57:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 22:57:48,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-13 22:57:48,947 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 22:57:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 22:57:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 22:57:48,950 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-13 22:57:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 22:57:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 22:57:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2020-10-13 22:57:48,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2020-10-13 22:57:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2020-10-13 22:57:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2020-10-13 22:57:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-13 22:57:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2020-10-13 22:57:48,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 22:57:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 22:57:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 22:57:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-13 22:57:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-13 22:57:48,961 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-13 22:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2020-10-13 22:57:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 22:57:48,964 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_prefetch [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 22:57:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2020-10-13 22:57:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-13 22:57:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 22:57:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2020-10-13 22:57:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 22:57:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-13 22:57:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 22:57:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 22:57:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 22:57:48,974 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 22:57:48,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 22:57:48,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 22:57:48,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 22:57:48,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_gadget_driver_1 [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-13 22:57:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_10 [2020-10-13 22:57:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2020-10-13 22:57:48,983 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 22:57:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 22:57:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-13 22:57:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-13 22:57:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 22:57:48,984 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_7 [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_13 [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2020-10-13 22:57:48,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_6 [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_5 [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-13 22:57:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2020-10-13 22:57:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_9 [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_14 [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2020-10-13 22:57:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 22:57:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2020-10-13 22:57:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2020-10-13 22:57:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 22:57:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 22:57:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 22:57:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 22:57:50,196 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 22:58:25,803 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-13 22:58:28,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 22:58:28,084 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 22:58:28,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:58:28 BoogieIcfgContainer [2020-10-13 22:58:28,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 22:58:28,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 22:58:28,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 22:58:28,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 22:58:28,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:57:45" (1/3) ... [2020-10-13 22:58:28,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cd409d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:58:28, skipping insertion in model container [2020-10-13 22:58:28,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:57:48" (2/3) ... [2020-10-13 22:58:28,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cd409d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:58:28, skipping insertion in model container [2020-10-13 22:58:28,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:58:28" (3/3) ... [2020-10-13 22:58:28,110 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2020-10-13 22:58:28,121 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 22:58:28,133 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 22:58:28,149 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 22:58:28,186 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 22:58:28,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 22:58:28,187 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 22:58:28,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 22:58:28,187 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 22:58:28,187 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 22:58:28,187 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 22:58:28,187 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 22:58:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states. [2020-10-13 22:58:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 22:58:28,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 22:58:28,263 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-13 22:58:28,263 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 22:58:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 22:58:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1188860653, now seen corresponding path program 1 times [2020-10-13 22:58:28,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 22:58:28,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524419697] [2020-10-13 22:58:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 22:58:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:32,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:37,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 22:58:37,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 22:58:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8233 [2020-10-13 22:58:37,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 22:58:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-13 22:58:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 22:58:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 22:58:41,393 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification that was a NOOP. DAG size: 853 [2020-10-13 22:58:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 22:58:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 22:58:42,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 850 [2020-10-13 22:58:42,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 22:58:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 22:58:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 22:58:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 22:58:42,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 22:58:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 22:58:42,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 22:58:42,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 22:58:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 22:58:42,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 22:58:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 22:58:42,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 22:58:42,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 22:58:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 22:58:42,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 22:58:42,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 22:58:42,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 22:58:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 22:58:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 22:58:42,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 22:58:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 22:58:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 22:58:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 22:58:42,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 22:58:42,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 22:58:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 22:58:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:58:42,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:58:42,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:58:42,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 22:58:42,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:58:42,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 22:58:42,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:58:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 22:58:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 22:58:42,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 22:58:42,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 22:58:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 22:58:42,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524419697] [2020-10-13 22:58:42,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 22:58:42,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 22:58:42,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602875600] [2020-10-13 22:58:42,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 22:58:42,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 22:58:42,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 22:58:42,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 22:58:42,750 INFO L87 Difference]: Start difference. First operand 1616 states. Second operand 5 states. [2020-10-13 22:58:49,804 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification that was a NOOP. DAG size: 855 [2020-10-13 22:59:52,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 22:59:52,997 INFO L93 Difference]: Finished difference Result 5021 states and 7226 transitions. [2020-10-13 22:59:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 22:59:53,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-10-13 22:59:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 22:59:53,066 INFO L225 Difference]: With dead ends: 5021 [2020-10-13 22:59:53,067 INFO L226 Difference]: Without dead ends: 3411 [2020-10-13 22:59:53,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 22:59:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2020-10-13 22:59:54,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 2754. [2020-10-13 22:59:54,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2020-10-13 22:59:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3783 transitions. [2020-10-13 22:59:54,092 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3783 transitions. Word has length 68 [2020-10-13 22:59:54,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 22:59:54,093 INFO L479 AbstractCegarLoop]: Abstraction has 2754 states and 3783 transitions. [2020-10-13 22:59:54,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 22:59:54,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3783 transitions. [2020-10-13 22:59:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 22:59:54,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 22:59:54,100 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-13 22:59:54,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 22:59:54,100 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 22:59:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 22:59:54,101 INFO L82 PathProgramCache]: Analyzing trace with hash 421657599, now seen corresponding path program 1 times [2020-10-13 22:59:54,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 22:59:54,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093402068] [2020-10-13 22:59:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 22:59:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 22:59:54,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 22:59:59,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 22:59:59,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 22:59:59,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 22:59:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-13 22:59:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 22:59:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 22:59:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 22:59:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 22:59:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:02,735 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification that was a NOOP. DAG size: 853 [2020-10-13 23:00:02,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:02,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:04,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:04,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:04,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1963 [2020-10-13 23:00:04,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:00:04,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:04,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:04,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:04,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:04,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:04,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:00:04,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:04,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:04,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:04,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:04,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:04,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:04,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:00:04,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:04,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:04,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 23:00:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:04,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:04,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:05,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:05,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:05,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 23:00:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:05,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:05,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:05,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 23:00:05,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 23:00:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:05,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:05,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 23:00:05,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:05,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 23:00:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:05,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:05,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:05,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 23:00:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:05,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:05,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:00:05,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:00:05,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 23:00:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:05,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:05,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:05,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:05,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:00:05,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:05,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 23:00:05,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093402068] [2020-10-13 23:00:05,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:00:05,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 23:00:05,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292745804] [2020-10-13 23:00:05,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:00:05,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:05,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:00:05,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:00:05,254 INFO L87 Difference]: Start difference. First operand 2754 states and 3783 transitions. Second operand 6 states. [2020-10-13 23:00:10,530 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 855 [2020-10-13 23:01:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:30,884 INFO L93 Difference]: Finished difference Result 7463 states and 10937 transitions. [2020-10-13 23:01:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 23:01:30,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-10-13 23:01:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:30,939 INFO L225 Difference]: With dead ends: 7463 [2020-10-13 23:01:30,939 INFO L226 Difference]: Without dead ends: 7433 [2020-10-13 23:01:30,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:01:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7433 states. [2020-10-13 23:01:32,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7433 to 5403. [2020-10-13 23:01:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5403 states. [2020-10-13 23:01:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 7449 transitions. [2020-10-13 23:01:32,628 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 7449 transitions. Word has length 67 [2020-10-13 23:01:32,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:32,629 INFO L479 AbstractCegarLoop]: Abstraction has 5403 states and 7449 transitions. [2020-10-13 23:01:32,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:01:32,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 7449 transitions. [2020-10-13 23:01:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-13 23:01:32,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:32,632 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2020-10-13 23:01:32,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:01:32,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:32,633 INFO L82 PathProgramCache]: Analyzing trace with hash 183859077, now seen corresponding path program 1 times [2020-10-13 23:01:32,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:32,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786845713] [2020-10-13 23:01:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking...