/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 07:21:44,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 07:21:44,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 07:21:44,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 07:21:44,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 07:21:44,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 07:21:44,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 07:21:44,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 07:21:44,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 07:21:44,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 07:21:44,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 07:21:44,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 07:21:44,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 07:21:44,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 07:21:44,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 07:21:44,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 07:21:44,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 07:21:44,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 07:21:44,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 07:21:44,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 07:21:44,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 07:21:44,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 07:21:44,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 07:21:44,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 07:21:44,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 07:21:44,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 07:21:44,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 07:21:44,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 07:21:44,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 07:21:44,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 07:21:44,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 07:21:44,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 07:21:44,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 07:21:44,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 07:21:44,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 07:21:44,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 07:21:44,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 07:21:44,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 07:21:44,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 07:21:44,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 07:21:44,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 07:21:44,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 07:21:44,756 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 07:21:44,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 07:21:44,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 07:21:44,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 07:21:44,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 07:21:44,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 07:21:44,757 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 07:21:44,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 07:21:44,758 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 07:21:44,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 07:21:44,758 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 07:21:44,759 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 07:21:44,759 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 07:21:44,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 07:21:44,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 07:21:44,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:21:44,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 07:21:44,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 07:21:44,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 07:21:44,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 07:21:44,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 07:21:44,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 07:21:44,959 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 07:21:44,959 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 07:21:44,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-04-01 07:21:45,986 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 07:21:46,305 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 07:21:46,305 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-04-01 07:21:46,327 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49f512de/71c36ec5695c4a50bfd93946ed88e4ce/FLAGd5144abe5 [2023-04-01 07:21:46,336 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b49f512de/71c36ec5695c4a50bfd93946ed88e4ce [2023-04-01 07:21:46,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 07:21:46,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 07:21:46,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 07:21:46,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 07:21:46,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 07:21:46,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:21:46" (1/1) ... [2023-04-01 07:21:46,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d51e80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:46, skipping insertion in model container [2023-04-01 07:21:46,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:21:46" (1/1) ... [2023-04-01 07:21:46,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 07:21:46,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 07:21:46,905 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2023-04-01 07:21:47,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:21:47,240 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 07:21:47,330 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i[206925,206938] [2023-04-01 07:21:47,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:21:47,549 WARN L667 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 07:21:47,554 INFO L208 MainTranslator]: Completed translation [2023-04-01 07:21:47,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47 WrapperNode [2023-04-01 07:21:47,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 07:21:47,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 07:21:47,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 07:21:47,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 07:21:47,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 07:21:47,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 07:21:47,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 07:21:47,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 07:21:47,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (1/1) ... [2023-04-01 07:21:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:21:47,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:21:47,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 07:21:47,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 07:21:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 07:21:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 07:21:47,877 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 07:21:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-01 07:21:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-01 07:21:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-01 07:21:47,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 07:21:47,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-01 07:21:47,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card_complete [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_recv [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_tx_complete [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_free [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_probe [2023-04-01 07:21:47,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_suspend [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_tx_init [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_init [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_sync [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_data_sync [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_host_to_card [2023-04-01 07:21:47,882 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_register_dev [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_prog_fw_w_helper [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_dnld_fw [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_submit_rx_urb [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_data_complete [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_init_module [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cleanup_module [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_mwifiex_if_ops_1 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-01 07:21:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_17 [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_18 [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 07:21:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_add_card [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_cancel_hs [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_deauthenticate_all [2023-04-01 07:21:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_enable_hs [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_init_shutdown_fw [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_process_hs_config [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_process_sleep_confirm_resp [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_remove_card [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 07:21:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 07:21:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-01 07:21:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 07:21:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 07:21:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 07:21:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 07:21:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 07:21:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 07:21:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 07:21:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 07:21:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-01 07:21:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 07:21:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-04-01 07:21:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_mwifiex_if_ops_1 [2023-04-01 07:21:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_process_sleep_confirm_resp [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_process_hs_config [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_deauthenticate_all [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_init_shutdown_fw [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_add_card [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_remove_card [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_cancel_hs [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_enable_hs [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-01 07:21:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_17 [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_18 [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 07:21:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card_complete [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_recv [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_tx_complete [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_free [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_probe [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_suspend [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_tx_init [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_init [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_sync [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_data_sync [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_host_to_card [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_register_dev [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_prog_fw_w_helper [2023-04-01 07:21:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_dnld_fw [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_submit_rx_urb [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_data_complete [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_init_module [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cleanup_module [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 07:21:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 07:21:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 07:21:48,421 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 07:21:48,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 07:21:48,544 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 07:21:52,315 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 07:21:52,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 07:21:52,571 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 07:21:52,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:21:52 BoogieIcfgContainer [2023-04-01 07:21:52,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 07:21:52,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 07:21:52,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 07:21:52,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 07:21:52,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:21:46" (1/3) ... [2023-04-01 07:21:52,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4380fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:21:52, skipping insertion in model container [2023-04-01 07:21:52,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:21:47" (2/3) ... [2023-04-01 07:21:52,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4380fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:21:52, skipping insertion in model container [2023-04-01 07:21:52,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:21:52" (3/3) ... [2023-04-01 07:21:52,580 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_usb.ko-entry_point.cil.out.i [2023-04-01 07:21:52,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 07:21:52,591 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 07:21:52,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 07:21:52,652 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1de78f20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 07:21:52,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 07:21:52,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 1007 states, 620 states have (on average 1.320967741935484) internal successors, (819), 639 states have internal predecessors, (819), 276 states have call successors, (276), 105 states have call predecessors, (276), 104 states have return successors, (272), 267 states have call predecessors, (272), 272 states have call successors, (272) [2023-04-01 07:21:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-01 07:21:52,679 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:52,679 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:52,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:52,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash 223833533, now seen corresponding path program 1 times [2023-04-01 07:21:52,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:52,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294483749] [2023-04-01 07:21:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-01 07:21:53,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:53,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294483749] [2023-04-01 07:21:53,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294483749] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:53,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:53,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:53,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926307173] [2023-04-01 07:21:53,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:53,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:53,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:53,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:53,230 INFO L87 Difference]: Start difference. First operand has 1007 states, 620 states have (on average 1.320967741935484) internal successors, (819), 639 states have internal predecessors, (819), 276 states have call successors, (276), 105 states have call predecessors, (276), 104 states have return successors, (272), 267 states have call predecessors, (272), 272 states have call successors, (272) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 07:21:53,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:53,770 INFO L93 Difference]: Finished difference Result 2378 states and 3276 transitions. [2023-04-01 07:21:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2023-04-01 07:21:53,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:53,786 INFO L225 Difference]: With dead ends: 2378 [2023-04-01 07:21:53,786 INFO L226 Difference]: Without dead ends: 1547 [2023-04-01 07:21:53,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:53,794 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 1042 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:53,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1986 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:21:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-04-01 07:21:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2023-04-01 07:21:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 971 states have (on average 1.3151390319258496) internal successors, (1277), 986 states have internal predecessors, (1277), 411 states have call successors, (411), 167 states have call predecessors, (411), 164 states have return successors, (408), 402 states have call predecessors, (408), 408 states have call successors, (408) [2023-04-01 07:21:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2096 transitions. [2023-04-01 07:21:53,960 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2096 transitions. Word has length 67 [2023-04-01 07:21:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:53,977 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2096 transitions. [2023-04-01 07:21:53,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-01 07:21:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2096 transitions. [2023-04-01 07:21:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-01 07:21:53,982 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:53,982 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:53,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 07:21:53,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:53,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:53,983 INFO L85 PathProgramCache]: Analyzing trace with hash 37916441, now seen corresponding path program 1 times [2023-04-01 07:21:53,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:53,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196921850] [2023-04-01 07:21:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:53,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 07:21:54,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:54,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196921850] [2023-04-01 07:21:54,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196921850] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:54,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:54,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 07:21:54,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983683429] [2023-04-01 07:21:54,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:54,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:21:54,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:21:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 07:21:54,469 INFO L87 Difference]: Start difference. First operand 1547 states and 2096 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-01 07:21:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:55,916 INFO L93 Difference]: Finished difference Result 3079 states and 4209 transitions. [2023-04-01 07:21:55,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 07:21:55,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2023-04-01 07:21:55,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:55,951 INFO L225 Difference]: With dead ends: 3079 [2023-04-01 07:21:55,951 INFO L226 Difference]: Without dead ends: 3048 [2023-04-01 07:21:55,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 07:21:55,955 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 1081 mSDsluCounter, 3806 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:55,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 4893 Invalid, 992 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 07:21:55,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2023-04-01 07:21:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3048. [2023-04-01 07:21:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 1920 states have (on average 1.3166666666666667) internal successors, (2528), 1951 states have internal predecessors, (2528), 806 states have call successors, (806), 322 states have call predecessors, (806), 321 states have return successors, (841), 791 states have call predecessors, (841), 803 states have call successors, (841) [2023-04-01 07:21:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 4175 transitions. [2023-04-01 07:21:56,063 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 4175 transitions. Word has length 92 [2023-04-01 07:21:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:56,065 INFO L495 AbstractCegarLoop]: Abstraction has 3048 states and 4175 transitions. [2023-04-01 07:21:56,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-01 07:21:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 4175 transitions. [2023-04-01 07:21:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-01 07:21:56,077 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:56,077 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:56,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 07:21:56,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:56,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2117244190, now seen corresponding path program 1 times [2023-04-01 07:21:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:56,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905557896] [2023-04-01 07:21:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-01 07:21:56,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:56,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905557896] [2023-04-01 07:21:56,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905557896] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:56,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:56,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:56,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193995416] [2023-04-01 07:21:56,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:56,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:56,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:56,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:56,281 INFO L87 Difference]: Start difference. First operand 3048 states and 4175 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:21:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:56,842 INFO L93 Difference]: Finished difference Result 7732 states and 10559 transitions. [2023-04-01 07:21:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 159 [2023-04-01 07:21:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:56,860 INFO L225 Difference]: With dead ends: 7732 [2023-04-01 07:21:56,860 INFO L226 Difference]: Without dead ends: 4703 [2023-04-01 07:21:56,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:56,869 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 601 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:56,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 2020 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:21:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2023-04-01 07:21:56,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4648. [2023-04-01 07:21:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 2950 states have (on average 1.3196610169491525) internal successors, (3893), 3001 states have internal predecessors, (3893), 1196 states have call successors, (1196), 502 states have call predecessors, (1196), 501 states have return successors, (1255), 1165 states have call predecessors, (1255), 1193 states have call successors, (1255) [2023-04-01 07:21:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 6344 transitions. [2023-04-01 07:21:57,092 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 6344 transitions. Word has length 159 [2023-04-01 07:21:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:57,093 INFO L495 AbstractCegarLoop]: Abstraction has 4648 states and 6344 transitions. [2023-04-01 07:21:57,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 07:21:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 6344 transitions. [2023-04-01 07:21:57,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-04-01 07:21:57,104 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:57,104 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:21:57,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 07:21:57,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:57,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:57,105 INFO L85 PathProgramCache]: Analyzing trace with hash -431708690, now seen corresponding path program 1 times [2023-04-01 07:21:57,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:57,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39812067] [2023-04-01 07:21:57,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:57,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:57,239 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-01 07:21:57,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:57,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39812067] [2023-04-01 07:21:57,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39812067] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:57,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:57,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:57,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542793435] [2023-04-01 07:21:57,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:57,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:57,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:57,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:57,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:57,241 INFO L87 Difference]: Start difference. First operand 4648 states and 6344 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 07:21:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:57,750 INFO L93 Difference]: Finished difference Result 11289 states and 15326 transitions. [2023-04-01 07:21:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:21:57,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 155 [2023-04-01 07:21:57,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:57,779 INFO L225 Difference]: With dead ends: 11289 [2023-04-01 07:21:57,779 INFO L226 Difference]: Without dead ends: 6660 [2023-04-01 07:21:57,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:57,795 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 698 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:57,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2049 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:21:57,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6660 states. [2023-04-01 07:21:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6660 to 6629. [2023-04-01 07:21:57,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 4201 states have (on average 1.31183051654368) internal successors, (5511), 4276 states have internal predecessors, (5511), 1688 states have call successors, (1688), 740 states have call predecessors, (1688), 739 states have return successors, (1767), 1645 states have call predecessors, (1767), 1685 states have call successors, (1767) [2023-04-01 07:21:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 8966 transitions. [2023-04-01 07:21:57,998 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 8966 transitions. Word has length 155 [2023-04-01 07:21:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:57,998 INFO L495 AbstractCegarLoop]: Abstraction has 6629 states and 8966 transitions. [2023-04-01 07:21:57,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 07:21:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 8966 transitions. [2023-04-01 07:21:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 07:21:58,011 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:58,011 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-04-01 07:21:58,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 07:21:58,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:58,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:58,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1501137821, now seen corresponding path program 1 times [2023-04-01 07:21:58,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:58,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443275444] [2023-04-01 07:21:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:58,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-04-01 07:21:58,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:58,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443275444] [2023-04-01 07:21:58,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443275444] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:58,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:58,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 07:21:58,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260317828] [2023-04-01 07:21:58,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:58,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 07:21:58,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:58,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 07:21:58,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 07:21:58,333 INFO L87 Difference]: Start difference. First operand 6629 states and 8966 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-01 07:21:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:21:59,099 INFO L93 Difference]: Finished difference Result 10167 states and 13707 transitions. [2023-04-01 07:21:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 07:21:59,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 198 [2023-04-01 07:21:59,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:21:59,115 INFO L225 Difference]: With dead ends: 10167 [2023-04-01 07:21:59,115 INFO L226 Difference]: Without dead ends: 3554 [2023-04-01 07:21:59,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-01 07:21:59,134 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 12 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5013 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:21:59,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5013 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:21:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2023-04-01 07:21:59,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3407. [2023-04-01 07:21:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3407 states, 2157 states have (on average 1.311080203987019) internal successors, (2828), 2195 states have internal predecessors, (2828), 859 states have call successors, (859), 391 states have call predecessors, (859), 390 states have return successors, (899), 837 states have call predecessors, (899), 856 states have call successors, (899) [2023-04-01 07:21:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 4586 transitions. [2023-04-01 07:21:59,248 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 4586 transitions. Word has length 198 [2023-04-01 07:21:59,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:21:59,248 INFO L495 AbstractCegarLoop]: Abstraction has 3407 states and 4586 transitions. [2023-04-01 07:21:59,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-01 07:21:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 4586 transitions. [2023-04-01 07:21:59,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-01 07:21:59,257 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:21:59,257 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-04-01 07:21:59,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 07:21:59,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:21:59,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:21:59,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1297382387, now seen corresponding path program 1 times [2023-04-01 07:21:59,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:21:59,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404640821] [2023-04-01 07:21:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:21:59,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:21:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:21:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-04-01 07:21:59,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:21:59,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404640821] [2023-04-01 07:21:59,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404640821] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:21:59,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:21:59,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:21:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673272482] [2023-04-01 07:21:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:21:59,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:21:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:21:59,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:21:59,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:21:59,511 INFO L87 Difference]: Start difference. First operand 3407 states and 4586 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-01 07:22:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:00,020 INFO L93 Difference]: Finished difference Result 7766 states and 10453 transitions. [2023-04-01 07:22:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:22:00,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 199 [2023-04-01 07:22:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:00,037 INFO L225 Difference]: With dead ends: 7766 [2023-04-01 07:22:00,037 INFO L226 Difference]: Without dead ends: 4408 [2023-04-01 07:22:00,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:22:00,049 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 808 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:00,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1951 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:22:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2023-04-01 07:22:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4333. [2023-04-01 07:22:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 2776 states have (on average 1.3152017291066282) internal successors, (3651), 2823 states have internal predecessors, (3651), 1055 states have call successors, (1055), 501 states have call predecessors, (1055), 501 states have return successors, (1107), 1027 states have call predecessors, (1107), 1052 states have call successors, (1107) [2023-04-01 07:22:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 5813 transitions. [2023-04-01 07:22:00,174 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 5813 transitions. Word has length 199 [2023-04-01 07:22:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:00,174 INFO L495 AbstractCegarLoop]: Abstraction has 4333 states and 5813 transitions. [2023-04-01 07:22:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-01 07:22:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 5813 transitions. [2023-04-01 07:22:00,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-04-01 07:22:00,183 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:00,183 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-04-01 07:22:00,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 07:22:00,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:00,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:00,184 INFO L85 PathProgramCache]: Analyzing trace with hash 568444579, now seen corresponding path program 1 times [2023-04-01 07:22:00,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:00,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450856891] [2023-04-01 07:22:00,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:00,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-04-01 07:22:00,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:00,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450856891] [2023-04-01 07:22:00,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450856891] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:22:00,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:22:00,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 07:22:00,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155323736] [2023-04-01 07:22:00,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:22:00,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 07:22:00,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:22:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 07:22:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:22:00,570 INFO L87 Difference]: Start difference. First operand 4333 states and 5813 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-04-01 07:22:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:01,402 INFO L93 Difference]: Finished difference Result 8671 states and 11783 transitions. [2023-04-01 07:22:01,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 07:22:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 195 [2023-04-01 07:22:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:01,425 INFO L225 Difference]: With dead ends: 8671 [2023-04-01 07:22:01,426 INFO L226 Difference]: Without dead ends: 4387 [2023-04-01 07:22:01,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:22:01,440 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 2 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:01,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3983 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:22:01,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2023-04-01 07:22:01,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4373. [2023-04-01 07:22:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4373 states, 2804 states have (on average 1.3120542082738944) internal successors, (3679), 2855 states have internal predecessors, (3679), 1055 states have call successors, (1055), 501 states have call predecessors, (1055), 513 states have return successors, (1123), 1035 states have call predecessors, (1123), 1052 states have call successors, (1123) [2023-04-01 07:22:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 5857 transitions. [2023-04-01 07:22:01,591 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 5857 transitions. Word has length 195 [2023-04-01 07:22:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:01,592 INFO L495 AbstractCegarLoop]: Abstraction has 4373 states and 5857 transitions. [2023-04-01 07:22:01,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-04-01 07:22:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 5857 transitions. [2023-04-01 07:22:01,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-01 07:22:01,600 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:01,601 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:22:01,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 07:22:01,601 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:01,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:01,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1692664586, now seen corresponding path program 1 times [2023-04-01 07:22:01,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:01,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404085122] [2023-04-01 07:22:01,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:01,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-01 07:22:02,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404085122] [2023-04-01 07:22:02,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404085122] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:22:02,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:22:02,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 07:22:02,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184052726] [2023-04-01 07:22:02,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:22:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 07:22:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:22:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 07:22:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 07:22:02,145 INFO L87 Difference]: Start difference. First operand 4373 states and 5857 transitions. Second operand has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 07:22:02,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:22:02,835 INFO L93 Difference]: Finished difference Result 8727 states and 11698 transitions. [2023-04-01 07:22:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 07:22:02,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 210 [2023-04-01 07:22:02,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:22:02,851 INFO L225 Difference]: With dead ends: 8727 [2023-04-01 07:22:02,851 INFO L226 Difference]: Without dead ends: 4386 [2023-04-01 07:22:02,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:22:02,863 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 5 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 07:22:02,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2995 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 07:22:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2023-04-01 07:22:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4374. [2023-04-01 07:22:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4374 states, 2805 states have (on average 1.3119429590017826) internal successors, (3680), 2856 states have internal predecessors, (3680), 1055 states have call successors, (1055), 501 states have call predecessors, (1055), 513 states have return successors, (1123), 1035 states have call predecessors, (1123), 1052 states have call successors, (1123) [2023-04-01 07:22:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 5858 transitions. [2023-04-01 07:22:02,990 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 5858 transitions. Word has length 210 [2023-04-01 07:22:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:22:02,991 INFO L495 AbstractCegarLoop]: Abstraction has 4374 states and 5858 transitions. [2023-04-01 07:22:02,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 07:22:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 5858 transitions. [2023-04-01 07:22:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-04-01 07:22:02,999 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:22:03,000 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:22:03,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 07:22:03,000 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:22:03,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:22:03,001 INFO L85 PathProgramCache]: Analyzing trace with hash 856675289, now seen corresponding path program 1 times [2023-04-01 07:22:03,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:22:03,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926013886] [2023-04-01 07:22:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:22:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-01 07:22:03,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:22:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926013886] [2023-04-01 07:22:03,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926013886] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:22:03,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323101238] [2023-04-01 07:22:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:22:03,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:22:03,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:22:03,629 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 07:22:03,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 07:22:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:22:04,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 07:22:04,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:22:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-04-01 07:22:04,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 07:22:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-01 07:22:05,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323101238] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 07:22:05,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1395646204] [2023-04-01 07:22:05,081 INFO L159 IcfgInterpreter]: Started Sifa with 179 locations of interest [2023-04-01 07:22:05,082 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 07:22:05,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 07:22:05,088 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 07:22:05,088 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 07:22:13,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 148 for LOIs [2023-04-01 07:22:16,604 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 153 for LOIs