/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 [2023-04-03 04:49:02,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:49:02,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:49:02,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:49:02,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:49:02,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:49:02,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:49:02,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:49:02,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:49:02,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:49:02,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:49:02,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:49:02,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:49:02,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:49:02,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:49:02,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:49:02,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:49:02,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:49:02,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:49:02,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:49:02,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:49:02,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:49:02,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:49:02,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:49:02,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:49:02,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:49:02,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:49:02,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:49:02,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:49:02,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:49:02,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:49:02,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:49:02,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:49:02,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:49:02,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:49:02,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:49:02,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:49:02,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:49:02,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:49:02,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:49:02,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:49:02,673 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 [2023-04-03 04:49:02,685 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:49:02,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:49:02,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:49:02,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:49:02,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:49:02,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:49:02,686 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:49:02,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:49:02,687 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:49:02,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:49:02,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:49:02,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:49:02,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:49:02,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:49:02,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:49:02,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:49:02,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:49:02,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:49:02,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:49:02,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:49:02,831 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:49:02,831 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:49:02,832 INFO L432 ainManager$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 [2023-04-03 04:49:03,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:49:04,309 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:49:04,309 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 [2023-04-03 04:49:04,337 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1790d2f/072cfe27e67c4659a95eee3962f510f7/FLAG0cddc45aa [2023-04-03 04:49:04,349 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1790d2f/072cfe27e67c4659a95eee3962f510f7 [2023-04-03 04:49:04,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:49:04,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:49:04,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:49:04,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:49:04,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:49:04,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:49:04" (1/1) ... [2023-04-03 04:49:04,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d57419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:04, skipping insertion in model container [2023-04-03 04:49:04,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:49:04" (1/1) ... [2023-04-03 04:49:04,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:49:04,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:49:04,960 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] [2023-04-03 04:49:05,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:49:05,321 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:49:05,414 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] [2023-04-03 04:49:05,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:49:05,623 WARN L667 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:49:05,628 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:49:05,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05 WrapperNode [2023-04-03 04:49:05,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:49:05,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:49:05,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:49:05,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:49:05,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:49:05,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:49:05,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:49:05,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:49:05,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (1/1) ... [2023-04-03 04:49:05,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:49:05,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:49:05,880 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) [2023-04-03 04:49:05,886 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 [2023-04-03 04:49:05,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:49:05,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-04-03 04:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:49:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-03 04:49:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card_complete [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_recv [2023-04-03 04:49:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_complete [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_tx_complete [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_submit_rx_urb [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_free [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_probe [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_suspend [2023-04-03 04:49:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_resume [2023-04-03 04:49:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_disconnect [2023-04-03 04:49:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_tx_init [2023-04-03 04:49:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_rx_init [2023-04-03 04:49:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_sync [2023-04-03 04:49:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_data_sync [2023-04-03 04:49:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_host_to_card [2023-04-03 04:49:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_register_dev [2023-04-03 04:49:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unregister_dev [2023-04-03 04:49:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_prog_fw_w_helper [2023-04-03 04:49:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_dnld_fw [2023-04-03 04:49:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_submit_rx_urb [2023-04-03 04:49:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cmd_event_complete [2023-04-03 04:49:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_data_complete [2023-04-03 04:49:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_init_module [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_usb_cleanup_module [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_mwifiex_if_ops_1 [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-03 04:49:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_17 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_18 [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-03 04:49:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 04:49:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 04:49:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 04:49:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 04:49:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-03 04:49:05,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:49:05,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_2 [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_add_card [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_cancel_hs [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_deauthenticate_all [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_enable_hs [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_init_shutdown_fw [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_process_hs_config [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_process_sleep_confirm_resp [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_remove_card [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 04:49:05,925 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-03 04:49:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-03 04:49:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:49:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-03 04:49:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-04-03 04:49:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 04:49:05,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-04-03 04:49:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:49:05,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-04-03 04:49:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-03 04:49:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:49:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:49:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:49:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:49:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-03 04:49:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-03 04:49:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_mwifiex_if_ops_1 [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_process_sleep_confirm_resp [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_process_hs_config [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_deauthenticate_all [2023-04-03 04:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_init_shutdown_fw [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_add_card [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_remove_card [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_cancel_hs [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_enable_hs [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-04-03 04:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_17 [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_18 [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:49:05,941 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card_complete [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_submit_rx_urb [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_recv [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_complete [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_tx_complete [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_free [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_probe [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_suspend [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_resume [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_disconnect [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_tx_init [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_rx_init [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_sync [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_data_sync [2023-04-03 04:49:05,942 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_host_to_card [2023-04-03 04:49:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_register_dev [2023-04-03 04:49:05,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-03 04:49:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unregister_dev [2023-04-03 04:49:05,946 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_prog_fw_w_helper [2023-04-03 04:49:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:49:05,947 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_dnld_fw [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_submit_rx_urb [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cmd_event_complete [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_data_complete [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_init_module [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_usb_cleanup_module [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_2 [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-03 04:49:05,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:49:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:49:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:49:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:49:06,354 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:49:06,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:49:06,569 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:49:10,287 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:49:10,536 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:49:10,536 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 04:49:10,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:49:10 BoogieIcfgContainer [2023-04-03 04:49:10,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:49:10,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:49:10,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:49:10,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:49:10,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:49:04" (1/3) ... [2023-04-03 04:49:10,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48770768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:49:10, skipping insertion in model container [2023-04-03 04:49:10,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:49:05" (2/3) ... [2023-04-03 04:49:10,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48770768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:49:10, skipping insertion in model container [2023-04-03 04:49:10,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:49:10" (3/3) ... [2023-04-03 04:49:10,546 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 [2023-04-03 04:49:10,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:49:10,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:49:10,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:49:10,616 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;@7f69d2ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:49:10,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:49:10,622 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) [2023-04-03 04:49:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-03 04:49:10,633 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:10,633 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] [2023-04-03 04:49:10,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:10,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash 223833533, now seen corresponding path program 1 times [2023-04-03 04:49:10,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:10,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159302635] [2023-04-03 04:49:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:10,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-03 04:49:11,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159302635] [2023-04-03 04:49:11,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159302635] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:11,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:11,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:49:11,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150714411] [2023-04-03 04:49:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:11,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:49:11,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:49:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:49:11,189 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) [2023-04-03 04:49:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:11,677 INFO L93 Difference]: Finished difference Result 2378 states and 3276 transitions. [2023-04-03 04:49:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:49:11,679 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 [2023-04-03 04:49:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:11,693 INFO L225 Difference]: With dead ends: 2378 [2023-04-03 04:49:11,693 INFO L226 Difference]: Without dead ends: 1547 [2023-04-03 04:49:11,698 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 [2023-04-03 04:49:11,700 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 1042 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-04-03 04:49:11,701 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] [2023-04-03 04:49:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-04-03 04:49:11,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2023-04-03 04:49:11,808 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) [2023-04-03 04:49:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2096 transitions. [2023-04-03 04:49:11,815 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2096 transitions. Word has length 67 [2023-04-03 04:49:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:11,815 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2096 transitions. [2023-04-03 04:49:11,816 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) [2023-04-03 04:49:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2096 transitions. [2023-04-03 04:49:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-03 04:49:11,820 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:11,820 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] [2023-04-03 04:49:11,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:49:11,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:11,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:11,821 INFO L85 PathProgramCache]: Analyzing trace with hash 37916441, now seen corresponding path program 1 times [2023-04-03 04:49:11,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:11,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279573140] [2023-04-03 04:49:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-03 04:49:12,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:12,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279573140] [2023-04-03 04:49:12,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279573140] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:12,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:12,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 04:49:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108045351] [2023-04-03 04:49:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:12,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:49:12,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:12,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:49:12,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 04:49:12,186 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) [2023-04-03 04:49:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:13,650 INFO L93 Difference]: Finished difference Result 3079 states and 4209 transitions. [2023-04-03 04:49:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 04:49:13,650 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 [2023-04-03 04:49:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:13,664 INFO L225 Difference]: With dead ends: 3079 [2023-04-03 04:49:13,664 INFO L226 Difference]: Without dead ends: 3048 [2023-04-03 04:49:13,665 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 [2023-04-03 04:49:13,669 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:13,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 4893 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 04:49:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2023-04-03 04:49:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3048. [2023-04-03 04:49:13,768 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) [2023-04-03 04:49:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 4175 transitions. [2023-04-03 04:49:13,779 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 4175 transitions. Word has length 92 [2023-04-03 04:49:13,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:13,780 INFO L495 AbstractCegarLoop]: Abstraction has 3048 states and 4175 transitions. [2023-04-03 04:49:13,780 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) [2023-04-03 04:49:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 4175 transitions. [2023-04-03 04:49:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-03 04:49:13,789 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:13,789 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] [2023-04-03 04:49:13,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:49:13,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:13,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2117244190, now seen corresponding path program 1 times [2023-04-03 04:49:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:13,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2212630] [2023-04-03 04:49:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-03 04:49:14,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2212630] [2023-04-03 04:49:14,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2212630] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:14,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:14,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:49:14,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823063014] [2023-04-03 04:49:14,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:14,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:49:14,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:14,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:49:14,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:49:14,010 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) [2023-04-03 04:49:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:14,517 INFO L93 Difference]: Finished difference Result 7732 states and 10559 transitions. [2023-04-03 04:49:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:49:14,518 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 [2023-04-03 04:49:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:14,534 INFO L225 Difference]: With dead ends: 7732 [2023-04-03 04:49:14,534 INFO L226 Difference]: Without dead ends: 4703 [2023-04-03 04:49:14,544 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 [2023-04-03 04:49:14,549 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 [2023-04-03 04:49:14,553 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] [2023-04-03 04:49:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2023-04-03 04:49:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4648. [2023-04-03 04:49:14,752 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) [2023-04-03 04:49:14,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 6344 transitions. [2023-04-03 04:49:14,778 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 6344 transitions. Word has length 159 [2023-04-03 04:49:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:14,778 INFO L495 AbstractCegarLoop]: Abstraction has 4648 states and 6344 transitions. [2023-04-03 04:49:14,778 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) [2023-04-03 04:49:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 6344 transitions. [2023-04-03 04:49:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-04-03 04:49:14,788 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:14,788 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] [2023-04-03 04:49:14,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:49:14,788 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:14,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash -431708690, now seen corresponding path program 1 times [2023-04-03 04:49:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801221971] [2023-04-03 04:49:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:14,981 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:49:14,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:14,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801221971] [2023-04-03 04:49:14,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801221971] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:14,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:14,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:49:14,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555346309] [2023-04-03 04:49:14,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:14,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:49:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:14,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:49:14,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:49:14,983 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) [2023-04-03 04:49:15,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:15,599 INFO L93 Difference]: Finished difference Result 11289 states and 15326 transitions. [2023-04-03 04:49:15,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:49:15,600 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 [2023-04-03 04:49:15,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:15,632 INFO L225 Difference]: With dead ends: 11289 [2023-04-03 04:49:15,632 INFO L226 Difference]: Without dead ends: 6660 [2023-04-03 04:49:15,645 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 [2023-04-03 04:49:15,646 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 698 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:15,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2049 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:49:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6660 states. [2023-04-03 04:49:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6660 to 6629. [2023-04-03 04:49:16,012 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) [2023-04-03 04:49:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 8966 transitions. [2023-04-03 04:49:16,035 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 8966 transitions. Word has length 155 [2023-04-03 04:49:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:16,035 INFO L495 AbstractCegarLoop]: Abstraction has 6629 states and 8966 transitions. [2023-04-03 04:49:16,035 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) [2023-04-03 04:49:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 8966 transitions. [2023-04-03 04:49:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-03 04:49:16,048 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:16,048 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] [2023-04-03 04:49:16,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:49:16,048 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:16,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1501137821, now seen corresponding path program 1 times [2023-04-03 04:49:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470446833] [2023-04-03 04:49:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:16,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-04-03 04:49:16,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:16,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470446833] [2023-04-03 04:49:16,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470446833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:16,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:16,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 04:49:16,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860652198] [2023-04-03 04:49:16,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:16,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:49:16,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:16,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:49:16,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 04:49:16,339 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) [2023-04-03 04:49:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:17,311 INFO L93 Difference]: Finished difference Result 10167 states and 13707 transitions. [2023-04-03 04:49:17,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 04:49:17,311 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 [2023-04-03 04:49:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:17,328 INFO L225 Difference]: With dead ends: 10167 [2023-04-03 04:49:17,328 INFO L226 Difference]: Without dead ends: 3554 [2023-04-03 04:49:17,345 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 [2023-04-03 04:49:17,346 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 12 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:17,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5013 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 04:49:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2023-04-03 04:49:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3407. [2023-04-03 04:49:17,453 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) [2023-04-03 04:49:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 4586 transitions. [2023-04-03 04:49:17,535 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 4586 transitions. Word has length 198 [2023-04-03 04:49:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:17,535 INFO L495 AbstractCegarLoop]: Abstraction has 3407 states and 4586 transitions. [2023-04-03 04:49:17,536 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) [2023-04-03 04:49:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 4586 transitions. [2023-04-03 04:49:17,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-03 04:49:17,560 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:17,560 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] [2023-04-03 04:49:17,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:49:17,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:17,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1297382387, now seen corresponding path program 1 times [2023-04-03 04:49:17,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:17,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272452152] [2023-04-03 04:49:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-04-03 04:49:17,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:17,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272452152] [2023-04-03 04:49:17,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272452152] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:17,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:17,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:49:17,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840118801] [2023-04-03 04:49:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:17,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:49:17,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:17,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:49:17,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:49:17,869 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) [2023-04-03 04:49:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:18,471 INFO L93 Difference]: Finished difference Result 7766 states and 10453 transitions. [2023-04-03 04:49:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:49:18,472 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 [2023-04-03 04:49:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:18,487 INFO L225 Difference]: With dead ends: 7766 [2023-04-03 04:49:18,487 INFO L226 Difference]: Without dead ends: 4408 [2023-04-03 04:49:18,496 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 [2023-04-03 04:49:18,496 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 808 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:18,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1951 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:49:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2023-04-03 04:49:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4333. [2023-04-03 04:49:18,597 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) [2023-04-03 04:49:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 5813 transitions. [2023-04-03 04:49:18,611 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 5813 transitions. Word has length 199 [2023-04-03 04:49:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:18,611 INFO L495 AbstractCegarLoop]: Abstraction has 4333 states and 5813 transitions. [2023-04-03 04:49:18,611 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) [2023-04-03 04:49:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 5813 transitions. [2023-04-03 04:49:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-04-03 04:49:18,620 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:18,620 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:49:18,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:49:18,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:18,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 520721712, now seen corresponding path program 1 times [2023-04-03 04:49:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89452478] [2023-04-03 04:49:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-04-03 04:49:19,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:19,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89452478] [2023-04-03 04:49:19,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89452478] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:19,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:19,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:49:19,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363072356] [2023-04-03 04:49:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:19,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:49:19,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:19,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:49:19,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:49:19,048 INFO L87 Difference]: Start difference. First operand 4333 states and 5813 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-03 04:49:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:19,629 INFO L93 Difference]: Finished difference Result 8671 states and 11783 transitions. [2023-04-03 04:49:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:49:19,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 203 [2023-04-03 04:49:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:19,651 INFO L225 Difference]: With dead ends: 8671 [2023-04-03 04:49:19,652 INFO L226 Difference]: Without dead ends: 4387 [2023-04-03 04:49:19,664 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 [2023-04-03 04:49:19,665 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 2 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:19,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3983 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:49:19,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2023-04-03 04:49:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4373. [2023-04-03 04:49:19,761 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) [2023-04-03 04:49:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4373 states to 4373 states and 5857 transitions. [2023-04-03 04:49:19,772 INFO L78 Accepts]: Start accepts. Automaton has 4373 states and 5857 transitions. Word has length 203 [2023-04-03 04:49:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:19,774 INFO L495 AbstractCegarLoop]: Abstraction has 4373 states and 5857 transitions. [2023-04-03 04:49:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-03 04:49:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4373 states and 5857 transitions. [2023-04-03 04:49:19,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-03 04:49:19,781 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:19,781 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] [2023-04-03 04:49:19,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:49:19,781 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:19,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1692664586, now seen corresponding path program 1 times [2023-04-03 04:49:19,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:19,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959889573] [2023-04-03 04:49:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:19,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-03 04:49:20,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:20,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959889573] [2023-04-03 04:49:20,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959889573] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:49:20,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:49:20,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 04:49:20,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335137755] [2023-04-03 04:49:20,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:49:20,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 04:49:20,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:49:20,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 04:49:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 04:49:20,378 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) [2023-04-03 04:49:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:49:20,906 INFO L93 Difference]: Finished difference Result 8727 states and 11698 transitions. [2023-04-03 04:49:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:49:20,906 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 [2023-04-03 04:49:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:49:20,919 INFO L225 Difference]: With dead ends: 8727 [2023-04-03 04:49:20,919 INFO L226 Difference]: Without dead ends: 4386 [2023-04-03 04:49:20,929 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 [2023-04-03 04:49:20,930 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 5 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 04:49:20,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2995 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 04:49:20,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2023-04-03 04:49:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4374. [2023-04-03 04:49:21,023 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) [2023-04-03 04:49:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 5858 transitions. [2023-04-03 04:49:21,035 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 5858 transitions. Word has length 210 [2023-04-03 04:49:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:49:21,035 INFO L495 AbstractCegarLoop]: Abstraction has 4374 states and 5858 transitions. [2023-04-03 04:49:21,035 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) [2023-04-03 04:49:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 5858 transitions. [2023-04-03 04:49:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-04-03 04:49:21,043 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:49:21,043 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] [2023-04-03 04:49:21,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:49:21,043 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:49:21,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:49:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 856675289, now seen corresponding path program 1 times [2023-04-03 04:49:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:49:21,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392254396] [2023-04-03 04:49:21,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:21,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:49:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-03 04:49:21,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:49:21,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392254396] [2023-04-03 04:49:21,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392254396] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:49:21,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705896433] [2023-04-03 04:49:21,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:49:21,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:49:21,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:49:21,699 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) [2023-04-03 04:49:21,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:49:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:49:23,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-03 04:49:23,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:49:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-04-03 04:49:23,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:49:23,593 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-04-03 04:49:23,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705896433] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:49:23,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582049565] [2023-04-03 04:49:23,638 INFO L159 IcfgInterpreter]: Started Sifa with 179 locations of interest [2023-04-03 04:49:23,639 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:49:23,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:49:23,645 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:49:23,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:49:32,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 148 for LOIs [2023-04-03 04:49:35,735 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 153 for LOIs [2023-04-03 04:50:19,927 WARN L223 SmtUtils]: Spent 37.85s on a formula simplification. DAG size of input: 8383 DAG size of output: 170 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:50:58,886 WARN L223 SmtUtils]: Spent 37.83s on a formula simplification. DAG size of input: 8675 DAG size of output: 192 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:51:32,879 WARN L223 SmtUtils]: Spent 33.66s on a formula simplification. DAG size of input: 8092 DAG size of output: 196 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:52:12,979 WARN L223 SmtUtils]: Spent 38.22s on a formula simplification. DAG size of input: 8383 DAG size of output: 170 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:52:52,328 WARN L223 SmtUtils]: Spent 38.17s on a formula simplification. DAG size of input: 8675 DAG size of output: 192 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 04:53:30,831 WARN L223 SmtUtils]: Spent 37.27s on a formula simplification. DAG size of input: 8843 DAG size of output: 266 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)